The Continued Quest for Pediatric Readmission Risk Prediction

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While the use of pediatric readmission rates as a quality metric remains controversial, pediatric hospital-to-home transitions need improvement.1 As many as a third of pediatric readmissions are preventable,2 but the multifactorial and complex nature of factors that contribute to pediatric readmissions presents a challenge in tackling readmission. Several factors are associated with increased risk of readmission; these factors include both clinical and sociodemographic characteristics;3 however, we still have much to learn. Further, the only large trial of an intervention to prevent pediatric readmissions across all comers (nontargeted) was unsuccessful in decreasing reutilization.4 By contrast, various studies have succeeded in reducing readmission and/or emergency department revisit rates associated with inpatient interventions in select populations.5 Currently, however, no standardized or validated pediatric risk prediction tool can reliably identify the high-risk patients who may benefit from interventions. In the Journal of Hospital Medicine, Brittan and colleagues add to the literature base exploring the factors associated with an increased 30-day readmission risk by trialing an electronic health record (EHR)-based tool composed of three components: presence of home health, polypharmacy in the form of ≥6 medications, and presence of a caregiver who prefers a language other than English.6

This brief report contributes significantly to the literature. First, the presence of a tool embedded within the pediatric EHR and readily accessible at the point of clinical care is novel. Study authors purposefully chose components easily extractable from the EHR which update automatically. This infrastructure generates an automated score that is easily accessible to clinicians in real-time. Second, the transparency of the tool is notable given its display via the EHR’s “Discharge Readiness Report,” where a clinician can view not only the total composite score (1 point for each component) but also the specific components for which a point was allocated. Although a composite score in and of itself is potentially helpful, understanding specific factors that contribute to a patient’s increased risk of readmission allows for better targeting of interventions. For example, in Brittan’s simple, three-component model, the presence of polypharmacy might trigger a pharmacist to meet with the family prior to discharge to discuss indications for and how to properly administer medications. Finally, a multidisciplinary team composed of clinicians, nurse-family educators, case managers, social workers, and informatics experts developed and implemented this tool. Although the roll-out and longitudinal use of this tool is not described, the engagement of these multiple provider-types is likely to increase successful roll-out and utilization of the tool.

Unfortunately, the utility of this tool in predicting readmission is limited as evidenced by its low c-statistic. This limitation may be due to several reasons. The tool was not originally built as a tool to predict readmissions but rather an instrument to identify complex discharge care as part of a quality improvement initiative to improve discharge processes. Given the questions about readmission risk prediction, the authors explored the potential for the tool to predict readmission risk. The authors acknowledge that the tool excluded many known readmission risk factors based upon inconsistent documentation within the EHR and the desire to emphasize only modifiable factors. Thus, variables, including prior hospitalization which is a well-documented risk factor for readmissions (but not modifiable) and social determinants of health (which are not consistently documented), were excluded. Additionally, the included variable of “language preference” may have been a considerably broad characteristic. Limited English proficiency has been increasingly recognized as a construct placing patients at higher risk for adverse outcomes. However, caregivers with high English proficiency also exhibit varying degrees of health literacy. The inclusion of health literacy may be additive to a readmission risk prediction tool. Finally, the outcome is not well-described with regard to identification of “unplanned” events. Thus, their outcome measure may have included planned admissions for which the readmission risk prediction tool would be irrelevant.

In summary, Brittan and colleagues engaged a multidisciplinary group of providers to address discharge planning processes and leveraged the EHR to support their efforts in the form of a brief screening tool. Although this tool was not predictive of hospital readmissions, it highlights the opportunity to better utilize the EHR to gather meaningful, real-time data and subsequently use this information to positively impact our clinical care and allocation of resources. The tool should serve as a stepping stone to building a more extensive tool with inclusion of other known and potential readmission risk factors, thus resulting in a clinically relevant readmission risk prediction tool.

 

 

Disclosures

The authors have nothing to disclose.

References

1. Solan LG, Beck AF, Brunswick SA, et al. The family perspective on hospital to home transitions: a qualitative study. Pediatrics 2015;136(6):e1539-1549. doi: 10.1542/peds.2015-2098. PubMed
2. Toomey SL, Peltz A, Loren S, et al. Potentially preventable 30-Day hospital readmissions at a children’s hospital. Pediatrics. 2016;138(2). doi: 10.1542/peds.2015-4182. PubMed
3. Berry JG, Hall DE, Kuo DZ, et al. Hospital utilization and characteristics of patients experiencing recurrent readmissions within children’s hospitals. JAMA. 2011;305(7):682-690. doi: 10.1001/jama.2011.122. PubMed
4. Auger KA, Simmons JM, Tubbs-Cooley H, et al. Hospital to home outcomes (H2O) randomized trial of a post-discharge nurse home visit. Pediatrics. In press. PubMed
5. Auger KA, Kenyon CC, Feudtner C, Davis MM. Pediatric hospital discharge interventions to reduce subsequent utilization: a systematic review. J Hosp Med. 2014;9(4):251-260. doi: 10.1002/jhm.2134. PubMed
6. Brittan MS, Martin SL, Anderson, Moss A,Torok MR. An electronic health record tool designed to improve pediatric hospital discharge has low predictive utility for readmissions [published online ahead of print August 29, 2018]. J Hosp Med. doi: 10.12788/jhm.3043. PubMed

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While the use of pediatric readmission rates as a quality metric remains controversial, pediatric hospital-to-home transitions need improvement.1 As many as a third of pediatric readmissions are preventable,2 but the multifactorial and complex nature of factors that contribute to pediatric readmissions presents a challenge in tackling readmission. Several factors are associated with increased risk of readmission; these factors include both clinical and sociodemographic characteristics;3 however, we still have much to learn. Further, the only large trial of an intervention to prevent pediatric readmissions across all comers (nontargeted) was unsuccessful in decreasing reutilization.4 By contrast, various studies have succeeded in reducing readmission and/or emergency department revisit rates associated with inpatient interventions in select populations.5 Currently, however, no standardized or validated pediatric risk prediction tool can reliably identify the high-risk patients who may benefit from interventions. In the Journal of Hospital Medicine, Brittan and colleagues add to the literature base exploring the factors associated with an increased 30-day readmission risk by trialing an electronic health record (EHR)-based tool composed of three components: presence of home health, polypharmacy in the form of ≥6 medications, and presence of a caregiver who prefers a language other than English.6

This brief report contributes significantly to the literature. First, the presence of a tool embedded within the pediatric EHR and readily accessible at the point of clinical care is novel. Study authors purposefully chose components easily extractable from the EHR which update automatically. This infrastructure generates an automated score that is easily accessible to clinicians in real-time. Second, the transparency of the tool is notable given its display via the EHR’s “Discharge Readiness Report,” where a clinician can view not only the total composite score (1 point for each component) but also the specific components for which a point was allocated. Although a composite score in and of itself is potentially helpful, understanding specific factors that contribute to a patient’s increased risk of readmission allows for better targeting of interventions. For example, in Brittan’s simple, three-component model, the presence of polypharmacy might trigger a pharmacist to meet with the family prior to discharge to discuss indications for and how to properly administer medications. Finally, a multidisciplinary team composed of clinicians, nurse-family educators, case managers, social workers, and informatics experts developed and implemented this tool. Although the roll-out and longitudinal use of this tool is not described, the engagement of these multiple provider-types is likely to increase successful roll-out and utilization of the tool.

Unfortunately, the utility of this tool in predicting readmission is limited as evidenced by its low c-statistic. This limitation may be due to several reasons. The tool was not originally built as a tool to predict readmissions but rather an instrument to identify complex discharge care as part of a quality improvement initiative to improve discharge processes. Given the questions about readmission risk prediction, the authors explored the potential for the tool to predict readmission risk. The authors acknowledge that the tool excluded many known readmission risk factors based upon inconsistent documentation within the EHR and the desire to emphasize only modifiable factors. Thus, variables, including prior hospitalization which is a well-documented risk factor for readmissions (but not modifiable) and social determinants of health (which are not consistently documented), were excluded. Additionally, the included variable of “language preference” may have been a considerably broad characteristic. Limited English proficiency has been increasingly recognized as a construct placing patients at higher risk for adverse outcomes. However, caregivers with high English proficiency also exhibit varying degrees of health literacy. The inclusion of health literacy may be additive to a readmission risk prediction tool. Finally, the outcome is not well-described with regard to identification of “unplanned” events. Thus, their outcome measure may have included planned admissions for which the readmission risk prediction tool would be irrelevant.

In summary, Brittan and colleagues engaged a multidisciplinary group of providers to address discharge planning processes and leveraged the EHR to support their efforts in the form of a brief screening tool. Although this tool was not predictive of hospital readmissions, it highlights the opportunity to better utilize the EHR to gather meaningful, real-time data and subsequently use this information to positively impact our clinical care and allocation of resources. The tool should serve as a stepping stone to building a more extensive tool with inclusion of other known and potential readmission risk factors, thus resulting in a clinically relevant readmission risk prediction tool.

 

 

Disclosures

The authors have nothing to disclose.

While the use of pediatric readmission rates as a quality metric remains controversial, pediatric hospital-to-home transitions need improvement.1 As many as a third of pediatric readmissions are preventable,2 but the multifactorial and complex nature of factors that contribute to pediatric readmissions presents a challenge in tackling readmission. Several factors are associated with increased risk of readmission; these factors include both clinical and sociodemographic characteristics;3 however, we still have much to learn. Further, the only large trial of an intervention to prevent pediatric readmissions across all comers (nontargeted) was unsuccessful in decreasing reutilization.4 By contrast, various studies have succeeded in reducing readmission and/or emergency department revisit rates associated with inpatient interventions in select populations.5 Currently, however, no standardized or validated pediatric risk prediction tool can reliably identify the high-risk patients who may benefit from interventions. In the Journal of Hospital Medicine, Brittan and colleagues add to the literature base exploring the factors associated with an increased 30-day readmission risk by trialing an electronic health record (EHR)-based tool composed of three components: presence of home health, polypharmacy in the form of ≥6 medications, and presence of a caregiver who prefers a language other than English.6

This brief report contributes significantly to the literature. First, the presence of a tool embedded within the pediatric EHR and readily accessible at the point of clinical care is novel. Study authors purposefully chose components easily extractable from the EHR which update automatically. This infrastructure generates an automated score that is easily accessible to clinicians in real-time. Second, the transparency of the tool is notable given its display via the EHR’s “Discharge Readiness Report,” where a clinician can view not only the total composite score (1 point for each component) but also the specific components for which a point was allocated. Although a composite score in and of itself is potentially helpful, understanding specific factors that contribute to a patient’s increased risk of readmission allows for better targeting of interventions. For example, in Brittan’s simple, three-component model, the presence of polypharmacy might trigger a pharmacist to meet with the family prior to discharge to discuss indications for and how to properly administer medications. Finally, a multidisciplinary team composed of clinicians, nurse-family educators, case managers, social workers, and informatics experts developed and implemented this tool. Although the roll-out and longitudinal use of this tool is not described, the engagement of these multiple provider-types is likely to increase successful roll-out and utilization of the tool.

Unfortunately, the utility of this tool in predicting readmission is limited as evidenced by its low c-statistic. This limitation may be due to several reasons. The tool was not originally built as a tool to predict readmissions but rather an instrument to identify complex discharge care as part of a quality improvement initiative to improve discharge processes. Given the questions about readmission risk prediction, the authors explored the potential for the tool to predict readmission risk. The authors acknowledge that the tool excluded many known readmission risk factors based upon inconsistent documentation within the EHR and the desire to emphasize only modifiable factors. Thus, variables, including prior hospitalization which is a well-documented risk factor for readmissions (but not modifiable) and social determinants of health (which are not consistently documented), were excluded. Additionally, the included variable of “language preference” may have been a considerably broad characteristic. Limited English proficiency has been increasingly recognized as a construct placing patients at higher risk for adverse outcomes. However, caregivers with high English proficiency also exhibit varying degrees of health literacy. The inclusion of health literacy may be additive to a readmission risk prediction tool. Finally, the outcome is not well-described with regard to identification of “unplanned” events. Thus, their outcome measure may have included planned admissions for which the readmission risk prediction tool would be irrelevant.

In summary, Brittan and colleagues engaged a multidisciplinary group of providers to address discharge planning processes and leveraged the EHR to support their efforts in the form of a brief screening tool. Although this tool was not predictive of hospital readmissions, it highlights the opportunity to better utilize the EHR to gather meaningful, real-time data and subsequently use this information to positively impact our clinical care and allocation of resources. The tool should serve as a stepping stone to building a more extensive tool with inclusion of other known and potential readmission risk factors, thus resulting in a clinically relevant readmission risk prediction tool.

 

 

Disclosures

The authors have nothing to disclose.

References

1. Solan LG, Beck AF, Brunswick SA, et al. The family perspective on hospital to home transitions: a qualitative study. Pediatrics 2015;136(6):e1539-1549. doi: 10.1542/peds.2015-2098. PubMed
2. Toomey SL, Peltz A, Loren S, et al. Potentially preventable 30-Day hospital readmissions at a children’s hospital. Pediatrics. 2016;138(2). doi: 10.1542/peds.2015-4182. PubMed
3. Berry JG, Hall DE, Kuo DZ, et al. Hospital utilization and characteristics of patients experiencing recurrent readmissions within children’s hospitals. JAMA. 2011;305(7):682-690. doi: 10.1001/jama.2011.122. PubMed
4. Auger KA, Simmons JM, Tubbs-Cooley H, et al. Hospital to home outcomes (H2O) randomized trial of a post-discharge nurse home visit. Pediatrics. In press. PubMed
5. Auger KA, Kenyon CC, Feudtner C, Davis MM. Pediatric hospital discharge interventions to reduce subsequent utilization: a systematic review. J Hosp Med. 2014;9(4):251-260. doi: 10.1002/jhm.2134. PubMed
6. Brittan MS, Martin SL, Anderson, Moss A,Torok MR. An electronic health record tool designed to improve pediatric hospital discharge has low predictive utility for readmissions [published online ahead of print August 29, 2018]. J Hosp Med. doi: 10.12788/jhm.3043. PubMed

References

1. Solan LG, Beck AF, Brunswick SA, et al. The family perspective on hospital to home transitions: a qualitative study. Pediatrics 2015;136(6):e1539-1549. doi: 10.1542/peds.2015-2098. PubMed
2. Toomey SL, Peltz A, Loren S, et al. Potentially preventable 30-Day hospital readmissions at a children’s hospital. Pediatrics. 2016;138(2). doi: 10.1542/peds.2015-4182. PubMed
3. Berry JG, Hall DE, Kuo DZ, et al. Hospital utilization and characteristics of patients experiencing recurrent readmissions within children’s hospitals. JAMA. 2011;305(7):682-690. doi: 10.1001/jama.2011.122. PubMed
4. Auger KA, Simmons JM, Tubbs-Cooley H, et al. Hospital to home outcomes (H2O) randomized trial of a post-discharge nurse home visit. Pediatrics. In press. PubMed
5. Auger KA, Kenyon CC, Feudtner C, Davis MM. Pediatric hospital discharge interventions to reduce subsequent utilization: a systematic review. J Hosp Med. 2014;9(4):251-260. doi: 10.1002/jhm.2134. PubMed
6. Brittan MS, Martin SL, Anderson, Moss A,Torok MR. An electronic health record tool designed to improve pediatric hospital discharge has low predictive utility for readmissions [published online ahead of print August 29, 2018]. J Hosp Med. doi: 10.12788/jhm.3043. PubMed

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Katherine A. Auger, MD, MSc, 3333 Burnet Ave, MLC 9016, Cincinnati OH 45220, 513.803.3234; Telephone: 513-803-3234; Fax: 513-803-9244; E-mail: [email protected]
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An Electronic Health Record Tool Designed to Improve Pediatric Hospital Discharge has Low Predictive Utility for Readmissions

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As hospitalized children become more medically complex, hospital-to-home care transitions will become increasingly challenging. During a quality improvement (QI) initiative, we developed an electronic tool to improve the quality of our hospital discharge process.

We modeled the concept of a paper-based Early Screen for Discharge Planning – Child Version, which identifies children with multiple medical conditions, home nursing-care needs, tube feedings, presence of intravenous lines or drains, or post hospital care that requires coordination.1We opted for an electronic tool to automate screening and increase visibilty of patients’ care transitional needs via the electronic health record (EHR).

The tool was designed by our QI team to address weaknesses in our discharge process (eg, discharge instructions that are not translated appropriately) and causes of preventable readmission at our institution (eg, discharge teaching, home care, and medication-related problems).2,3 The tool’s selected components comprised those that might complicate or delay discharge care and included indicators of home health, polypharmacy, and caregiver language preference. Additional features were considered but withheld from the initial tool for several reasons noted in the methods.

We describe the development and implementation of this electronic tool. Given the paucity of pediatric risk models, we conducted an analysis of the tool’s potential to predict readmissions. We anticipated good predictive performance because the tool includes measures previously associated with readmission (eg, technology dependence, polypharmacy, and language barrier).4-7 If successful in distinguishing readmission, this embedded discharge planning tool could also serve as a pediatric readmission risk score.

METHODS

Setting

This work was conducted at the Children’s Hospital Colorado as part of a national QI collaborative. The hospital’s EHR is Epic (Verona, Wisconsin). The project was approved as QI by the Children’s Hospital Organizational Research Risk and Quality Improvement Review Panel, precluding review from the Colorado Multiple Institutional Review Board.

Tool Design, Implementation, and Use

A team of clinicians, nurse–family educators, case managers, social workers, and informatics experts helped design the instrument between 2014 and 2015. In addition to the selected features (number of discharge medications, presence of home health, and language preference), we considered adding the number of consulting specialists but had previously improved our process for scheduling follow-up appointments. Diagnoses were not systematically or discretely documented to be reliably extracted in real time. We excluded known readmission predictor variables (such as length of stay [LOS] and prior hospitalizations) from the initial model to maintain emphasis on the modifiable discharge processes. Additional considerations, such as health literacy and social determinants, were not systematically measured to be operationally usable.

 

 

To generate the score, the clinical documentation of home-health orders categorizes children with home care. Each home-care equipment or service category is documented in separate flowsheet rows, allowing for identification of distinct categories (Table). Total parenteral nutrition, intravenous medications, and durable medical equipment and supplies are counted as home care. The number of discharge medications is approximated by inpatient medication orders and finalized as the number of discharge medication orders. The medications include new, historic, and as-needed medications (if included among discharge medication orders). Home oxygen is not counted as medication. The preferred language of the family caregiver is recorded during patient registration or by the admitting inpatient nurse and is gleaned from either of these flowsheet sources.



The electronic score is displayed within the EHR’s Discharge Readiness Report8 and updates automatically as relevant data are entered. The tool displays the individual components and as a composite of 0-3 points. To register a point in each category, a patient needs to exceed (1) the dichotomous discharge medications criterion (ie, ≥6 medications), (2) the dichotomous home-health order criterion (ie, ≥1 home-care order), and (3) to possess documentation of a non-English speaking caregiver. The tool serves as a visual reminder of discharge planning needs during daily coordination rounds attended by clinicians, nursing managers, case managers, and social workers. Case managers use the home-care alert to verify the accuracy of home-care orders.

Evaluation of Predictive Utility for Readmission

We performed a retrospective cohort study on patients aged 0-21 years who were discharged between January 1, 2014 and December 30, 2015. This study was performed to determine the optimal cut points for the continuous variables (discharge medications and home-care orders) and to evaluate the predictive value of the composite score.

Unplanned readmission within 30 days was used as the primary outcome. The index hospitalization was randomly selected for patients with >1 admissions to avoid biasing the results with multiple hospitalizations from individual patients.

Patient characteristics were summarized using percentages for categorical variables and the median and interquartile range (IQR) for continuous variables. We examined bivariate associations for each of the tool’s predictor elements with readmission using Chi-square and Wilcoxon tests (level of statistical significance was set at 0.05). Receiver operating characteristics (ROC) analyses established optimal dichotomization points for medications and home-care orders using the maximized Youden’s index (sensitivity + specificity – 1).9 Dichotomization of these variables was selected for ease of implementation and interpretation. Similarly, the composite score was treated as a categorical predictor and because sensitivity analysis using it as a continuous predictor did not improve the tool's discriminatory properties.

The area under the ROC curve (AUC) was estimated to evaluate the performance of the composite score (as a categorical variable) using a predictive logistic regression model. To establish internal validity, we performed 10-fold cross validation analysis.10 Measures of predictive performance included the c statistic and the Brier score. The c statistic represents the discriminative ability of a model. A model with AUC > 0.9 signifies high discrimination, 0.7-0.9 indicates moderate discrimination, and 0.5-0.7 suggests low discrimination. The Brier score is a measure of the overall accuracy of the predictions and ranges from 0 to 1, with 0 representing perfect accuracy.10 Analyses were performed using SAS v9.4.

 

 

RESULTS

Cohort Characteristics

Analysis was restricted to patients with at least 30 days of available follow-up time after the index admission (N = 29,542 patients; Figure). Patient characteristics from the index admission are shown in the Table. The median age was 5 years, and median LOS was 2 days. A total of 19% of patients were discharged with ≥6 discharge medications, 15% received ≥1 home-health orders, and 10% were documented to have a non-English speaking family caregiver. Almost 28% had a composite score of 1 and 8% a score ≥2. The unplanned 30-day readmission rate was 4%. In bivariate analysis, children with readmission had longer LOS, more discharge medications, and more home care than children without readmission. Caregiver language preference was not associated with readmission.

ROC analysis indicated that dichotomizing number of medications at ≥6 vs. <6 and home health at 0 vs. ≥1 categories maximized the sensitivity and specificity for predicting 30-day unplanned readmissions. In predictive logistic regression analysis, the odds of readmission was significantly higher in children with a composite score of 1 vs. 0 (odds ratio [OR], 1.7; 95% CI 1.5-2) and a score of ≥2 vs. 0 (OR, 4.2; 95% CI, 3.6-4.9). The c statistic for this model was 0.62, and the Brier score was 0.037. Internal validation of the predictive logistic regression model yielded identical results.

DISCUSSION

We describe the development of an electronic decision support tool designed to facilitate hospital discharge. The tool alerts inpatient teams to the presence of potentially complex home cares and language barriers but has low discriminatory performance for unplanned readmissions.
In retrospect, the model’s weaker performance is not surprising given the lack of extensive and rigorous statistical analysis, which is customary for predictive model development.11 This study demonstrates that predictors with ORs indicating a strong relationship (eg, OR > 3.0) may not successfully discriminate between those with and without an outcome of interest.12 Using a composite score ≥1 to define “high risk” misses intervening on half of readmitted children and leads to intervention on almost 10,000 nonreadmitted children; a threshold of ≥2 misses 82% of readmitted children and leads to intervention on more than 2,000 nonreadmitted children. Published pediatric models with superior predictive performance (AUC, 0.71-0.78) would be more suitable for risk assessment.13-15

Since implementation, we have not audited frequency of the tool’s use or whether care is changed with its use. Such feedback would be a first step in demonstrating its utility in QI. Our organization is undertaking an overhaul of the discharge process to reduce unnecessary discharge delays, with plans to actively incorporate the instrument in workflows. For example, the tool can be used to prompt more timely and complete translation and interpretation, verify home-care order accuracy, and flag appropriate families for early and optimal teaching in uses of home-care equipment. The medication component can be used to improve safe discharge practices for children with polypharmacy (eg, as a reminder to fill prescriptions and review the accuracy of medication lists prior to discharge). These interventions may generate more impact on discharge efficiency and family reported measures of satisfaction or discharge readiness than readmission outcomes.

Despite its potential benefit in QI, this instrument will need further validation to ensure that it helps target factors that it intends to capture. About 75% of patients were missing home-care values in the original data and were assumed to have not received home health. While there was no missing data for medication number or language, we opted not to assess accuracy of these variables. Therefore, patients may have been misclassified due to clinical documentation omissions or errors.

The instrument’s framework is relatively simple and should reduce barriers to implementation elsewhere. However, this tool was developed for one setting, and the design may require adjustment for other environments. Regional or institutional variation in home-health eligibility or clinical documentation may impact home-care and medication scores. The score may change at discharge if home-health or medication orders are modified late. The tool performs none of the following: measurement of regimen complexity, identification of high-risk medications, distinguishing of new versus preexisting medications/home care, nor measurement of health literacy, parent education, or psychosocial risk. Adding these features might enhance the model. Finally, readmission rates did not rise linearly with each added point. A more sophisticated scoring system (eg, differentially weighting each risk factor) may also improve the performance of the tool.

Despite these limitations, we have implemented a real-time electronic tool with practical potential to improve the discharge process but with low utility for distinguishing readmissions. Additional validation and research is needed to evaluate its impact on hospital discharge quality metrics and family reported outcome measures.
 

 

Disclosures

The authors have no relevant financial relationships to disclose.

Funding

This study was supported by an institutional Clinical and Operational Effectiveness and Patient Safety Small Grants Program

References

1. Holland DE, Conlon PM, Rohlik GM, Gillard KL, Messner PK, Mundy LM. Identifying hospitalized pediatric patients for early discharge planning: a feasibility study. J Pediatr Nurs. 2015;30(3):454-462. doi: 10.1016/j.pedn.2014.12.011. PubMed
2. Brittan M, Albright K, Cifuentes M, Jimenez-Zambrano A, Kempe A. Parent and provider perspectives on pediatric readmissions: what can we learn about readiness for discharge? Hosp Pediatr. 2015;5(11):559-565. doi: 10.1542/hpeds.2015-0034. PubMed
3. Brittan M FV, Martin S, Moss A, Keller D. Provider feedback: a potential method to reduce readmissions. Hosp Pediatr. 2016;6(11):684-688. PubMed
4. Berry JG, Hall DE, Kuo DZ, et al. Hospital utilization and characteristics of patients experiencing recurrent readmissions within children’s hospitals. JAMA 2011;305(7):682-690. doi: 10.1001/jama.2011.122. PubMed
5. Feudtner C, Levin JE, Srivastava R, et al. How well can hospital readmission be predicted in a cohort of hospitalized children? A retrospective, multicenter study. Pediatrics 2009;123(1):286-293. doi: 10.1542/peds.2007-3395. PubMed
6. Jurgens V, Spaeder MC, Pavuluri P, Waldman Z. Hospital readmission in children with complex chronic conditions discharged from subacute care. Hosp Pediatr. 2014;4(3):153-158. doi: 10.1542/hpeds.2013-0094. PubMed
7. Karliner LS, Kim SE, Meltzer DO, Auerbach AD. Influence of language barriers on outcomes of hospital care for general medicine inpatients. J Hosp Med. 2010;5(5):276-282. doi: 10.1002/jhm.658. PubMed
8. Tyler A, Boyer A, Martin S, Neiman J, Bakel LA, Brittan M. Development of a discharge readiness report within the electronic health record-A discharge planning tool. J Hosp Med. 2014;9(8):533-539. doi: 10.1002/jhm.2212. PubMed
9. Youden WJ. Index for rating diagnostic tests. Cancer 1950;3(1):32-35. doi: 10.1002/1097-0142(1950)3:1<32::AID-CNCR2820030106>3.0.CO;2-3. PubMed
10. Steyerberg EW, Harrell FE, Jr., Borsboom GJ, Eijkemans MJ, Vergouwe Y, Habbema JD. Internal validation of predictive models: efficiency of some procedures for logistic regression analysis. J Clin Epidemiol. 2001;54(8):774-781. doi: 10.1016/S0895-4356(01)00341-9. PubMed
11. Kansagara D, Englander H, Salanitro A, et al. Risk prediction models for hospital readmission: a systematic review. JAMA 2011;306(15):1688-1698. doi: 10.1001/jama.2011.1515. PubMed
12. Pepe MS, Janes H, Longton G, Leisenring W, Newcomb P. Limitations of the odds ratio in gauging the performance of a diagnostic, prognostic, or screening marker. Am J Epidemiol. 2004;159(9):882-890. doi: 10.1093/aje/kwh101. PubMed
13. Coller RJ, Klitzner TS, Lerner CF, Chung PJ. Predictors of 30-day readmission and association with primary care follow-up plans. J Pediatr. 2013;163(4):1027-1033. doi: 10.1016/j.jpeds.2013.04.013. PubMed
14. Jovanovic M, Radovanovic S, Vukicevic M, Van Poucke S, Delibasic B. Building interpretable predictive models for pediatric hospital readmission using Tree-Lasso logistic regression. Artif Intell Med. 2016;72:12-21. doi: 10.1016/j.artmed.2016.07.003. PubMed
15. Naessens JM, Knoebel E, Johnson M, Branda M. ISQUA16-1722 predicting pediatric readmissions. Int J Qual Health Care. 2016;28(suppl_1):24-25. doi: 10.1093/intqhc/mzw104.34. 

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Journal of Hospital Medicine 13(11)
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As hospitalized children become more medically complex, hospital-to-home care transitions will become increasingly challenging. During a quality improvement (QI) initiative, we developed an electronic tool to improve the quality of our hospital discharge process.

We modeled the concept of a paper-based Early Screen for Discharge Planning – Child Version, which identifies children with multiple medical conditions, home nursing-care needs, tube feedings, presence of intravenous lines or drains, or post hospital care that requires coordination.1We opted for an electronic tool to automate screening and increase visibilty of patients’ care transitional needs via the electronic health record (EHR).

The tool was designed by our QI team to address weaknesses in our discharge process (eg, discharge instructions that are not translated appropriately) and causes of preventable readmission at our institution (eg, discharge teaching, home care, and medication-related problems).2,3 The tool’s selected components comprised those that might complicate or delay discharge care and included indicators of home health, polypharmacy, and caregiver language preference. Additional features were considered but withheld from the initial tool for several reasons noted in the methods.

We describe the development and implementation of this electronic tool. Given the paucity of pediatric risk models, we conducted an analysis of the tool’s potential to predict readmissions. We anticipated good predictive performance because the tool includes measures previously associated with readmission (eg, technology dependence, polypharmacy, and language barrier).4-7 If successful in distinguishing readmission, this embedded discharge planning tool could also serve as a pediatric readmission risk score.

METHODS

Setting

This work was conducted at the Children’s Hospital Colorado as part of a national QI collaborative. The hospital’s EHR is Epic (Verona, Wisconsin). The project was approved as QI by the Children’s Hospital Organizational Research Risk and Quality Improvement Review Panel, precluding review from the Colorado Multiple Institutional Review Board.

Tool Design, Implementation, and Use

A team of clinicians, nurse–family educators, case managers, social workers, and informatics experts helped design the instrument between 2014 and 2015. In addition to the selected features (number of discharge medications, presence of home health, and language preference), we considered adding the number of consulting specialists but had previously improved our process for scheduling follow-up appointments. Diagnoses were not systematically or discretely documented to be reliably extracted in real time. We excluded known readmission predictor variables (such as length of stay [LOS] and prior hospitalizations) from the initial model to maintain emphasis on the modifiable discharge processes. Additional considerations, such as health literacy and social determinants, were not systematically measured to be operationally usable.

 

 

To generate the score, the clinical documentation of home-health orders categorizes children with home care. Each home-care equipment or service category is documented in separate flowsheet rows, allowing for identification of distinct categories (Table). Total parenteral nutrition, intravenous medications, and durable medical equipment and supplies are counted as home care. The number of discharge medications is approximated by inpatient medication orders and finalized as the number of discharge medication orders. The medications include new, historic, and as-needed medications (if included among discharge medication orders). Home oxygen is not counted as medication. The preferred language of the family caregiver is recorded during patient registration or by the admitting inpatient nurse and is gleaned from either of these flowsheet sources.



The electronic score is displayed within the EHR’s Discharge Readiness Report8 and updates automatically as relevant data are entered. The tool displays the individual components and as a composite of 0-3 points. To register a point in each category, a patient needs to exceed (1) the dichotomous discharge medications criterion (ie, ≥6 medications), (2) the dichotomous home-health order criterion (ie, ≥1 home-care order), and (3) to possess documentation of a non-English speaking caregiver. The tool serves as a visual reminder of discharge planning needs during daily coordination rounds attended by clinicians, nursing managers, case managers, and social workers. Case managers use the home-care alert to verify the accuracy of home-care orders.

Evaluation of Predictive Utility for Readmission

We performed a retrospective cohort study on patients aged 0-21 years who were discharged between January 1, 2014 and December 30, 2015. This study was performed to determine the optimal cut points for the continuous variables (discharge medications and home-care orders) and to evaluate the predictive value of the composite score.

Unplanned readmission within 30 days was used as the primary outcome. The index hospitalization was randomly selected for patients with >1 admissions to avoid biasing the results with multiple hospitalizations from individual patients.

Patient characteristics were summarized using percentages for categorical variables and the median and interquartile range (IQR) for continuous variables. We examined bivariate associations for each of the tool’s predictor elements with readmission using Chi-square and Wilcoxon tests (level of statistical significance was set at 0.05). Receiver operating characteristics (ROC) analyses established optimal dichotomization points for medications and home-care orders using the maximized Youden’s index (sensitivity + specificity – 1).9 Dichotomization of these variables was selected for ease of implementation and interpretation. Similarly, the composite score was treated as a categorical predictor and because sensitivity analysis using it as a continuous predictor did not improve the tool's discriminatory properties.

The area under the ROC curve (AUC) was estimated to evaluate the performance of the composite score (as a categorical variable) using a predictive logistic regression model. To establish internal validity, we performed 10-fold cross validation analysis.10 Measures of predictive performance included the c statistic and the Brier score. The c statistic represents the discriminative ability of a model. A model with AUC > 0.9 signifies high discrimination, 0.7-0.9 indicates moderate discrimination, and 0.5-0.7 suggests low discrimination. The Brier score is a measure of the overall accuracy of the predictions and ranges from 0 to 1, with 0 representing perfect accuracy.10 Analyses were performed using SAS v9.4.

 

 

RESULTS

Cohort Characteristics

Analysis was restricted to patients with at least 30 days of available follow-up time after the index admission (N = 29,542 patients; Figure). Patient characteristics from the index admission are shown in the Table. The median age was 5 years, and median LOS was 2 days. A total of 19% of patients were discharged with ≥6 discharge medications, 15% received ≥1 home-health orders, and 10% were documented to have a non-English speaking family caregiver. Almost 28% had a composite score of 1 and 8% a score ≥2. The unplanned 30-day readmission rate was 4%. In bivariate analysis, children with readmission had longer LOS, more discharge medications, and more home care than children without readmission. Caregiver language preference was not associated with readmission.

ROC analysis indicated that dichotomizing number of medications at ≥6 vs. <6 and home health at 0 vs. ≥1 categories maximized the sensitivity and specificity for predicting 30-day unplanned readmissions. In predictive logistic regression analysis, the odds of readmission was significantly higher in children with a composite score of 1 vs. 0 (odds ratio [OR], 1.7; 95% CI 1.5-2) and a score of ≥2 vs. 0 (OR, 4.2; 95% CI, 3.6-4.9). The c statistic for this model was 0.62, and the Brier score was 0.037. Internal validation of the predictive logistic regression model yielded identical results.

DISCUSSION

We describe the development of an electronic decision support tool designed to facilitate hospital discharge. The tool alerts inpatient teams to the presence of potentially complex home cares and language barriers but has low discriminatory performance for unplanned readmissions.
In retrospect, the model’s weaker performance is not surprising given the lack of extensive and rigorous statistical analysis, which is customary for predictive model development.11 This study demonstrates that predictors with ORs indicating a strong relationship (eg, OR > 3.0) may not successfully discriminate between those with and without an outcome of interest.12 Using a composite score ≥1 to define “high risk” misses intervening on half of readmitted children and leads to intervention on almost 10,000 nonreadmitted children; a threshold of ≥2 misses 82% of readmitted children and leads to intervention on more than 2,000 nonreadmitted children. Published pediatric models with superior predictive performance (AUC, 0.71-0.78) would be more suitable for risk assessment.13-15

Since implementation, we have not audited frequency of the tool’s use or whether care is changed with its use. Such feedback would be a first step in demonstrating its utility in QI. Our organization is undertaking an overhaul of the discharge process to reduce unnecessary discharge delays, with plans to actively incorporate the instrument in workflows. For example, the tool can be used to prompt more timely and complete translation and interpretation, verify home-care order accuracy, and flag appropriate families for early and optimal teaching in uses of home-care equipment. The medication component can be used to improve safe discharge practices for children with polypharmacy (eg, as a reminder to fill prescriptions and review the accuracy of medication lists prior to discharge). These interventions may generate more impact on discharge efficiency and family reported measures of satisfaction or discharge readiness than readmission outcomes.

Despite its potential benefit in QI, this instrument will need further validation to ensure that it helps target factors that it intends to capture. About 75% of patients were missing home-care values in the original data and were assumed to have not received home health. While there was no missing data for medication number or language, we opted not to assess accuracy of these variables. Therefore, patients may have been misclassified due to clinical documentation omissions or errors.

The instrument’s framework is relatively simple and should reduce barriers to implementation elsewhere. However, this tool was developed for one setting, and the design may require adjustment for other environments. Regional or institutional variation in home-health eligibility or clinical documentation may impact home-care and medication scores. The score may change at discharge if home-health or medication orders are modified late. The tool performs none of the following: measurement of regimen complexity, identification of high-risk medications, distinguishing of new versus preexisting medications/home care, nor measurement of health literacy, parent education, or psychosocial risk. Adding these features might enhance the model. Finally, readmission rates did not rise linearly with each added point. A more sophisticated scoring system (eg, differentially weighting each risk factor) may also improve the performance of the tool.

Despite these limitations, we have implemented a real-time electronic tool with practical potential to improve the discharge process but with low utility for distinguishing readmissions. Additional validation and research is needed to evaluate its impact on hospital discharge quality metrics and family reported outcome measures.
 

 

Disclosures

The authors have no relevant financial relationships to disclose.

Funding

This study was supported by an institutional Clinical and Operational Effectiveness and Patient Safety Small Grants Program

As hospitalized children become more medically complex, hospital-to-home care transitions will become increasingly challenging. During a quality improvement (QI) initiative, we developed an electronic tool to improve the quality of our hospital discharge process.

We modeled the concept of a paper-based Early Screen for Discharge Planning – Child Version, which identifies children with multiple medical conditions, home nursing-care needs, tube feedings, presence of intravenous lines or drains, or post hospital care that requires coordination.1We opted for an electronic tool to automate screening and increase visibilty of patients’ care transitional needs via the electronic health record (EHR).

The tool was designed by our QI team to address weaknesses in our discharge process (eg, discharge instructions that are not translated appropriately) and causes of preventable readmission at our institution (eg, discharge teaching, home care, and medication-related problems).2,3 The tool’s selected components comprised those that might complicate or delay discharge care and included indicators of home health, polypharmacy, and caregiver language preference. Additional features were considered but withheld from the initial tool for several reasons noted in the methods.

We describe the development and implementation of this electronic tool. Given the paucity of pediatric risk models, we conducted an analysis of the tool’s potential to predict readmissions. We anticipated good predictive performance because the tool includes measures previously associated with readmission (eg, technology dependence, polypharmacy, and language barrier).4-7 If successful in distinguishing readmission, this embedded discharge planning tool could also serve as a pediatric readmission risk score.

METHODS

Setting

This work was conducted at the Children’s Hospital Colorado as part of a national QI collaborative. The hospital’s EHR is Epic (Verona, Wisconsin). The project was approved as QI by the Children’s Hospital Organizational Research Risk and Quality Improvement Review Panel, precluding review from the Colorado Multiple Institutional Review Board.

Tool Design, Implementation, and Use

A team of clinicians, nurse–family educators, case managers, social workers, and informatics experts helped design the instrument between 2014 and 2015. In addition to the selected features (number of discharge medications, presence of home health, and language preference), we considered adding the number of consulting specialists but had previously improved our process for scheduling follow-up appointments. Diagnoses were not systematically or discretely documented to be reliably extracted in real time. We excluded known readmission predictor variables (such as length of stay [LOS] and prior hospitalizations) from the initial model to maintain emphasis on the modifiable discharge processes. Additional considerations, such as health literacy and social determinants, were not systematically measured to be operationally usable.

 

 

To generate the score, the clinical documentation of home-health orders categorizes children with home care. Each home-care equipment or service category is documented in separate flowsheet rows, allowing for identification of distinct categories (Table). Total parenteral nutrition, intravenous medications, and durable medical equipment and supplies are counted as home care. The number of discharge medications is approximated by inpatient medication orders and finalized as the number of discharge medication orders. The medications include new, historic, and as-needed medications (if included among discharge medication orders). Home oxygen is not counted as medication. The preferred language of the family caregiver is recorded during patient registration or by the admitting inpatient nurse and is gleaned from either of these flowsheet sources.



The electronic score is displayed within the EHR’s Discharge Readiness Report8 and updates automatically as relevant data are entered. The tool displays the individual components and as a composite of 0-3 points. To register a point in each category, a patient needs to exceed (1) the dichotomous discharge medications criterion (ie, ≥6 medications), (2) the dichotomous home-health order criterion (ie, ≥1 home-care order), and (3) to possess documentation of a non-English speaking caregiver. The tool serves as a visual reminder of discharge planning needs during daily coordination rounds attended by clinicians, nursing managers, case managers, and social workers. Case managers use the home-care alert to verify the accuracy of home-care orders.

Evaluation of Predictive Utility for Readmission

We performed a retrospective cohort study on patients aged 0-21 years who were discharged between January 1, 2014 and December 30, 2015. This study was performed to determine the optimal cut points for the continuous variables (discharge medications and home-care orders) and to evaluate the predictive value of the composite score.

Unplanned readmission within 30 days was used as the primary outcome. The index hospitalization was randomly selected for patients with >1 admissions to avoid biasing the results with multiple hospitalizations from individual patients.

Patient characteristics were summarized using percentages for categorical variables and the median and interquartile range (IQR) for continuous variables. We examined bivariate associations for each of the tool’s predictor elements with readmission using Chi-square and Wilcoxon tests (level of statistical significance was set at 0.05). Receiver operating characteristics (ROC) analyses established optimal dichotomization points for medications and home-care orders using the maximized Youden’s index (sensitivity + specificity – 1).9 Dichotomization of these variables was selected for ease of implementation and interpretation. Similarly, the composite score was treated as a categorical predictor and because sensitivity analysis using it as a continuous predictor did not improve the tool's discriminatory properties.

The area under the ROC curve (AUC) was estimated to evaluate the performance of the composite score (as a categorical variable) using a predictive logistic regression model. To establish internal validity, we performed 10-fold cross validation analysis.10 Measures of predictive performance included the c statistic and the Brier score. The c statistic represents the discriminative ability of a model. A model with AUC > 0.9 signifies high discrimination, 0.7-0.9 indicates moderate discrimination, and 0.5-0.7 suggests low discrimination. The Brier score is a measure of the overall accuracy of the predictions and ranges from 0 to 1, with 0 representing perfect accuracy.10 Analyses were performed using SAS v9.4.

 

 

RESULTS

Cohort Characteristics

Analysis was restricted to patients with at least 30 days of available follow-up time after the index admission (N = 29,542 patients; Figure). Patient characteristics from the index admission are shown in the Table. The median age was 5 years, and median LOS was 2 days. A total of 19% of patients were discharged with ≥6 discharge medications, 15% received ≥1 home-health orders, and 10% were documented to have a non-English speaking family caregiver. Almost 28% had a composite score of 1 and 8% a score ≥2. The unplanned 30-day readmission rate was 4%. In bivariate analysis, children with readmission had longer LOS, more discharge medications, and more home care than children without readmission. Caregiver language preference was not associated with readmission.

ROC analysis indicated that dichotomizing number of medications at ≥6 vs. <6 and home health at 0 vs. ≥1 categories maximized the sensitivity and specificity for predicting 30-day unplanned readmissions. In predictive logistic regression analysis, the odds of readmission was significantly higher in children with a composite score of 1 vs. 0 (odds ratio [OR], 1.7; 95% CI 1.5-2) and a score of ≥2 vs. 0 (OR, 4.2; 95% CI, 3.6-4.9). The c statistic for this model was 0.62, and the Brier score was 0.037. Internal validation of the predictive logistic regression model yielded identical results.

DISCUSSION

We describe the development of an electronic decision support tool designed to facilitate hospital discharge. The tool alerts inpatient teams to the presence of potentially complex home cares and language barriers but has low discriminatory performance for unplanned readmissions.
In retrospect, the model’s weaker performance is not surprising given the lack of extensive and rigorous statistical analysis, which is customary for predictive model development.11 This study demonstrates that predictors with ORs indicating a strong relationship (eg, OR > 3.0) may not successfully discriminate between those with and without an outcome of interest.12 Using a composite score ≥1 to define “high risk” misses intervening on half of readmitted children and leads to intervention on almost 10,000 nonreadmitted children; a threshold of ≥2 misses 82% of readmitted children and leads to intervention on more than 2,000 nonreadmitted children. Published pediatric models with superior predictive performance (AUC, 0.71-0.78) would be more suitable for risk assessment.13-15

Since implementation, we have not audited frequency of the tool’s use or whether care is changed with its use. Such feedback would be a first step in demonstrating its utility in QI. Our organization is undertaking an overhaul of the discharge process to reduce unnecessary discharge delays, with plans to actively incorporate the instrument in workflows. For example, the tool can be used to prompt more timely and complete translation and interpretation, verify home-care order accuracy, and flag appropriate families for early and optimal teaching in uses of home-care equipment. The medication component can be used to improve safe discharge practices for children with polypharmacy (eg, as a reminder to fill prescriptions and review the accuracy of medication lists prior to discharge). These interventions may generate more impact on discharge efficiency and family reported measures of satisfaction or discharge readiness than readmission outcomes.

Despite its potential benefit in QI, this instrument will need further validation to ensure that it helps target factors that it intends to capture. About 75% of patients were missing home-care values in the original data and were assumed to have not received home health. While there was no missing data for medication number or language, we opted not to assess accuracy of these variables. Therefore, patients may have been misclassified due to clinical documentation omissions or errors.

The instrument’s framework is relatively simple and should reduce barriers to implementation elsewhere. However, this tool was developed for one setting, and the design may require adjustment for other environments. Regional or institutional variation in home-health eligibility or clinical documentation may impact home-care and medication scores. The score may change at discharge if home-health or medication orders are modified late. The tool performs none of the following: measurement of regimen complexity, identification of high-risk medications, distinguishing of new versus preexisting medications/home care, nor measurement of health literacy, parent education, or psychosocial risk. Adding these features might enhance the model. Finally, readmission rates did not rise linearly with each added point. A more sophisticated scoring system (eg, differentially weighting each risk factor) may also improve the performance of the tool.

Despite these limitations, we have implemented a real-time electronic tool with practical potential to improve the discharge process but with low utility for distinguishing readmissions. Additional validation and research is needed to evaluate its impact on hospital discharge quality metrics and family reported outcome measures.
 

 

Disclosures

The authors have no relevant financial relationships to disclose.

Funding

This study was supported by an institutional Clinical and Operational Effectiveness and Patient Safety Small Grants Program

References

1. Holland DE, Conlon PM, Rohlik GM, Gillard KL, Messner PK, Mundy LM. Identifying hospitalized pediatric patients for early discharge planning: a feasibility study. J Pediatr Nurs. 2015;30(3):454-462. doi: 10.1016/j.pedn.2014.12.011. PubMed
2. Brittan M, Albright K, Cifuentes M, Jimenez-Zambrano A, Kempe A. Parent and provider perspectives on pediatric readmissions: what can we learn about readiness for discharge? Hosp Pediatr. 2015;5(11):559-565. doi: 10.1542/hpeds.2015-0034. PubMed
3. Brittan M FV, Martin S, Moss A, Keller D. Provider feedback: a potential method to reduce readmissions. Hosp Pediatr. 2016;6(11):684-688. PubMed
4. Berry JG, Hall DE, Kuo DZ, et al. Hospital utilization and characteristics of patients experiencing recurrent readmissions within children’s hospitals. JAMA 2011;305(7):682-690. doi: 10.1001/jama.2011.122. PubMed
5. Feudtner C, Levin JE, Srivastava R, et al. How well can hospital readmission be predicted in a cohort of hospitalized children? A retrospective, multicenter study. Pediatrics 2009;123(1):286-293. doi: 10.1542/peds.2007-3395. PubMed
6. Jurgens V, Spaeder MC, Pavuluri P, Waldman Z. Hospital readmission in children with complex chronic conditions discharged from subacute care. Hosp Pediatr. 2014;4(3):153-158. doi: 10.1542/hpeds.2013-0094. PubMed
7. Karliner LS, Kim SE, Meltzer DO, Auerbach AD. Influence of language barriers on outcomes of hospital care for general medicine inpatients. J Hosp Med. 2010;5(5):276-282. doi: 10.1002/jhm.658. PubMed
8. Tyler A, Boyer A, Martin S, Neiman J, Bakel LA, Brittan M. Development of a discharge readiness report within the electronic health record-A discharge planning tool. J Hosp Med. 2014;9(8):533-539. doi: 10.1002/jhm.2212. PubMed
9. Youden WJ. Index for rating diagnostic tests. Cancer 1950;3(1):32-35. doi: 10.1002/1097-0142(1950)3:1<32::AID-CNCR2820030106>3.0.CO;2-3. PubMed
10. Steyerberg EW, Harrell FE, Jr., Borsboom GJ, Eijkemans MJ, Vergouwe Y, Habbema JD. Internal validation of predictive models: efficiency of some procedures for logistic regression analysis. J Clin Epidemiol. 2001;54(8):774-781. doi: 10.1016/S0895-4356(01)00341-9. PubMed
11. Kansagara D, Englander H, Salanitro A, et al. Risk prediction models for hospital readmission: a systematic review. JAMA 2011;306(15):1688-1698. doi: 10.1001/jama.2011.1515. PubMed
12. Pepe MS, Janes H, Longton G, Leisenring W, Newcomb P. Limitations of the odds ratio in gauging the performance of a diagnostic, prognostic, or screening marker. Am J Epidemiol. 2004;159(9):882-890. doi: 10.1093/aje/kwh101. PubMed
13. Coller RJ, Klitzner TS, Lerner CF, Chung PJ. Predictors of 30-day readmission and association with primary care follow-up plans. J Pediatr. 2013;163(4):1027-1033. doi: 10.1016/j.jpeds.2013.04.013. PubMed
14. Jovanovic M, Radovanovic S, Vukicevic M, Van Poucke S, Delibasic B. Building interpretable predictive models for pediatric hospital readmission using Tree-Lasso logistic regression. Artif Intell Med. 2016;72:12-21. doi: 10.1016/j.artmed.2016.07.003. PubMed
15. Naessens JM, Knoebel E, Johnson M, Branda M. ISQUA16-1722 predicting pediatric readmissions. Int J Qual Health Care. 2016;28(suppl_1):24-25. doi: 10.1093/intqhc/mzw104.34. 

References

1. Holland DE, Conlon PM, Rohlik GM, Gillard KL, Messner PK, Mundy LM. Identifying hospitalized pediatric patients for early discharge planning: a feasibility study. J Pediatr Nurs. 2015;30(3):454-462. doi: 10.1016/j.pedn.2014.12.011. PubMed
2. Brittan M, Albright K, Cifuentes M, Jimenez-Zambrano A, Kempe A. Parent and provider perspectives on pediatric readmissions: what can we learn about readiness for discharge? Hosp Pediatr. 2015;5(11):559-565. doi: 10.1542/hpeds.2015-0034. PubMed
3. Brittan M FV, Martin S, Moss A, Keller D. Provider feedback: a potential method to reduce readmissions. Hosp Pediatr. 2016;6(11):684-688. PubMed
4. Berry JG, Hall DE, Kuo DZ, et al. Hospital utilization and characteristics of patients experiencing recurrent readmissions within children’s hospitals. JAMA 2011;305(7):682-690. doi: 10.1001/jama.2011.122. PubMed
5. Feudtner C, Levin JE, Srivastava R, et al. How well can hospital readmission be predicted in a cohort of hospitalized children? A retrospective, multicenter study. Pediatrics 2009;123(1):286-293. doi: 10.1542/peds.2007-3395. PubMed
6. Jurgens V, Spaeder MC, Pavuluri P, Waldman Z. Hospital readmission in children with complex chronic conditions discharged from subacute care. Hosp Pediatr. 2014;4(3):153-158. doi: 10.1542/hpeds.2013-0094. PubMed
7. Karliner LS, Kim SE, Meltzer DO, Auerbach AD. Influence of language barriers on outcomes of hospital care for general medicine inpatients. J Hosp Med. 2010;5(5):276-282. doi: 10.1002/jhm.658. PubMed
8. Tyler A, Boyer A, Martin S, Neiman J, Bakel LA, Brittan M. Development of a discharge readiness report within the electronic health record-A discharge planning tool. J Hosp Med. 2014;9(8):533-539. doi: 10.1002/jhm.2212. PubMed
9. Youden WJ. Index for rating diagnostic tests. Cancer 1950;3(1):32-35. doi: 10.1002/1097-0142(1950)3:1<32::AID-CNCR2820030106>3.0.CO;2-3. PubMed
10. Steyerberg EW, Harrell FE, Jr., Borsboom GJ, Eijkemans MJ, Vergouwe Y, Habbema JD. Internal validation of predictive models: efficiency of some procedures for logistic regression analysis. J Clin Epidemiol. 2001;54(8):774-781. doi: 10.1016/S0895-4356(01)00341-9. PubMed
11. Kansagara D, Englander H, Salanitro A, et al. Risk prediction models for hospital readmission: a systematic review. JAMA 2011;306(15):1688-1698. doi: 10.1001/jama.2011.1515. PubMed
12. Pepe MS, Janes H, Longton G, Leisenring W, Newcomb P. Limitations of the odds ratio in gauging the performance of a diagnostic, prognostic, or screening marker. Am J Epidemiol. 2004;159(9):882-890. doi: 10.1093/aje/kwh101. PubMed
13. Coller RJ, Klitzner TS, Lerner CF, Chung PJ. Predictors of 30-day readmission and association with primary care follow-up plans. J Pediatr. 2013;163(4):1027-1033. doi: 10.1016/j.jpeds.2013.04.013. PubMed
14. Jovanovic M, Radovanovic S, Vukicevic M, Van Poucke S, Delibasic B. Building interpretable predictive models for pediatric hospital readmission using Tree-Lasso logistic regression. Artif Intell Med. 2016;72:12-21. doi: 10.1016/j.artmed.2016.07.003. PubMed
15. Naessens JM, Knoebel E, Johnson M, Branda M. ISQUA16-1722 predicting pediatric readmissions. Int J Qual Health Care. 2016;28(suppl_1):24-25. doi: 10.1093/intqhc/mzw104.34. 

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Journal of Hospital Medicine 13(11)
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A Dark Horse Diagnosis

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Thu, 11/29/2018 - 15:16

A 73-year-old man presented to the emergency department in late winter with fevers, myalgias, fatigue, low back pain, and poor oral intake. Four days earlier, he had fallen and hit his head. His partner also noticed a few episodes of confusion in the days leading up to presentation.

 

The patient’s symptoms are nonspecific. Fevers prompt the consideration of systemic infection, though fevers can also be seen in a broad range of noninfectious processes, including malignancy, vasculitis, autoimmune conditions, endocrinopathies, and drug reaction. The clinical picture warrants prompt and comprehensive evaluation, beginning with further detailed history (current illnesses, exposures, travel, vaccinations, medications, cancer screenings, weight change) and a careful physical examination, which will help guide laboratory testing and imaging.

His past medical history was notable for coronary artery disease for which he underwent coronary artery bypass grafting five years prior, hypertension, hyperlipidemia, diet-controlled type 2 diabetes mellitus, gastroesophageal reflux disease, osteoarthritis leading to chronic knee and hand pain, and a history of mildly low testosterone levels. His medications included hydrocodone and acetaminophen, metoprolol tartrate, omeprazole, topical testosterone gel (prescribed for daily use, used intermittently), and aspirin. He was retired and lived in rural Michigan with his female partner. He previously worked as a truck driver and used to train racehorses. He had quit smoking five years earlier. He denied alcohol or injection drug use.

 

The patient has significant underlying medical conditions. Considering infectious causes of his symptoms, it is notable that he has no reported immunodeficiency. It would be relevant to know if he has been tested for HIV. His rural residence and work with horses raise the possibility of zoonotic infections, including plague (Yersinia pestis), brucellosis (Brucella species), Q fever (Coxiella burnetti), Rhodococcus equi, or group C or G Streptococci. Information about tuberculosis risk factors, other geographic exposures, recent dental work, and ill contacts might be helpful to elucidate the causes of this nonspecific febrile illness with a possible CNS component. With regard to malignancy, it would be helpful to ask about recent weight loss, lymphadenopathy, and prior cancer screenings. Considering other etiologies, he does not report a history of autoimmune or endocrine conditions. However, it is important to consider a vasculitis, such as giant cell arteritis or polyarteritis nodosa, autoimmune conditions, and endocrinopathies such as thyrotoxicosis. The differential diagnosis for his clinical syndrome remains broad.

Vital signs were temperature 37.3°C, heart rate 88 beats per minute, respiratory rate 18 breaths per minute, blood pressure 105/64 mmHg, and oxygen saturation 93% on room air. Oral examination revealed poor dentition. The heart had a normal rate and regular rhythm with no murmurs, rubs, or gallops, and lungs were clear to auscultation bilaterally. The abdomen was unremarkable. Examination of the back was notable for mild tenderness to palpation over the sacrum. He was oriented to person, place, and time, with intact cranial nerves and a nonfocal neurologic examination. The remainder of his examination was normal. The white blood cell (WBC) count was 11.1 × 103/μL, with 84% neutrophils and 9% bands, hemoglobin 13.6 g/dL, platelet count 54 × 103/μL, sodium 122 mmol/L, potassium 3.3 mmol/L, chloride 89 mmol/L, bicarbonate 21 mmol/L, creatinine 1.64 mg/dL, albumin 2.7 g/dL, alkaline phosphatase 136 U/L, AST 60 U/L, ALT 37 U/L, and total bilirubin 2.1 mg/dL.

 

 

He had presented to the emergency department five days earlier with fever, flank pain, nausea, vomiting, and weakness. At that time, he had a temperature of 38.2°C, but vital signs otherwise had been normal. Laboratory studies had revealed WBC count 14.0 × 103/μL, hemoglobin 13.7 g/dL, platelet count 175 × 103/μL, sodium 129 mmol/L, chloride 97 mmol/dL, bicarbonate 23 mmol/L, creatinine 1.1 mg/dL, and total bilirubin 1.6 mg/dL. Urinalysis had been negative. He had received one liter of intravenous normal saline and ketorolac for pain and had been discharged with the diagnosis of a viral illness.

A picture of a progressive, subacute illness with multisystem involvement appears to be emerging, and there are several abnormalities consistent with infection, including fever, leukocytosis with bandemia, thrombocytopenia, renal dysfunction, and elevated bilirubin. His borderline hypotension may be due to uninterrupted use of his antihypertensive medication in the setting of poor oral intake or may indicate incipient sepsis. Focal sacral tenderness raises the possibility of vertebral osteomyelitis or epidural abscess, either from a contiguous focus of infection from the surrounding structures, or as a site of seeding from bacteremia. His prior confusion episodes might have been secondary to a systemic process; however, CNS imaging should be done, given the history of confusion and recent fall. Further diagnostic studies are warranted, including: blood cultures; peripheral blood smear; imaging of the spine, chest, abdomen, and pelvis; electrocardiogram; and possibly echocardiogram. Although noninfectious etiologies should not be discounted, the constellation of findings is more compatible with infection.

Two sets of blood cultures and a viral respiratory swab were obtained. Computed tomography (CT) of the head without contrast was negative for acute bleeding or other intracranial pathology. Lumbosacral radiography revealed degenerative changes with intact alignment of the sacrum. The patient was admitted with plans to pursue lumbar puncture if altered mental status recurred. The viral swab was negative. Within 24 hours, one set of blood cultures (both bottles) grew lactose-negative, oxidase-negative, gram-negative rods.

Gram-negative rods (GNRs) rarely are contaminants in blood cultures and should be considered significant until proven otherwise. Prompt empiric therapy and investigation to identify the primary source of bacteremia must be initiated. Although the most common GNRs isolated from blood cultures are enteric coliform organisms such as E. coli, Klebsiella, and Enterobacter, these typically are lactose-positive. Additional possibilities should be considered, including Salmonella species or other organisms comprising the “HACEK” group. This latter group is commonly associated with endocarditis, but the majority are oxidase-positive and have more fastidious growth requirements. Although there are other gram-negative organisms to consider, they have other distinguishing characteristics that have not been indicated in the microbiology results. Broad-spectrum antibiotic therapy is appropriate while awaiting the final identification of the GNR. A thorough search for a primary source and secondary sites of hematogenous seeding should be conducted. His only localizing symptom was tenderness over the sacrum, and this should be further assessed by sensitive imaging such as magnetic resonance imaging (MRI). The identity of the GNR would guide further diagnostic evaluation. For example, a respiratory organism such as Haemophilus influenzae would prompt a CT scan of the chest. Isolation of an enteric or a coliform GNR such as E. coli would prompt abdominal and pelvic imaging to assess for occult abscess. An “HACEK” group organism would prompt echocardiography to evaluate for endocarditis.

He was started on piperacillin–tazobactam. GNR bacteremia without a clear source prompted a CT of the chest, abdomen, and pelvis with and without contrast. The images were unremarkable, with the exception of a signal abnormality in the left psoas muscle concerning for abscess (Figure 1). MRI of the same region revealed L2-4 osteomyelitis and discitis with bilateral psoas abscesses but without epidural abscess (Figure 2).



Psoas abscess is an uncommon entity that is difficult to diagnose clinically. Differentiation of primary and secondary psoas abscesses can be helpful because of the differences in microbiology, pathogenesis, presentation, and management. Primary abscess refers to hematogenous seeding of the psoas and associated muscles from a distant site of infection through bacteremia. This is typically monomicrobial, most commonly due to Staphylococcus aureus, although psoas abscess due to GNRs, Mycobacterium tuberculosis, Brucella species, Burkholderia pseudomallei, or other organisms has also been described. Secondary abscess refers to the spread of infection from a contiguous source such as bowel, kidney, hip joint, or vascular structure. In this patient’s case, it is uncertain whether hematogenous seeding of the spine and the psoas muscle occurred concurrently or whether one site was initially seeded, followed by contiguous spread to the adjacent structures.

 

 

Because of increasing reports of antibiotic resistance in GNRs, even in community-acquired infections, it is appropriate to initially treat with a broad-spectrum antibiotic such as a fourth-generation cephalosporin or carbapenem while awaiting identification and susceptibility results to guide definitive therapy. In addition to antimicrobial therapy, treatment of psoas abscess usually requires drainage. Vertebral osteomyelitis from a hematogenous source can often be treated with antibiotics alone, as long as there are no associated complications such as epidural abscess and spine instability. Imaging should be reviewed for pathology of the surrounding structures, and surgical consultation should be obtained.

Neurosurgery, Interventional Radiology, and Infectious Disease services were consulted. Antibiotic coverage was expanded to vancomycin, cefepime, and metronidazole due to the possibility of polymicrobial infection. No surgical intervention was recommended since the abscesses were too small to drain.

The next day, the GNR was identified as Serratia marcescens.

S. marcescens is a widely distributed organism in the environment, but not a common component of endogenous human flora. Serratia is generally considered as an opportunistic nosocomial pathogen. Community-acquired infection with this organism is unusual and implies exogenous acquisition. A careful re-evaluation of exposures, including injection drug use or other parenteral exposures is important to identify the likely source of infection, as these have been previously linked to outbreaks of environmental organisms. Based on the presumed pathogenesis of infection and the initial microbiology suggesting monomicrobial Serratia infection, antibiotics should be narrowed based on the susceptibility results. There is concern that antibiotics might not adequately penetrate the abscesses and result in a lack of clinical improvement and/or lead to the emergence of antibiotic resistance during therapy. This is an important concern with Serratia, which typically harbors an AmpC beta-lactamase that can mediate resistance to broad-spectrum cephalosporins. If medical therapy alone without drainage is planned, short-interval re-imaging is warranted.

Blood cultures from days two and three of hospitalization also grew S. marcescens. No other organisms grew. Based on culture sensitivity data, antibiotics were narrowed to ceftriaxone.

This surprising culture result prompted the medical team to obtain screening laboratory tests for immunocompromising conditions and to revisit the patient’s history. His type 2 diabetes mellitus was well controlled with a hemoglobin A1c of 6.5%. HIV testing was negative. Further questioning of the patient revealed that he had fallen from a truck onto rocks four months prior, injuring his back and hip, but without puncture of the skin or loss of consciousness; he denied recent falls or other injuries but reported significant chronic knee pain. He had not been hospitalized recently. He had never taken corticosteroids or immunomodulatory medications. He continued to deny injection drug use. He did, however, clarify that his work with racehorses, which was originally understood to be a prior hobby, was ongoing, including recent work of cleaning the stables.

The following morning, he experienced confusion, rigors, and hypoxia, which prompted transfer to the intensive care unit (ICU).

Acute worsening during treatment is worrisome, and could be a potential complication of his infection or treatment – or even a separate process altogether. Knee pain in the setting of bacteremia raises the possibility of septic or crystal-induced arthritis and warrants imaging. Confusion and hypoxia might represent secondary sites of seeding from bacteremia (CNS infection and pneumonia, respectively) or manifestations of endocarditis, the latter being unusual for Serratia. An echocardiogram should be obtained. Other neurologic causes, including seizure, should also be considered. Further evaluation by chest imaging and repeat neurologic examination and imaging should be performed. Emergence of resistance during therapy is a theoretical concern with Serratia as an AmpC beta-lactamase-containing organism. While awaiting additional microbiology data, an empiric change to an AmpC beta-lactamase stable antibiotic such as a carbapenem should be made, especially since he has clinically deteriorated on therapy with a β-lactamase susceptible antibiotic, raising concerns of the emergence of resistance on initial therapy.

Antibiotics were changed to meropenem, vancomycin, and metronidazole given the clinical worsening and concerns that this represented infection unresponsive to prior antibiotics. The acute episode resolved spontaneously after one hour. His neurologic examination remained nonfocal. Chest radiography, urinalysis, urine culture, and right upper quadrant ultrasound were unremarkable. Transesophageal echocardiogram revealed no heart valve vegetations. MRI and bone scan of the lower extremities did not show any evidence of septic arthritis or other infection. He remained stable and was transferred out of the ICU the following day. Antibiotic coverage was switched to cefepime. On discussion with his significant other, this event was found to be similar to the intermittent confusion that occurred in the days prior to admission.

The acute onset and other features of these intermittent periods of deterioration are compatible with infection; intermittent seeding of the blood with microbes or their products (eg, lipopolysaccharides) from an abscess or vascular infection could explain these episodes. Some of the previous hypotheses to explain the episodes, such as a secondary infectious process, have not been supported by diagnostic testing or the clinical course. He needs close clinical monitoring and interval assessment of the known sites of infection.

Ten days after osteomyelitis and discitis were diagnosed, the patient developed worsening low back pain, prompting repeat spine MRI. This was significant for bilateral psoas abscess enlargement and extension of osteomyelitis and discitis (Figure 3). He was re-evaluated by Neurosurgery and Interventional Radiology and underwent psoas abscess drainage; abscess cultures grew S. marcescens.

 

 

He slowly improved over several weeks and was discharged to a subacute rehabilitation facility. He completed a 3.5-week course of intravenous antibiotics before leaving against medical advice. He completed eight weeks of oral trimethoprim-sulfamethoxazole and remains without long-term sequelae from the infection.

DISCUSSION

S. marcescens is a gram-negative rod in the Enterobacteriaceae family known for its red pigment. Primarily, S. marcescens causes nosocomial infections, most commonly of the respiratory and urinary tracts. However, a wide range of manifestations has been documented, including meningitis, ocular infections (conjunctivitis, keratitis, endophthalmitis), endocarditis, skin infections (cellulitis, necrotizing fasciitis), and osteomyelitis.1, 2 S. marcescens is often reported as the cause of outbreaks in ICUs;3-6 infection is thought to occur via contamination of water pipes, hospital equipment, and disinfectants.3, 7 Its natural environment includes soil, water, and GI tracts of animals,4 and there are published reports of S. marcescens infection in horses.8, 9 This patient was most likely exposed to S. marcescens through his work with horses and their environment.

S. marcescens has wide-ranging target organs, and successful treatment can be difficult. S. marcescens can infect the renal, respiratory, gastrointestinal, ocular, cardiovascular, and musculoskeletal systems. S. marcescens, like other “SPACE” organisms (Serratia, Pseudomonas, Acinetobacter, Citrobacter, Enterobacter), expresses inducible AmpC beta-lactamase.10 At baseline, AmpC beta-lactamase expression is repressed.11 Mutants with stably de-repressed (constitutively expressed) AmpC can be selected during therapy and lead to clinical failure, as has been best described during therapy for Enterobacter infections.12 Infectious Disease consultation may be helpful when caring for patients with S. marcescens bacteremia given these complexities.


This was an unusual case of S. marcescens infection. It most commonly infects immunocompromised hosts. Reported risk factors include solid organ or hematopoietic stem cell transplant, malignancy, HIV/AIDS, and receipt of immunosuppressive agents. The patient did not have these risk factors, but did have well-controlled type 2 diabetes mellitus. Although diabetes is associated with an increased risk of infection and more severe infections,13, 14 there is no evidence in the literature that well-controlled type 2 diabetes mellitus compromises the immune system. A few case reports document cutaneous S. marcescens infection in immunocompetent adults.15,16 A case report of S. marcescens septic arthritis and adjacent osteomyelitis has also been published, but the patient had poorly controlled diabetes.17 This case provides a report of systemic S. marcescens infection in an individual without clear risk factors.

S. marcescens osteomyelitis is rare, and there have been only a few prior case reports.2,18 The presentation of osteomyelitis, regardless of the causative organism, is subtle, often insidious, and can easily be missed. Hospitalists should have a high index of suspicion for the diagnosis as it requires prompt evaluation and treatment for complications, including epidural abscess. Risk factors include diabetes mellitus, rheumatoid arthritis, injection drug use, and other immunocompromising illnesses.19 Degenerative changes in the spine such as osteoarthritis may be risk factors as well,20 though not well studied or quantified. A hypothesized mechanism involves local inflammation and joint damage, leaving the area susceptible to bacterial seeding. Osteoarthritis and degenerative disc disease, along with exposure to racehorses, likely put this patient at risk for bacterial seeding in the vertebrae, ultimately leading to a “dark horse” diagnosis.

 

 

TEACHING POINTS

  • Serratia marcescens is a gram-negative rod bacterium that most commonly infects immunocompromised individuals in hospital settings. This report demonstrates that S. marcescens can cause serious infection in immunocompetent, nonhospitalized adults.
  • S. marcescens bacteremia or infection of organs outside of the urinary or respiratory systems is uncommon, and therapy can be complicated by emergence of resistance.
  • The clinical presentation of vertebral osteomyelitis and discitis and psoas abscess can be subtle and may present without typical signs and symptoms of infection.

ACKNOWLEDGEMENTS

The authors thank the patient and his partner for their willingness to have his story published, Laura Petersen, MHSA, for providing assistance with references and manuscript editing, and Shadi Azar, MBBS, for assistance in selecting the cross-sectional images.

Disclosures

The authors have no conflicts of interest to disclose.

References

1. Hejazi A, Falkiner FR. Serratia marcescens. J Med Microbiol. 1997;46(11):903-912. doi: 10.1099/00222615-46-11-903. PubMed
2. Lau JX, Li JY, Yong TY. Non-contiguous multifocal vertebral osteomyelitis caused by erratia marcescens. Mod Rheumatol. 2015;25(2):303-306. doi: 10.3109/14397595.2013.874754. PubMed
3. Dessi A, Puddu M, Testa M, Marcialis MA, Pintus MC, Fanos V. Serratia marcescens infections and outbreaks in neonatal intensive care units. J Chemother. 2009;21(5):493-499. doi: 10.1179/joc.2009.21.5.493. PubMed
4. Mahlen SD. Serratia infections: from military experiments to current practice. Clin Microbiol Rev. 2011;24(4):755-791. doi: 10.1128/CMR.00017-11. PubMed
5. Montagnani C, Cocchi P, Lega L, et al. Serratia marcescens outbreak in a neonatal intensive care unit: crucial role of implementing hand hygiene among external consultants. BMC Infect Dis. 2015;15:11. doi: 10.1186/s12879-014-0734-6. PubMed
6. van Ogtrop ML, van Zoeren-Grobben D, Verbakel-Salomons EM, van Boven CP. Serratia marcescens infections in neonatal departments: description of an outbreak and review of the literature. J Hosp Infect. 1997;36(2):95-103. doi: 10.1016/S0195-6701(97)90115-8. PubMed
7. Weber DJ, Rutala WA, Sickbert-Bennett EE. Outbreaks associated with contaminated antiseptics and disinfectants. Antimicrob Agents Chemother. 2007;51(12):4217-4224. doi: 10.1128/AAC.00138-07. PubMed
8. Ewart S, Brown C, Derksen F, Kufuor-Mensa E. Serratia marcescens endocarditis in a horse. J Am Vet Med Assoc. 1992;200(7):961-963. PubMed
9. Jores J, Beutner G, Hirth-Schmidt I, Borchers K, Pitt TL, Lubke-Becker A. Isolation of Serratia marcescens from an equine abortion in Germany. Vet Rec. 2004;154(8):242-244. doi: 10.1136/vr.154.8.242. PubMed
10. Herra C, Falkiner FR. Serratia marcescens. http://www.antimicrobe.org/b26.asp. Accessed August 22, 2017. 
11. Jacoby GA. AmpC beta-lactamases. Clin Microbiol Rev. 2009;22(1):161-182, Table of Contents. doi: 10.1128/CMR.00036-08. PubMed
12. Chow JW, Fine MJ, Shlaes DM, et al. Enterobacter bacteremia: clinical features and emergence of antibiotic resistance during therapy. Ann Intern Med. 1991;115(8):585-590. doi: 10.7326/0003-4819-115-8-585. PubMed
13. Goeijenbier M, van Sloten TT, Slobbe L, et al. Benefits of flu vaccination for persons with diabetes mellitus: A review. Vaccine. 2017;35(38):5095-5101. doi: 10.1016/j.vaccine.2017.07.095. PubMed
14. Gupta S, Koirala J, Khardori R, Khardori N. Infections in diabetes mellitus and hyperglycemia. Infect Dis Clin North Am. 2007;21(3):617-638, vii. doi: 10.1016/j.idc.2007.07.003. PubMed
15. Carlesimo M, Pennica A, Muscianese M, et al. Multiple skin ulcers due to Serratia marcescens in a immunocompetent patient. G Ital Dermatol Venereol. 2014;149(3):367-370. PubMed
16. Rallis E, Karanikola E, Papadakis P. Severe facial infection caused by Serratia marcescens in an immunocompetent soldier. J Am Acad Dermatol. 2008;58(5 Suppl 1):S109-S110. doi: 10.1016/j.jaad.2007.04.010. PubMed
17. Hadid H, Usman M, Thapa S. Severe osteomyelitis and septic arthritis due to Serratia marcescens in an immunocompetent patient. Case Rep Infect Dis. 2015;2015:347652. doi: 10.1155/2015/347652. PubMed
18. Berbari EF, Kanj SS, Kowalski TJ, et al. 2015 Infectious Diseases Society of America (IDSA) Clinical Practice Guidelines for the Diagnosis and Treatment of Native Vertebral Osteomyelitis in Adults. Clin Infect Dis. 2015;61(6):e26-e46. doi: 10.1093/cid/civ482. PubMed
19. Vertebral Osteomyelitis Guideline Team (Team Leader: Chenoweth CE; Team Members: Bassin BS HS, Mack MR, Kunapuli A, Park P, Quint DJ, Seagull FJ, Wesorick DH; Consultants: Patel RD, Riddell IV J, Lanava KM). Vertebral Osteomyelitis, Discitis, and Spinal Epidural Abscess in Adults. University of Michigan Guidelines for Clinical Care 2013; http://www.med.umich.edu/1info/FHP/practiceguides/vertebral/VO.pdf. Accessed October 26, 2017. 
20. McDonald M. Vertebral osteomyelitis and discitis in adults. 2017; Available at: https://www.uptodate.com/contents/vertebral-osteomyelitis-and-discitis-in-adults. Accessed October 26, 2017. 

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790-794. Published online first September 26, 2018
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A 73-year-old man presented to the emergency department in late winter with fevers, myalgias, fatigue, low back pain, and poor oral intake. Four days earlier, he had fallen and hit his head. His partner also noticed a few episodes of confusion in the days leading up to presentation.

 

The patient’s symptoms are nonspecific. Fevers prompt the consideration of systemic infection, though fevers can also be seen in a broad range of noninfectious processes, including malignancy, vasculitis, autoimmune conditions, endocrinopathies, and drug reaction. The clinical picture warrants prompt and comprehensive evaluation, beginning with further detailed history (current illnesses, exposures, travel, vaccinations, medications, cancer screenings, weight change) and a careful physical examination, which will help guide laboratory testing and imaging.

His past medical history was notable for coronary artery disease for which he underwent coronary artery bypass grafting five years prior, hypertension, hyperlipidemia, diet-controlled type 2 diabetes mellitus, gastroesophageal reflux disease, osteoarthritis leading to chronic knee and hand pain, and a history of mildly low testosterone levels. His medications included hydrocodone and acetaminophen, metoprolol tartrate, omeprazole, topical testosterone gel (prescribed for daily use, used intermittently), and aspirin. He was retired and lived in rural Michigan with his female partner. He previously worked as a truck driver and used to train racehorses. He had quit smoking five years earlier. He denied alcohol or injection drug use.

 

The patient has significant underlying medical conditions. Considering infectious causes of his symptoms, it is notable that he has no reported immunodeficiency. It would be relevant to know if he has been tested for HIV. His rural residence and work with horses raise the possibility of zoonotic infections, including plague (Yersinia pestis), brucellosis (Brucella species), Q fever (Coxiella burnetti), Rhodococcus equi, or group C or G Streptococci. Information about tuberculosis risk factors, other geographic exposures, recent dental work, and ill contacts might be helpful to elucidate the causes of this nonspecific febrile illness with a possible CNS component. With regard to malignancy, it would be helpful to ask about recent weight loss, lymphadenopathy, and prior cancer screenings. Considering other etiologies, he does not report a history of autoimmune or endocrine conditions. However, it is important to consider a vasculitis, such as giant cell arteritis or polyarteritis nodosa, autoimmune conditions, and endocrinopathies such as thyrotoxicosis. The differential diagnosis for his clinical syndrome remains broad.

Vital signs were temperature 37.3°C, heart rate 88 beats per minute, respiratory rate 18 breaths per minute, blood pressure 105/64 mmHg, and oxygen saturation 93% on room air. Oral examination revealed poor dentition. The heart had a normal rate and regular rhythm with no murmurs, rubs, or gallops, and lungs were clear to auscultation bilaterally. The abdomen was unremarkable. Examination of the back was notable for mild tenderness to palpation over the sacrum. He was oriented to person, place, and time, with intact cranial nerves and a nonfocal neurologic examination. The remainder of his examination was normal. The white blood cell (WBC) count was 11.1 × 103/μL, with 84% neutrophils and 9% bands, hemoglobin 13.6 g/dL, platelet count 54 × 103/μL, sodium 122 mmol/L, potassium 3.3 mmol/L, chloride 89 mmol/L, bicarbonate 21 mmol/L, creatinine 1.64 mg/dL, albumin 2.7 g/dL, alkaline phosphatase 136 U/L, AST 60 U/L, ALT 37 U/L, and total bilirubin 2.1 mg/dL.

 

 

He had presented to the emergency department five days earlier with fever, flank pain, nausea, vomiting, and weakness. At that time, he had a temperature of 38.2°C, but vital signs otherwise had been normal. Laboratory studies had revealed WBC count 14.0 × 103/μL, hemoglobin 13.7 g/dL, platelet count 175 × 103/μL, sodium 129 mmol/L, chloride 97 mmol/dL, bicarbonate 23 mmol/L, creatinine 1.1 mg/dL, and total bilirubin 1.6 mg/dL. Urinalysis had been negative. He had received one liter of intravenous normal saline and ketorolac for pain and had been discharged with the diagnosis of a viral illness.

A picture of a progressive, subacute illness with multisystem involvement appears to be emerging, and there are several abnormalities consistent with infection, including fever, leukocytosis with bandemia, thrombocytopenia, renal dysfunction, and elevated bilirubin. His borderline hypotension may be due to uninterrupted use of his antihypertensive medication in the setting of poor oral intake or may indicate incipient sepsis. Focal sacral tenderness raises the possibility of vertebral osteomyelitis or epidural abscess, either from a contiguous focus of infection from the surrounding structures, or as a site of seeding from bacteremia. His prior confusion episodes might have been secondary to a systemic process; however, CNS imaging should be done, given the history of confusion and recent fall. Further diagnostic studies are warranted, including: blood cultures; peripheral blood smear; imaging of the spine, chest, abdomen, and pelvis; electrocardiogram; and possibly echocardiogram. Although noninfectious etiologies should not be discounted, the constellation of findings is more compatible with infection.

Two sets of blood cultures and a viral respiratory swab were obtained. Computed tomography (CT) of the head without contrast was negative for acute bleeding or other intracranial pathology. Lumbosacral radiography revealed degenerative changes with intact alignment of the sacrum. The patient was admitted with plans to pursue lumbar puncture if altered mental status recurred. The viral swab was negative. Within 24 hours, one set of blood cultures (both bottles) grew lactose-negative, oxidase-negative, gram-negative rods.

Gram-negative rods (GNRs) rarely are contaminants in blood cultures and should be considered significant until proven otherwise. Prompt empiric therapy and investigation to identify the primary source of bacteremia must be initiated. Although the most common GNRs isolated from blood cultures are enteric coliform organisms such as E. coli, Klebsiella, and Enterobacter, these typically are lactose-positive. Additional possibilities should be considered, including Salmonella species or other organisms comprising the “HACEK” group. This latter group is commonly associated with endocarditis, but the majority are oxidase-positive and have more fastidious growth requirements. Although there are other gram-negative organisms to consider, they have other distinguishing characteristics that have not been indicated in the microbiology results. Broad-spectrum antibiotic therapy is appropriate while awaiting the final identification of the GNR. A thorough search for a primary source and secondary sites of hematogenous seeding should be conducted. His only localizing symptom was tenderness over the sacrum, and this should be further assessed by sensitive imaging such as magnetic resonance imaging (MRI). The identity of the GNR would guide further diagnostic evaluation. For example, a respiratory organism such as Haemophilus influenzae would prompt a CT scan of the chest. Isolation of an enteric or a coliform GNR such as E. coli would prompt abdominal and pelvic imaging to assess for occult abscess. An “HACEK” group organism would prompt echocardiography to evaluate for endocarditis.

He was started on piperacillin–tazobactam. GNR bacteremia without a clear source prompted a CT of the chest, abdomen, and pelvis with and without contrast. The images were unremarkable, with the exception of a signal abnormality in the left psoas muscle concerning for abscess (Figure 1). MRI of the same region revealed L2-4 osteomyelitis and discitis with bilateral psoas abscesses but without epidural abscess (Figure 2).



Psoas abscess is an uncommon entity that is difficult to diagnose clinically. Differentiation of primary and secondary psoas abscesses can be helpful because of the differences in microbiology, pathogenesis, presentation, and management. Primary abscess refers to hematogenous seeding of the psoas and associated muscles from a distant site of infection through bacteremia. This is typically monomicrobial, most commonly due to Staphylococcus aureus, although psoas abscess due to GNRs, Mycobacterium tuberculosis, Brucella species, Burkholderia pseudomallei, or other organisms has also been described. Secondary abscess refers to the spread of infection from a contiguous source such as bowel, kidney, hip joint, or vascular structure. In this patient’s case, it is uncertain whether hematogenous seeding of the spine and the psoas muscle occurred concurrently or whether one site was initially seeded, followed by contiguous spread to the adjacent structures.

 

 

Because of increasing reports of antibiotic resistance in GNRs, even in community-acquired infections, it is appropriate to initially treat with a broad-spectrum antibiotic such as a fourth-generation cephalosporin or carbapenem while awaiting identification and susceptibility results to guide definitive therapy. In addition to antimicrobial therapy, treatment of psoas abscess usually requires drainage. Vertebral osteomyelitis from a hematogenous source can often be treated with antibiotics alone, as long as there are no associated complications such as epidural abscess and spine instability. Imaging should be reviewed for pathology of the surrounding structures, and surgical consultation should be obtained.

Neurosurgery, Interventional Radiology, and Infectious Disease services were consulted. Antibiotic coverage was expanded to vancomycin, cefepime, and metronidazole due to the possibility of polymicrobial infection. No surgical intervention was recommended since the abscesses were too small to drain.

The next day, the GNR was identified as Serratia marcescens.

S. marcescens is a widely distributed organism in the environment, but not a common component of endogenous human flora. Serratia is generally considered as an opportunistic nosocomial pathogen. Community-acquired infection with this organism is unusual and implies exogenous acquisition. A careful re-evaluation of exposures, including injection drug use or other parenteral exposures is important to identify the likely source of infection, as these have been previously linked to outbreaks of environmental organisms. Based on the presumed pathogenesis of infection and the initial microbiology suggesting monomicrobial Serratia infection, antibiotics should be narrowed based on the susceptibility results. There is concern that antibiotics might not adequately penetrate the abscesses and result in a lack of clinical improvement and/or lead to the emergence of antibiotic resistance during therapy. This is an important concern with Serratia, which typically harbors an AmpC beta-lactamase that can mediate resistance to broad-spectrum cephalosporins. If medical therapy alone without drainage is planned, short-interval re-imaging is warranted.

Blood cultures from days two and three of hospitalization also grew S. marcescens. No other organisms grew. Based on culture sensitivity data, antibiotics were narrowed to ceftriaxone.

This surprising culture result prompted the medical team to obtain screening laboratory tests for immunocompromising conditions and to revisit the patient’s history. His type 2 diabetes mellitus was well controlled with a hemoglobin A1c of 6.5%. HIV testing was negative. Further questioning of the patient revealed that he had fallen from a truck onto rocks four months prior, injuring his back and hip, but without puncture of the skin or loss of consciousness; he denied recent falls or other injuries but reported significant chronic knee pain. He had not been hospitalized recently. He had never taken corticosteroids or immunomodulatory medications. He continued to deny injection drug use. He did, however, clarify that his work with racehorses, which was originally understood to be a prior hobby, was ongoing, including recent work of cleaning the stables.

The following morning, he experienced confusion, rigors, and hypoxia, which prompted transfer to the intensive care unit (ICU).

Acute worsening during treatment is worrisome, and could be a potential complication of his infection or treatment – or even a separate process altogether. Knee pain in the setting of bacteremia raises the possibility of septic or crystal-induced arthritis and warrants imaging. Confusion and hypoxia might represent secondary sites of seeding from bacteremia (CNS infection and pneumonia, respectively) or manifestations of endocarditis, the latter being unusual for Serratia. An echocardiogram should be obtained. Other neurologic causes, including seizure, should also be considered. Further evaluation by chest imaging and repeat neurologic examination and imaging should be performed. Emergence of resistance during therapy is a theoretical concern with Serratia as an AmpC beta-lactamase-containing organism. While awaiting additional microbiology data, an empiric change to an AmpC beta-lactamase stable antibiotic such as a carbapenem should be made, especially since he has clinically deteriorated on therapy with a β-lactamase susceptible antibiotic, raising concerns of the emergence of resistance on initial therapy.

Antibiotics were changed to meropenem, vancomycin, and metronidazole given the clinical worsening and concerns that this represented infection unresponsive to prior antibiotics. The acute episode resolved spontaneously after one hour. His neurologic examination remained nonfocal. Chest radiography, urinalysis, urine culture, and right upper quadrant ultrasound were unremarkable. Transesophageal echocardiogram revealed no heart valve vegetations. MRI and bone scan of the lower extremities did not show any evidence of septic arthritis or other infection. He remained stable and was transferred out of the ICU the following day. Antibiotic coverage was switched to cefepime. On discussion with his significant other, this event was found to be similar to the intermittent confusion that occurred in the days prior to admission.

The acute onset and other features of these intermittent periods of deterioration are compatible with infection; intermittent seeding of the blood with microbes or their products (eg, lipopolysaccharides) from an abscess or vascular infection could explain these episodes. Some of the previous hypotheses to explain the episodes, such as a secondary infectious process, have not been supported by diagnostic testing or the clinical course. He needs close clinical monitoring and interval assessment of the known sites of infection.

Ten days after osteomyelitis and discitis were diagnosed, the patient developed worsening low back pain, prompting repeat spine MRI. This was significant for bilateral psoas abscess enlargement and extension of osteomyelitis and discitis (Figure 3). He was re-evaluated by Neurosurgery and Interventional Radiology and underwent psoas abscess drainage; abscess cultures grew S. marcescens.

 

 

He slowly improved over several weeks and was discharged to a subacute rehabilitation facility. He completed a 3.5-week course of intravenous antibiotics before leaving against medical advice. He completed eight weeks of oral trimethoprim-sulfamethoxazole and remains without long-term sequelae from the infection.

DISCUSSION

S. marcescens is a gram-negative rod in the Enterobacteriaceae family known for its red pigment. Primarily, S. marcescens causes nosocomial infections, most commonly of the respiratory and urinary tracts. However, a wide range of manifestations has been documented, including meningitis, ocular infections (conjunctivitis, keratitis, endophthalmitis), endocarditis, skin infections (cellulitis, necrotizing fasciitis), and osteomyelitis.1, 2 S. marcescens is often reported as the cause of outbreaks in ICUs;3-6 infection is thought to occur via contamination of water pipes, hospital equipment, and disinfectants.3, 7 Its natural environment includes soil, water, and GI tracts of animals,4 and there are published reports of S. marcescens infection in horses.8, 9 This patient was most likely exposed to S. marcescens through his work with horses and their environment.

S. marcescens has wide-ranging target organs, and successful treatment can be difficult. S. marcescens can infect the renal, respiratory, gastrointestinal, ocular, cardiovascular, and musculoskeletal systems. S. marcescens, like other “SPACE” organisms (Serratia, Pseudomonas, Acinetobacter, Citrobacter, Enterobacter), expresses inducible AmpC beta-lactamase.10 At baseline, AmpC beta-lactamase expression is repressed.11 Mutants with stably de-repressed (constitutively expressed) AmpC can be selected during therapy and lead to clinical failure, as has been best described during therapy for Enterobacter infections.12 Infectious Disease consultation may be helpful when caring for patients with S. marcescens bacteremia given these complexities.


This was an unusual case of S. marcescens infection. It most commonly infects immunocompromised hosts. Reported risk factors include solid organ or hematopoietic stem cell transplant, malignancy, HIV/AIDS, and receipt of immunosuppressive agents. The patient did not have these risk factors, but did have well-controlled type 2 diabetes mellitus. Although diabetes is associated with an increased risk of infection and more severe infections,13, 14 there is no evidence in the literature that well-controlled type 2 diabetes mellitus compromises the immune system. A few case reports document cutaneous S. marcescens infection in immunocompetent adults.15,16 A case report of S. marcescens septic arthritis and adjacent osteomyelitis has also been published, but the patient had poorly controlled diabetes.17 This case provides a report of systemic S. marcescens infection in an individual without clear risk factors.

S. marcescens osteomyelitis is rare, and there have been only a few prior case reports.2,18 The presentation of osteomyelitis, regardless of the causative organism, is subtle, often insidious, and can easily be missed. Hospitalists should have a high index of suspicion for the diagnosis as it requires prompt evaluation and treatment for complications, including epidural abscess. Risk factors include diabetes mellitus, rheumatoid arthritis, injection drug use, and other immunocompromising illnesses.19 Degenerative changes in the spine such as osteoarthritis may be risk factors as well,20 though not well studied or quantified. A hypothesized mechanism involves local inflammation and joint damage, leaving the area susceptible to bacterial seeding. Osteoarthritis and degenerative disc disease, along with exposure to racehorses, likely put this patient at risk for bacterial seeding in the vertebrae, ultimately leading to a “dark horse” diagnosis.

 

 

TEACHING POINTS

  • Serratia marcescens is a gram-negative rod bacterium that most commonly infects immunocompromised individuals in hospital settings. This report demonstrates that S. marcescens can cause serious infection in immunocompetent, nonhospitalized adults.
  • S. marcescens bacteremia or infection of organs outside of the urinary or respiratory systems is uncommon, and therapy can be complicated by emergence of resistance.
  • The clinical presentation of vertebral osteomyelitis and discitis and psoas abscess can be subtle and may present without typical signs and symptoms of infection.

ACKNOWLEDGEMENTS

The authors thank the patient and his partner for their willingness to have his story published, Laura Petersen, MHSA, for providing assistance with references and manuscript editing, and Shadi Azar, MBBS, for assistance in selecting the cross-sectional images.

Disclosures

The authors have no conflicts of interest to disclose.

A 73-year-old man presented to the emergency department in late winter with fevers, myalgias, fatigue, low back pain, and poor oral intake. Four days earlier, he had fallen and hit his head. His partner also noticed a few episodes of confusion in the days leading up to presentation.

 

The patient’s symptoms are nonspecific. Fevers prompt the consideration of systemic infection, though fevers can also be seen in a broad range of noninfectious processes, including malignancy, vasculitis, autoimmune conditions, endocrinopathies, and drug reaction. The clinical picture warrants prompt and comprehensive evaluation, beginning with further detailed history (current illnesses, exposures, travel, vaccinations, medications, cancer screenings, weight change) and a careful physical examination, which will help guide laboratory testing and imaging.

His past medical history was notable for coronary artery disease for which he underwent coronary artery bypass grafting five years prior, hypertension, hyperlipidemia, diet-controlled type 2 diabetes mellitus, gastroesophageal reflux disease, osteoarthritis leading to chronic knee and hand pain, and a history of mildly low testosterone levels. His medications included hydrocodone and acetaminophen, metoprolol tartrate, omeprazole, topical testosterone gel (prescribed for daily use, used intermittently), and aspirin. He was retired and lived in rural Michigan with his female partner. He previously worked as a truck driver and used to train racehorses. He had quit smoking five years earlier. He denied alcohol or injection drug use.

 

The patient has significant underlying medical conditions. Considering infectious causes of his symptoms, it is notable that he has no reported immunodeficiency. It would be relevant to know if he has been tested for HIV. His rural residence and work with horses raise the possibility of zoonotic infections, including plague (Yersinia pestis), brucellosis (Brucella species), Q fever (Coxiella burnetti), Rhodococcus equi, or group C or G Streptococci. Information about tuberculosis risk factors, other geographic exposures, recent dental work, and ill contacts might be helpful to elucidate the causes of this nonspecific febrile illness with a possible CNS component. With regard to malignancy, it would be helpful to ask about recent weight loss, lymphadenopathy, and prior cancer screenings. Considering other etiologies, he does not report a history of autoimmune or endocrine conditions. However, it is important to consider a vasculitis, such as giant cell arteritis or polyarteritis nodosa, autoimmune conditions, and endocrinopathies such as thyrotoxicosis. The differential diagnosis for his clinical syndrome remains broad.

Vital signs were temperature 37.3°C, heart rate 88 beats per minute, respiratory rate 18 breaths per minute, blood pressure 105/64 mmHg, and oxygen saturation 93% on room air. Oral examination revealed poor dentition. The heart had a normal rate and regular rhythm with no murmurs, rubs, or gallops, and lungs were clear to auscultation bilaterally. The abdomen was unremarkable. Examination of the back was notable for mild tenderness to palpation over the sacrum. He was oriented to person, place, and time, with intact cranial nerves and a nonfocal neurologic examination. The remainder of his examination was normal. The white blood cell (WBC) count was 11.1 × 103/μL, with 84% neutrophils and 9% bands, hemoglobin 13.6 g/dL, platelet count 54 × 103/μL, sodium 122 mmol/L, potassium 3.3 mmol/L, chloride 89 mmol/L, bicarbonate 21 mmol/L, creatinine 1.64 mg/dL, albumin 2.7 g/dL, alkaline phosphatase 136 U/L, AST 60 U/L, ALT 37 U/L, and total bilirubin 2.1 mg/dL.

 

 

He had presented to the emergency department five days earlier with fever, flank pain, nausea, vomiting, and weakness. At that time, he had a temperature of 38.2°C, but vital signs otherwise had been normal. Laboratory studies had revealed WBC count 14.0 × 103/μL, hemoglobin 13.7 g/dL, platelet count 175 × 103/μL, sodium 129 mmol/L, chloride 97 mmol/dL, bicarbonate 23 mmol/L, creatinine 1.1 mg/dL, and total bilirubin 1.6 mg/dL. Urinalysis had been negative. He had received one liter of intravenous normal saline and ketorolac for pain and had been discharged with the diagnosis of a viral illness.

A picture of a progressive, subacute illness with multisystem involvement appears to be emerging, and there are several abnormalities consistent with infection, including fever, leukocytosis with bandemia, thrombocytopenia, renal dysfunction, and elevated bilirubin. His borderline hypotension may be due to uninterrupted use of his antihypertensive medication in the setting of poor oral intake or may indicate incipient sepsis. Focal sacral tenderness raises the possibility of vertebral osteomyelitis or epidural abscess, either from a contiguous focus of infection from the surrounding structures, or as a site of seeding from bacteremia. His prior confusion episodes might have been secondary to a systemic process; however, CNS imaging should be done, given the history of confusion and recent fall. Further diagnostic studies are warranted, including: blood cultures; peripheral blood smear; imaging of the spine, chest, abdomen, and pelvis; electrocardiogram; and possibly echocardiogram. Although noninfectious etiologies should not be discounted, the constellation of findings is more compatible with infection.

Two sets of blood cultures and a viral respiratory swab were obtained. Computed tomography (CT) of the head without contrast was negative for acute bleeding or other intracranial pathology. Lumbosacral radiography revealed degenerative changes with intact alignment of the sacrum. The patient was admitted with plans to pursue lumbar puncture if altered mental status recurred. The viral swab was negative. Within 24 hours, one set of blood cultures (both bottles) grew lactose-negative, oxidase-negative, gram-negative rods.

Gram-negative rods (GNRs) rarely are contaminants in blood cultures and should be considered significant until proven otherwise. Prompt empiric therapy and investigation to identify the primary source of bacteremia must be initiated. Although the most common GNRs isolated from blood cultures are enteric coliform organisms such as E. coli, Klebsiella, and Enterobacter, these typically are lactose-positive. Additional possibilities should be considered, including Salmonella species or other organisms comprising the “HACEK” group. This latter group is commonly associated with endocarditis, but the majority are oxidase-positive and have more fastidious growth requirements. Although there are other gram-negative organisms to consider, they have other distinguishing characteristics that have not been indicated in the microbiology results. Broad-spectrum antibiotic therapy is appropriate while awaiting the final identification of the GNR. A thorough search for a primary source and secondary sites of hematogenous seeding should be conducted. His only localizing symptom was tenderness over the sacrum, and this should be further assessed by sensitive imaging such as magnetic resonance imaging (MRI). The identity of the GNR would guide further diagnostic evaluation. For example, a respiratory organism such as Haemophilus influenzae would prompt a CT scan of the chest. Isolation of an enteric or a coliform GNR such as E. coli would prompt abdominal and pelvic imaging to assess for occult abscess. An “HACEK” group organism would prompt echocardiography to evaluate for endocarditis.

He was started on piperacillin–tazobactam. GNR bacteremia without a clear source prompted a CT of the chest, abdomen, and pelvis with and without contrast. The images were unremarkable, with the exception of a signal abnormality in the left psoas muscle concerning for abscess (Figure 1). MRI of the same region revealed L2-4 osteomyelitis and discitis with bilateral psoas abscesses but without epidural abscess (Figure 2).



Psoas abscess is an uncommon entity that is difficult to diagnose clinically. Differentiation of primary and secondary psoas abscesses can be helpful because of the differences in microbiology, pathogenesis, presentation, and management. Primary abscess refers to hematogenous seeding of the psoas and associated muscles from a distant site of infection through bacteremia. This is typically monomicrobial, most commonly due to Staphylococcus aureus, although psoas abscess due to GNRs, Mycobacterium tuberculosis, Brucella species, Burkholderia pseudomallei, or other organisms has also been described. Secondary abscess refers to the spread of infection from a contiguous source such as bowel, kidney, hip joint, or vascular structure. In this patient’s case, it is uncertain whether hematogenous seeding of the spine and the psoas muscle occurred concurrently or whether one site was initially seeded, followed by contiguous spread to the adjacent structures.

 

 

Because of increasing reports of antibiotic resistance in GNRs, even in community-acquired infections, it is appropriate to initially treat with a broad-spectrum antibiotic such as a fourth-generation cephalosporin or carbapenem while awaiting identification and susceptibility results to guide definitive therapy. In addition to antimicrobial therapy, treatment of psoas abscess usually requires drainage. Vertebral osteomyelitis from a hematogenous source can often be treated with antibiotics alone, as long as there are no associated complications such as epidural abscess and spine instability. Imaging should be reviewed for pathology of the surrounding structures, and surgical consultation should be obtained.

Neurosurgery, Interventional Radiology, and Infectious Disease services were consulted. Antibiotic coverage was expanded to vancomycin, cefepime, and metronidazole due to the possibility of polymicrobial infection. No surgical intervention was recommended since the abscesses were too small to drain.

The next day, the GNR was identified as Serratia marcescens.

S. marcescens is a widely distributed organism in the environment, but not a common component of endogenous human flora. Serratia is generally considered as an opportunistic nosocomial pathogen. Community-acquired infection with this organism is unusual and implies exogenous acquisition. A careful re-evaluation of exposures, including injection drug use or other parenteral exposures is important to identify the likely source of infection, as these have been previously linked to outbreaks of environmental organisms. Based on the presumed pathogenesis of infection and the initial microbiology suggesting monomicrobial Serratia infection, antibiotics should be narrowed based on the susceptibility results. There is concern that antibiotics might not adequately penetrate the abscesses and result in a lack of clinical improvement and/or lead to the emergence of antibiotic resistance during therapy. This is an important concern with Serratia, which typically harbors an AmpC beta-lactamase that can mediate resistance to broad-spectrum cephalosporins. If medical therapy alone without drainage is planned, short-interval re-imaging is warranted.

Blood cultures from days two and three of hospitalization also grew S. marcescens. No other organisms grew. Based on culture sensitivity data, antibiotics were narrowed to ceftriaxone.

This surprising culture result prompted the medical team to obtain screening laboratory tests for immunocompromising conditions and to revisit the patient’s history. His type 2 diabetes mellitus was well controlled with a hemoglobin A1c of 6.5%. HIV testing was negative. Further questioning of the patient revealed that he had fallen from a truck onto rocks four months prior, injuring his back and hip, but without puncture of the skin or loss of consciousness; he denied recent falls or other injuries but reported significant chronic knee pain. He had not been hospitalized recently. He had never taken corticosteroids or immunomodulatory medications. He continued to deny injection drug use. He did, however, clarify that his work with racehorses, which was originally understood to be a prior hobby, was ongoing, including recent work of cleaning the stables.

The following morning, he experienced confusion, rigors, and hypoxia, which prompted transfer to the intensive care unit (ICU).

Acute worsening during treatment is worrisome, and could be a potential complication of his infection or treatment – or even a separate process altogether. Knee pain in the setting of bacteremia raises the possibility of septic or crystal-induced arthritis and warrants imaging. Confusion and hypoxia might represent secondary sites of seeding from bacteremia (CNS infection and pneumonia, respectively) or manifestations of endocarditis, the latter being unusual for Serratia. An echocardiogram should be obtained. Other neurologic causes, including seizure, should also be considered. Further evaluation by chest imaging and repeat neurologic examination and imaging should be performed. Emergence of resistance during therapy is a theoretical concern with Serratia as an AmpC beta-lactamase-containing organism. While awaiting additional microbiology data, an empiric change to an AmpC beta-lactamase stable antibiotic such as a carbapenem should be made, especially since he has clinically deteriorated on therapy with a β-lactamase susceptible antibiotic, raising concerns of the emergence of resistance on initial therapy.

Antibiotics were changed to meropenem, vancomycin, and metronidazole given the clinical worsening and concerns that this represented infection unresponsive to prior antibiotics. The acute episode resolved spontaneously after one hour. His neurologic examination remained nonfocal. Chest radiography, urinalysis, urine culture, and right upper quadrant ultrasound were unremarkable. Transesophageal echocardiogram revealed no heart valve vegetations. MRI and bone scan of the lower extremities did not show any evidence of septic arthritis or other infection. He remained stable and was transferred out of the ICU the following day. Antibiotic coverage was switched to cefepime. On discussion with his significant other, this event was found to be similar to the intermittent confusion that occurred in the days prior to admission.

The acute onset and other features of these intermittent periods of deterioration are compatible with infection; intermittent seeding of the blood with microbes or their products (eg, lipopolysaccharides) from an abscess or vascular infection could explain these episodes. Some of the previous hypotheses to explain the episodes, such as a secondary infectious process, have not been supported by diagnostic testing or the clinical course. He needs close clinical monitoring and interval assessment of the known sites of infection.

Ten days after osteomyelitis and discitis were diagnosed, the patient developed worsening low back pain, prompting repeat spine MRI. This was significant for bilateral psoas abscess enlargement and extension of osteomyelitis and discitis (Figure 3). He was re-evaluated by Neurosurgery and Interventional Radiology and underwent psoas abscess drainage; abscess cultures grew S. marcescens.

 

 

He slowly improved over several weeks and was discharged to a subacute rehabilitation facility. He completed a 3.5-week course of intravenous antibiotics before leaving against medical advice. He completed eight weeks of oral trimethoprim-sulfamethoxazole and remains without long-term sequelae from the infection.

DISCUSSION

S. marcescens is a gram-negative rod in the Enterobacteriaceae family known for its red pigment. Primarily, S. marcescens causes nosocomial infections, most commonly of the respiratory and urinary tracts. However, a wide range of manifestations has been documented, including meningitis, ocular infections (conjunctivitis, keratitis, endophthalmitis), endocarditis, skin infections (cellulitis, necrotizing fasciitis), and osteomyelitis.1, 2 S. marcescens is often reported as the cause of outbreaks in ICUs;3-6 infection is thought to occur via contamination of water pipes, hospital equipment, and disinfectants.3, 7 Its natural environment includes soil, water, and GI tracts of animals,4 and there are published reports of S. marcescens infection in horses.8, 9 This patient was most likely exposed to S. marcescens through his work with horses and their environment.

S. marcescens has wide-ranging target organs, and successful treatment can be difficult. S. marcescens can infect the renal, respiratory, gastrointestinal, ocular, cardiovascular, and musculoskeletal systems. S. marcescens, like other “SPACE” organisms (Serratia, Pseudomonas, Acinetobacter, Citrobacter, Enterobacter), expresses inducible AmpC beta-lactamase.10 At baseline, AmpC beta-lactamase expression is repressed.11 Mutants with stably de-repressed (constitutively expressed) AmpC can be selected during therapy and lead to clinical failure, as has been best described during therapy for Enterobacter infections.12 Infectious Disease consultation may be helpful when caring for patients with S. marcescens bacteremia given these complexities.


This was an unusual case of S. marcescens infection. It most commonly infects immunocompromised hosts. Reported risk factors include solid organ or hematopoietic stem cell transplant, malignancy, HIV/AIDS, and receipt of immunosuppressive agents. The patient did not have these risk factors, but did have well-controlled type 2 diabetes mellitus. Although diabetes is associated with an increased risk of infection and more severe infections,13, 14 there is no evidence in the literature that well-controlled type 2 diabetes mellitus compromises the immune system. A few case reports document cutaneous S. marcescens infection in immunocompetent adults.15,16 A case report of S. marcescens septic arthritis and adjacent osteomyelitis has also been published, but the patient had poorly controlled diabetes.17 This case provides a report of systemic S. marcescens infection in an individual without clear risk factors.

S. marcescens osteomyelitis is rare, and there have been only a few prior case reports.2,18 The presentation of osteomyelitis, regardless of the causative organism, is subtle, often insidious, and can easily be missed. Hospitalists should have a high index of suspicion for the diagnosis as it requires prompt evaluation and treatment for complications, including epidural abscess. Risk factors include diabetes mellitus, rheumatoid arthritis, injection drug use, and other immunocompromising illnesses.19 Degenerative changes in the spine such as osteoarthritis may be risk factors as well,20 though not well studied or quantified. A hypothesized mechanism involves local inflammation and joint damage, leaving the area susceptible to bacterial seeding. Osteoarthritis and degenerative disc disease, along with exposure to racehorses, likely put this patient at risk for bacterial seeding in the vertebrae, ultimately leading to a “dark horse” diagnosis.

 

 

TEACHING POINTS

  • Serratia marcescens is a gram-negative rod bacterium that most commonly infects immunocompromised individuals in hospital settings. This report demonstrates that S. marcescens can cause serious infection in immunocompetent, nonhospitalized adults.
  • S. marcescens bacteremia or infection of organs outside of the urinary or respiratory systems is uncommon, and therapy can be complicated by emergence of resistance.
  • The clinical presentation of vertebral osteomyelitis and discitis and psoas abscess can be subtle and may present without typical signs and symptoms of infection.

ACKNOWLEDGEMENTS

The authors thank the patient and his partner for their willingness to have his story published, Laura Petersen, MHSA, for providing assistance with references and manuscript editing, and Shadi Azar, MBBS, for assistance in selecting the cross-sectional images.

Disclosures

The authors have no conflicts of interest to disclose.

References

1. Hejazi A, Falkiner FR. Serratia marcescens. J Med Microbiol. 1997;46(11):903-912. doi: 10.1099/00222615-46-11-903. PubMed
2. Lau JX, Li JY, Yong TY. Non-contiguous multifocal vertebral osteomyelitis caused by erratia marcescens. Mod Rheumatol. 2015;25(2):303-306. doi: 10.3109/14397595.2013.874754. PubMed
3. Dessi A, Puddu M, Testa M, Marcialis MA, Pintus MC, Fanos V. Serratia marcescens infections and outbreaks in neonatal intensive care units. J Chemother. 2009;21(5):493-499. doi: 10.1179/joc.2009.21.5.493. PubMed
4. Mahlen SD. Serratia infections: from military experiments to current practice. Clin Microbiol Rev. 2011;24(4):755-791. doi: 10.1128/CMR.00017-11. PubMed
5. Montagnani C, Cocchi P, Lega L, et al. Serratia marcescens outbreak in a neonatal intensive care unit: crucial role of implementing hand hygiene among external consultants. BMC Infect Dis. 2015;15:11. doi: 10.1186/s12879-014-0734-6. PubMed
6. van Ogtrop ML, van Zoeren-Grobben D, Verbakel-Salomons EM, van Boven CP. Serratia marcescens infections in neonatal departments: description of an outbreak and review of the literature. J Hosp Infect. 1997;36(2):95-103. doi: 10.1016/S0195-6701(97)90115-8. PubMed
7. Weber DJ, Rutala WA, Sickbert-Bennett EE. Outbreaks associated with contaminated antiseptics and disinfectants. Antimicrob Agents Chemother. 2007;51(12):4217-4224. doi: 10.1128/AAC.00138-07. PubMed
8. Ewart S, Brown C, Derksen F, Kufuor-Mensa E. Serratia marcescens endocarditis in a horse. J Am Vet Med Assoc. 1992;200(7):961-963. PubMed
9. Jores J, Beutner G, Hirth-Schmidt I, Borchers K, Pitt TL, Lubke-Becker A. Isolation of Serratia marcescens from an equine abortion in Germany. Vet Rec. 2004;154(8):242-244. doi: 10.1136/vr.154.8.242. PubMed
10. Herra C, Falkiner FR. Serratia marcescens. http://www.antimicrobe.org/b26.asp. Accessed August 22, 2017. 
11. Jacoby GA. AmpC beta-lactamases. Clin Microbiol Rev. 2009;22(1):161-182, Table of Contents. doi: 10.1128/CMR.00036-08. PubMed
12. Chow JW, Fine MJ, Shlaes DM, et al. Enterobacter bacteremia: clinical features and emergence of antibiotic resistance during therapy. Ann Intern Med. 1991;115(8):585-590. doi: 10.7326/0003-4819-115-8-585. PubMed
13. Goeijenbier M, van Sloten TT, Slobbe L, et al. Benefits of flu vaccination for persons with diabetes mellitus: A review. Vaccine. 2017;35(38):5095-5101. doi: 10.1016/j.vaccine.2017.07.095. PubMed
14. Gupta S, Koirala J, Khardori R, Khardori N. Infections in diabetes mellitus and hyperglycemia. Infect Dis Clin North Am. 2007;21(3):617-638, vii. doi: 10.1016/j.idc.2007.07.003. PubMed
15. Carlesimo M, Pennica A, Muscianese M, et al. Multiple skin ulcers due to Serratia marcescens in a immunocompetent patient. G Ital Dermatol Venereol. 2014;149(3):367-370. PubMed
16. Rallis E, Karanikola E, Papadakis P. Severe facial infection caused by Serratia marcescens in an immunocompetent soldier. J Am Acad Dermatol. 2008;58(5 Suppl 1):S109-S110. doi: 10.1016/j.jaad.2007.04.010. PubMed
17. Hadid H, Usman M, Thapa S. Severe osteomyelitis and septic arthritis due to Serratia marcescens in an immunocompetent patient. Case Rep Infect Dis. 2015;2015:347652. doi: 10.1155/2015/347652. PubMed
18. Berbari EF, Kanj SS, Kowalski TJ, et al. 2015 Infectious Diseases Society of America (IDSA) Clinical Practice Guidelines for the Diagnosis and Treatment of Native Vertebral Osteomyelitis in Adults. Clin Infect Dis. 2015;61(6):e26-e46. doi: 10.1093/cid/civ482. PubMed
19. Vertebral Osteomyelitis Guideline Team (Team Leader: Chenoweth CE; Team Members: Bassin BS HS, Mack MR, Kunapuli A, Park P, Quint DJ, Seagull FJ, Wesorick DH; Consultants: Patel RD, Riddell IV J, Lanava KM). Vertebral Osteomyelitis, Discitis, and Spinal Epidural Abscess in Adults. University of Michigan Guidelines for Clinical Care 2013; http://www.med.umich.edu/1info/FHP/practiceguides/vertebral/VO.pdf. Accessed October 26, 2017. 
20. McDonald M. Vertebral osteomyelitis and discitis in adults. 2017; Available at: https://www.uptodate.com/contents/vertebral-osteomyelitis-and-discitis-in-adults. Accessed October 26, 2017. 

References

1. Hejazi A, Falkiner FR. Serratia marcescens. J Med Microbiol. 1997;46(11):903-912. doi: 10.1099/00222615-46-11-903. PubMed
2. Lau JX, Li JY, Yong TY. Non-contiguous multifocal vertebral osteomyelitis caused by erratia marcescens. Mod Rheumatol. 2015;25(2):303-306. doi: 10.3109/14397595.2013.874754. PubMed
3. Dessi A, Puddu M, Testa M, Marcialis MA, Pintus MC, Fanos V. Serratia marcescens infections and outbreaks in neonatal intensive care units. J Chemother. 2009;21(5):493-499. doi: 10.1179/joc.2009.21.5.493. PubMed
4. Mahlen SD. Serratia infections: from military experiments to current practice. Clin Microbiol Rev. 2011;24(4):755-791. doi: 10.1128/CMR.00017-11. PubMed
5. Montagnani C, Cocchi P, Lega L, et al. Serratia marcescens outbreak in a neonatal intensive care unit: crucial role of implementing hand hygiene among external consultants. BMC Infect Dis. 2015;15:11. doi: 10.1186/s12879-014-0734-6. PubMed
6. van Ogtrop ML, van Zoeren-Grobben D, Verbakel-Salomons EM, van Boven CP. Serratia marcescens infections in neonatal departments: description of an outbreak and review of the literature. J Hosp Infect. 1997;36(2):95-103. doi: 10.1016/S0195-6701(97)90115-8. PubMed
7. Weber DJ, Rutala WA, Sickbert-Bennett EE. Outbreaks associated with contaminated antiseptics and disinfectants. Antimicrob Agents Chemother. 2007;51(12):4217-4224. doi: 10.1128/AAC.00138-07. PubMed
8. Ewart S, Brown C, Derksen F, Kufuor-Mensa E. Serratia marcescens endocarditis in a horse. J Am Vet Med Assoc. 1992;200(7):961-963. PubMed
9. Jores J, Beutner G, Hirth-Schmidt I, Borchers K, Pitt TL, Lubke-Becker A. Isolation of Serratia marcescens from an equine abortion in Germany. Vet Rec. 2004;154(8):242-244. doi: 10.1136/vr.154.8.242. PubMed
10. Herra C, Falkiner FR. Serratia marcescens. http://www.antimicrobe.org/b26.asp. Accessed August 22, 2017. 
11. Jacoby GA. AmpC beta-lactamases. Clin Microbiol Rev. 2009;22(1):161-182, Table of Contents. doi: 10.1128/CMR.00036-08. PubMed
12. Chow JW, Fine MJ, Shlaes DM, et al. Enterobacter bacteremia: clinical features and emergence of antibiotic resistance during therapy. Ann Intern Med. 1991;115(8):585-590. doi: 10.7326/0003-4819-115-8-585. PubMed
13. Goeijenbier M, van Sloten TT, Slobbe L, et al. Benefits of flu vaccination for persons with diabetes mellitus: A review. Vaccine. 2017;35(38):5095-5101. doi: 10.1016/j.vaccine.2017.07.095. PubMed
14. Gupta S, Koirala J, Khardori R, Khardori N. Infections in diabetes mellitus and hyperglycemia. Infect Dis Clin North Am. 2007;21(3):617-638, vii. doi: 10.1016/j.idc.2007.07.003. PubMed
15. Carlesimo M, Pennica A, Muscianese M, et al. Multiple skin ulcers due to Serratia marcescens in a immunocompetent patient. G Ital Dermatol Venereol. 2014;149(3):367-370. PubMed
16. Rallis E, Karanikola E, Papadakis P. Severe facial infection caused by Serratia marcescens in an immunocompetent soldier. J Am Acad Dermatol. 2008;58(5 Suppl 1):S109-S110. doi: 10.1016/j.jaad.2007.04.010. PubMed
17. Hadid H, Usman M, Thapa S. Severe osteomyelitis and septic arthritis due to Serratia marcescens in an immunocompetent patient. Case Rep Infect Dis. 2015;2015:347652. doi: 10.1155/2015/347652. PubMed
18. Berbari EF, Kanj SS, Kowalski TJ, et al. 2015 Infectious Diseases Society of America (IDSA) Clinical Practice Guidelines for the Diagnosis and Treatment of Native Vertebral Osteomyelitis in Adults. Clin Infect Dis. 2015;61(6):e26-e46. doi: 10.1093/cid/civ482. PubMed
19. Vertebral Osteomyelitis Guideline Team (Team Leader: Chenoweth CE; Team Members: Bassin BS HS, Mack MR, Kunapuli A, Park P, Quint DJ, Seagull FJ, Wesorick DH; Consultants: Patel RD, Riddell IV J, Lanava KM). Vertebral Osteomyelitis, Discitis, and Spinal Epidural Abscess in Adults. University of Michigan Guidelines for Clinical Care 2013; http://www.med.umich.edu/1info/FHP/practiceguides/vertebral/VO.pdf. Accessed October 26, 2017. 
20. McDonald M. Vertebral osteomyelitis and discitis in adults. 2017; Available at: https://www.uptodate.com/contents/vertebral-osteomyelitis-and-discitis-in-adults. Accessed October 26, 2017. 

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Journal of Hospital Medicine 13(11)
Issue
Journal of Hospital Medicine 13(11)
Page Number
790-794. Published online first September 26, 2018
Page Number
790-794. Published online first September 26, 2018
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Routine Chest Radiographs after Uncomplicated Thoracentesis

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The “Things We Do for No Reason” series reviews practices which have become common parts of hospital care, but which may provide little value to our patients. Practices reviewed in the TWDFNR series do not represent “black and white” conclusions or clinical practice standards, but are meant as a starting place for research and active discussions among hospitalists and patients. We invite you to be part of that discussion. https://www.choosingwisely.org/

Bedside thoracentesis can cause serious complications, such as pneumothorax, re-expansion pulmonary edema, or hemorrhage. These rare complications have led many hospitalists to routinely order chest radiographs (CXRs) following thoracentesis. However, post-thoracentesis CXRs are usually not indicated and can lead to unnecessary radiation exposure and expense. Rather than obtaining routine CXRs, hospitalists should use postprocedural signs and symptoms to identify the occasional patients who require imaging. A risk-stratified approach is a safe and cost-effective way to avoid unnecessary radiographs.

CASE REPORT

A 52-year-old man with decompensated liver disease and hepatic hydrothorax is hospitalized for increasing dyspnea caused by a recurrent pleural effusion. Diuretics do not improve his dyspnea, and his hospitalist recommends a therapeutic thoracentesis for symptom relief. The patient does not have any significant procedural risk factors: He does not have preexisting pulmonary or pleural disease, his platelet count is 105,000 × 103/µl, and his international normalized ratio is 1.3. Bedside sonography demonstrates a large, free-flowing, right-sided pleural effusion. The hospitalist performs an uncomplicated ultrasound-guided removal of 1.5 L of straw-colored fluid with a catheter-over-needle kit. The patient does not have any pain or increased shortness of breath during or after the procedure. The hospitalist reflexively orders a routine chest radiograph to assess for pneumothorax.

Why You Might Think a Chest Radiograph is Helpful after Thoracentesis

Pleural effusions are newly diagnosed in more than 1.5 million Americans annually,1 and hospitalists frequently care for patients requiring thoracentesis. Internal medicine residents traditionally learn to perform this procedure during residency, and thoracentesis remains a common task for both residents and hospitalists.2 Patients typically tolerate thoracentesis well, but they can develop serious complications such as pneumothorax, re-expansion pulmonary edema, or hemothorax. Before the advent of bedside ultrasound, these complications occurred relatively commonly; a 2010 systematic review, for example, found that the rate of pneumothorax from thoracentesis performed without ultrasound was 9.3%.3 Other studies have identified even higher rates of complications, including two case series in which investigators found a 14% rate of major complications4 and a pneumothorax rate of nearly 30%.5 Postprocedure radiographs became common practice because of the high rate of complications, and this practice has persisted for many practitioners despite the substantial safety improvements introduced by bedside ultrasonography.6

 

 

Hospitalists might think routine CXRs are helpful after ultrasound-guided thoracentesis for additional reasons. First, modern guidelines reflecting the low risk of complications after ultrasound-guided procedures have not been released by United States pulmonary medicine societies, and some clinicians may continue to follow practices acquired during the era of unguided thoracentesis. Second, performing postprocedure imaging has become ingrained as a standard part of some institutional procedure checklists6 and some prominent textbooks continue to recommend the practice.7 For some hospitalists, this testing reflex may be reinforced by other common procedures, such as placing a nasogastric tube or a central venous catheter, for which a postprocedure CXR is standard practice. Thus, ordering postprocedure imaging can become internalized as the safe, checklist-based final step of a procedure. Third, hospitalists may order a postprocedure CXR for reasons other than detecting procedural complications. The pleural effusion might be thought to obscure a parenchymal or endobronchial lesion for which a postprocedure CXR may reveal an important finding. Finally, a CXR also may also satisfy the clinician’s curiosity regarding the completeness of drainage.

Why a Routine Postprocedure Chest Radiograph is Not Helpful after Thoracentesis

A routine post-thoracentesis CXR is not necessary for three reasons. First, the use of ultrasound marking or guidance has substantially improved site selection and reduced the rate of complications for experienced operators. For example, a 2010 systematic review found an overall rate of pneumothorax of 4% for ultrasound-guided procedures performed between 1986 and 2006,3 whereas more recently published data suggest the current rate of pneumothorax is closer to 1% when ultrasound marking or guidance is used.8,9 One study of 462 consecutive patients with malignant pleural effusions, for example, showed that the rate of pneumothorax with ultrasound-guided needle-over-catheter thoracentesis was 0.97% (3/310 patients), compared with a rate of 8.89% (12/135 patients) when the procedure was performed without ultrasound.9 Another prospective, randomized study of 160 patients with various causes of pleural effusion showed that the rate of pneumothorax with ultrasound-marked thoracentesis was 1.25% (1/80 patients), compared with 12.5% (10/80 patients) for procedures performed without ultrasound.8 Hospitalists who competently use ultrasound guidance should act on modern estimates of complications and may also choose to incorporate postprocedure ultrasound into their practice. Indeed, the Society of Hospital Medicine recommends against routine chest radiography in asymptomatic patients when sliding lung is visualized on postprocedure ultrasound.10

Second, procedural factors and postprocedural symptoms (new chest pain, dyspnea, or persistent cough) reliably identify patients with high risk of clinically meaningful complications. On one hand, only 1% to 2% of asymptomatic patients have a postprocedure pneumothorax, and clinical monitoring does not lead to chest tube placement in almost all of these cases.11 On the other hand, 67% to 72% of symptomatic patients are found to have complications.12 Doyle et al13 showed that the use of symptoms and procedure-specific factors (such as the aspiration of air, difficult procedure, multiple needle passes, or high operator suspicion of pneumothorax) could obviate the need for routine CXRs in approximately 60% of their procedures without any serious consequences.

Third, postprocedural CXRs very rarely reveal new or unexpected findings. For example, in one series,12 only 3.8% of postdrainage radiographs uncovered new findings, none of which clarified the underlying diagnosis or changed management. To assess the utility of an initial thoracentesis and decide about repeat procedures, begin by asking the patient about symptoms and perform a physical exam.

 

 

Why PostProcedural CHEST RADIOGRAPHS Might be Helpful in Certain Circumstances

CXRs might be helpful in certain scenarios, even when a complication is not suspected. For example, a postprocedure CXR to detect nonexpandable lung or evaluate the rate of recurrence may guide definitive management of patients with recurrent or malignant pleural effusion. Determining completeness of drainage may also assist with planning for palliative measures such as pleurodesis or indwelling pleural catheter placement. A postprocedure CXR is also helpful in patients with a technically difficult procedure or in those with symptoms during or immediately after the procedure. This recommendation is consistent with the 2010 British Thoracic Society guidelines, which recommend CXRs for procedures where air was withdrawn, the procedure was difficult, multiple needle passes were required, or the patient became symptomatic.14 The Society of Hospital Medicine’s recent Position Statement concurs with these guidelines and recommends against routine chest radiography in asymptomatic patients when sliding lung is visualized by postprocedure ultrasound.10

What You Should Do Instead

Hospitalists should not rountinely obtain post-thoracentesis CXRs in asymptomatic patients. Clinical monitoring with subsequent symptom-guided evaluation lowers costs, avoids unnecessary radiation exposure, and has been shown to be successful in a large case series of more than 9,300 patients.15 Some coughing should be expected with all large-volume thoracenteses as a normal response to re-expansion of atelectatic lung. The coughing should not persist past the immediate postprocedure period. If symptoms arise or if a complication is expected, the test of choice is either CXR or, if the hospitalist is a competent sonographer, bedside sonography. Bedside sonography is a low-cost, noninvasive method and has been well studied in the diagnosis of post-thoracentesis pneumothorax.16 CXRs may still be needed to confirm findings by sonography, to investigate postprocedural symptoms in those with pleural adhesions or other lung/pleural diseases (because ultrasonography is less reliable in these patients), or if reexpansion pulmonary edema or other complications are suspected. A robust quality improvement strategy to reduce unnecessary post-thoracentesis CXRs could result in cost savings and spare patients from radiation exposure, because a recent study of almost 1,000 thoracenteses performed at an academic medical center demonstrated that internal medicine residents, pulmonologists, and interventional radiologists order a CXR following 95% of thoracenteses.17 For a hypothetical hospital that orders 100 unnecessary post-thoracentesis CXRs annually, hospitalists could avoid approximately $7,000 in wasted expense per year.18

RECOMMENDATIONS:

  • Do not routinely order post-thoracentesis CXRs.
  • Order a post-thoracentesis CXR if (1) the patient had new chest pain, dyspnea, or persistent cough during or after the procedure; (2) procedural features suggest increased risk of a complication (multiple needle passes, aspiration of air, difficulty obtaining fluid); or (3) a definitive palliative procedure will be arranged based on lung expansion.
  • If qualified, use bedside sonography as a first step in the diagnosis of pneumothorax, reserving CXRs for those patients in whom accurate sonography is not possible, an alternative diagnosis is suspected, or when sonography findings are equivocal.

CONCLUSION

 

 

Following the uncomplicated thoracentesis, the hospitalist reconsidered the initial decision to order a CXR and rapidly assessed the patient’s risk of complications. Because the procedure required only one needle pass, air was not aspirated, and the patient did not experience prolonged coughing or pain, the CXR order was canceled. The patient recovered uneventfully and was spared the cost and radiation associated with the proposed CXR.

Do you think this is a low-value practice? Is this truly a “Thing We Do for No Reason?” Share what you do in your practice and join in the conversation online by retweeting it on Twitter (#TWDFNR) and liking it on Facebook. We invite you to propose ideas for other “Things We Do for No Reason” topics by emailing [email protected].cknowledgments

Acknowledgements

The authors would like to thank Patricia Kritek and Somnath Mookherjee for their comments on an early version of this manuscript.

Disclosures

The authors have nothing to disclose.

 

References

1. Light RW. Pleural effusions. Med Clin North Am. 2011;95:1055-1070. doi: 10.1016/j.mcna.2011.08.005. PubMed
2. ABIM Policies and Procedures for Certification. http://www.abim.org/~/media/ABIM Public/Files/pdf/publications/certification-guides/policies-and-procedures.pdf. Accessed 10th February 2018. 
3. Gordon CE, Feller-Kopman D, Balk EM, Smetana GW. Pneumothorax following thoracentesis: a systematic review and meta-analysis. Arch Intern Med. 2010;170:332-339. doi: 10.1001/archinternmed.2009.548. PubMed
4. Seneff MG, Corwin RW, Gold LH, Irwin RS. Complications associated with thoracocentesis. Chest. 1986;90:97-100. doi: 10.1378/chest.90.1.97 PubMed
5. Grogan DR, Irwin RS, Channick R, Raptopoulos V, Curley FJ, Bartter T. Complications associated with thoracentesis a prospective, randomized study comparing three different methods. Arch Intern Med. 1990;150:873-877. doi: 10.1001/archinte.150.4.873 PubMed
6. Berg D, Berg K, Riesenberg LA, et al. The development of a validated checklist for thoracentesis preliminary results. Am J Med Qual. 2013;28:220-226. doi: 10.1177/1062860612459881. PubMed
7. Morris CA, Wolf A. Video 482e-1 clinical procedure tutorial: thoracentesis. Harrison’s Principles of Internal Medicine, 19th edition. http://accessmedicine.mhmedical.com/MultimediaPlayer.aspx?MultimediaID=12986897. Accessed 28th September 2017. 
8. Perazzo A, Gatto P, Barlascini C, Ferrari-Bravo M, Nicolini A. Can ultrasound guidance reduce the risk of pneumothorax following thoracentesis?* , ** A ultrassonografia pode reduzir o risco de pneumotórax após toracocentese? J Bras Pneumol. 2013;40:6-12. doi: 10.1590/S1806-37132014000100002 PubMed
9. Cavanna L, Mordenti P, Bertè R, et al. Ultrasound guidance reduces pneumothorax rate and improves safety of thoracentesis in malignant pleural effusion: report on 445 consecutive patients with advanced cancer. World J Surg Oncol. 2014;12:139. doi: 10.1186/1477-7819-12-139. PubMed
10. Dancel R, Schnobrich D, Puri N, et al. Recommendations on the use of ultrasound guidance for adult thoracentesis: a position statement of the Society of Hospital Medicine. J Hosp Med. 2018;13:126-135. doi: 10.12788/jhm.2940. PubMed
11. Alemán C, Alegre J, Armadans L, et al. The value of chest roentgenography in the diagnosis of pneumothorax after thoracentesis. Am J Med. 1999;107:340-343. doi: 10.1016/S0002-9343(99)00238-7 PubMed
12. Petersen WG, Zimmerman R. Limited utility of chest radiograph after thoracentesis. Chest. 2000;117:1038-1042. doi: 10.1378/chest.117.4.1038 PubMed
13. Doyle JJ, Hnatiuk OW, Torrington KG, Slade AR, Howard RS. Necessity of routine chest roentgenography after thoracentesis. Ann Intern Med. 1996;124: 816-820. doi: 10.7326/0003-4819-124-9-199605010-00005 PubMed
14. BTS- British Thoracic Society. BTS Pleural Disease Guideline 2010. Thorax 2010;65:1-76. doi: 10.1136/thx.2010.137026. 
15. Ault MJ, Rosen BT, Scher J, Feinglass J, Barsuk JH. Thoracentesis outcomes: a 12-year experience. Thorax 2015;70:127-132. 10.1136/thoraxjnl-2014-206114. PubMed
16. Shostak E, Brylka D, Krepp J, Pua B, Sanders A. Bedside ultrasonography in detection of post procedure pneumothorax. J Ultrasound Med. 2013;32:1003-1009. doi: 10.7863/ultra.32.6.1003 PubMed
17. Barsuk JH, Cohen ER, Williams MV, et al. Simulation-based mastery learning for thoracentesis skills improves patient outcomes. Acad Med. 2017; doi: 10.1097/ACM.0000000000001965 PubMed
18. Healthcare Bluebook. https://www.healthcarebluebook.com/page_ProcedureDetails.aspx?cftId=137&g=Chest+X-Ray. Accessed 10th February 2018.

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Journal of Hospital Medicine 13(11)
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787-789. Published online first August 29, 2018
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Related Articles

The “Things We Do for No Reason” series reviews practices which have become common parts of hospital care, but which may provide little value to our patients. Practices reviewed in the TWDFNR series do not represent “black and white” conclusions or clinical practice standards, but are meant as a starting place for research and active discussions among hospitalists and patients. We invite you to be part of that discussion. https://www.choosingwisely.org/

Bedside thoracentesis can cause serious complications, such as pneumothorax, re-expansion pulmonary edema, or hemorrhage. These rare complications have led many hospitalists to routinely order chest radiographs (CXRs) following thoracentesis. However, post-thoracentesis CXRs are usually not indicated and can lead to unnecessary radiation exposure and expense. Rather than obtaining routine CXRs, hospitalists should use postprocedural signs and symptoms to identify the occasional patients who require imaging. A risk-stratified approach is a safe and cost-effective way to avoid unnecessary radiographs.

CASE REPORT

A 52-year-old man with decompensated liver disease and hepatic hydrothorax is hospitalized for increasing dyspnea caused by a recurrent pleural effusion. Diuretics do not improve his dyspnea, and his hospitalist recommends a therapeutic thoracentesis for symptom relief. The patient does not have any significant procedural risk factors: He does not have preexisting pulmonary or pleural disease, his platelet count is 105,000 × 103/µl, and his international normalized ratio is 1.3. Bedside sonography demonstrates a large, free-flowing, right-sided pleural effusion. The hospitalist performs an uncomplicated ultrasound-guided removal of 1.5 L of straw-colored fluid with a catheter-over-needle kit. The patient does not have any pain or increased shortness of breath during or after the procedure. The hospitalist reflexively orders a routine chest radiograph to assess for pneumothorax.

Why You Might Think a Chest Radiograph is Helpful after Thoracentesis

Pleural effusions are newly diagnosed in more than 1.5 million Americans annually,1 and hospitalists frequently care for patients requiring thoracentesis. Internal medicine residents traditionally learn to perform this procedure during residency, and thoracentesis remains a common task for both residents and hospitalists.2 Patients typically tolerate thoracentesis well, but they can develop serious complications such as pneumothorax, re-expansion pulmonary edema, or hemothorax. Before the advent of bedside ultrasound, these complications occurred relatively commonly; a 2010 systematic review, for example, found that the rate of pneumothorax from thoracentesis performed without ultrasound was 9.3%.3 Other studies have identified even higher rates of complications, including two case series in which investigators found a 14% rate of major complications4 and a pneumothorax rate of nearly 30%.5 Postprocedure radiographs became common practice because of the high rate of complications, and this practice has persisted for many practitioners despite the substantial safety improvements introduced by bedside ultrasonography.6

 

 

Hospitalists might think routine CXRs are helpful after ultrasound-guided thoracentesis for additional reasons. First, modern guidelines reflecting the low risk of complications after ultrasound-guided procedures have not been released by United States pulmonary medicine societies, and some clinicians may continue to follow practices acquired during the era of unguided thoracentesis. Second, performing postprocedure imaging has become ingrained as a standard part of some institutional procedure checklists6 and some prominent textbooks continue to recommend the practice.7 For some hospitalists, this testing reflex may be reinforced by other common procedures, such as placing a nasogastric tube or a central venous catheter, for which a postprocedure CXR is standard practice. Thus, ordering postprocedure imaging can become internalized as the safe, checklist-based final step of a procedure. Third, hospitalists may order a postprocedure CXR for reasons other than detecting procedural complications. The pleural effusion might be thought to obscure a parenchymal or endobronchial lesion for which a postprocedure CXR may reveal an important finding. Finally, a CXR also may also satisfy the clinician’s curiosity regarding the completeness of drainage.

Why a Routine Postprocedure Chest Radiograph is Not Helpful after Thoracentesis

A routine post-thoracentesis CXR is not necessary for three reasons. First, the use of ultrasound marking or guidance has substantially improved site selection and reduced the rate of complications for experienced operators. For example, a 2010 systematic review found an overall rate of pneumothorax of 4% for ultrasound-guided procedures performed between 1986 and 2006,3 whereas more recently published data suggest the current rate of pneumothorax is closer to 1% when ultrasound marking or guidance is used.8,9 One study of 462 consecutive patients with malignant pleural effusions, for example, showed that the rate of pneumothorax with ultrasound-guided needle-over-catheter thoracentesis was 0.97% (3/310 patients), compared with a rate of 8.89% (12/135 patients) when the procedure was performed without ultrasound.9 Another prospective, randomized study of 160 patients with various causes of pleural effusion showed that the rate of pneumothorax with ultrasound-marked thoracentesis was 1.25% (1/80 patients), compared with 12.5% (10/80 patients) for procedures performed without ultrasound.8 Hospitalists who competently use ultrasound guidance should act on modern estimates of complications and may also choose to incorporate postprocedure ultrasound into their practice. Indeed, the Society of Hospital Medicine recommends against routine chest radiography in asymptomatic patients when sliding lung is visualized on postprocedure ultrasound.10

Second, procedural factors and postprocedural symptoms (new chest pain, dyspnea, or persistent cough) reliably identify patients with high risk of clinically meaningful complications. On one hand, only 1% to 2% of asymptomatic patients have a postprocedure pneumothorax, and clinical monitoring does not lead to chest tube placement in almost all of these cases.11 On the other hand, 67% to 72% of symptomatic patients are found to have complications.12 Doyle et al13 showed that the use of symptoms and procedure-specific factors (such as the aspiration of air, difficult procedure, multiple needle passes, or high operator suspicion of pneumothorax) could obviate the need for routine CXRs in approximately 60% of their procedures without any serious consequences.

Third, postprocedural CXRs very rarely reveal new or unexpected findings. For example, in one series,12 only 3.8% of postdrainage radiographs uncovered new findings, none of which clarified the underlying diagnosis or changed management. To assess the utility of an initial thoracentesis and decide about repeat procedures, begin by asking the patient about symptoms and perform a physical exam.

 

 

Why PostProcedural CHEST RADIOGRAPHS Might be Helpful in Certain Circumstances

CXRs might be helpful in certain scenarios, even when a complication is not suspected. For example, a postprocedure CXR to detect nonexpandable lung or evaluate the rate of recurrence may guide definitive management of patients with recurrent or malignant pleural effusion. Determining completeness of drainage may also assist with planning for palliative measures such as pleurodesis or indwelling pleural catheter placement. A postprocedure CXR is also helpful in patients with a technically difficult procedure or in those with symptoms during or immediately after the procedure. This recommendation is consistent with the 2010 British Thoracic Society guidelines, which recommend CXRs for procedures where air was withdrawn, the procedure was difficult, multiple needle passes were required, or the patient became symptomatic.14 The Society of Hospital Medicine’s recent Position Statement concurs with these guidelines and recommends against routine chest radiography in asymptomatic patients when sliding lung is visualized by postprocedure ultrasound.10

What You Should Do Instead

Hospitalists should not rountinely obtain post-thoracentesis CXRs in asymptomatic patients. Clinical monitoring with subsequent symptom-guided evaluation lowers costs, avoids unnecessary radiation exposure, and has been shown to be successful in a large case series of more than 9,300 patients.15 Some coughing should be expected with all large-volume thoracenteses as a normal response to re-expansion of atelectatic lung. The coughing should not persist past the immediate postprocedure period. If symptoms arise or if a complication is expected, the test of choice is either CXR or, if the hospitalist is a competent sonographer, bedside sonography. Bedside sonography is a low-cost, noninvasive method and has been well studied in the diagnosis of post-thoracentesis pneumothorax.16 CXRs may still be needed to confirm findings by sonography, to investigate postprocedural symptoms in those with pleural adhesions or other lung/pleural diseases (because ultrasonography is less reliable in these patients), or if reexpansion pulmonary edema or other complications are suspected. A robust quality improvement strategy to reduce unnecessary post-thoracentesis CXRs could result in cost savings and spare patients from radiation exposure, because a recent study of almost 1,000 thoracenteses performed at an academic medical center demonstrated that internal medicine residents, pulmonologists, and interventional radiologists order a CXR following 95% of thoracenteses.17 For a hypothetical hospital that orders 100 unnecessary post-thoracentesis CXRs annually, hospitalists could avoid approximately $7,000 in wasted expense per year.18

RECOMMENDATIONS:

  • Do not routinely order post-thoracentesis CXRs.
  • Order a post-thoracentesis CXR if (1) the patient had new chest pain, dyspnea, or persistent cough during or after the procedure; (2) procedural features suggest increased risk of a complication (multiple needle passes, aspiration of air, difficulty obtaining fluid); or (3) a definitive palliative procedure will be arranged based on lung expansion.
  • If qualified, use bedside sonography as a first step in the diagnosis of pneumothorax, reserving CXRs for those patients in whom accurate sonography is not possible, an alternative diagnosis is suspected, or when sonography findings are equivocal.

CONCLUSION

 

 

Following the uncomplicated thoracentesis, the hospitalist reconsidered the initial decision to order a CXR and rapidly assessed the patient’s risk of complications. Because the procedure required only one needle pass, air was not aspirated, and the patient did not experience prolonged coughing or pain, the CXR order was canceled. The patient recovered uneventfully and was spared the cost and radiation associated with the proposed CXR.

Do you think this is a low-value practice? Is this truly a “Thing We Do for No Reason?” Share what you do in your practice and join in the conversation online by retweeting it on Twitter (#TWDFNR) and liking it on Facebook. We invite you to propose ideas for other “Things We Do for No Reason” topics by emailing [email protected].cknowledgments

Acknowledgements

The authors would like to thank Patricia Kritek and Somnath Mookherjee for their comments on an early version of this manuscript.

Disclosures

The authors have nothing to disclose.

 

The “Things We Do for No Reason” series reviews practices which have become common parts of hospital care, but which may provide little value to our patients. Practices reviewed in the TWDFNR series do not represent “black and white” conclusions or clinical practice standards, but are meant as a starting place for research and active discussions among hospitalists and patients. We invite you to be part of that discussion. https://www.choosingwisely.org/

Bedside thoracentesis can cause serious complications, such as pneumothorax, re-expansion pulmonary edema, or hemorrhage. These rare complications have led many hospitalists to routinely order chest radiographs (CXRs) following thoracentesis. However, post-thoracentesis CXRs are usually not indicated and can lead to unnecessary radiation exposure and expense. Rather than obtaining routine CXRs, hospitalists should use postprocedural signs and symptoms to identify the occasional patients who require imaging. A risk-stratified approach is a safe and cost-effective way to avoid unnecessary radiographs.

CASE REPORT

A 52-year-old man with decompensated liver disease and hepatic hydrothorax is hospitalized for increasing dyspnea caused by a recurrent pleural effusion. Diuretics do not improve his dyspnea, and his hospitalist recommends a therapeutic thoracentesis for symptom relief. The patient does not have any significant procedural risk factors: He does not have preexisting pulmonary or pleural disease, his platelet count is 105,000 × 103/µl, and his international normalized ratio is 1.3. Bedside sonography demonstrates a large, free-flowing, right-sided pleural effusion. The hospitalist performs an uncomplicated ultrasound-guided removal of 1.5 L of straw-colored fluid with a catheter-over-needle kit. The patient does not have any pain or increased shortness of breath during or after the procedure. The hospitalist reflexively orders a routine chest radiograph to assess for pneumothorax.

Why You Might Think a Chest Radiograph is Helpful after Thoracentesis

Pleural effusions are newly diagnosed in more than 1.5 million Americans annually,1 and hospitalists frequently care for patients requiring thoracentesis. Internal medicine residents traditionally learn to perform this procedure during residency, and thoracentesis remains a common task for both residents and hospitalists.2 Patients typically tolerate thoracentesis well, but they can develop serious complications such as pneumothorax, re-expansion pulmonary edema, or hemothorax. Before the advent of bedside ultrasound, these complications occurred relatively commonly; a 2010 systematic review, for example, found that the rate of pneumothorax from thoracentesis performed without ultrasound was 9.3%.3 Other studies have identified even higher rates of complications, including two case series in which investigators found a 14% rate of major complications4 and a pneumothorax rate of nearly 30%.5 Postprocedure radiographs became common practice because of the high rate of complications, and this practice has persisted for many practitioners despite the substantial safety improvements introduced by bedside ultrasonography.6

 

 

Hospitalists might think routine CXRs are helpful after ultrasound-guided thoracentesis for additional reasons. First, modern guidelines reflecting the low risk of complications after ultrasound-guided procedures have not been released by United States pulmonary medicine societies, and some clinicians may continue to follow practices acquired during the era of unguided thoracentesis. Second, performing postprocedure imaging has become ingrained as a standard part of some institutional procedure checklists6 and some prominent textbooks continue to recommend the practice.7 For some hospitalists, this testing reflex may be reinforced by other common procedures, such as placing a nasogastric tube or a central venous catheter, for which a postprocedure CXR is standard practice. Thus, ordering postprocedure imaging can become internalized as the safe, checklist-based final step of a procedure. Third, hospitalists may order a postprocedure CXR for reasons other than detecting procedural complications. The pleural effusion might be thought to obscure a parenchymal or endobronchial lesion for which a postprocedure CXR may reveal an important finding. Finally, a CXR also may also satisfy the clinician’s curiosity regarding the completeness of drainage.

Why a Routine Postprocedure Chest Radiograph is Not Helpful after Thoracentesis

A routine post-thoracentesis CXR is not necessary for three reasons. First, the use of ultrasound marking or guidance has substantially improved site selection and reduced the rate of complications for experienced operators. For example, a 2010 systematic review found an overall rate of pneumothorax of 4% for ultrasound-guided procedures performed between 1986 and 2006,3 whereas more recently published data suggest the current rate of pneumothorax is closer to 1% when ultrasound marking or guidance is used.8,9 One study of 462 consecutive patients with malignant pleural effusions, for example, showed that the rate of pneumothorax with ultrasound-guided needle-over-catheter thoracentesis was 0.97% (3/310 patients), compared with a rate of 8.89% (12/135 patients) when the procedure was performed without ultrasound.9 Another prospective, randomized study of 160 patients with various causes of pleural effusion showed that the rate of pneumothorax with ultrasound-marked thoracentesis was 1.25% (1/80 patients), compared with 12.5% (10/80 patients) for procedures performed without ultrasound.8 Hospitalists who competently use ultrasound guidance should act on modern estimates of complications and may also choose to incorporate postprocedure ultrasound into their practice. Indeed, the Society of Hospital Medicine recommends against routine chest radiography in asymptomatic patients when sliding lung is visualized on postprocedure ultrasound.10

Second, procedural factors and postprocedural symptoms (new chest pain, dyspnea, or persistent cough) reliably identify patients with high risk of clinically meaningful complications. On one hand, only 1% to 2% of asymptomatic patients have a postprocedure pneumothorax, and clinical monitoring does not lead to chest tube placement in almost all of these cases.11 On the other hand, 67% to 72% of symptomatic patients are found to have complications.12 Doyle et al13 showed that the use of symptoms and procedure-specific factors (such as the aspiration of air, difficult procedure, multiple needle passes, or high operator suspicion of pneumothorax) could obviate the need for routine CXRs in approximately 60% of their procedures without any serious consequences.

Third, postprocedural CXRs very rarely reveal new or unexpected findings. For example, in one series,12 only 3.8% of postdrainage radiographs uncovered new findings, none of which clarified the underlying diagnosis or changed management. To assess the utility of an initial thoracentesis and decide about repeat procedures, begin by asking the patient about symptoms and perform a physical exam.

 

 

Why PostProcedural CHEST RADIOGRAPHS Might be Helpful in Certain Circumstances

CXRs might be helpful in certain scenarios, even when a complication is not suspected. For example, a postprocedure CXR to detect nonexpandable lung or evaluate the rate of recurrence may guide definitive management of patients with recurrent or malignant pleural effusion. Determining completeness of drainage may also assist with planning for palliative measures such as pleurodesis or indwelling pleural catheter placement. A postprocedure CXR is also helpful in patients with a technically difficult procedure or in those with symptoms during or immediately after the procedure. This recommendation is consistent with the 2010 British Thoracic Society guidelines, which recommend CXRs for procedures where air was withdrawn, the procedure was difficult, multiple needle passes were required, or the patient became symptomatic.14 The Society of Hospital Medicine’s recent Position Statement concurs with these guidelines and recommends against routine chest radiography in asymptomatic patients when sliding lung is visualized by postprocedure ultrasound.10

What You Should Do Instead

Hospitalists should not rountinely obtain post-thoracentesis CXRs in asymptomatic patients. Clinical monitoring with subsequent symptom-guided evaluation lowers costs, avoids unnecessary radiation exposure, and has been shown to be successful in a large case series of more than 9,300 patients.15 Some coughing should be expected with all large-volume thoracenteses as a normal response to re-expansion of atelectatic lung. The coughing should not persist past the immediate postprocedure period. If symptoms arise or if a complication is expected, the test of choice is either CXR or, if the hospitalist is a competent sonographer, bedside sonography. Bedside sonography is a low-cost, noninvasive method and has been well studied in the diagnosis of post-thoracentesis pneumothorax.16 CXRs may still be needed to confirm findings by sonography, to investigate postprocedural symptoms in those with pleural adhesions or other lung/pleural diseases (because ultrasonography is less reliable in these patients), or if reexpansion pulmonary edema or other complications are suspected. A robust quality improvement strategy to reduce unnecessary post-thoracentesis CXRs could result in cost savings and spare patients from radiation exposure, because a recent study of almost 1,000 thoracenteses performed at an academic medical center demonstrated that internal medicine residents, pulmonologists, and interventional radiologists order a CXR following 95% of thoracenteses.17 For a hypothetical hospital that orders 100 unnecessary post-thoracentesis CXRs annually, hospitalists could avoid approximately $7,000 in wasted expense per year.18

RECOMMENDATIONS:

  • Do not routinely order post-thoracentesis CXRs.
  • Order a post-thoracentesis CXR if (1) the patient had new chest pain, dyspnea, or persistent cough during or after the procedure; (2) procedural features suggest increased risk of a complication (multiple needle passes, aspiration of air, difficulty obtaining fluid); or (3) a definitive palliative procedure will be arranged based on lung expansion.
  • If qualified, use bedside sonography as a first step in the diagnosis of pneumothorax, reserving CXRs for those patients in whom accurate sonography is not possible, an alternative diagnosis is suspected, or when sonography findings are equivocal.

CONCLUSION

 

 

Following the uncomplicated thoracentesis, the hospitalist reconsidered the initial decision to order a CXR and rapidly assessed the patient’s risk of complications. Because the procedure required only one needle pass, air was not aspirated, and the patient did not experience prolonged coughing or pain, the CXR order was canceled. The patient recovered uneventfully and was spared the cost and radiation associated with the proposed CXR.

Do you think this is a low-value practice? Is this truly a “Thing We Do for No Reason?” Share what you do in your practice and join in the conversation online by retweeting it on Twitter (#TWDFNR) and liking it on Facebook. We invite you to propose ideas for other “Things We Do for No Reason” topics by emailing [email protected].cknowledgments

Acknowledgements

The authors would like to thank Patricia Kritek and Somnath Mookherjee for their comments on an early version of this manuscript.

Disclosures

The authors have nothing to disclose.

 

References

1. Light RW. Pleural effusions. Med Clin North Am. 2011;95:1055-1070. doi: 10.1016/j.mcna.2011.08.005. PubMed
2. ABIM Policies and Procedures for Certification. http://www.abim.org/~/media/ABIM Public/Files/pdf/publications/certification-guides/policies-and-procedures.pdf. Accessed 10th February 2018. 
3. Gordon CE, Feller-Kopman D, Balk EM, Smetana GW. Pneumothorax following thoracentesis: a systematic review and meta-analysis. Arch Intern Med. 2010;170:332-339. doi: 10.1001/archinternmed.2009.548. PubMed
4. Seneff MG, Corwin RW, Gold LH, Irwin RS. Complications associated with thoracocentesis. Chest. 1986;90:97-100. doi: 10.1378/chest.90.1.97 PubMed
5. Grogan DR, Irwin RS, Channick R, Raptopoulos V, Curley FJ, Bartter T. Complications associated with thoracentesis a prospective, randomized study comparing three different methods. Arch Intern Med. 1990;150:873-877. doi: 10.1001/archinte.150.4.873 PubMed
6. Berg D, Berg K, Riesenberg LA, et al. The development of a validated checklist for thoracentesis preliminary results. Am J Med Qual. 2013;28:220-226. doi: 10.1177/1062860612459881. PubMed
7. Morris CA, Wolf A. Video 482e-1 clinical procedure tutorial: thoracentesis. Harrison’s Principles of Internal Medicine, 19th edition. http://accessmedicine.mhmedical.com/MultimediaPlayer.aspx?MultimediaID=12986897. Accessed 28th September 2017. 
8. Perazzo A, Gatto P, Barlascini C, Ferrari-Bravo M, Nicolini A. Can ultrasound guidance reduce the risk of pneumothorax following thoracentesis?* , ** A ultrassonografia pode reduzir o risco de pneumotórax após toracocentese? J Bras Pneumol. 2013;40:6-12. doi: 10.1590/S1806-37132014000100002 PubMed
9. Cavanna L, Mordenti P, Bertè R, et al. Ultrasound guidance reduces pneumothorax rate and improves safety of thoracentesis in malignant pleural effusion: report on 445 consecutive patients with advanced cancer. World J Surg Oncol. 2014;12:139. doi: 10.1186/1477-7819-12-139. PubMed
10. Dancel R, Schnobrich D, Puri N, et al. Recommendations on the use of ultrasound guidance for adult thoracentesis: a position statement of the Society of Hospital Medicine. J Hosp Med. 2018;13:126-135. doi: 10.12788/jhm.2940. PubMed
11. Alemán C, Alegre J, Armadans L, et al. The value of chest roentgenography in the diagnosis of pneumothorax after thoracentesis. Am J Med. 1999;107:340-343. doi: 10.1016/S0002-9343(99)00238-7 PubMed
12. Petersen WG, Zimmerman R. Limited utility of chest radiograph after thoracentesis. Chest. 2000;117:1038-1042. doi: 10.1378/chest.117.4.1038 PubMed
13. Doyle JJ, Hnatiuk OW, Torrington KG, Slade AR, Howard RS. Necessity of routine chest roentgenography after thoracentesis. Ann Intern Med. 1996;124: 816-820. doi: 10.7326/0003-4819-124-9-199605010-00005 PubMed
14. BTS- British Thoracic Society. BTS Pleural Disease Guideline 2010. Thorax 2010;65:1-76. doi: 10.1136/thx.2010.137026. 
15. Ault MJ, Rosen BT, Scher J, Feinglass J, Barsuk JH. Thoracentesis outcomes: a 12-year experience. Thorax 2015;70:127-132. 10.1136/thoraxjnl-2014-206114. PubMed
16. Shostak E, Brylka D, Krepp J, Pua B, Sanders A. Bedside ultrasonography in detection of post procedure pneumothorax. J Ultrasound Med. 2013;32:1003-1009. doi: 10.7863/ultra.32.6.1003 PubMed
17. Barsuk JH, Cohen ER, Williams MV, et al. Simulation-based mastery learning for thoracentesis skills improves patient outcomes. Acad Med. 2017; doi: 10.1097/ACM.0000000000001965 PubMed
18. Healthcare Bluebook. https://www.healthcarebluebook.com/page_ProcedureDetails.aspx?cftId=137&g=Chest+X-Ray. Accessed 10th February 2018.

References

1. Light RW. Pleural effusions. Med Clin North Am. 2011;95:1055-1070. doi: 10.1016/j.mcna.2011.08.005. PubMed
2. ABIM Policies and Procedures for Certification. http://www.abim.org/~/media/ABIM Public/Files/pdf/publications/certification-guides/policies-and-procedures.pdf. Accessed 10th February 2018. 
3. Gordon CE, Feller-Kopman D, Balk EM, Smetana GW. Pneumothorax following thoracentesis: a systematic review and meta-analysis. Arch Intern Med. 2010;170:332-339. doi: 10.1001/archinternmed.2009.548. PubMed
4. Seneff MG, Corwin RW, Gold LH, Irwin RS. Complications associated with thoracocentesis. Chest. 1986;90:97-100. doi: 10.1378/chest.90.1.97 PubMed
5. Grogan DR, Irwin RS, Channick R, Raptopoulos V, Curley FJ, Bartter T. Complications associated with thoracentesis a prospective, randomized study comparing three different methods. Arch Intern Med. 1990;150:873-877. doi: 10.1001/archinte.150.4.873 PubMed
6. Berg D, Berg K, Riesenberg LA, et al. The development of a validated checklist for thoracentesis preliminary results. Am J Med Qual. 2013;28:220-226. doi: 10.1177/1062860612459881. PubMed
7. Morris CA, Wolf A. Video 482e-1 clinical procedure tutorial: thoracentesis. Harrison’s Principles of Internal Medicine, 19th edition. http://accessmedicine.mhmedical.com/MultimediaPlayer.aspx?MultimediaID=12986897. Accessed 28th September 2017. 
8. Perazzo A, Gatto P, Barlascini C, Ferrari-Bravo M, Nicolini A. Can ultrasound guidance reduce the risk of pneumothorax following thoracentesis?* , ** A ultrassonografia pode reduzir o risco de pneumotórax após toracocentese? J Bras Pneumol. 2013;40:6-12. doi: 10.1590/S1806-37132014000100002 PubMed
9. Cavanna L, Mordenti P, Bertè R, et al. Ultrasound guidance reduces pneumothorax rate and improves safety of thoracentesis in malignant pleural effusion: report on 445 consecutive patients with advanced cancer. World J Surg Oncol. 2014;12:139. doi: 10.1186/1477-7819-12-139. PubMed
10. Dancel R, Schnobrich D, Puri N, et al. Recommendations on the use of ultrasound guidance for adult thoracentesis: a position statement of the Society of Hospital Medicine. J Hosp Med. 2018;13:126-135. doi: 10.12788/jhm.2940. PubMed
11. Alemán C, Alegre J, Armadans L, et al. The value of chest roentgenography in the diagnosis of pneumothorax after thoracentesis. Am J Med. 1999;107:340-343. doi: 10.1016/S0002-9343(99)00238-7 PubMed
12. Petersen WG, Zimmerman R. Limited utility of chest radiograph after thoracentesis. Chest. 2000;117:1038-1042. doi: 10.1378/chest.117.4.1038 PubMed
13. Doyle JJ, Hnatiuk OW, Torrington KG, Slade AR, Howard RS. Necessity of routine chest roentgenography after thoracentesis. Ann Intern Med. 1996;124: 816-820. doi: 10.7326/0003-4819-124-9-199605010-00005 PubMed
14. BTS- British Thoracic Society. BTS Pleural Disease Guideline 2010. Thorax 2010;65:1-76. doi: 10.1136/thx.2010.137026. 
15. Ault MJ, Rosen BT, Scher J, Feinglass J, Barsuk JH. Thoracentesis outcomes: a 12-year experience. Thorax 2015;70:127-132. 10.1136/thoraxjnl-2014-206114. PubMed
16. Shostak E, Brylka D, Krepp J, Pua B, Sanders A. Bedside ultrasonography in detection of post procedure pneumothorax. J Ultrasound Med. 2013;32:1003-1009. doi: 10.7863/ultra.32.6.1003 PubMed
17. Barsuk JH, Cohen ER, Williams MV, et al. Simulation-based mastery learning for thoracentesis skills improves patient outcomes. Acad Med. 2017; doi: 10.1097/ACM.0000000000001965 PubMed
18. Healthcare Bluebook. https://www.healthcarebluebook.com/page_ProcedureDetails.aspx?cftId=137&g=Chest+X-Ray. Accessed 10th February 2018.

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Michael J. Lenaeus, M.D., Ph.D., University of Washington Medical Center, 1959 NE Pacific St., Box 356429, Seattle, WA 98195; Telephone: 206-221-7969; Fax: 206-221-8732; E-mail: [email protected]
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Smoking Cessation after Hospital Discharge: Factors Associated with Abstinence

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Cigarette smoking is the leading cause of preventable deaths in the United States.1 Smoking contributes to several health problems that require hospitalization. Hospitalization also offers smokers an opportunity to quit because hospital policies prohibit smoking indoors while a health threat increases the motivation to quit.2 Brief bedside smoking cessation counseling with follow-up contact after discharge increases postdischarge tobacco abstinence rates by 37%.2 Identifying the characteristics of patients who are most likely to stop smoking after hospital discharge could identify strategies for interventions to help more smokers to succeed. It could also guide hospital clinicians’ efforts to provide effective brief messages to promote cessation by inpatients under their care during this teachable moment.

Sociodemographic factors, tobacco use, and psychological and medical factors have been associated with successful quit attempts by smokers in the general population.3,4 Far less is known about the predictors of success in quitting smoking and maintaining abstinence after hospitalization. The characteristics associated with abstinence at postdischarge follow-up in prior studies of hospitalized smokers were male gender, greater confidence in quitting, greater readiness to quit, less nicotine dependence, and having a smoking-related illness.5-8 However, most of the prior studies were limited to 1 geographic region,5,6 focused only on a specific subgroup (eg, coronary patients9), or did not biochemically verify tobacco abstinence.8 In fact, to our knowledge, only one prior study has examined the predictors of quitting among a broad sample of hospital patients enrolled across multiple hospitals and biochemically verified abstinence.6 That study was conducted nearly two decades ago in one Midwestern state.

Thus, the present study aimed to identify factors independently associated with sustained postdischarge tobacco abstinence among hospitalized smokers who planned to quit smoking.10 Building on previous work, this study includes a large number of smokers with varied diagnoses admitted to one of three hospitals in two states, uses biochemically verified abstinence as the outcome measure, and examines multiple variables that were identified during the inpatient stay. We hypothesize that consistent with prior literature on this topic, factors independently associated with cessation in the present study will include confidence and intention to quit, degree of nicotine dependence, and a discharge diagnosis of a smoking-related disease.

 

 

METHODS

We analyzed data from the Helping HAND2 Trial (HH2; NCT01714323), a randomized clinical trial conducted at the following three hospitals: Massachusetts General Hospital (MGH) in Boston, MA; University of Pittsburgh Medical Center (UPMC) in Pittsburgh, PA; and North Shore Medical Center (NSMC) in Salem, MA. Enrollment occurred from December 2012 to July 2014. The study methodology has been reported elsewhere.11 This study was approved by the Institutional Review Boards of Partners HealthCare and University of Pittsburgh.

PARTICIPANTS

Hospital inpatients were eligible for enrollment if they were

  • >18 years old, daily smokers, received smoking cessation counseling in the hospital (ie, standard of care for inpatient smokers), and planned to quit or try to quit smoking after discharge. Exclusion criteria included no access to a telephone, not speaking English, psychiatric or cognitive impairment, medical instability, or admission to obstetric or psychiatric units. All participants were offered nicotine replacement and one counseling session by a tobacco treatment specialist during hospitalization.

STUDY CONDITIONS

Participants were enrolled before discharge and randomly assigned to Sustained Care (Intervention) or Standard Care (Control) conditions.10,11 In the Standard Care condition, participants received advice to call a free telephone quit line and a tailored recommendation for postdischarge pharmacotherapy. Participants randomized to Sustained Care received a free 30-day supply of their choice of FDA-approved tobacco cessation pharmacotherapy at hospital discharge (refillable twice) and five automated interactive voice response calls over three months postdischarge to allow them to access counseling or refill medications.

MEASURES

Baseline Demographic and Smoking Characteristics

A baseline survey assessed demographic variables (age, gender, race/ethnicity, education), tobacco use (cigarettes smoked per day, time to first morning cigarette,12 other tobacco use, and prior quit attempts), intention to quit after discharge (ie,“What is your plan about smoking after you leave the hospital,” with the intent measured across four categorical response options), perceived importance of and confidence in quitting after discharge (five-point Likert scales ranging from “not at all” to “very”), and the presence of another smoker at home. Depression and anxiety symptoms were assessed using the Patient Health Questionnaire (PHQ-413). Alcohol use (AUDIT-C14) and past-year use of cocaine, stimulants, opioids, and marijuana were also measured. Health insurance, length of stay, and primary discharge diagnoses were abstracted from the medical record. Smoking-related disease categories were derived from the 2014 U.S. Surgeon General’s Report.1

Follow-up Assessment

Telephone surveys were administered by the research staff sixmonths after hospital discharge. Participants who reported past seven-day tobacco abstinence (ie, abstinence from tobacco for the past seven days reported at the 6-month call) were asked to provide a mailed saliva sample to assay for cotinine, a nicotine metabolite, to verify self-reported abstinence. Participants who reported nicotine replacement therapy use were asked to provide an in-person measurement of expired air carbon monoxide (CO) instead. Self-reported abstinence was biochemically verified if saliva cotinine was <10 ng/ml or if CO was <9 ppm.11

Outcomes

The dependent variable, consistent with the parent trial, was biochemically confirmed past seven-day tobacco abstinence at six-month follow-up. Nonrespondents and those failing to provide a sample for confirmation were considered as smokers. In addition, a sensitivity analysis used complete cases only, excluding cases with missing smoking status outcomes.

 

 

Analysis

Bivariate associations of baseline predictor variables and biochemically confirmed abstinence were examined using chi-square tests for categorical variables and t tests or Wilcoxon rank sum tests for continuous variables. Using multiple logistic regression analyses, we identified variables that were independently associated with confirmed abstinence. The final models included all factors that were associated with cessation in the bivariate analysis (P < .10), factors associated with abstinence in the literature regardless of statistical significance (gender, AUDIT-C score),4 study site, and study condition. A two-sided p value of <.05 was considered to be statistically significant. Analyses were conducted using SAS version 9.4 (SAS Institute, Cary, NC).

RESULTS

Baseline characteristics of the 1,357 smokers enrolled in the trial are reported in Table 1. One-third of participants had a smoking-related discharge diagnosis. The median self-reported confidence in quitting was three on a five-point scale, and nearly half of the participants reported planning to stay abstinent after discharge. At six-month follow-up, 75% of participants completed the assessment, and seven-day tobacco abstinence was reported by 389 participants (29%) and biochemically confirmed in 218 participants (16%).

Results of the multiple logistic regression analysis predicting biochemically confirmed abstinence at six months are presented in Table 2. Factors independently associated with confirmed abstinence were a smoking-related primary discharge diagnosis (AOR = 1.98, 95% CI: 1.41-2.77), greater confidence in the ability to quit smoking (AOR = 1.31, 95% CI: 1.07-1.60), and stronger intention to quit (plan to stay abstinent after discharge vs. try to stay abstinent; AOR = 1.68, 95% CI: 1.19-2.38). Similar variables emerged as independent predictors of abstinence when the analysis was limited to complete cases, with an exception that one additional predictor, time to first cigarette after 30 minutes of waking, had statistical significance at the 0.05 level (Table 2).

DISCUSSION

We examined the associations between factors that were identifiable in the hospital and postdischarge tobacco abstinence among a general sample of hospitalized patients enrolled in a smoking cessation trial. The odds of biochemically confirmed abstinence at six months were higher among participants who reported higher levels of confidence in quitting smoking, those reporting having a definite plan to quit (vs. try to) after discharge, and those with a smoking-related primary discharge diagnosis.

Our findings are largely consistent with the prior literature on this topic, which has demonstrated that increased confidence in quitting, having a plan to quit smoking, and the presence of a smoking-related disease are associated with quit success at follow-up among hospital patients as well as in the general adult population.3-7 Our finding that nicotine dependence predicted quit success in the complete case analysis, but not when imputing smoking status, aligns with prior studies of hospitalized smokers, which have shown an inconclusive relationship between nicotine dependence and quit success.6,8 Despite a clear relationship of dependence to quit success among adult smokers, evidence in the hospital literature has been inconsistent. This inconsistency is likely due to the differing interventions across studies (eg, counseling vs. pharmacotherapy), the differing outcome variables (eg, self-report vs. biochemically verified), as well as the different patient populations selected to participate.

Unfortunately, smoking cessation is infrequently addressed in routine health care settings,15,16 highlighting a gap in care. For example, one survey study16 found that while many health care professionals report asking about smoking status and advising smokers to quit, fewer clinicians assess smokers’ interest or intention to stop smoking, assist with cessation, or arrange follow-up. Our results indicate that assessing an inpatient smoker’s intentions, motivation, and confidence for cessation and attempting to improve low levels of these factors could enhance cessation success. Because motivation is a malleable construct, repeated assessment by hospital clinicians of a patient’s motivation and confidence to quit is needed.

Our results also confirm that inpatient efforts to improve smoking cessation postdischarge should target smokers’ resolve to quit and confidence in the ability to succeed. Motivational interventions and cognitive-behavioral therapy are effective strategies that can resolve ambivalence and increase confidence to quit and should be components of brief interventions delivered in inpatient settings.17,18 Although individuals with a smoking-related illness may already possess some resolve to quit based on their illness, they may be candidates for interventions focused primarily on developing self-efficacy. Indeed, supporting self-efficacy is a major goal of effective bedside counseling and can be bolstered via problem-solving, motivational techniques, and education about pharmacotherapy during a tobacco-specific consult such as the one that these participants experienced. Armed with these resources, smokers with and without a smoking-related disease may be more likely to execute a plan to quit after discharge.

A study limitation is that our results can be generalized only to hospital inpatients who were willing to try to quit smoking after discharge, because the parent trial excluded smokers with lower levels of motivation. Similarly, these results may not be generalizable to obstetric or psychiatric inpatients, who were excluded from this trial.

In conclusion, our results underscore the importance of assessing motivation and self-efficacy in hospitalized smokers and targeting these factors in intervention efforts. Although future research should aim to identify better methods to alter these factors, in the short run, hospital clinicians could target these factors when discussing tobacco use with inpatient smokers.

 

 

Acknowledgments

The authors are grateful for the hard work of MGH, NSMC, and UPMC’s tobacco treatment services, the hospital providers, and study research staff.

Disclosures

Drs. Rigotti and Park received royalties from UpToDate and have received a research grant from Pfizer regarding smoking cessation. Dr. Rigotti has consulted (without pay) for Pfizer. Dr. Singer has served as a consultant to Pfizer but on a topic separate from smoking cessation. No other authors have conflicts of interest to disclose.
Role of Funding Source: The study was funded by NIH/NHLBI [grant #R01-HL11821]. The funding organization had no role in the study design, collection, analysis, and interpretation of the data, preparation of the manuscript, or decision to submit the manuscript for publication.

Clinical Trial Registration: NCT01714323

References

1. U.S. Department of Health and Human Services. The Health Consequences of Smoking—50 Years of Progress: A Report of the Surgeon General, 2014 | SurgeonGeneral.Gov. Office on Smoking and Health: Centers for Disease Control and Prevention; 2014:944. http://www.surgeongeneral.gov/library/reports/50-years-of-progress/index.html. Accessed May 22, 2016.
2. Rigotti NA, Clair C, Munafò MR, Stead LF. Interventions for smoking cessation in hospitalised patients. Cochrane Database Syst Rev. 2012;(5):CD001837. 10.1002/14651858.CD001837.pub3 PubMed
3. Vangeli E, Stapleton J, Smit ES, Borland R, West R. Predictors of attempts to stop smoking and their success in adult general population samples: a systematic review. Addict Abingdon Engl. 2011;106(12):2110-2121. 10.1111/j.1360-0443.2011.03565.x PubMed
4. Ockene JK, Emmons KM, Mermelstein RJ, et al. Relapse and maintenance issues for smoking cessation. Health Psychol. 2000;19(1S):17-31. 10.1037/0278-6133.19.Suppl1.17 PubMed
5. Harrington K, Young-Il K, Meifang C, et al. Web-based intervention for transitioning smokers from inpatient to outpatient care: an RCT. Am J Prev Med. 2016;51(4):620-629. 10.1016/j.amepre.2016.04.008 PubMed
6. Lando H, Hennrikus D, McCarty M, Vessey J. Predictors of quitting in hospitalized smokers. Nicotine Tob Res. 2003;5(2):215-222. 10.1080/0955300031000083436 PubMed
7. Hennrikus DJ, Lando HA, McCarty MC, et al. The TEAM project: the effectiveness of smoking cessation intervention with hospital patients. Prev Med. 2005;40(3):249-258. 10.1016/j.ypmed.2004.05.030 PubMed
8. MacKenzie TD, Pereira RI, Mehler PS. Smoking abstinence after hospitalization: predictors of success. Prev Med. 2004;39(6):1087-1092. 10.1016/j.ypmed.2004.04.054 PubMed
9. Holtrop JS, Stommel M, Corser W, Holmes-Rovner M. Predictors of smoking cessation and relapse after hospitalization for acute coronary syndrome. J Hosp Med. 2009;4(3):E3-E9. 10.1002/jhm.415 PubMed
10. Rigotti NA, Tindle HA, Regan S, et al. A post-discharge smoking-cessation intervention for hospital patients: helping Hand 2 randomized clinical trial. Am J Prev Med. 2016;51(4):597-608. 10.1016/j.amepre.2016.04.005 PubMed
11. Reid ZZ, Regan S, Kelley JHK, et al. Comparative effectiveness of post-discharge strategies for hospitalized smokers: study protocol for the helping HAND 2 randomized controlled trial. BMC Public Health. 2015;15:109. 10.1186/s12889-015-1484-0 PubMed
12. Heatherton TF, Kozlowski LT, Frecker RC, Rickert W, Robinson J. Measuring the heaviness of smoking: using self-reported time to the first cigarette of the day and number of cigarettes smoked per day. Br J Addict. 1989;84(7):791-799. http://dx.doi.org/10.1111/j.1360-0443.1989.tb03059.x PubMed
13. Melchior LA, Huba GJ, Brown VB, Reback CJ. A short depression index for women. Educ Psychol Meas. 1993;53(4):1117-1125. 10.1177/0013164493053004024 
14. Bush K, Kivlahan DR, McDonell MB, Fihn SD, Bradley KA. The AUDIT alcohol consumption questions (AUDIT-C): an effective brief screening test for problem drinking. Ambulatory Care Quality Improvement Project (ACQUIP). Alcohol Use Disorders Identification Test. Arch Intern Med. 1998;158(16):1789-1795. 10.1001/archinte.158.16.1789 PubMed
15. Kruger J, Shaw L, Kahende J, Frank E. Health care providers’ advice to quit smoking, National Health Interview Survey, 2000, 2005, and 2010. Prev Chronic Dis. 2012;9:E130. 10.5888/pcd9.110340 PubMed
16. Tong EK, Strouse R, Hall J, Kovac M, Schroeder SA. National survey of U.S. health professionals’ smoking prevalence, cessation practices, and beliefs. Nicotine Tob Res. 2010;12(7):724-733. 10.1093/ntr/ntq071 PubMed
17. Lindson-Hawley N, Thompson TP, Begh R. Motivational interviewing for smoking cessation. Cochrane Database Syst Rev. 2015;(3):CD006936. 10.1002/14651858.CD006936.pub3 PubMed
18. Hendricks PS, Delucchi KL, Hall SM. Mechanisms of change in extended cognitive behavioral treatment for tobacco dependence. Drug Alcohol Depend. 2010;109(1-3):114-119. 10.1016/j.drugalcdep.2009.12.021 PubMed

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Cigarette smoking is the leading cause of preventable deaths in the United States.1 Smoking contributes to several health problems that require hospitalization. Hospitalization also offers smokers an opportunity to quit because hospital policies prohibit smoking indoors while a health threat increases the motivation to quit.2 Brief bedside smoking cessation counseling with follow-up contact after discharge increases postdischarge tobacco abstinence rates by 37%.2 Identifying the characteristics of patients who are most likely to stop smoking after hospital discharge could identify strategies for interventions to help more smokers to succeed. It could also guide hospital clinicians’ efforts to provide effective brief messages to promote cessation by inpatients under their care during this teachable moment.

Sociodemographic factors, tobacco use, and psychological and medical factors have been associated with successful quit attempts by smokers in the general population.3,4 Far less is known about the predictors of success in quitting smoking and maintaining abstinence after hospitalization. The characteristics associated with abstinence at postdischarge follow-up in prior studies of hospitalized smokers were male gender, greater confidence in quitting, greater readiness to quit, less nicotine dependence, and having a smoking-related illness.5-8 However, most of the prior studies were limited to 1 geographic region,5,6 focused only on a specific subgroup (eg, coronary patients9), or did not biochemically verify tobacco abstinence.8 In fact, to our knowledge, only one prior study has examined the predictors of quitting among a broad sample of hospital patients enrolled across multiple hospitals and biochemically verified abstinence.6 That study was conducted nearly two decades ago in one Midwestern state.

Thus, the present study aimed to identify factors independently associated with sustained postdischarge tobacco abstinence among hospitalized smokers who planned to quit smoking.10 Building on previous work, this study includes a large number of smokers with varied diagnoses admitted to one of three hospitals in two states, uses biochemically verified abstinence as the outcome measure, and examines multiple variables that were identified during the inpatient stay. We hypothesize that consistent with prior literature on this topic, factors independently associated with cessation in the present study will include confidence and intention to quit, degree of nicotine dependence, and a discharge diagnosis of a smoking-related disease.

 

 

METHODS

We analyzed data from the Helping HAND2 Trial (HH2; NCT01714323), a randomized clinical trial conducted at the following three hospitals: Massachusetts General Hospital (MGH) in Boston, MA; University of Pittsburgh Medical Center (UPMC) in Pittsburgh, PA; and North Shore Medical Center (NSMC) in Salem, MA. Enrollment occurred from December 2012 to July 2014. The study methodology has been reported elsewhere.11 This study was approved by the Institutional Review Boards of Partners HealthCare and University of Pittsburgh.

PARTICIPANTS

Hospital inpatients were eligible for enrollment if they were

  • >18 years old, daily smokers, received smoking cessation counseling in the hospital (ie, standard of care for inpatient smokers), and planned to quit or try to quit smoking after discharge. Exclusion criteria included no access to a telephone, not speaking English, psychiatric or cognitive impairment, medical instability, or admission to obstetric or psychiatric units. All participants were offered nicotine replacement and one counseling session by a tobacco treatment specialist during hospitalization.

STUDY CONDITIONS

Participants were enrolled before discharge and randomly assigned to Sustained Care (Intervention) or Standard Care (Control) conditions.10,11 In the Standard Care condition, participants received advice to call a free telephone quit line and a tailored recommendation for postdischarge pharmacotherapy. Participants randomized to Sustained Care received a free 30-day supply of their choice of FDA-approved tobacco cessation pharmacotherapy at hospital discharge (refillable twice) and five automated interactive voice response calls over three months postdischarge to allow them to access counseling or refill medications.

MEASURES

Baseline Demographic and Smoking Characteristics

A baseline survey assessed demographic variables (age, gender, race/ethnicity, education), tobacco use (cigarettes smoked per day, time to first morning cigarette,12 other tobacco use, and prior quit attempts), intention to quit after discharge (ie,“What is your plan about smoking after you leave the hospital,” with the intent measured across four categorical response options), perceived importance of and confidence in quitting after discharge (five-point Likert scales ranging from “not at all” to “very”), and the presence of another smoker at home. Depression and anxiety symptoms were assessed using the Patient Health Questionnaire (PHQ-413). Alcohol use (AUDIT-C14) and past-year use of cocaine, stimulants, opioids, and marijuana were also measured. Health insurance, length of stay, and primary discharge diagnoses were abstracted from the medical record. Smoking-related disease categories were derived from the 2014 U.S. Surgeon General’s Report.1

Follow-up Assessment

Telephone surveys were administered by the research staff sixmonths after hospital discharge. Participants who reported past seven-day tobacco abstinence (ie, abstinence from tobacco for the past seven days reported at the 6-month call) were asked to provide a mailed saliva sample to assay for cotinine, a nicotine metabolite, to verify self-reported abstinence. Participants who reported nicotine replacement therapy use were asked to provide an in-person measurement of expired air carbon monoxide (CO) instead. Self-reported abstinence was biochemically verified if saliva cotinine was <10 ng/ml or if CO was <9 ppm.11

Outcomes

The dependent variable, consistent with the parent trial, was biochemically confirmed past seven-day tobacco abstinence at six-month follow-up. Nonrespondents and those failing to provide a sample for confirmation were considered as smokers. In addition, a sensitivity analysis used complete cases only, excluding cases with missing smoking status outcomes.

 

 

Analysis

Bivariate associations of baseline predictor variables and biochemically confirmed abstinence were examined using chi-square tests for categorical variables and t tests or Wilcoxon rank sum tests for continuous variables. Using multiple logistic regression analyses, we identified variables that were independently associated with confirmed abstinence. The final models included all factors that were associated with cessation in the bivariate analysis (P < .10), factors associated with abstinence in the literature regardless of statistical significance (gender, AUDIT-C score),4 study site, and study condition. A two-sided p value of <.05 was considered to be statistically significant. Analyses were conducted using SAS version 9.4 (SAS Institute, Cary, NC).

RESULTS

Baseline characteristics of the 1,357 smokers enrolled in the trial are reported in Table 1. One-third of participants had a smoking-related discharge diagnosis. The median self-reported confidence in quitting was three on a five-point scale, and nearly half of the participants reported planning to stay abstinent after discharge. At six-month follow-up, 75% of participants completed the assessment, and seven-day tobacco abstinence was reported by 389 participants (29%) and biochemically confirmed in 218 participants (16%).

Results of the multiple logistic regression analysis predicting biochemically confirmed abstinence at six months are presented in Table 2. Factors independently associated with confirmed abstinence were a smoking-related primary discharge diagnosis (AOR = 1.98, 95% CI: 1.41-2.77), greater confidence in the ability to quit smoking (AOR = 1.31, 95% CI: 1.07-1.60), and stronger intention to quit (plan to stay abstinent after discharge vs. try to stay abstinent; AOR = 1.68, 95% CI: 1.19-2.38). Similar variables emerged as independent predictors of abstinence when the analysis was limited to complete cases, with an exception that one additional predictor, time to first cigarette after 30 minutes of waking, had statistical significance at the 0.05 level (Table 2).

DISCUSSION

We examined the associations between factors that were identifiable in the hospital and postdischarge tobacco abstinence among a general sample of hospitalized patients enrolled in a smoking cessation trial. The odds of biochemically confirmed abstinence at six months were higher among participants who reported higher levels of confidence in quitting smoking, those reporting having a definite plan to quit (vs. try to) after discharge, and those with a smoking-related primary discharge diagnosis.

Our findings are largely consistent with the prior literature on this topic, which has demonstrated that increased confidence in quitting, having a plan to quit smoking, and the presence of a smoking-related disease are associated with quit success at follow-up among hospital patients as well as in the general adult population.3-7 Our finding that nicotine dependence predicted quit success in the complete case analysis, but not when imputing smoking status, aligns with prior studies of hospitalized smokers, which have shown an inconclusive relationship between nicotine dependence and quit success.6,8 Despite a clear relationship of dependence to quit success among adult smokers, evidence in the hospital literature has been inconsistent. This inconsistency is likely due to the differing interventions across studies (eg, counseling vs. pharmacotherapy), the differing outcome variables (eg, self-report vs. biochemically verified), as well as the different patient populations selected to participate.

Unfortunately, smoking cessation is infrequently addressed in routine health care settings,15,16 highlighting a gap in care. For example, one survey study16 found that while many health care professionals report asking about smoking status and advising smokers to quit, fewer clinicians assess smokers’ interest or intention to stop smoking, assist with cessation, or arrange follow-up. Our results indicate that assessing an inpatient smoker’s intentions, motivation, and confidence for cessation and attempting to improve low levels of these factors could enhance cessation success. Because motivation is a malleable construct, repeated assessment by hospital clinicians of a patient’s motivation and confidence to quit is needed.

Our results also confirm that inpatient efforts to improve smoking cessation postdischarge should target smokers’ resolve to quit and confidence in the ability to succeed. Motivational interventions and cognitive-behavioral therapy are effective strategies that can resolve ambivalence and increase confidence to quit and should be components of brief interventions delivered in inpatient settings.17,18 Although individuals with a smoking-related illness may already possess some resolve to quit based on their illness, they may be candidates for interventions focused primarily on developing self-efficacy. Indeed, supporting self-efficacy is a major goal of effective bedside counseling and can be bolstered via problem-solving, motivational techniques, and education about pharmacotherapy during a tobacco-specific consult such as the one that these participants experienced. Armed with these resources, smokers with and without a smoking-related disease may be more likely to execute a plan to quit after discharge.

A study limitation is that our results can be generalized only to hospital inpatients who were willing to try to quit smoking after discharge, because the parent trial excluded smokers with lower levels of motivation. Similarly, these results may not be generalizable to obstetric or psychiatric inpatients, who were excluded from this trial.

In conclusion, our results underscore the importance of assessing motivation and self-efficacy in hospitalized smokers and targeting these factors in intervention efforts. Although future research should aim to identify better methods to alter these factors, in the short run, hospital clinicians could target these factors when discussing tobacco use with inpatient smokers.

 

 

Acknowledgments

The authors are grateful for the hard work of MGH, NSMC, and UPMC’s tobacco treatment services, the hospital providers, and study research staff.

Disclosures

Drs. Rigotti and Park received royalties from UpToDate and have received a research grant from Pfizer regarding smoking cessation. Dr. Rigotti has consulted (without pay) for Pfizer. Dr. Singer has served as a consultant to Pfizer but on a topic separate from smoking cessation. No other authors have conflicts of interest to disclose.
Role of Funding Source: The study was funded by NIH/NHLBI [grant #R01-HL11821]. The funding organization had no role in the study design, collection, analysis, and interpretation of the data, preparation of the manuscript, or decision to submit the manuscript for publication.

Clinical Trial Registration: NCT01714323

Cigarette smoking is the leading cause of preventable deaths in the United States.1 Smoking contributes to several health problems that require hospitalization. Hospitalization also offers smokers an opportunity to quit because hospital policies prohibit smoking indoors while a health threat increases the motivation to quit.2 Brief bedside smoking cessation counseling with follow-up contact after discharge increases postdischarge tobacco abstinence rates by 37%.2 Identifying the characteristics of patients who are most likely to stop smoking after hospital discharge could identify strategies for interventions to help more smokers to succeed. It could also guide hospital clinicians’ efforts to provide effective brief messages to promote cessation by inpatients under their care during this teachable moment.

Sociodemographic factors, tobacco use, and psychological and medical factors have been associated with successful quit attempts by smokers in the general population.3,4 Far less is known about the predictors of success in quitting smoking and maintaining abstinence after hospitalization. The characteristics associated with abstinence at postdischarge follow-up in prior studies of hospitalized smokers were male gender, greater confidence in quitting, greater readiness to quit, less nicotine dependence, and having a smoking-related illness.5-8 However, most of the prior studies were limited to 1 geographic region,5,6 focused only on a specific subgroup (eg, coronary patients9), or did not biochemically verify tobacco abstinence.8 In fact, to our knowledge, only one prior study has examined the predictors of quitting among a broad sample of hospital patients enrolled across multiple hospitals and biochemically verified abstinence.6 That study was conducted nearly two decades ago in one Midwestern state.

Thus, the present study aimed to identify factors independently associated with sustained postdischarge tobacco abstinence among hospitalized smokers who planned to quit smoking.10 Building on previous work, this study includes a large number of smokers with varied diagnoses admitted to one of three hospitals in two states, uses biochemically verified abstinence as the outcome measure, and examines multiple variables that were identified during the inpatient stay. We hypothesize that consistent with prior literature on this topic, factors independently associated with cessation in the present study will include confidence and intention to quit, degree of nicotine dependence, and a discharge diagnosis of a smoking-related disease.

 

 

METHODS

We analyzed data from the Helping HAND2 Trial (HH2; NCT01714323), a randomized clinical trial conducted at the following three hospitals: Massachusetts General Hospital (MGH) in Boston, MA; University of Pittsburgh Medical Center (UPMC) in Pittsburgh, PA; and North Shore Medical Center (NSMC) in Salem, MA. Enrollment occurred from December 2012 to July 2014. The study methodology has been reported elsewhere.11 This study was approved by the Institutional Review Boards of Partners HealthCare and University of Pittsburgh.

PARTICIPANTS

Hospital inpatients were eligible for enrollment if they were

  • >18 years old, daily smokers, received smoking cessation counseling in the hospital (ie, standard of care for inpatient smokers), and planned to quit or try to quit smoking after discharge. Exclusion criteria included no access to a telephone, not speaking English, psychiatric or cognitive impairment, medical instability, or admission to obstetric or psychiatric units. All participants were offered nicotine replacement and one counseling session by a tobacco treatment specialist during hospitalization.

STUDY CONDITIONS

Participants were enrolled before discharge and randomly assigned to Sustained Care (Intervention) or Standard Care (Control) conditions.10,11 In the Standard Care condition, participants received advice to call a free telephone quit line and a tailored recommendation for postdischarge pharmacotherapy. Participants randomized to Sustained Care received a free 30-day supply of their choice of FDA-approved tobacco cessation pharmacotherapy at hospital discharge (refillable twice) and five automated interactive voice response calls over three months postdischarge to allow them to access counseling or refill medications.

MEASURES

Baseline Demographic and Smoking Characteristics

A baseline survey assessed demographic variables (age, gender, race/ethnicity, education), tobacco use (cigarettes smoked per day, time to first morning cigarette,12 other tobacco use, and prior quit attempts), intention to quit after discharge (ie,“What is your plan about smoking after you leave the hospital,” with the intent measured across four categorical response options), perceived importance of and confidence in quitting after discharge (five-point Likert scales ranging from “not at all” to “very”), and the presence of another smoker at home. Depression and anxiety symptoms were assessed using the Patient Health Questionnaire (PHQ-413). Alcohol use (AUDIT-C14) and past-year use of cocaine, stimulants, opioids, and marijuana were also measured. Health insurance, length of stay, and primary discharge diagnoses were abstracted from the medical record. Smoking-related disease categories were derived from the 2014 U.S. Surgeon General’s Report.1

Follow-up Assessment

Telephone surveys were administered by the research staff sixmonths after hospital discharge. Participants who reported past seven-day tobacco abstinence (ie, abstinence from tobacco for the past seven days reported at the 6-month call) were asked to provide a mailed saliva sample to assay for cotinine, a nicotine metabolite, to verify self-reported abstinence. Participants who reported nicotine replacement therapy use were asked to provide an in-person measurement of expired air carbon monoxide (CO) instead. Self-reported abstinence was biochemically verified if saliva cotinine was <10 ng/ml or if CO was <9 ppm.11

Outcomes

The dependent variable, consistent with the parent trial, was biochemically confirmed past seven-day tobacco abstinence at six-month follow-up. Nonrespondents and those failing to provide a sample for confirmation were considered as smokers. In addition, a sensitivity analysis used complete cases only, excluding cases with missing smoking status outcomes.

 

 

Analysis

Bivariate associations of baseline predictor variables and biochemically confirmed abstinence were examined using chi-square tests for categorical variables and t tests or Wilcoxon rank sum tests for continuous variables. Using multiple logistic regression analyses, we identified variables that were independently associated with confirmed abstinence. The final models included all factors that were associated with cessation in the bivariate analysis (P < .10), factors associated with abstinence in the literature regardless of statistical significance (gender, AUDIT-C score),4 study site, and study condition. A two-sided p value of <.05 was considered to be statistically significant. Analyses were conducted using SAS version 9.4 (SAS Institute, Cary, NC).

RESULTS

Baseline characteristics of the 1,357 smokers enrolled in the trial are reported in Table 1. One-third of participants had a smoking-related discharge diagnosis. The median self-reported confidence in quitting was three on a five-point scale, and nearly half of the participants reported planning to stay abstinent after discharge. At six-month follow-up, 75% of participants completed the assessment, and seven-day tobacco abstinence was reported by 389 participants (29%) and biochemically confirmed in 218 participants (16%).

Results of the multiple logistic regression analysis predicting biochemically confirmed abstinence at six months are presented in Table 2. Factors independently associated with confirmed abstinence were a smoking-related primary discharge diagnosis (AOR = 1.98, 95% CI: 1.41-2.77), greater confidence in the ability to quit smoking (AOR = 1.31, 95% CI: 1.07-1.60), and stronger intention to quit (plan to stay abstinent after discharge vs. try to stay abstinent; AOR = 1.68, 95% CI: 1.19-2.38). Similar variables emerged as independent predictors of abstinence when the analysis was limited to complete cases, with an exception that one additional predictor, time to first cigarette after 30 minutes of waking, had statistical significance at the 0.05 level (Table 2).

DISCUSSION

We examined the associations between factors that were identifiable in the hospital and postdischarge tobacco abstinence among a general sample of hospitalized patients enrolled in a smoking cessation trial. The odds of biochemically confirmed abstinence at six months were higher among participants who reported higher levels of confidence in quitting smoking, those reporting having a definite plan to quit (vs. try to) after discharge, and those with a smoking-related primary discharge diagnosis.

Our findings are largely consistent with the prior literature on this topic, which has demonstrated that increased confidence in quitting, having a plan to quit smoking, and the presence of a smoking-related disease are associated with quit success at follow-up among hospital patients as well as in the general adult population.3-7 Our finding that nicotine dependence predicted quit success in the complete case analysis, but not when imputing smoking status, aligns with prior studies of hospitalized smokers, which have shown an inconclusive relationship between nicotine dependence and quit success.6,8 Despite a clear relationship of dependence to quit success among adult smokers, evidence in the hospital literature has been inconsistent. This inconsistency is likely due to the differing interventions across studies (eg, counseling vs. pharmacotherapy), the differing outcome variables (eg, self-report vs. biochemically verified), as well as the different patient populations selected to participate.

Unfortunately, smoking cessation is infrequently addressed in routine health care settings,15,16 highlighting a gap in care. For example, one survey study16 found that while many health care professionals report asking about smoking status and advising smokers to quit, fewer clinicians assess smokers’ interest or intention to stop smoking, assist with cessation, or arrange follow-up. Our results indicate that assessing an inpatient smoker’s intentions, motivation, and confidence for cessation and attempting to improve low levels of these factors could enhance cessation success. Because motivation is a malleable construct, repeated assessment by hospital clinicians of a patient’s motivation and confidence to quit is needed.

Our results also confirm that inpatient efforts to improve smoking cessation postdischarge should target smokers’ resolve to quit and confidence in the ability to succeed. Motivational interventions and cognitive-behavioral therapy are effective strategies that can resolve ambivalence and increase confidence to quit and should be components of brief interventions delivered in inpatient settings.17,18 Although individuals with a smoking-related illness may already possess some resolve to quit based on their illness, they may be candidates for interventions focused primarily on developing self-efficacy. Indeed, supporting self-efficacy is a major goal of effective bedside counseling and can be bolstered via problem-solving, motivational techniques, and education about pharmacotherapy during a tobacco-specific consult such as the one that these participants experienced. Armed with these resources, smokers with and without a smoking-related disease may be more likely to execute a plan to quit after discharge.

A study limitation is that our results can be generalized only to hospital inpatients who were willing to try to quit smoking after discharge, because the parent trial excluded smokers with lower levels of motivation. Similarly, these results may not be generalizable to obstetric or psychiatric inpatients, who were excluded from this trial.

In conclusion, our results underscore the importance of assessing motivation and self-efficacy in hospitalized smokers and targeting these factors in intervention efforts. Although future research should aim to identify better methods to alter these factors, in the short run, hospital clinicians could target these factors when discussing tobacco use with inpatient smokers.

 

 

Acknowledgments

The authors are grateful for the hard work of MGH, NSMC, and UPMC’s tobacco treatment services, the hospital providers, and study research staff.

Disclosures

Drs. Rigotti and Park received royalties from UpToDate and have received a research grant from Pfizer regarding smoking cessation. Dr. Rigotti has consulted (without pay) for Pfizer. Dr. Singer has served as a consultant to Pfizer but on a topic separate from smoking cessation. No other authors have conflicts of interest to disclose.
Role of Funding Source: The study was funded by NIH/NHLBI [grant #R01-HL11821]. The funding organization had no role in the study design, collection, analysis, and interpretation of the data, preparation of the manuscript, or decision to submit the manuscript for publication.

Clinical Trial Registration: NCT01714323

References

1. U.S. Department of Health and Human Services. The Health Consequences of Smoking—50 Years of Progress: A Report of the Surgeon General, 2014 | SurgeonGeneral.Gov. Office on Smoking and Health: Centers for Disease Control and Prevention; 2014:944. http://www.surgeongeneral.gov/library/reports/50-years-of-progress/index.html. Accessed May 22, 2016.
2. Rigotti NA, Clair C, Munafò MR, Stead LF. Interventions for smoking cessation in hospitalised patients. Cochrane Database Syst Rev. 2012;(5):CD001837. 10.1002/14651858.CD001837.pub3 PubMed
3. Vangeli E, Stapleton J, Smit ES, Borland R, West R. Predictors of attempts to stop smoking and their success in adult general population samples: a systematic review. Addict Abingdon Engl. 2011;106(12):2110-2121. 10.1111/j.1360-0443.2011.03565.x PubMed
4. Ockene JK, Emmons KM, Mermelstein RJ, et al. Relapse and maintenance issues for smoking cessation. Health Psychol. 2000;19(1S):17-31. 10.1037/0278-6133.19.Suppl1.17 PubMed
5. Harrington K, Young-Il K, Meifang C, et al. Web-based intervention for transitioning smokers from inpatient to outpatient care: an RCT. Am J Prev Med. 2016;51(4):620-629. 10.1016/j.amepre.2016.04.008 PubMed
6. Lando H, Hennrikus D, McCarty M, Vessey J. Predictors of quitting in hospitalized smokers. Nicotine Tob Res. 2003;5(2):215-222. 10.1080/0955300031000083436 PubMed
7. Hennrikus DJ, Lando HA, McCarty MC, et al. The TEAM project: the effectiveness of smoking cessation intervention with hospital patients. Prev Med. 2005;40(3):249-258. 10.1016/j.ypmed.2004.05.030 PubMed
8. MacKenzie TD, Pereira RI, Mehler PS. Smoking abstinence after hospitalization: predictors of success. Prev Med. 2004;39(6):1087-1092. 10.1016/j.ypmed.2004.04.054 PubMed
9. Holtrop JS, Stommel M, Corser W, Holmes-Rovner M. Predictors of smoking cessation and relapse after hospitalization for acute coronary syndrome. J Hosp Med. 2009;4(3):E3-E9. 10.1002/jhm.415 PubMed
10. Rigotti NA, Tindle HA, Regan S, et al. A post-discharge smoking-cessation intervention for hospital patients: helping Hand 2 randomized clinical trial. Am J Prev Med. 2016;51(4):597-608. 10.1016/j.amepre.2016.04.005 PubMed
11. Reid ZZ, Regan S, Kelley JHK, et al. Comparative effectiveness of post-discharge strategies for hospitalized smokers: study protocol for the helping HAND 2 randomized controlled trial. BMC Public Health. 2015;15:109. 10.1186/s12889-015-1484-0 PubMed
12. Heatherton TF, Kozlowski LT, Frecker RC, Rickert W, Robinson J. Measuring the heaviness of smoking: using self-reported time to the first cigarette of the day and number of cigarettes smoked per day. Br J Addict. 1989;84(7):791-799. http://dx.doi.org/10.1111/j.1360-0443.1989.tb03059.x PubMed
13. Melchior LA, Huba GJ, Brown VB, Reback CJ. A short depression index for women. Educ Psychol Meas. 1993;53(4):1117-1125. 10.1177/0013164493053004024 
14. Bush K, Kivlahan DR, McDonell MB, Fihn SD, Bradley KA. The AUDIT alcohol consumption questions (AUDIT-C): an effective brief screening test for problem drinking. Ambulatory Care Quality Improvement Project (ACQUIP). Alcohol Use Disorders Identification Test. Arch Intern Med. 1998;158(16):1789-1795. 10.1001/archinte.158.16.1789 PubMed
15. Kruger J, Shaw L, Kahende J, Frank E. Health care providers’ advice to quit smoking, National Health Interview Survey, 2000, 2005, and 2010. Prev Chronic Dis. 2012;9:E130. 10.5888/pcd9.110340 PubMed
16. Tong EK, Strouse R, Hall J, Kovac M, Schroeder SA. National survey of U.S. health professionals’ smoking prevalence, cessation practices, and beliefs. Nicotine Tob Res. 2010;12(7):724-733. 10.1093/ntr/ntq071 PubMed
17. Lindson-Hawley N, Thompson TP, Begh R. Motivational interviewing for smoking cessation. Cochrane Database Syst Rev. 2015;(3):CD006936. 10.1002/14651858.CD006936.pub3 PubMed
18. Hendricks PS, Delucchi KL, Hall SM. Mechanisms of change in extended cognitive behavioral treatment for tobacco dependence. Drug Alcohol Depend. 2010;109(1-3):114-119. 10.1016/j.drugalcdep.2009.12.021 PubMed

References

1. U.S. Department of Health and Human Services. The Health Consequences of Smoking—50 Years of Progress: A Report of the Surgeon General, 2014 | SurgeonGeneral.Gov. Office on Smoking and Health: Centers for Disease Control and Prevention; 2014:944. http://www.surgeongeneral.gov/library/reports/50-years-of-progress/index.html. Accessed May 22, 2016.
2. Rigotti NA, Clair C, Munafò MR, Stead LF. Interventions for smoking cessation in hospitalised patients. Cochrane Database Syst Rev. 2012;(5):CD001837. 10.1002/14651858.CD001837.pub3 PubMed
3. Vangeli E, Stapleton J, Smit ES, Borland R, West R. Predictors of attempts to stop smoking and their success in adult general population samples: a systematic review. Addict Abingdon Engl. 2011;106(12):2110-2121. 10.1111/j.1360-0443.2011.03565.x PubMed
4. Ockene JK, Emmons KM, Mermelstein RJ, et al. Relapse and maintenance issues for smoking cessation. Health Psychol. 2000;19(1S):17-31. 10.1037/0278-6133.19.Suppl1.17 PubMed
5. Harrington K, Young-Il K, Meifang C, et al. Web-based intervention for transitioning smokers from inpatient to outpatient care: an RCT. Am J Prev Med. 2016;51(4):620-629. 10.1016/j.amepre.2016.04.008 PubMed
6. Lando H, Hennrikus D, McCarty M, Vessey J. Predictors of quitting in hospitalized smokers. Nicotine Tob Res. 2003;5(2):215-222. 10.1080/0955300031000083436 PubMed
7. Hennrikus DJ, Lando HA, McCarty MC, et al. The TEAM project: the effectiveness of smoking cessation intervention with hospital patients. Prev Med. 2005;40(3):249-258. 10.1016/j.ypmed.2004.05.030 PubMed
8. MacKenzie TD, Pereira RI, Mehler PS. Smoking abstinence after hospitalization: predictors of success. Prev Med. 2004;39(6):1087-1092. 10.1016/j.ypmed.2004.04.054 PubMed
9. Holtrop JS, Stommel M, Corser W, Holmes-Rovner M. Predictors of smoking cessation and relapse after hospitalization for acute coronary syndrome. J Hosp Med. 2009;4(3):E3-E9. 10.1002/jhm.415 PubMed
10. Rigotti NA, Tindle HA, Regan S, et al. A post-discharge smoking-cessation intervention for hospital patients: helping Hand 2 randomized clinical trial. Am J Prev Med. 2016;51(4):597-608. 10.1016/j.amepre.2016.04.005 PubMed
11. Reid ZZ, Regan S, Kelley JHK, et al. Comparative effectiveness of post-discharge strategies for hospitalized smokers: study protocol for the helping HAND 2 randomized controlled trial. BMC Public Health. 2015;15:109. 10.1186/s12889-015-1484-0 PubMed
12. Heatherton TF, Kozlowski LT, Frecker RC, Rickert W, Robinson J. Measuring the heaviness of smoking: using self-reported time to the first cigarette of the day and number of cigarettes smoked per day. Br J Addict. 1989;84(7):791-799. http://dx.doi.org/10.1111/j.1360-0443.1989.tb03059.x PubMed
13. Melchior LA, Huba GJ, Brown VB, Reback CJ. A short depression index for women. Educ Psychol Meas. 1993;53(4):1117-1125. 10.1177/0013164493053004024 
14. Bush K, Kivlahan DR, McDonell MB, Fihn SD, Bradley KA. The AUDIT alcohol consumption questions (AUDIT-C): an effective brief screening test for problem drinking. Ambulatory Care Quality Improvement Project (ACQUIP). Alcohol Use Disorders Identification Test. Arch Intern Med. 1998;158(16):1789-1795. 10.1001/archinte.158.16.1789 PubMed
15. Kruger J, Shaw L, Kahende J, Frank E. Health care providers’ advice to quit smoking, National Health Interview Survey, 2000, 2005, and 2010. Prev Chronic Dis. 2012;9:E130. 10.5888/pcd9.110340 PubMed
16. Tong EK, Strouse R, Hall J, Kovac M, Schroeder SA. National survey of U.S. health professionals’ smoking prevalence, cessation practices, and beliefs. Nicotine Tob Res. 2010;12(7):724-733. 10.1093/ntr/ntq071 PubMed
17. Lindson-Hawley N, Thompson TP, Begh R. Motivational interviewing for smoking cessation. Cochrane Database Syst Rev. 2015;(3):CD006936. 10.1002/14651858.CD006936.pub3 PubMed
18. Hendricks PS, Delucchi KL, Hall SM. Mechanisms of change in extended cognitive behavioral treatment for tobacco dependence. Drug Alcohol Depend. 2010;109(1-3):114-119. 10.1016/j.drugalcdep.2009.12.021 PubMed

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Joanna Streck, BA, University of Vermont, 3100 C Old Hall, MS 482, 1 South Prospect Street, Burlington, VT 05405; Telephone: 802 656 1982; Fax: 802 656 5793; Email: [email protected]
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Limitations of Using Pediatric Respiratory Illness Readmissions to Compare Hospital Performance

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Respiratory illnesses are the leading causes of pediatric hospitalizations in the United States.1 The 30-day hospital readmission rate for respiratory illnesses is being considered for implementation as a national hospital performance measure, as it may be an indicator of lower quality care (eg, poor hospital management of disease, inadequate patient/caretaker education prior to discharge). In adult populations, readmissions can be used to reliably identify variation in hospital performance and successfully drive efforts to improve the value of care.2, 3 In contrast, there are persistent concerns about using pediatric readmissions to identify variation in hospital performance, largely due to lower patient volumes.4-7 To increase the value of pediatric hospital care, it is important to develop ways to meaningfully measure quality of care and further, to better understand the relationship between measures of quality and healthcare costs.

In December 2016, the National Quality Forum (NQF) endorsed a Pediatric Lower Respiratory Infection (LRI) Readmission Measure.8 This measure was developed by the Pediatric Quality Measurement Program, through the Agency for Healthcare Research and Quality. The goal of this program was to “increase the portfolio of evidence-based, consensus pediatric quality measures available to public and private purchasers of children’s healthcare services, providers, and consumers.”9

In anticipation of the national implementation of pediatric readmission measures, we examined whether the Pediatric LRI Readmission Measure could meaningfully identify high and low performers across all types of hospitals admitting children (general hospitals and children’s hospitals) using an all-payer claims database. A recent analysis by Nakamura et al. identified high and low performers using this measure10 but limited the analysis to hospitals with >50 pediatric LRI admissions per year, an approach that excludes many general hospitals. Since general hospitals provide the majority of care for children hospitalized with respiratory infections,11 we aimed to evaluate the measure in a broadly inclusive analysis that included all hospital types. Because low patient volumes might limit use of the measure,4,6 we tested several broadened variations of the measure. We also examined the relationship between hospital performance in pediatric LRI readmissions and healthcare costs.

Our analysis is intended to inform utilizers of pediatric quality metrics and policy makers about the feasibility of using these metrics to publicly report hospital performance and/or identify exceptional hospitals for understanding best practices in pediatric inpatient care.12

METHODS

Study Design and Data Source

We conducted an observational, retrospective cohort analysis using the 2012-2014 California Office of Statewide Health Planning and Development (OSHPD) nonpublic inpatient and emergency department databases.13 The OSHPD databases are compiled annually through mandatory reporting by all licensed nonfederal hospitals in California. The databases contain demographic (eg, age, gender) and utilization data (eg, charges) and can track readmissions to hospitals other than the index hospital. The databases capture administrative claims from approximately 450 hospitals, composed of 16 million inpatients, emergency department patients, and ambulatory surgery patients annually. Data quality is monitored through the California OSHPD.

 

 

Study Population

Our study included children aged ≤18 years with LRI, defined using the NQF Pediatric LRI Readmissions Measure: a primary diagnosis of bronchiolitis, influenza, or pneumonia, or a secondary diagnosis of bronchiolitis, influenza, or pneumonia, with a primary diagnosis of asthma, respiratory failure, sepsis, or bacteremia.8 International classification of Diseases, 9th edition (ICD-9) diagnostic codes used are in Appendix 1.

Per the NQF measure specifications,8 records were excluded if they were from hospitals with <80% of records complete with core elements (unique patient identifier, admission date, end-of-service date, and ICD-9 primary diagnosis code). In addition, records were excluded for the following reasons: (1) individual record missing core elements, (2) discharge disposition “death,” (3) 30-day follow-up data not available, (4) primary “newborn” or mental health diagnosis, or (5) primary ICD-9 procedure code for a planned procedure or chemotherapy.

Patient characteristics for hospital admissions with and without 30-day readmissions or 30-day emergency department (ED) revisits were summarized. For the continuous variable age, mean and standard deviation for each group were calculated. For categorical variables (sex, race, payer, and number of chronic conditions), numbers and proportions were determined. Univariate tests of comparison were carried out using the Student’s t test for age and chi-square tests for all categorical variables. Categories of payer with small values were combined for ease of description (categories combined into “other:” workers’ compensation, county indigent programs, other government, other indigent, self-pay, other payer). We identified chronic conditions using the Agency for Healthcare Research and Quality Chronic Condition Indicator (CCI) system, which classifies ICD-9-CM diagnosis codes as chronic or acute and places each code into 1 of 18 mutually exclusive categories (organ systems, disease categories, or other categories). The case-mix adjustment model incorporates a binary variable for each CCI category (0-1, 2, 3, or >4 chronic conditions) per the NQF measure specifications.8 This study was approved by the University of California, San Francisco Institutional Review Board.

Outcomes

Our primary outcome was the hospital-level rate of 30-day readmission after hospital discharge, consistent with the NQF measure.8 We identified outlier hospitals for 30-day readmission rate using the Centers for Medicare and Medicaid Services (CMS) methodology, which defines outlier hospitals as those for whom adjusted readmission rate confidence intervals do not overlap with the overall group mean rate.5, 14

We also determined the hospital-level average cost per index hospitalization (not including costs of readmissions). Since costs of care often differ substantially from charges,15 costs were calculated using cost-to-charge ratios for each hospital (annual total operating expenses/total gross patient revenue, as reported to the OSHPD).16 Costs were subdivided into categories representing $5,000 increments and a top category of >$40,000. Outlier hospitals for costs were defined as those for whom the cost random effect was either greater than the third quartile of the distribution of values by more than 1.5 times the interquartile range or less than the first quartile of the distribution of values by more than 1.5 times the interquartile range.17

ANALYSIS

Primary Analysis

 

 

For our primary analysis of 30-day hospital readmission rates, we used hierarchical logistic regression models with hospitals as random effects, adjusting for patient age, sex, and the presence and number of body systems affected by chronic conditions.8 These 4 patient characteristics were selected by the NQF measure developers “because distributions of these characteristics vary across hospitals, and although they are associated with readmission risk, they are independent of hospital quality of care.”10

Because the Centers for Medicare and Medicaid Services (CMS) are in the process of selecting pediatric quality measures for meaningful use reporting,18 we utilized CMS hospital readmissions methodology to calculate risk-adjusted rates and identify outlier hospitals. The CMS modeling strategy stabilizes performance estimates for low-volume hospitals and avoids penalizing these hospitals for high readmission rates that may be due to chance (random effects logistic model to obtain best linear unbiased predictions). This is particularly important in pediatrics, given the low pediatric volumes in many hospitals admitting children.4,19 We then identified outlier hospitals for the 30-day readmission rate using CMS methodology (hospital’s adjusted readmission rate confidence interval does not overlap the overall group mean rate).5, 4 CMS uses this approach for public reporting on HospitalCompare.20

Sensitivity Analyses

We tested several broadening variations of the NQF measure: (1) addition of children admitted with a primary diagnosis of asthma (without requiring LRI as a secondary diagnosis) or a secondary diagnosis of asthma exacerbation (LRIA), (2) inclusion of 30-day ED revisits as an outcome, and (3) merging of 3 years of data. These analyses were all performed using the same modeling strategy as in our primary analysis.

Secondary Outcome Analyses

Our analysis of hospital costs used costs for index admissions over 3 years (2012–2014) and included admissions for asthma. We used hierarchical regression models with hospitals as random effects, adjusting for age, gender, and the presence and number of chronic conditions. The distribution of cost values was highly skewed, so ordinal models were selected after several other modeling approaches failed (log transformation linear model, gamma model, Poisson model, zero-truncated Poisson model).

The relationship between hospital-level costs and hospital-level 30-day readmission or ED revisit rates was analyzed using Spearman’s rank correlation coefficient. Statistical analysis was performed using SAS version 9.4 software (SAS Institute; Cary, North Carolina).

RESULTS

Primary Analysis of 30-day Readmissions (per National Quality Forum Measure)

Our analysis of the 2014 OSHPD database using the specifications of the NQF Pediatric LRI Readmission Measure included a total of 5550 hospitalizations from 174 hospitals, with a mean of 12 eligible hospitalizations per hospital. The mean risk-adjusted readmission rate was 6.5% (362 readmissions). There were no hospitals that were considered outliers based on the risk-adjusted readmission rates (Table 1).

Sensitivity Analyses (Broadening Definitions of National Quality Forum Measure)

We report our testing of the broadened variations of the NQF measure in Table 1. Broadening the population to include children with asthma as a primary diagnosis and children with asthma exacerbations as a secondary diagnosis (LRIA) increased the size of our analysis to 8402 hospitalizations from 190 hospitals. The mean risk-adjusted readmission rate was 5.5%, and no outlier hospitals were identified.

 

 

Using the same inclusion criteria of the NQF measure but including 30-day ED revisits as an outcome, we analyzed a total of 5500 hospitalizations from 174 hospitals. The mean risk-adjusted event rate was higher at 7.9%, but there were still no outlier hospitals identified.

Using the broadened population definition (LRIA) and including 30-day ED revisits as an outcome, we analyzed a total of 8402 hospitalizations from 190 hospitals. The mean risk-adjusted event rate was 6.8%, but there were still no outlier hospitals identified.

In our final iteration, we merged 3 years of hospital data (2012-2014) using the broader population definition (LRIA) and including 30-day ED revisits as an outcome. This resulted in 27,873 admissions from 239 hospitals for this analysis, with a mean of 28 eligible hospitalizations per hospital. The mean risk-adjusted event rate was 6.7%, and this approach identified 2 high-performing (risk-adjusted rates: 3.6-5.3) and 7 low-performing hospitals (risk-adjusted rates: 10.1-15.9).

Table 2 presents the demographics of children included in this analysis. Children who had readmissions/revisits were younger, more likely to be white, less likely to have private insurance, and more likely to have a greater number of chronic conditions compared to children without readmissions/revisits.

Secondary Outcome: Hospital Costs

In the analysis of hospital-level costs, we found only 1 outlier high-cost hospital. There was a 20% probability of a hospital respiratory admission costing ≥$40,000 at this hospital. We found no overall relationship between hospital 30-day respiratory readmission rate and hospital costs (Figure 1). However, the hospitals that were outliers for low readmission rates also had low probabilities of excessive hospital costs (3% probability of costs >$40,000; Figure 2).

DISCUSSION

We used a nationally endorsed pediatric quality measure to evaluate hospital performance, defined as 30-day readmission rates for children with respiratory illness. We examined all-payer data from California, which is the most populous state in the country and home to 1 in 8 American children. In this large California dataset, we were unable to identify meaningful variation in hospital performance due to low hospital volumes and event rates. However, when we broadened the measure definition, we were able to identify performance variation. Our findings underscore the importance of testing and potentially modifying existing quality measures in order to more accurately capture the quality of care delivered at hospitals with lower volumes of pediatric patients.21

Prior analyses have raised similar concerns about the limitations of assessing condition-specific readmissions measures in inpatient pediatrics. Bardach et al. used 6 statewide databases to examine hospital rates of readmissions and ED revisits for common pediatric diagnoses. They identified few hospitals as high or low performers due to low hospital volumes.5 More recently, Nakamura et al. analyzed hospital performance using the same NQF Pediatric LRI Readmission Measure we evaluated. They used the Medicaid Analytic eXtract dataset from 26 states. They identified 7 outlier hospitals (of 338), but only when restricting their analysis to hospitals with >50 LRI admissions per year.10 Of note, if our assessment using this quality measure was limited to only those California hospitals with >50 pediatric LRI admissions/year, 83% of California hospitals would have been excluded from performance assessment.

Our underlying assumption, in light of these prior studies, was that increasing the eligible sample in each hospital by combining respiratory diseases and by using an all-payer claims database rather than a Medicaid-only database would increase the number of detectable outlier hospitals. However, we found that these approaches did not ameliorate the limitations of small volumes. Only through aggregating data over 3 years was it possible to identify any outliers, and this approach identified only 3% of hospitals as outliers. Hence, our analysis reinforces concerns raised by several prior analyses4-7 regarding the limited ability of current pediatric readmission measures to detect meaningful, actionable differences in performance across all types of hospitals (including general/nonchildren’s hospitals). This issue is of particular concern for common pediatric conditions like respiratory illnesses, for which >70% of hospitalizations occur in general hospitals.11

Developers and utilizers of pediatric quality metrics should consider strategies for identifying meaningful, actionable variation in pediatric quality of care at general hospitals. These strategies might include our approach of combining several years of hospital data in order to reach adequate volumes for measuring performance. The potential downside to this approach is performance lag—specifically, hospitals implementing quality improvement readmissions programs may not see changes in their performance for a year or two on a measure aggregating 3 years of data. Alternatively, it is possible that the measure might be used more appropriately across a larger group of hospitals, either to assess performance for multihospital accountable care organization (ACO), or to assess performance for a service area or county. An aggregated group of hospitals would increase the eligible patient volume and, if there is an ACO relationship established, coordinated interventions could be implemented across the hospitals.

We examined the 30-day readmission rate because it is the current standard used by CMS and all NQF-endorsed readmission measures.22,23 Another potential approach is to analyze the 7- or 15-day readmission rate. However, these rates may be similarly limited in identifying hospital performance due to low volumes and event rates. An analysis by Wallace et al. of preventable readmissions to a tertiary children’s hospital found that, while many occurred within 7 days or 15 days, 27% occurred after 7 days and 22%, after 15.24 However, an analysis of several adult 30-day readmission measures used by CMS found that the contribution of hospital-level quality to the readmission rate (measured by intracluster correlation coefficient) reached a nadir at 7 days, which suggests that most readmissions after the seventh day postdischarge were explained by community- and household-level factors beyond hospitals’ control.22 Hence, though 7- or 15-day readmission rates may better represent preventable outcomes under the hospital’s control, the lower event rates and low hospital volumes likely similarly limit the feasibility of their use for performance measurement.

Pediatric quality measures are additionally intended to drive improvements in the value of pediatric care, defined as quality relative to costs.25 In order to better understand the relationship of hospital performance across both the domains of readmissions (quality) and costs, we examined hospital-level costs for care of pediatric respiratory illnesses. We found no overall relationship between hospital readmission rates and costs; however, we found 2 hospitals in California that had significantly lower readmission rates as well as low costs. Close examination of hospitals such as these, which demonstrate exceptional performance in quality and costs, may promote the discovery and dissemination of strategies to improve the value of pediatric care.12

Our study had several limitations. First, the OSHPD database lacked detailed clinical variables to correct for additional case-mix differences between hospitals. However, we used the approach of case-mix adjustment outlined by an NQF-endorsed national quality metric.8 Secondly, since our data were limited to a single state, analyses of other databases may have yielded different results. However, prior analyses using other multistate databases reported similar limitations,5,6 likely due to the limitations of patient volume that are generalizable to settings outside of California. In addition, our cost analysis was performed using cost-to-charge ratios that represent total annual expenses/revenue for the whole hospital.16 These ratios may not be reflective of the specific services provided for children in our analysis; however, service-specific costs were not available, and cost-to-charge ratios are commonly used to report costs.

 

 

CONCLUSION

The ability of a nationally-endorsed pediatric respiratory readmissions measure to meaningfully identify variation in hospital performance is limited. General hospitals, which provide the majority of pediatric care for common conditions such as LRI, likely cannot be accurately evaluated using national pediatric quality metrics as they are currently designed. Modifying measures in order to increase hospital-level pediatric patient volumes may facilitate more meaningful evaluation of the quality of pediatric care in general hospitals and identification of exceptional hospitals for understanding best practices in pediatric inpatient care.

Disclosures

Regina Lam consulted for Proximity Health doing market research during the course of developing this manuscript, but this work did not involve any content related to quality metrics, and this entity did not play any role in the development of this manuscript. The remaining authors have no conflicts of interest relevant to this article to disclose.

Funding

Supported by the Agency for Healthcare Research and Quality (K08 HS24592 to SVK and U18HS25297 to MDC and NSB) and the National Institute of Child Health and Human Development (K23HD065836 to NSB). The funding agency played no role in the study design; the collection, analysis, and interpretation of data; the writing of the report; or the decision to submit the manuscript for publication.

 

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References

1. Agency for Healthcare Research and Quality. Overview of hospital stays for children in the United States. https://www.hcup-us.ahrq.gov/reports/statbriefs/sb187-Hospital-Stays-Children-2012.jsp. Accessed September 1, 2017; 2012. PubMed
2. Mendelson A, Kondo K, Damberg C, et al. The effects of pay-for-performance programs on health, health care use, and processes of care: A systematic review. Ann Intern Med. 2017;166(5):341-353. doi: 10.7326/M16-1881PubMed
3. Zuckerman RB, Sheingold SH, Orav EJ, Ruhter J, Epstein AM. Readmissions, observation, and the hospital readmissions reduction program. N Engl J Med. 2016;374(16):1543-1551. doi: 10.1056/NEJMsa1513024PubMed
4. Bardach NS, Chien AT, Dudley RA. Small numbers limit the use of the inpatient pediatric quality indicators for hospital comparison. Acad Pediatr. 2010;10(4):266-273. doi: 10.1016/j.acap.2010.04.025PubMed
5. Bardach NS, Vittinghoff E, Asteria-Peñaloza R, et al. Measuring hospital quality using pediatric readmission and revisit rates. Pediatrics. 2013;132(3):429-436. doi: 10.1542/peds.2012-3527PubMed
6. Berry JG, Zaslavsky AM, Toomey SL, et al. Recognizing differences in hospital quality performance for pediatric inpatient care. Pediatrics. 2015;136(2):251-262. doi: 10.1542/peds.2014-3131PubMed
7. Hain PD, Gay JC, Berutti TW, Whitney GM, Wang W, Saville BR. Preventability of early readmissions at a children’s hospital. Pediatrics. 2013;131(1):e171-e181. doi: 10.1542/peds.2012-0820PubMed
8. Agency for Healthcare Research and Quality. Pediatric lower respiratory infection readmission measure. https://www.ahrq.gov/sites/default/files/wysiwyg/policymakers/chipra/factsheets/chipra_1415-p008-2-ef.pdf. Accessed September 3, 2017. 
9. Agency for Healthcare Research and Quality. CHIPRA Pediatric Quality Measures Program. https://archive.ahrq.gov/policymakers/chipra/pqmpback.html. Accessed October 10, 2017. 
10. Nakamura MM, Zaslavsky AM, Toomey SL, et al. Pediatric readmissions After hospitalizations for lower respiratory infections. Pediatrics. 2017;140(2). doi: 10.1542/peds.2016-0938PubMed
11. Leyenaar JK, Ralston SL, Shieh MS, Pekow PS, Mangione-Smith R, Lindenauer PK. Epidemiology of pediatric hospitalizations at general hospitals and freestanding children’s hospitals in the United States. J Hosp Med. 2016;11(11):743-749. doi: 10.1002/jhm.2624PubMed
12. Bradley EH, Curry LA, Ramanadhan S, Rowe L, Nembhard IM, Krumholz HM. Research in action: using positive deviance to improve quality of health care. Implement Sci. 2009;4:25. doi: 10.1186/1748-5908-4-25PubMed
13. California Office of Statewide Health Planning and Development. Data and reports. https://www.oshpd.ca.gov/HID/. Accessed September 3, 2017. 
14. QualityNet. Measure methodology reports. https://www.qualitynet.org/dcs/ContentServer?c=Page&pagename=QnetPublic%2FPage%2FQnetTier4&cid=1219069855841. Accessed October 10, 2017.
15. Riley GF. Administrative and claims records as sources of health care cost data. Med Care. 2009;47(7 Suppl 1):S51-S55. doi: 10.1097/MLR.0b013e31819c95aaPubMed
16. California Office of Statewide Health Planning and Development. Annual financial data. https://www.oshpd.ca.gov/HID/Hospital-Financial.asp. Accessed September 3, 2017.
17. Tukey J. Exploratory Data Analysis: Pearson; London, United Kingdom. 1977. 
18. Centers for Medicare and Medicaid Services. Core measures. https://www.cms.gov/Medicare/Quality-Initiatives-Patient-Assessment-Instruments/QualityMeasures/Core-Measures.html. Accessed September 1, 2017. 
19. Berry JG, Toomey SL, Zaslavsky AM, et al. Pediatric readmission prevalence and variability across hospitals. JAMA. 2013;309(4):372-380. doi: 10.1001/jama.2012.188351. PubMed
20. Centers for Medicare and Medicaid Services. HospitalCompare.  https://www.medicare.gov/hospitalcompare/search.html. Accessed on October 10, 2017. 
21. Mangione-Smith R. The challenges of addressing pediatric quality measurement gaps. Pediatrics. 2017;139(4). doi: 10.1542/peds.2017-0174PubMed
22. Chin DL, Bang H, Manickam RN, Romano PS. Rethinking thirty-day hospital readmissions: shorter intervals might be better indicators of quality of care. Health Aff (Millwood). 2016;35(10):1867-1875. doi: 10.1377/hlthaff.2016.0205PubMed
23. National Quality Forum. Measures, reports, and tools. http://www.qualityforum.org/Measures_Reports_Tools.aspx. Accessed March 1, 2018.
24. Wallace SS, Keller SL, Falco CN, et al. An examination of physician-, caregiver-, and disease-related factors associated With readmission From a pediatric hospital medicine service. Hosp Pediatr. 2015;5(11):566-573. doi: 10.1542/hpeds.2015-0015PubMed
25. Porter ME. What is value in health care? N Engl J Med. 2010;363(26):2477-2481. doi: 10.1056/NEJMp1011024. PubMed

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Respiratory illnesses are the leading causes of pediatric hospitalizations in the United States.1 The 30-day hospital readmission rate for respiratory illnesses is being considered for implementation as a national hospital performance measure, as it may be an indicator of lower quality care (eg, poor hospital management of disease, inadequate patient/caretaker education prior to discharge). In adult populations, readmissions can be used to reliably identify variation in hospital performance and successfully drive efforts to improve the value of care.2, 3 In contrast, there are persistent concerns about using pediatric readmissions to identify variation in hospital performance, largely due to lower patient volumes.4-7 To increase the value of pediatric hospital care, it is important to develop ways to meaningfully measure quality of care and further, to better understand the relationship between measures of quality and healthcare costs.

In December 2016, the National Quality Forum (NQF) endorsed a Pediatric Lower Respiratory Infection (LRI) Readmission Measure.8 This measure was developed by the Pediatric Quality Measurement Program, through the Agency for Healthcare Research and Quality. The goal of this program was to “increase the portfolio of evidence-based, consensus pediatric quality measures available to public and private purchasers of children’s healthcare services, providers, and consumers.”9

In anticipation of the national implementation of pediatric readmission measures, we examined whether the Pediatric LRI Readmission Measure could meaningfully identify high and low performers across all types of hospitals admitting children (general hospitals and children’s hospitals) using an all-payer claims database. A recent analysis by Nakamura et al. identified high and low performers using this measure10 but limited the analysis to hospitals with >50 pediatric LRI admissions per year, an approach that excludes many general hospitals. Since general hospitals provide the majority of care for children hospitalized with respiratory infections,11 we aimed to evaluate the measure in a broadly inclusive analysis that included all hospital types. Because low patient volumes might limit use of the measure,4,6 we tested several broadened variations of the measure. We also examined the relationship between hospital performance in pediatric LRI readmissions and healthcare costs.

Our analysis is intended to inform utilizers of pediatric quality metrics and policy makers about the feasibility of using these metrics to publicly report hospital performance and/or identify exceptional hospitals for understanding best practices in pediatric inpatient care.12

METHODS

Study Design and Data Source

We conducted an observational, retrospective cohort analysis using the 2012-2014 California Office of Statewide Health Planning and Development (OSHPD) nonpublic inpatient and emergency department databases.13 The OSHPD databases are compiled annually through mandatory reporting by all licensed nonfederal hospitals in California. The databases contain demographic (eg, age, gender) and utilization data (eg, charges) and can track readmissions to hospitals other than the index hospital. The databases capture administrative claims from approximately 450 hospitals, composed of 16 million inpatients, emergency department patients, and ambulatory surgery patients annually. Data quality is monitored through the California OSHPD.

 

 

Study Population

Our study included children aged ≤18 years with LRI, defined using the NQF Pediatric LRI Readmissions Measure: a primary diagnosis of bronchiolitis, influenza, or pneumonia, or a secondary diagnosis of bronchiolitis, influenza, or pneumonia, with a primary diagnosis of asthma, respiratory failure, sepsis, or bacteremia.8 International classification of Diseases, 9th edition (ICD-9) diagnostic codes used are in Appendix 1.

Per the NQF measure specifications,8 records were excluded if they were from hospitals with <80% of records complete with core elements (unique patient identifier, admission date, end-of-service date, and ICD-9 primary diagnosis code). In addition, records were excluded for the following reasons: (1) individual record missing core elements, (2) discharge disposition “death,” (3) 30-day follow-up data not available, (4) primary “newborn” or mental health diagnosis, or (5) primary ICD-9 procedure code for a planned procedure or chemotherapy.

Patient characteristics for hospital admissions with and without 30-day readmissions or 30-day emergency department (ED) revisits were summarized. For the continuous variable age, mean and standard deviation for each group were calculated. For categorical variables (sex, race, payer, and number of chronic conditions), numbers and proportions were determined. Univariate tests of comparison were carried out using the Student’s t test for age and chi-square tests for all categorical variables. Categories of payer with small values were combined for ease of description (categories combined into “other:” workers’ compensation, county indigent programs, other government, other indigent, self-pay, other payer). We identified chronic conditions using the Agency for Healthcare Research and Quality Chronic Condition Indicator (CCI) system, which classifies ICD-9-CM diagnosis codes as chronic or acute and places each code into 1 of 18 mutually exclusive categories (organ systems, disease categories, or other categories). The case-mix adjustment model incorporates a binary variable for each CCI category (0-1, 2, 3, or >4 chronic conditions) per the NQF measure specifications.8 This study was approved by the University of California, San Francisco Institutional Review Board.

Outcomes

Our primary outcome was the hospital-level rate of 30-day readmission after hospital discharge, consistent with the NQF measure.8 We identified outlier hospitals for 30-day readmission rate using the Centers for Medicare and Medicaid Services (CMS) methodology, which defines outlier hospitals as those for whom adjusted readmission rate confidence intervals do not overlap with the overall group mean rate.5, 14

We also determined the hospital-level average cost per index hospitalization (not including costs of readmissions). Since costs of care often differ substantially from charges,15 costs were calculated using cost-to-charge ratios for each hospital (annual total operating expenses/total gross patient revenue, as reported to the OSHPD).16 Costs were subdivided into categories representing $5,000 increments and a top category of >$40,000. Outlier hospitals for costs were defined as those for whom the cost random effect was either greater than the third quartile of the distribution of values by more than 1.5 times the interquartile range or less than the first quartile of the distribution of values by more than 1.5 times the interquartile range.17

ANALYSIS

Primary Analysis

 

 

For our primary analysis of 30-day hospital readmission rates, we used hierarchical logistic regression models with hospitals as random effects, adjusting for patient age, sex, and the presence and number of body systems affected by chronic conditions.8 These 4 patient characteristics were selected by the NQF measure developers “because distributions of these characteristics vary across hospitals, and although they are associated with readmission risk, they are independent of hospital quality of care.”10

Because the Centers for Medicare and Medicaid Services (CMS) are in the process of selecting pediatric quality measures for meaningful use reporting,18 we utilized CMS hospital readmissions methodology to calculate risk-adjusted rates and identify outlier hospitals. The CMS modeling strategy stabilizes performance estimates for low-volume hospitals and avoids penalizing these hospitals for high readmission rates that may be due to chance (random effects logistic model to obtain best linear unbiased predictions). This is particularly important in pediatrics, given the low pediatric volumes in many hospitals admitting children.4,19 We then identified outlier hospitals for the 30-day readmission rate using CMS methodology (hospital’s adjusted readmission rate confidence interval does not overlap the overall group mean rate).5, 4 CMS uses this approach for public reporting on HospitalCompare.20

Sensitivity Analyses

We tested several broadening variations of the NQF measure: (1) addition of children admitted with a primary diagnosis of asthma (without requiring LRI as a secondary diagnosis) or a secondary diagnosis of asthma exacerbation (LRIA), (2) inclusion of 30-day ED revisits as an outcome, and (3) merging of 3 years of data. These analyses were all performed using the same modeling strategy as in our primary analysis.

Secondary Outcome Analyses

Our analysis of hospital costs used costs for index admissions over 3 years (2012–2014) and included admissions for asthma. We used hierarchical regression models with hospitals as random effects, adjusting for age, gender, and the presence and number of chronic conditions. The distribution of cost values was highly skewed, so ordinal models were selected after several other modeling approaches failed (log transformation linear model, gamma model, Poisson model, zero-truncated Poisson model).

The relationship between hospital-level costs and hospital-level 30-day readmission or ED revisit rates was analyzed using Spearman’s rank correlation coefficient. Statistical analysis was performed using SAS version 9.4 software (SAS Institute; Cary, North Carolina).

RESULTS

Primary Analysis of 30-day Readmissions (per National Quality Forum Measure)

Our analysis of the 2014 OSHPD database using the specifications of the NQF Pediatric LRI Readmission Measure included a total of 5550 hospitalizations from 174 hospitals, with a mean of 12 eligible hospitalizations per hospital. The mean risk-adjusted readmission rate was 6.5% (362 readmissions). There were no hospitals that were considered outliers based on the risk-adjusted readmission rates (Table 1).

Sensitivity Analyses (Broadening Definitions of National Quality Forum Measure)

We report our testing of the broadened variations of the NQF measure in Table 1. Broadening the population to include children with asthma as a primary diagnosis and children with asthma exacerbations as a secondary diagnosis (LRIA) increased the size of our analysis to 8402 hospitalizations from 190 hospitals. The mean risk-adjusted readmission rate was 5.5%, and no outlier hospitals were identified.

 

 

Using the same inclusion criteria of the NQF measure but including 30-day ED revisits as an outcome, we analyzed a total of 5500 hospitalizations from 174 hospitals. The mean risk-adjusted event rate was higher at 7.9%, but there were still no outlier hospitals identified.

Using the broadened population definition (LRIA) and including 30-day ED revisits as an outcome, we analyzed a total of 8402 hospitalizations from 190 hospitals. The mean risk-adjusted event rate was 6.8%, but there were still no outlier hospitals identified.

In our final iteration, we merged 3 years of hospital data (2012-2014) using the broader population definition (LRIA) and including 30-day ED revisits as an outcome. This resulted in 27,873 admissions from 239 hospitals for this analysis, with a mean of 28 eligible hospitalizations per hospital. The mean risk-adjusted event rate was 6.7%, and this approach identified 2 high-performing (risk-adjusted rates: 3.6-5.3) and 7 low-performing hospitals (risk-adjusted rates: 10.1-15.9).

Table 2 presents the demographics of children included in this analysis. Children who had readmissions/revisits were younger, more likely to be white, less likely to have private insurance, and more likely to have a greater number of chronic conditions compared to children without readmissions/revisits.

Secondary Outcome: Hospital Costs

In the analysis of hospital-level costs, we found only 1 outlier high-cost hospital. There was a 20% probability of a hospital respiratory admission costing ≥$40,000 at this hospital. We found no overall relationship between hospital 30-day respiratory readmission rate and hospital costs (Figure 1). However, the hospitals that were outliers for low readmission rates also had low probabilities of excessive hospital costs (3% probability of costs >$40,000; Figure 2).

DISCUSSION

We used a nationally endorsed pediatric quality measure to evaluate hospital performance, defined as 30-day readmission rates for children with respiratory illness. We examined all-payer data from California, which is the most populous state in the country and home to 1 in 8 American children. In this large California dataset, we were unable to identify meaningful variation in hospital performance due to low hospital volumes and event rates. However, when we broadened the measure definition, we were able to identify performance variation. Our findings underscore the importance of testing and potentially modifying existing quality measures in order to more accurately capture the quality of care delivered at hospitals with lower volumes of pediatric patients.21

Prior analyses have raised similar concerns about the limitations of assessing condition-specific readmissions measures in inpatient pediatrics. Bardach et al. used 6 statewide databases to examine hospital rates of readmissions and ED revisits for common pediatric diagnoses. They identified few hospitals as high or low performers due to low hospital volumes.5 More recently, Nakamura et al. analyzed hospital performance using the same NQF Pediatric LRI Readmission Measure we evaluated. They used the Medicaid Analytic eXtract dataset from 26 states. They identified 7 outlier hospitals (of 338), but only when restricting their analysis to hospitals with >50 LRI admissions per year.10 Of note, if our assessment using this quality measure was limited to only those California hospitals with >50 pediatric LRI admissions/year, 83% of California hospitals would have been excluded from performance assessment.

Our underlying assumption, in light of these prior studies, was that increasing the eligible sample in each hospital by combining respiratory diseases and by using an all-payer claims database rather than a Medicaid-only database would increase the number of detectable outlier hospitals. However, we found that these approaches did not ameliorate the limitations of small volumes. Only through aggregating data over 3 years was it possible to identify any outliers, and this approach identified only 3% of hospitals as outliers. Hence, our analysis reinforces concerns raised by several prior analyses4-7 regarding the limited ability of current pediatric readmission measures to detect meaningful, actionable differences in performance across all types of hospitals (including general/nonchildren’s hospitals). This issue is of particular concern for common pediatric conditions like respiratory illnesses, for which >70% of hospitalizations occur in general hospitals.11

Developers and utilizers of pediatric quality metrics should consider strategies for identifying meaningful, actionable variation in pediatric quality of care at general hospitals. These strategies might include our approach of combining several years of hospital data in order to reach adequate volumes for measuring performance. The potential downside to this approach is performance lag—specifically, hospitals implementing quality improvement readmissions programs may not see changes in their performance for a year or two on a measure aggregating 3 years of data. Alternatively, it is possible that the measure might be used more appropriately across a larger group of hospitals, either to assess performance for multihospital accountable care organization (ACO), or to assess performance for a service area or county. An aggregated group of hospitals would increase the eligible patient volume and, if there is an ACO relationship established, coordinated interventions could be implemented across the hospitals.

We examined the 30-day readmission rate because it is the current standard used by CMS and all NQF-endorsed readmission measures.22,23 Another potential approach is to analyze the 7- or 15-day readmission rate. However, these rates may be similarly limited in identifying hospital performance due to low volumes and event rates. An analysis by Wallace et al. of preventable readmissions to a tertiary children’s hospital found that, while many occurred within 7 days or 15 days, 27% occurred after 7 days and 22%, after 15.24 However, an analysis of several adult 30-day readmission measures used by CMS found that the contribution of hospital-level quality to the readmission rate (measured by intracluster correlation coefficient) reached a nadir at 7 days, which suggests that most readmissions after the seventh day postdischarge were explained by community- and household-level factors beyond hospitals’ control.22 Hence, though 7- or 15-day readmission rates may better represent preventable outcomes under the hospital’s control, the lower event rates and low hospital volumes likely similarly limit the feasibility of their use for performance measurement.

Pediatric quality measures are additionally intended to drive improvements in the value of pediatric care, defined as quality relative to costs.25 In order to better understand the relationship of hospital performance across both the domains of readmissions (quality) and costs, we examined hospital-level costs for care of pediatric respiratory illnesses. We found no overall relationship between hospital readmission rates and costs; however, we found 2 hospitals in California that had significantly lower readmission rates as well as low costs. Close examination of hospitals such as these, which demonstrate exceptional performance in quality and costs, may promote the discovery and dissemination of strategies to improve the value of pediatric care.12

Our study had several limitations. First, the OSHPD database lacked detailed clinical variables to correct for additional case-mix differences between hospitals. However, we used the approach of case-mix adjustment outlined by an NQF-endorsed national quality metric.8 Secondly, since our data were limited to a single state, analyses of other databases may have yielded different results. However, prior analyses using other multistate databases reported similar limitations,5,6 likely due to the limitations of patient volume that are generalizable to settings outside of California. In addition, our cost analysis was performed using cost-to-charge ratios that represent total annual expenses/revenue for the whole hospital.16 These ratios may not be reflective of the specific services provided for children in our analysis; however, service-specific costs were not available, and cost-to-charge ratios are commonly used to report costs.

 

 

CONCLUSION

The ability of a nationally-endorsed pediatric respiratory readmissions measure to meaningfully identify variation in hospital performance is limited. General hospitals, which provide the majority of pediatric care for common conditions such as LRI, likely cannot be accurately evaluated using national pediatric quality metrics as they are currently designed. Modifying measures in order to increase hospital-level pediatric patient volumes may facilitate more meaningful evaluation of the quality of pediatric care in general hospitals and identification of exceptional hospitals for understanding best practices in pediatric inpatient care.

Disclosures

Regina Lam consulted for Proximity Health doing market research during the course of developing this manuscript, but this work did not involve any content related to quality metrics, and this entity did not play any role in the development of this manuscript. The remaining authors have no conflicts of interest relevant to this article to disclose.

Funding

Supported by the Agency for Healthcare Research and Quality (K08 HS24592 to SVK and U18HS25297 to MDC and NSB) and the National Institute of Child Health and Human Development (K23HD065836 to NSB). The funding agency played no role in the study design; the collection, analysis, and interpretation of data; the writing of the report; or the decision to submit the manuscript for publication.

 

Respiratory illnesses are the leading causes of pediatric hospitalizations in the United States.1 The 30-day hospital readmission rate for respiratory illnesses is being considered for implementation as a national hospital performance measure, as it may be an indicator of lower quality care (eg, poor hospital management of disease, inadequate patient/caretaker education prior to discharge). In adult populations, readmissions can be used to reliably identify variation in hospital performance and successfully drive efforts to improve the value of care.2, 3 In contrast, there are persistent concerns about using pediatric readmissions to identify variation in hospital performance, largely due to lower patient volumes.4-7 To increase the value of pediatric hospital care, it is important to develop ways to meaningfully measure quality of care and further, to better understand the relationship between measures of quality and healthcare costs.

In December 2016, the National Quality Forum (NQF) endorsed a Pediatric Lower Respiratory Infection (LRI) Readmission Measure.8 This measure was developed by the Pediatric Quality Measurement Program, through the Agency for Healthcare Research and Quality. The goal of this program was to “increase the portfolio of evidence-based, consensus pediatric quality measures available to public and private purchasers of children’s healthcare services, providers, and consumers.”9

In anticipation of the national implementation of pediatric readmission measures, we examined whether the Pediatric LRI Readmission Measure could meaningfully identify high and low performers across all types of hospitals admitting children (general hospitals and children’s hospitals) using an all-payer claims database. A recent analysis by Nakamura et al. identified high and low performers using this measure10 but limited the analysis to hospitals with >50 pediatric LRI admissions per year, an approach that excludes many general hospitals. Since general hospitals provide the majority of care for children hospitalized with respiratory infections,11 we aimed to evaluate the measure in a broadly inclusive analysis that included all hospital types. Because low patient volumes might limit use of the measure,4,6 we tested several broadened variations of the measure. We also examined the relationship between hospital performance in pediatric LRI readmissions and healthcare costs.

Our analysis is intended to inform utilizers of pediatric quality metrics and policy makers about the feasibility of using these metrics to publicly report hospital performance and/or identify exceptional hospitals for understanding best practices in pediatric inpatient care.12

METHODS

Study Design and Data Source

We conducted an observational, retrospective cohort analysis using the 2012-2014 California Office of Statewide Health Planning and Development (OSHPD) nonpublic inpatient and emergency department databases.13 The OSHPD databases are compiled annually through mandatory reporting by all licensed nonfederal hospitals in California. The databases contain demographic (eg, age, gender) and utilization data (eg, charges) and can track readmissions to hospitals other than the index hospital. The databases capture administrative claims from approximately 450 hospitals, composed of 16 million inpatients, emergency department patients, and ambulatory surgery patients annually. Data quality is monitored through the California OSHPD.

 

 

Study Population

Our study included children aged ≤18 years with LRI, defined using the NQF Pediatric LRI Readmissions Measure: a primary diagnosis of bronchiolitis, influenza, or pneumonia, or a secondary diagnosis of bronchiolitis, influenza, or pneumonia, with a primary diagnosis of asthma, respiratory failure, sepsis, or bacteremia.8 International classification of Diseases, 9th edition (ICD-9) diagnostic codes used are in Appendix 1.

Per the NQF measure specifications,8 records were excluded if they were from hospitals with <80% of records complete with core elements (unique patient identifier, admission date, end-of-service date, and ICD-9 primary diagnosis code). In addition, records were excluded for the following reasons: (1) individual record missing core elements, (2) discharge disposition “death,” (3) 30-day follow-up data not available, (4) primary “newborn” or mental health diagnosis, or (5) primary ICD-9 procedure code for a planned procedure or chemotherapy.

Patient characteristics for hospital admissions with and without 30-day readmissions or 30-day emergency department (ED) revisits were summarized. For the continuous variable age, mean and standard deviation for each group were calculated. For categorical variables (sex, race, payer, and number of chronic conditions), numbers and proportions were determined. Univariate tests of comparison were carried out using the Student’s t test for age and chi-square tests for all categorical variables. Categories of payer with small values were combined for ease of description (categories combined into “other:” workers’ compensation, county indigent programs, other government, other indigent, self-pay, other payer). We identified chronic conditions using the Agency for Healthcare Research and Quality Chronic Condition Indicator (CCI) system, which classifies ICD-9-CM diagnosis codes as chronic or acute and places each code into 1 of 18 mutually exclusive categories (organ systems, disease categories, or other categories). The case-mix adjustment model incorporates a binary variable for each CCI category (0-1, 2, 3, or >4 chronic conditions) per the NQF measure specifications.8 This study was approved by the University of California, San Francisco Institutional Review Board.

Outcomes

Our primary outcome was the hospital-level rate of 30-day readmission after hospital discharge, consistent with the NQF measure.8 We identified outlier hospitals for 30-day readmission rate using the Centers for Medicare and Medicaid Services (CMS) methodology, which defines outlier hospitals as those for whom adjusted readmission rate confidence intervals do not overlap with the overall group mean rate.5, 14

We also determined the hospital-level average cost per index hospitalization (not including costs of readmissions). Since costs of care often differ substantially from charges,15 costs were calculated using cost-to-charge ratios for each hospital (annual total operating expenses/total gross patient revenue, as reported to the OSHPD).16 Costs were subdivided into categories representing $5,000 increments and a top category of >$40,000. Outlier hospitals for costs were defined as those for whom the cost random effect was either greater than the third quartile of the distribution of values by more than 1.5 times the interquartile range or less than the first quartile of the distribution of values by more than 1.5 times the interquartile range.17

ANALYSIS

Primary Analysis

 

 

For our primary analysis of 30-day hospital readmission rates, we used hierarchical logistic regression models with hospitals as random effects, adjusting for patient age, sex, and the presence and number of body systems affected by chronic conditions.8 These 4 patient characteristics were selected by the NQF measure developers “because distributions of these characteristics vary across hospitals, and although they are associated with readmission risk, they are independent of hospital quality of care.”10

Because the Centers for Medicare and Medicaid Services (CMS) are in the process of selecting pediatric quality measures for meaningful use reporting,18 we utilized CMS hospital readmissions methodology to calculate risk-adjusted rates and identify outlier hospitals. The CMS modeling strategy stabilizes performance estimates for low-volume hospitals and avoids penalizing these hospitals for high readmission rates that may be due to chance (random effects logistic model to obtain best linear unbiased predictions). This is particularly important in pediatrics, given the low pediatric volumes in many hospitals admitting children.4,19 We then identified outlier hospitals for the 30-day readmission rate using CMS methodology (hospital’s adjusted readmission rate confidence interval does not overlap the overall group mean rate).5, 4 CMS uses this approach for public reporting on HospitalCompare.20

Sensitivity Analyses

We tested several broadening variations of the NQF measure: (1) addition of children admitted with a primary diagnosis of asthma (without requiring LRI as a secondary diagnosis) or a secondary diagnosis of asthma exacerbation (LRIA), (2) inclusion of 30-day ED revisits as an outcome, and (3) merging of 3 years of data. These analyses were all performed using the same modeling strategy as in our primary analysis.

Secondary Outcome Analyses

Our analysis of hospital costs used costs for index admissions over 3 years (2012–2014) and included admissions for asthma. We used hierarchical regression models with hospitals as random effects, adjusting for age, gender, and the presence and number of chronic conditions. The distribution of cost values was highly skewed, so ordinal models were selected after several other modeling approaches failed (log transformation linear model, gamma model, Poisson model, zero-truncated Poisson model).

The relationship between hospital-level costs and hospital-level 30-day readmission or ED revisit rates was analyzed using Spearman’s rank correlation coefficient. Statistical analysis was performed using SAS version 9.4 software (SAS Institute; Cary, North Carolina).

RESULTS

Primary Analysis of 30-day Readmissions (per National Quality Forum Measure)

Our analysis of the 2014 OSHPD database using the specifications of the NQF Pediatric LRI Readmission Measure included a total of 5550 hospitalizations from 174 hospitals, with a mean of 12 eligible hospitalizations per hospital. The mean risk-adjusted readmission rate was 6.5% (362 readmissions). There were no hospitals that were considered outliers based on the risk-adjusted readmission rates (Table 1).

Sensitivity Analyses (Broadening Definitions of National Quality Forum Measure)

We report our testing of the broadened variations of the NQF measure in Table 1. Broadening the population to include children with asthma as a primary diagnosis and children with asthma exacerbations as a secondary diagnosis (LRIA) increased the size of our analysis to 8402 hospitalizations from 190 hospitals. The mean risk-adjusted readmission rate was 5.5%, and no outlier hospitals were identified.

 

 

Using the same inclusion criteria of the NQF measure but including 30-day ED revisits as an outcome, we analyzed a total of 5500 hospitalizations from 174 hospitals. The mean risk-adjusted event rate was higher at 7.9%, but there were still no outlier hospitals identified.

Using the broadened population definition (LRIA) and including 30-day ED revisits as an outcome, we analyzed a total of 8402 hospitalizations from 190 hospitals. The mean risk-adjusted event rate was 6.8%, but there were still no outlier hospitals identified.

In our final iteration, we merged 3 years of hospital data (2012-2014) using the broader population definition (LRIA) and including 30-day ED revisits as an outcome. This resulted in 27,873 admissions from 239 hospitals for this analysis, with a mean of 28 eligible hospitalizations per hospital. The mean risk-adjusted event rate was 6.7%, and this approach identified 2 high-performing (risk-adjusted rates: 3.6-5.3) and 7 low-performing hospitals (risk-adjusted rates: 10.1-15.9).

Table 2 presents the demographics of children included in this analysis. Children who had readmissions/revisits were younger, more likely to be white, less likely to have private insurance, and more likely to have a greater number of chronic conditions compared to children without readmissions/revisits.

Secondary Outcome: Hospital Costs

In the analysis of hospital-level costs, we found only 1 outlier high-cost hospital. There was a 20% probability of a hospital respiratory admission costing ≥$40,000 at this hospital. We found no overall relationship between hospital 30-day respiratory readmission rate and hospital costs (Figure 1). However, the hospitals that were outliers for low readmission rates also had low probabilities of excessive hospital costs (3% probability of costs >$40,000; Figure 2).

DISCUSSION

We used a nationally endorsed pediatric quality measure to evaluate hospital performance, defined as 30-day readmission rates for children with respiratory illness. We examined all-payer data from California, which is the most populous state in the country and home to 1 in 8 American children. In this large California dataset, we were unable to identify meaningful variation in hospital performance due to low hospital volumes and event rates. However, when we broadened the measure definition, we were able to identify performance variation. Our findings underscore the importance of testing and potentially modifying existing quality measures in order to more accurately capture the quality of care delivered at hospitals with lower volumes of pediatric patients.21

Prior analyses have raised similar concerns about the limitations of assessing condition-specific readmissions measures in inpatient pediatrics. Bardach et al. used 6 statewide databases to examine hospital rates of readmissions and ED revisits for common pediatric diagnoses. They identified few hospitals as high or low performers due to low hospital volumes.5 More recently, Nakamura et al. analyzed hospital performance using the same NQF Pediatric LRI Readmission Measure we evaluated. They used the Medicaid Analytic eXtract dataset from 26 states. They identified 7 outlier hospitals (of 338), but only when restricting their analysis to hospitals with >50 LRI admissions per year.10 Of note, if our assessment using this quality measure was limited to only those California hospitals with >50 pediatric LRI admissions/year, 83% of California hospitals would have been excluded from performance assessment.

Our underlying assumption, in light of these prior studies, was that increasing the eligible sample in each hospital by combining respiratory diseases and by using an all-payer claims database rather than a Medicaid-only database would increase the number of detectable outlier hospitals. However, we found that these approaches did not ameliorate the limitations of small volumes. Only through aggregating data over 3 years was it possible to identify any outliers, and this approach identified only 3% of hospitals as outliers. Hence, our analysis reinforces concerns raised by several prior analyses4-7 regarding the limited ability of current pediatric readmission measures to detect meaningful, actionable differences in performance across all types of hospitals (including general/nonchildren’s hospitals). This issue is of particular concern for common pediatric conditions like respiratory illnesses, for which >70% of hospitalizations occur in general hospitals.11

Developers and utilizers of pediatric quality metrics should consider strategies for identifying meaningful, actionable variation in pediatric quality of care at general hospitals. These strategies might include our approach of combining several years of hospital data in order to reach adequate volumes for measuring performance. The potential downside to this approach is performance lag—specifically, hospitals implementing quality improvement readmissions programs may not see changes in their performance for a year or two on a measure aggregating 3 years of data. Alternatively, it is possible that the measure might be used more appropriately across a larger group of hospitals, either to assess performance for multihospital accountable care organization (ACO), or to assess performance for a service area or county. An aggregated group of hospitals would increase the eligible patient volume and, if there is an ACO relationship established, coordinated interventions could be implemented across the hospitals.

We examined the 30-day readmission rate because it is the current standard used by CMS and all NQF-endorsed readmission measures.22,23 Another potential approach is to analyze the 7- or 15-day readmission rate. However, these rates may be similarly limited in identifying hospital performance due to low volumes and event rates. An analysis by Wallace et al. of preventable readmissions to a tertiary children’s hospital found that, while many occurred within 7 days or 15 days, 27% occurred after 7 days and 22%, after 15.24 However, an analysis of several adult 30-day readmission measures used by CMS found that the contribution of hospital-level quality to the readmission rate (measured by intracluster correlation coefficient) reached a nadir at 7 days, which suggests that most readmissions after the seventh day postdischarge were explained by community- and household-level factors beyond hospitals’ control.22 Hence, though 7- or 15-day readmission rates may better represent preventable outcomes under the hospital’s control, the lower event rates and low hospital volumes likely similarly limit the feasibility of their use for performance measurement.

Pediatric quality measures are additionally intended to drive improvements in the value of pediatric care, defined as quality relative to costs.25 In order to better understand the relationship of hospital performance across both the domains of readmissions (quality) and costs, we examined hospital-level costs for care of pediatric respiratory illnesses. We found no overall relationship between hospital readmission rates and costs; however, we found 2 hospitals in California that had significantly lower readmission rates as well as low costs. Close examination of hospitals such as these, which demonstrate exceptional performance in quality and costs, may promote the discovery and dissemination of strategies to improve the value of pediatric care.12

Our study had several limitations. First, the OSHPD database lacked detailed clinical variables to correct for additional case-mix differences between hospitals. However, we used the approach of case-mix adjustment outlined by an NQF-endorsed national quality metric.8 Secondly, since our data were limited to a single state, analyses of other databases may have yielded different results. However, prior analyses using other multistate databases reported similar limitations,5,6 likely due to the limitations of patient volume that are generalizable to settings outside of California. In addition, our cost analysis was performed using cost-to-charge ratios that represent total annual expenses/revenue for the whole hospital.16 These ratios may not be reflective of the specific services provided for children in our analysis; however, service-specific costs were not available, and cost-to-charge ratios are commonly used to report costs.

 

 

CONCLUSION

The ability of a nationally-endorsed pediatric respiratory readmissions measure to meaningfully identify variation in hospital performance is limited. General hospitals, which provide the majority of pediatric care for common conditions such as LRI, likely cannot be accurately evaluated using national pediatric quality metrics as they are currently designed. Modifying measures in order to increase hospital-level pediatric patient volumes may facilitate more meaningful evaluation of the quality of pediatric care in general hospitals and identification of exceptional hospitals for understanding best practices in pediatric inpatient care.

Disclosures

Regina Lam consulted for Proximity Health doing market research during the course of developing this manuscript, but this work did not involve any content related to quality metrics, and this entity did not play any role in the development of this manuscript. The remaining authors have no conflicts of interest relevant to this article to disclose.

Funding

Supported by the Agency for Healthcare Research and Quality (K08 HS24592 to SVK and U18HS25297 to MDC and NSB) and the National Institute of Child Health and Human Development (K23HD065836 to NSB). The funding agency played no role in the study design; the collection, analysis, and interpretation of data; the writing of the report; or the decision to submit the manuscript for publication.

 

References

1. Agency for Healthcare Research and Quality. Overview of hospital stays for children in the United States. https://www.hcup-us.ahrq.gov/reports/statbriefs/sb187-Hospital-Stays-Children-2012.jsp. Accessed September 1, 2017; 2012. PubMed
2. Mendelson A, Kondo K, Damberg C, et al. The effects of pay-for-performance programs on health, health care use, and processes of care: A systematic review. Ann Intern Med. 2017;166(5):341-353. doi: 10.7326/M16-1881PubMed
3. Zuckerman RB, Sheingold SH, Orav EJ, Ruhter J, Epstein AM. Readmissions, observation, and the hospital readmissions reduction program. N Engl J Med. 2016;374(16):1543-1551. doi: 10.1056/NEJMsa1513024PubMed
4. Bardach NS, Chien AT, Dudley RA. Small numbers limit the use of the inpatient pediatric quality indicators for hospital comparison. Acad Pediatr. 2010;10(4):266-273. doi: 10.1016/j.acap.2010.04.025PubMed
5. Bardach NS, Vittinghoff E, Asteria-Peñaloza R, et al. Measuring hospital quality using pediatric readmission and revisit rates. Pediatrics. 2013;132(3):429-436. doi: 10.1542/peds.2012-3527PubMed
6. Berry JG, Zaslavsky AM, Toomey SL, et al. Recognizing differences in hospital quality performance for pediatric inpatient care. Pediatrics. 2015;136(2):251-262. doi: 10.1542/peds.2014-3131PubMed
7. Hain PD, Gay JC, Berutti TW, Whitney GM, Wang W, Saville BR. Preventability of early readmissions at a children’s hospital. Pediatrics. 2013;131(1):e171-e181. doi: 10.1542/peds.2012-0820PubMed
8. Agency for Healthcare Research and Quality. Pediatric lower respiratory infection readmission measure. https://www.ahrq.gov/sites/default/files/wysiwyg/policymakers/chipra/factsheets/chipra_1415-p008-2-ef.pdf. Accessed September 3, 2017. 
9. Agency for Healthcare Research and Quality. CHIPRA Pediatric Quality Measures Program. https://archive.ahrq.gov/policymakers/chipra/pqmpback.html. Accessed October 10, 2017. 
10. Nakamura MM, Zaslavsky AM, Toomey SL, et al. Pediatric readmissions After hospitalizations for lower respiratory infections. Pediatrics. 2017;140(2). doi: 10.1542/peds.2016-0938PubMed
11. Leyenaar JK, Ralston SL, Shieh MS, Pekow PS, Mangione-Smith R, Lindenauer PK. Epidemiology of pediatric hospitalizations at general hospitals and freestanding children’s hospitals in the United States. J Hosp Med. 2016;11(11):743-749. doi: 10.1002/jhm.2624PubMed
12. Bradley EH, Curry LA, Ramanadhan S, Rowe L, Nembhard IM, Krumholz HM. Research in action: using positive deviance to improve quality of health care. Implement Sci. 2009;4:25. doi: 10.1186/1748-5908-4-25PubMed
13. California Office of Statewide Health Planning and Development. Data and reports. https://www.oshpd.ca.gov/HID/. Accessed September 3, 2017. 
14. QualityNet. Measure methodology reports. https://www.qualitynet.org/dcs/ContentServer?c=Page&pagename=QnetPublic%2FPage%2FQnetTier4&cid=1219069855841. Accessed October 10, 2017.
15. Riley GF. Administrative and claims records as sources of health care cost data. Med Care. 2009;47(7 Suppl 1):S51-S55. doi: 10.1097/MLR.0b013e31819c95aaPubMed
16. California Office of Statewide Health Planning and Development. Annual financial data. https://www.oshpd.ca.gov/HID/Hospital-Financial.asp. Accessed September 3, 2017.
17. Tukey J. Exploratory Data Analysis: Pearson; London, United Kingdom. 1977. 
18. Centers for Medicare and Medicaid Services. Core measures. https://www.cms.gov/Medicare/Quality-Initiatives-Patient-Assessment-Instruments/QualityMeasures/Core-Measures.html. Accessed September 1, 2017. 
19. Berry JG, Toomey SL, Zaslavsky AM, et al. Pediatric readmission prevalence and variability across hospitals. JAMA. 2013;309(4):372-380. doi: 10.1001/jama.2012.188351. PubMed
20. Centers for Medicare and Medicaid Services. HospitalCompare.  https://www.medicare.gov/hospitalcompare/search.html. Accessed on October 10, 2017. 
21. Mangione-Smith R. The challenges of addressing pediatric quality measurement gaps. Pediatrics. 2017;139(4). doi: 10.1542/peds.2017-0174PubMed
22. Chin DL, Bang H, Manickam RN, Romano PS. Rethinking thirty-day hospital readmissions: shorter intervals might be better indicators of quality of care. Health Aff (Millwood). 2016;35(10):1867-1875. doi: 10.1377/hlthaff.2016.0205PubMed
23. National Quality Forum. Measures, reports, and tools. http://www.qualityforum.org/Measures_Reports_Tools.aspx. Accessed March 1, 2018.
24. Wallace SS, Keller SL, Falco CN, et al. An examination of physician-, caregiver-, and disease-related factors associated With readmission From a pediatric hospital medicine service. Hosp Pediatr. 2015;5(11):566-573. doi: 10.1542/hpeds.2015-0015PubMed
25. Porter ME. What is value in health care? N Engl J Med. 2010;363(26):2477-2481. doi: 10.1056/NEJMp1011024. PubMed

References

1. Agency for Healthcare Research and Quality. Overview of hospital stays for children in the United States. https://www.hcup-us.ahrq.gov/reports/statbriefs/sb187-Hospital-Stays-Children-2012.jsp. Accessed September 1, 2017; 2012. PubMed
2. Mendelson A, Kondo K, Damberg C, et al. The effects of pay-for-performance programs on health, health care use, and processes of care: A systematic review. Ann Intern Med. 2017;166(5):341-353. doi: 10.7326/M16-1881PubMed
3. Zuckerman RB, Sheingold SH, Orav EJ, Ruhter J, Epstein AM. Readmissions, observation, and the hospital readmissions reduction program. N Engl J Med. 2016;374(16):1543-1551. doi: 10.1056/NEJMsa1513024PubMed
4. Bardach NS, Chien AT, Dudley RA. Small numbers limit the use of the inpatient pediatric quality indicators for hospital comparison. Acad Pediatr. 2010;10(4):266-273. doi: 10.1016/j.acap.2010.04.025PubMed
5. Bardach NS, Vittinghoff E, Asteria-Peñaloza R, et al. Measuring hospital quality using pediatric readmission and revisit rates. Pediatrics. 2013;132(3):429-436. doi: 10.1542/peds.2012-3527PubMed
6. Berry JG, Zaslavsky AM, Toomey SL, et al. Recognizing differences in hospital quality performance for pediatric inpatient care. Pediatrics. 2015;136(2):251-262. doi: 10.1542/peds.2014-3131PubMed
7. Hain PD, Gay JC, Berutti TW, Whitney GM, Wang W, Saville BR. Preventability of early readmissions at a children’s hospital. Pediatrics. 2013;131(1):e171-e181. doi: 10.1542/peds.2012-0820PubMed
8. Agency for Healthcare Research and Quality. Pediatric lower respiratory infection readmission measure. https://www.ahrq.gov/sites/default/files/wysiwyg/policymakers/chipra/factsheets/chipra_1415-p008-2-ef.pdf. Accessed September 3, 2017. 
9. Agency for Healthcare Research and Quality. CHIPRA Pediatric Quality Measures Program. https://archive.ahrq.gov/policymakers/chipra/pqmpback.html. Accessed October 10, 2017. 
10. Nakamura MM, Zaslavsky AM, Toomey SL, et al. Pediatric readmissions After hospitalizations for lower respiratory infections. Pediatrics. 2017;140(2). doi: 10.1542/peds.2016-0938PubMed
11. Leyenaar JK, Ralston SL, Shieh MS, Pekow PS, Mangione-Smith R, Lindenauer PK. Epidemiology of pediatric hospitalizations at general hospitals and freestanding children’s hospitals in the United States. J Hosp Med. 2016;11(11):743-749. doi: 10.1002/jhm.2624PubMed
12. Bradley EH, Curry LA, Ramanadhan S, Rowe L, Nembhard IM, Krumholz HM. Research in action: using positive deviance to improve quality of health care. Implement Sci. 2009;4:25. doi: 10.1186/1748-5908-4-25PubMed
13. California Office of Statewide Health Planning and Development. Data and reports. https://www.oshpd.ca.gov/HID/. Accessed September 3, 2017. 
14. QualityNet. Measure methodology reports. https://www.qualitynet.org/dcs/ContentServer?c=Page&pagename=QnetPublic%2FPage%2FQnetTier4&cid=1219069855841. Accessed October 10, 2017.
15. Riley GF. Administrative and claims records as sources of health care cost data. Med Care. 2009;47(7 Suppl 1):S51-S55. doi: 10.1097/MLR.0b013e31819c95aaPubMed
16. California Office of Statewide Health Planning and Development. Annual financial data. https://www.oshpd.ca.gov/HID/Hospital-Financial.asp. Accessed September 3, 2017.
17. Tukey J. Exploratory Data Analysis: Pearson; London, United Kingdom. 1977. 
18. Centers for Medicare and Medicaid Services. Core measures. https://www.cms.gov/Medicare/Quality-Initiatives-Patient-Assessment-Instruments/QualityMeasures/Core-Measures.html. Accessed September 1, 2017. 
19. Berry JG, Toomey SL, Zaslavsky AM, et al. Pediatric readmission prevalence and variability across hospitals. JAMA. 2013;309(4):372-380. doi: 10.1001/jama.2012.188351. PubMed
20. Centers for Medicare and Medicaid Services. HospitalCompare.  https://www.medicare.gov/hospitalcompare/search.html. Accessed on October 10, 2017. 
21. Mangione-Smith R. The challenges of addressing pediatric quality measurement gaps. Pediatrics. 2017;139(4). doi: 10.1542/peds.2017-0174PubMed
22. Chin DL, Bang H, Manickam RN, Romano PS. Rethinking thirty-day hospital readmissions: shorter intervals might be better indicators of quality of care. Health Aff (Millwood). 2016;35(10):1867-1875. doi: 10.1377/hlthaff.2016.0205PubMed
23. National Quality Forum. Measures, reports, and tools. http://www.qualityforum.org/Measures_Reports_Tools.aspx. Accessed March 1, 2018.
24. Wallace SS, Keller SL, Falco CN, et al. An examination of physician-, caregiver-, and disease-related factors associated With readmission From a pediatric hospital medicine service. Hosp Pediatr. 2015;5(11):566-573. doi: 10.1542/hpeds.2015-0015PubMed
25. Porter ME. What is value in health care? N Engl J Med. 2010;363(26):2477-2481. doi: 10.1056/NEJMp1011024. PubMed

Issue
Journal of Hospital Medicine 13(11)
Issue
Journal of Hospital Medicine 13(11)
Page Number
737-742. Published online first July 25, 2018.
Page Number
737-742. Published online first July 25, 2018.
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The Adoption of an Online Journal Club to Improve Research Dissemination and Social Media Engagement Among Hospitalists

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Clinicians, educators, and medical journals are increasingly using the social media outlet, Twitter, as a medium to connect and engage with their colleagues. In particular, online journal clubs have created a space for the timely discussion of research, creation of online communities, and dissemination of research.

Social media-based journal clubs are thought to be one way in which journals can leverage the power of social networks so that researchers can engage with a diverse range of end users4 (including bedside clinicians, administrators, and patients). Several examples of these models exist. For example, #GeriMedJC acts as a complimentary, synchronous chat that takes place at the same time as a live, in-person journal club. #NephJC offers multiple 1-hour chats per month and provides an in-depth summary and analysis of each article, while #UroJC is an asynchronous discussion that takes place over 48 hours. Few data exist to describe whether any of these programs produce measurable improvements in indicators of engagement or dissemination of results.

In 2015, the Journal of Hospital Medicine (JHM) began producing a Twitter-based journal club as a means to connect and engage the Hospital Medicine community and allow for discussion and rapid exchange of information and opinions around a specific clinical topic. This study aims to describe the implementation of the first Journal-sponsored, Twitter-based online journal club and ascertain its impact on both Twitter and journal metrics.

METHODS

#JHMChat was launched in October 2015, and was initially held every 2-3 months until January 2017, when chats began to take place monthly. Each 1-hour chat focused on a recently published article in JHM, was moderated by a JHM social media editor (C.M.W., V.M.A.), and included at least 1 study author or guest expert. Articles were chosen by the social media editors based on the following criteria: (1) attractiveness to possible participants, (2) providing topic variety within the journal club series, and (3) sustainability and topic conduciveness to the online chat model. Chats were held at 9 PM EST in order to engage hospitalists across all US time zones and on different days to accommodate authors’ availability. All sessions were framed by 3-4 questions intended to encourage discussion and presented to chat participants at spaced intervals so as to stimulate a current of responses.

Chats were promoted by way of the JHM (@JHospMedicine, 3400 followers) and Society of Hospital Medicine (SHM; @SHMLive, 5800 followers) Twitter feeds beginning 1 month prior to each session. Visual Abstracts5,6 were used to publicize the sessions, also via Twitter, starting in February 2017.

Continuing Medical Education (CME) credits were offered through the SHM to registered participants, starting in July 2016.7 All sessions were cosponsored by the American Board of Internal Medicine (ABIM) Foundation and the Costs of Care Organization, a non-profit organization aimed at improving healthcare value.

 

 

Twitter Metrics

After each session, the following Twitter-based engagement metrics were obtained using the Symplur© Healthcare Hashtag project;8 total number of participants and tweets, tweets/participant, and total impressions (calculated as the number of tweets from each participant multiplied by the number of followers that participant currently had then summed up for all participants). Simply put, impressions can also be thought of as the number of times a single Tweet makes it into someone else’s Twitter feed. So as to avoid artificially inflated metrics, all were obtained 2 hours after the end of the journal club. Participants were defined as anyone who posted an original tweet or retweeted during the session and were encouraged to tag their tweets with the hashtag #JHMChat for post-discussion indexing and measurement. Because authors’ or guests’ popularity on Twitter may influence participation rates, we also assessed the number of followers for each participating author. Spearman’s rank correlation was calculated (Microsoft ExcelTM) where appropriate.

Altmetrics and Page Views

As a means to measure exposure and dissemination external to Twitter, we assessed the change (“Delta”) in the each article’s Altmetric score9, a digital-based metric that quantifies the attention received by a scientific publication on various online platforms including news, blogs, and social media. Delta Altmetric scores were calculated as the difference between the scores on the day of the session and 2 weeks after the respective session, with higher scores indicating greater global online discussion. By measuring the Altmetric score on the day of the discussion, we established a baseline score for comparison purposes. Additionally, this allowed us to better attribute any changes that may have occurred to the discussion itself.

Additionally, using information provided by the journal publisher (John Wiley & Sons Publishing) in 2016, we assessed the effect of #JHMChat on the number of article page views on the JHM website relative to the release of the electronic Table of Contents (eTOC). The eTOC release was chosen as it is historically associated with a high number of page views. In order to isolate the effect of #JHMChat, we only reviewed months in which #JHMChat was not held within 3 days of the eTOC release. Because JHM changed publishers in January 2017, we only assessed page view data on 2016 sessions, as the new publisher lacked enhanced search optimization to obtain these data.

Thematic Analysis

In addition to the above measurements, a thematic analysis of each article was conducted to assess any common themes that would influence our chosen metrics. Themes were assessed and ascribed by one author (C.M.W.) and verified by another (V.M.A.).

Participant and Author Experience

To assess the participant experience, responses to a post-session CME questionnaire that assessed (1) overall quality, (2) comprehensiveness of the discussion, (3) whether the participant would recommend the chat to a colleague, and (4) whether participation would lead to practice-changing measures were reviewed. Registration of each session for CME was also quantified. Finally, each participating author was asked to fill out an electronic post-chat survey (SurveyMonkey®) meant to assess the authors’ experience with the journal club (Appendix).

 

 

RESULTS

Between October 2015 and November 2017, a total of 15 sessions were held with a mean of 2.17 (±0.583) million impressions/session, 499 (±129) total tweets/session, and 73 (±24) participants/session (compared to a range of 21-58 participants/session from other online journal clubs, where reported) with 7.2 (±2.0) tweets/participant (Table 1). The total number of participants for all sessions was 1096. Participating authors had on average 1389 (±2714) followers, ranging from a low of 37 to a high of 10,376 (Appendix). No correlation between author following and number of participants (r = 0.19), impressions (r = 0.05), or change in Altmetric score (r = 0.17) was seen.

Thematic analysis revealed 3 predominant themes among the chosen articles: Value-based care (VBC), Quality and Patient Safety (QPS), and Medical Education (ME). Articles focused on VBC had the greatest number of impressions (mean ±SD: 2.61 ± 0.55 million) and participants (mean ±SD: 90 ± 12), while QPS articles had the fewest impressions (mean ±SD: 1.71 ± 0.59 million) and number of participants (mean ±SD: 47 ± 16). The mean increase in the Altmetric score among all discussed articles was 14 (±12), from an average baseline of 30 (±37). Medical Education-themed articles appeared to garner the greatest increase in Altmetric scores, averaging an increase of 32 points, compared with an average baseline score of 31 (±32). In contrast, VBC and QPS articles averaged an increase of 8.6 and 8.4 points, from average baselines of 55 (±53) and 17 (±13), respectively. A 2-month analysis of JHM articles not included in these discussions, in which Altmetric scores were measured in the same way as those from the discussion, revealed a baseline Altmetric score of 27 (±24) with an average increase of 8 (±6) 2 weeks following the chat.

Four articles met the inclusion criteria for page view analysis and suggested that article page views increased to similar levels as the eTOC release (mean: 2668 vs. 2998, respectively; P = .35) (Figure). These increases equate to a 33% and 50% increase in average daily page views (2002) for the chat and eTOC release, respectively.

On average, 10 (±8.0) individuals/session registered for CME, with 119 claiming CME credit in total. Forty-six percent (55/119) of participants completed the post-discussion questionnaire, with 93% and 87% reporting the sessions as ‘very good’ or ‘excellent’ with regard to overall quality and comprehensiveness of the session, respectively. Ninety-seven percent stated that they would recommend #JHMChat to a fellow colleague, and 95% stated that participation in the chat would change their practice patterns through any of the following: changing their personal practice, teaching others about the new practice, revising a protocol or institutional policy or procedure, or educating patients about the new practice (Table 2).

Ninety-three percent (14/15) of the participating authors responded to the post-discussion survey. All strongly agreed (5/5 on a Likert scale) that the venue allowed for an in-depth discussion about processes and challenges in conducting the study and allowed for greater dissemination and visibility of their work (5/5). Additionally, authors agreed that the journal club was a valuable experience for themselves (4.88/5) and other practitioners (4.88/5). Most agreed that the journal club allowed them to share their work with a different group of participants than usual (4.75/5) and that the experience changed how they would discuss their manuscripts in the future (4.75/5.0); Table 2).

 

 

DISCUSSION

The Twitter-based journal club #JHMChat appears to increase social media awareness and dissemination of journal articles and was considered a useful engagement platform by both authors and participants.

Articles with a focus on VBC and ME had the greatest impact on dissemination metrics, particularly, total impressions and Altmetric scores, respectively. Given the strong presence and interest in these topics within Twitter and social media, these findings are not surprising.10,11 For example, over the past several years, the VBC movement has taken shape and grown alongside the expansion of social media, thus giving a space for this community to grow and engage. Of note, the cosponsorship relationship with the ABIM Foundation (which works closely with the Choosing Wisely™ campaign) and the Costs of Care Organization could have influenced the participation and dissemination rates of VBC articles. Medical education articles were also popular and appeared to have increased uptake after chats, based on their Altmetric scores. This may be explained by the fact that medical educators have long utilized social media as a means to connect and engage within their community.12–14 It is also possible that the use of Twitter by trainees (residents, students) may have driven some of the dissemination of ME articles, as this group may not be regular subscribers to JHM.

Online journal clubs offer distinct advantages over traditional in-person journal clubs. First, online journal clubs allow for increased connectivity among online communities, bringing together participants from different geographic areas with diverse training and clinical experiences. Subsequently, this allows for the rapid exchange of both personal and organizational approaches to the topic of discussion.15–17 Second, online journal clubs allow for continual access to the discussion material. For example, while the metrics used in this study only assessed active, synchronous participation, anecdotal evidence and feedback to the authors suggests that many individuals passively engaged by following along or reviewed the chat feed post hoc at their convenience. This asynchronous access is a quality not found in more traditional journal club formats. Finally, because online journal clubs commonly operate with a flattened hierarchy,18 they can break down access barriers to both the researchers who performed the study and thought leaders who commonly participate.17

Several insightful lessons were gleaned in the production and management of this online journal club. On the implementation side, promotion, preparation, and continued organization of an online journal club requires a fair amount of work. In this case, the required time and resources were provided by 2 social media editors in addition to administrative assistance from the SHM. The high attrition rate of online journal clubs over the years attests to these difficulties.24 Additionally, finding incentives to attract and sustain participation can be difficult, as we noted that neither CME nor author popularity (based on their Twitter following) appeared to influence engagement metrics (number of participants, total tweets, and tweets/participant). We also found that partnering with other journal club communities, in particular #NephJC, lead to greater participation rates and impressions. Thus, leveraging connections and topics that span clinical domains may be one way to improve and broaden engagement within these forums. Finally, feedback from participants revealed that the timing of the journal club and the inability to have in-depth discussions, a characteristic commonly associated with traditional journal clubs, were problematic.

This study has several limitations. First, the metrics used to assess social media engagement and dissemination can be easily skewed. For instance, the activity of 1 or 2 individuals with large followings can dramatically influence the number of impressions, giving a falsely elevated sense of broad dissemination. Conversely, there may have been some participants who did not use the #JHMChat hashtag, thus leading to an underestimation in these metrics. Second, while we report total impressions as a measure of dissemination, this metric represents possible interactions and does not guarantee interaction or visualization of that tweet. Additionally, we were unable to characterize our participants and their participation rates over time, as this information is not made available through Symplur© analytics. Third, our page view assessment was limited to 2016 sessions only; therefore, these data may not be an accurate reflection of the impact of #JHMChat on this metric. Fourth, given the marginal response rate to our CME questionnaire, a selection bias could have occurred. Finally, whether social media discussions such as online journal clubs act as leading indicators for future citations remains unclear, as some research has shown an association between increased Altmetric scores and increased citation rates,19-21 while others have not.22,23 Our study was not equipped to assess this correlation.

 

 

CONCLUSION

Online journal clubs create new opportunities to connect, engage, and disseminate medical research. These developing forums provide journal editors, researchers, patients, and clinicians with a means to connect and discuss research in ways that were not previously possible. In order to continue to evolve and grow, future research in online journal clubs should explore the downstream effects on citation rates, clinical uptake, and participant knowledge after the sessions.

Acknowledgments

The authors would like to thank Felicia Steele for her assistance in organizing and promoting the chats. Additionally, the authors would like to thank all the authors, guests and participants who took time from their families, work, and daily lives to participate in these activities. Your time and presence were truly appreciated.

Disclosures

The authors of this article operate as the Social Media Editors (C.M.W., V.M.A.) and the Editor-in-Chief (A.A.) for the Journal of Hospital Medicine. Dr. Wray had full access to all the data in the project, takes responsibility for the integrity of the data, and the accuracy of the data analysis.

 

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References

1. Topf JM, Sparks MA, Phelan PJ, et al. The evolution of the journal club: from osler to twitter. Am J Kidney Dis Off J Natl Kidney Found. 2017;69(6):827-836. doi: 10.1053/j.ajkd.2016.12.012. PubMed
2. Thangasamy IA, Leveridge M, Davies BJ, Finelli A, Stork B, Woo HH. International urology journal club via Twitter: 12-month experience. Eur Urol. 2014;66(1):112-117. doi: 10.1016/j.eururo.2014.01.034. PubMed
3. Gardhouse AI, Budd L, Yang SYC, Wong CL. #GeriMedJC: the Twitter complement to the traditional-format geriatric medicine journal club. J Am Geriatr Soc. 2017;65(6):1347-1351. doi: 10.1111/jgs.14920. PubMed
4. Duque L. How academics and researchers can get more out of social media. Harvard Business Review. https://hbr.org/2016/06/how-academics-and-researchers-can-get-more-out-of-social-media. Accessed November 9, 2017. 
5. Wray CM, Arora VM. #VisualAbstract: a revolution in communicating science? Ann Surg. 2017;266(6):e49-e50. doi: 10.1097/SLA.0000000000002339. PubMed
6. Ibrahim AM. Seeing is believing: using visual abstracts to disseminate scientific research. Am J Gastroenterol. 2017:ajg2017268. doi: 10.1038/ajg.2017.268. PubMed
7. #JHMChat. http://shm.hospitalmedicine.org/acton/media/25526/jhmchat. Accessed November 9, 2017.
8. #JHMChat-healthcare social media. Symplur. https://www.symplur.com/search/%23JHMChat. Accessed November 9, 2017.
9. Altmetric. Altmetric. https://www.altmetric.com/. Accessed November 9, 2017.
10. value-based healthcare | Symplur. https://www.symplur.com/topic/value-based-healthcare/. Accessed November 17, 2017.
11. medical education | Symplur. https://www.symplur.com/topic/medical-education/. Accessed November 17, 2017.
12. Sterling M, Leung P, Wright D, Bishop TF. The use of social media in graduate medical education: a systematic review. Acad Med. 2017;92(7):1043. doi: 10.1097/ACM.0000000000001617. PubMed
13. Davis WM, Ho K, Last J. Advancing social media in medical education. CMAJ Can Med Assoc J. 2015;187(8):549-550. doi: 10.1503/cmaj.141417. PubMed
14. Hillman T, Sherbino J. Social media in medical education: a new pedagogical paradigm? Postgrad Med J. 2015;91(1080):544-545. doi: 10.1136/postgradmedj-2015-133686. PubMed
15. Gerds AT, Chan T. Social media in hematology in 2017: dystopia, utopia, or somewhere in-between? Curr Hematol Malig Rep. 2017;12(6):582-591. doi: 10.1007/s11899-017-0424-8. PubMed
16. Mehta N, Flickinger T. The times they are a-changin’: academia, social media and the JGIM Twitter Journal Club. J Gen Intern Med. 2014;29(10):1317-1318. doi: 10.1007/s11606-014-2976-9. PubMed
17. Chan T, Trueger NS, Roland D, Thoma B. Evidence-based medicine in the era of social media: scholarly engagement through participation and online interaction. CJEM. 2017:1-6. doi: 10.1017/cem.2016.407. PubMed
18. Utengen A. The flattening of healthcare: breaking down of barriers in healthcare social media-twitter visualized. https://www.symplur.com/shorts/the-flattening-of-healthcare-twitter-visualized/. Accessed November 8, 2017. 
19. Thelwall M, Haustein S, Larivière V, Sugimoto CR. Do altmetrics work? Twitter and ten other social web services. PloS One. 2013;8(5):e64841. doi: 10.1371/journal.pone.0064841. PubMed
20. Peoples BK, Midway SR, Sackett D, Lynch A, Cooney PB. Twitter predicts citation rates of ecological research. PloS One. 2016;11(11):e0166570. doi: 10.1371/journal.pone.0166570. PubMed
21. Eysenbach G. Can tweets predict citations? Metrics of social impact based on Twitter and correlation with traditional metrics of scientific impact. J Med Internet Res. 2011;13(4):e123. doi: 10.2196/jmir.2012. PubMed
22. Winter JCF de. The relationship between tweets, citations, and article views for PLOS ONE articles. Scientometrics. 2015;102(2):1773-1779. doi: 10.1007/s11192-014-1445-x. 
23. Haustein S, Peters I, Sugimoto CR, Thelwall M, Larivière V. Tweeting biomedicine: an analysis of tweets and citations in the biomedical literature. J Assoc Inf Sci Technol. 2014;65(4):656-669. doi: 10.1002/asi.23101. 
24. Journal club. In: Wikipedia. 2017. https://en.wikipedia.org/w/index.php?title=Journal_club&oldid=807037773. Accessed November 9, 2017.

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Related Articles

Clinicians, educators, and medical journals are increasingly using the social media outlet, Twitter, as a medium to connect and engage with their colleagues. In particular, online journal clubs have created a space for the timely discussion of research, creation of online communities, and dissemination of research.

Social media-based journal clubs are thought to be one way in which journals can leverage the power of social networks so that researchers can engage with a diverse range of end users4 (including bedside clinicians, administrators, and patients). Several examples of these models exist. For example, #GeriMedJC acts as a complimentary, synchronous chat that takes place at the same time as a live, in-person journal club. #NephJC offers multiple 1-hour chats per month and provides an in-depth summary and analysis of each article, while #UroJC is an asynchronous discussion that takes place over 48 hours. Few data exist to describe whether any of these programs produce measurable improvements in indicators of engagement or dissemination of results.

In 2015, the Journal of Hospital Medicine (JHM) began producing a Twitter-based journal club as a means to connect and engage the Hospital Medicine community and allow for discussion and rapid exchange of information and opinions around a specific clinical topic. This study aims to describe the implementation of the first Journal-sponsored, Twitter-based online journal club and ascertain its impact on both Twitter and journal metrics.

METHODS

#JHMChat was launched in October 2015, and was initially held every 2-3 months until January 2017, when chats began to take place monthly. Each 1-hour chat focused on a recently published article in JHM, was moderated by a JHM social media editor (C.M.W., V.M.A.), and included at least 1 study author or guest expert. Articles were chosen by the social media editors based on the following criteria: (1) attractiveness to possible participants, (2) providing topic variety within the journal club series, and (3) sustainability and topic conduciveness to the online chat model. Chats were held at 9 PM EST in order to engage hospitalists across all US time zones and on different days to accommodate authors’ availability. All sessions were framed by 3-4 questions intended to encourage discussion and presented to chat participants at spaced intervals so as to stimulate a current of responses.

Chats were promoted by way of the JHM (@JHospMedicine, 3400 followers) and Society of Hospital Medicine (SHM; @SHMLive, 5800 followers) Twitter feeds beginning 1 month prior to each session. Visual Abstracts5,6 were used to publicize the sessions, also via Twitter, starting in February 2017.

Continuing Medical Education (CME) credits were offered through the SHM to registered participants, starting in July 2016.7 All sessions were cosponsored by the American Board of Internal Medicine (ABIM) Foundation and the Costs of Care Organization, a non-profit organization aimed at improving healthcare value.

 

 

Twitter Metrics

After each session, the following Twitter-based engagement metrics were obtained using the Symplur© Healthcare Hashtag project;8 total number of participants and tweets, tweets/participant, and total impressions (calculated as the number of tweets from each participant multiplied by the number of followers that participant currently had then summed up for all participants). Simply put, impressions can also be thought of as the number of times a single Tweet makes it into someone else’s Twitter feed. So as to avoid artificially inflated metrics, all were obtained 2 hours after the end of the journal club. Participants were defined as anyone who posted an original tweet or retweeted during the session and were encouraged to tag their tweets with the hashtag #JHMChat for post-discussion indexing and measurement. Because authors’ or guests’ popularity on Twitter may influence participation rates, we also assessed the number of followers for each participating author. Spearman’s rank correlation was calculated (Microsoft ExcelTM) where appropriate.

Altmetrics and Page Views

As a means to measure exposure and dissemination external to Twitter, we assessed the change (“Delta”) in the each article’s Altmetric score9, a digital-based metric that quantifies the attention received by a scientific publication on various online platforms including news, blogs, and social media. Delta Altmetric scores were calculated as the difference between the scores on the day of the session and 2 weeks after the respective session, with higher scores indicating greater global online discussion. By measuring the Altmetric score on the day of the discussion, we established a baseline score for comparison purposes. Additionally, this allowed us to better attribute any changes that may have occurred to the discussion itself.

Additionally, using information provided by the journal publisher (John Wiley & Sons Publishing) in 2016, we assessed the effect of #JHMChat on the number of article page views on the JHM website relative to the release of the electronic Table of Contents (eTOC). The eTOC release was chosen as it is historically associated with a high number of page views. In order to isolate the effect of #JHMChat, we only reviewed months in which #JHMChat was not held within 3 days of the eTOC release. Because JHM changed publishers in January 2017, we only assessed page view data on 2016 sessions, as the new publisher lacked enhanced search optimization to obtain these data.

Thematic Analysis

In addition to the above measurements, a thematic analysis of each article was conducted to assess any common themes that would influence our chosen metrics. Themes were assessed and ascribed by one author (C.M.W.) and verified by another (V.M.A.).

Participant and Author Experience

To assess the participant experience, responses to a post-session CME questionnaire that assessed (1) overall quality, (2) comprehensiveness of the discussion, (3) whether the participant would recommend the chat to a colleague, and (4) whether participation would lead to practice-changing measures were reviewed. Registration of each session for CME was also quantified. Finally, each participating author was asked to fill out an electronic post-chat survey (SurveyMonkey®) meant to assess the authors’ experience with the journal club (Appendix).

 

 

RESULTS

Between October 2015 and November 2017, a total of 15 sessions were held with a mean of 2.17 (±0.583) million impressions/session, 499 (±129) total tweets/session, and 73 (±24) participants/session (compared to a range of 21-58 participants/session from other online journal clubs, where reported) with 7.2 (±2.0) tweets/participant (Table 1). The total number of participants for all sessions was 1096. Participating authors had on average 1389 (±2714) followers, ranging from a low of 37 to a high of 10,376 (Appendix). No correlation between author following and number of participants (r = 0.19), impressions (r = 0.05), or change in Altmetric score (r = 0.17) was seen.

Thematic analysis revealed 3 predominant themes among the chosen articles: Value-based care (VBC), Quality and Patient Safety (QPS), and Medical Education (ME). Articles focused on VBC had the greatest number of impressions (mean ±SD: 2.61 ± 0.55 million) and participants (mean ±SD: 90 ± 12), while QPS articles had the fewest impressions (mean ±SD: 1.71 ± 0.59 million) and number of participants (mean ±SD: 47 ± 16). The mean increase in the Altmetric score among all discussed articles was 14 (±12), from an average baseline of 30 (±37). Medical Education-themed articles appeared to garner the greatest increase in Altmetric scores, averaging an increase of 32 points, compared with an average baseline score of 31 (±32). In contrast, VBC and QPS articles averaged an increase of 8.6 and 8.4 points, from average baselines of 55 (±53) and 17 (±13), respectively. A 2-month analysis of JHM articles not included in these discussions, in which Altmetric scores were measured in the same way as those from the discussion, revealed a baseline Altmetric score of 27 (±24) with an average increase of 8 (±6) 2 weeks following the chat.

Four articles met the inclusion criteria for page view analysis and suggested that article page views increased to similar levels as the eTOC release (mean: 2668 vs. 2998, respectively; P = .35) (Figure). These increases equate to a 33% and 50% increase in average daily page views (2002) for the chat and eTOC release, respectively.

On average, 10 (±8.0) individuals/session registered for CME, with 119 claiming CME credit in total. Forty-six percent (55/119) of participants completed the post-discussion questionnaire, with 93% and 87% reporting the sessions as ‘very good’ or ‘excellent’ with regard to overall quality and comprehensiveness of the session, respectively. Ninety-seven percent stated that they would recommend #JHMChat to a fellow colleague, and 95% stated that participation in the chat would change their practice patterns through any of the following: changing their personal practice, teaching others about the new practice, revising a protocol or institutional policy or procedure, or educating patients about the new practice (Table 2).

Ninety-three percent (14/15) of the participating authors responded to the post-discussion survey. All strongly agreed (5/5 on a Likert scale) that the venue allowed for an in-depth discussion about processes and challenges in conducting the study and allowed for greater dissemination and visibility of their work (5/5). Additionally, authors agreed that the journal club was a valuable experience for themselves (4.88/5) and other practitioners (4.88/5). Most agreed that the journal club allowed them to share their work with a different group of participants than usual (4.75/5) and that the experience changed how they would discuss their manuscripts in the future (4.75/5.0); Table 2).

 

 

DISCUSSION

The Twitter-based journal club #JHMChat appears to increase social media awareness and dissemination of journal articles and was considered a useful engagement platform by both authors and participants.

Articles with a focus on VBC and ME had the greatest impact on dissemination metrics, particularly, total impressions and Altmetric scores, respectively. Given the strong presence and interest in these topics within Twitter and social media, these findings are not surprising.10,11 For example, over the past several years, the VBC movement has taken shape and grown alongside the expansion of social media, thus giving a space for this community to grow and engage. Of note, the cosponsorship relationship with the ABIM Foundation (which works closely with the Choosing Wisely™ campaign) and the Costs of Care Organization could have influenced the participation and dissemination rates of VBC articles. Medical education articles were also popular and appeared to have increased uptake after chats, based on their Altmetric scores. This may be explained by the fact that medical educators have long utilized social media as a means to connect and engage within their community.12–14 It is also possible that the use of Twitter by trainees (residents, students) may have driven some of the dissemination of ME articles, as this group may not be regular subscribers to JHM.

Online journal clubs offer distinct advantages over traditional in-person journal clubs. First, online journal clubs allow for increased connectivity among online communities, bringing together participants from different geographic areas with diverse training and clinical experiences. Subsequently, this allows for the rapid exchange of both personal and organizational approaches to the topic of discussion.15–17 Second, online journal clubs allow for continual access to the discussion material. For example, while the metrics used in this study only assessed active, synchronous participation, anecdotal evidence and feedback to the authors suggests that many individuals passively engaged by following along or reviewed the chat feed post hoc at their convenience. This asynchronous access is a quality not found in more traditional journal club formats. Finally, because online journal clubs commonly operate with a flattened hierarchy,18 they can break down access barriers to both the researchers who performed the study and thought leaders who commonly participate.17

Several insightful lessons were gleaned in the production and management of this online journal club. On the implementation side, promotion, preparation, and continued organization of an online journal club requires a fair amount of work. In this case, the required time and resources were provided by 2 social media editors in addition to administrative assistance from the SHM. The high attrition rate of online journal clubs over the years attests to these difficulties.24 Additionally, finding incentives to attract and sustain participation can be difficult, as we noted that neither CME nor author popularity (based on their Twitter following) appeared to influence engagement metrics (number of participants, total tweets, and tweets/participant). We also found that partnering with other journal club communities, in particular #NephJC, lead to greater participation rates and impressions. Thus, leveraging connections and topics that span clinical domains may be one way to improve and broaden engagement within these forums. Finally, feedback from participants revealed that the timing of the journal club and the inability to have in-depth discussions, a characteristic commonly associated with traditional journal clubs, were problematic.

This study has several limitations. First, the metrics used to assess social media engagement and dissemination can be easily skewed. For instance, the activity of 1 or 2 individuals with large followings can dramatically influence the number of impressions, giving a falsely elevated sense of broad dissemination. Conversely, there may have been some participants who did not use the #JHMChat hashtag, thus leading to an underestimation in these metrics. Second, while we report total impressions as a measure of dissemination, this metric represents possible interactions and does not guarantee interaction or visualization of that tweet. Additionally, we were unable to characterize our participants and their participation rates over time, as this information is not made available through Symplur© analytics. Third, our page view assessment was limited to 2016 sessions only; therefore, these data may not be an accurate reflection of the impact of #JHMChat on this metric. Fourth, given the marginal response rate to our CME questionnaire, a selection bias could have occurred. Finally, whether social media discussions such as online journal clubs act as leading indicators for future citations remains unclear, as some research has shown an association between increased Altmetric scores and increased citation rates,19-21 while others have not.22,23 Our study was not equipped to assess this correlation.

 

 

CONCLUSION

Online journal clubs create new opportunities to connect, engage, and disseminate medical research. These developing forums provide journal editors, researchers, patients, and clinicians with a means to connect and discuss research in ways that were not previously possible. In order to continue to evolve and grow, future research in online journal clubs should explore the downstream effects on citation rates, clinical uptake, and participant knowledge after the sessions.

Acknowledgments

The authors would like to thank Felicia Steele for her assistance in organizing and promoting the chats. Additionally, the authors would like to thank all the authors, guests and participants who took time from their families, work, and daily lives to participate in these activities. Your time and presence were truly appreciated.

Disclosures

The authors of this article operate as the Social Media Editors (C.M.W., V.M.A.) and the Editor-in-Chief (A.A.) for the Journal of Hospital Medicine. Dr. Wray had full access to all the data in the project, takes responsibility for the integrity of the data, and the accuracy of the data analysis.

 

Clinicians, educators, and medical journals are increasingly using the social media outlet, Twitter, as a medium to connect and engage with their colleagues. In particular, online journal clubs have created a space for the timely discussion of research, creation of online communities, and dissemination of research.

Social media-based journal clubs are thought to be one way in which journals can leverage the power of social networks so that researchers can engage with a diverse range of end users4 (including bedside clinicians, administrators, and patients). Several examples of these models exist. For example, #GeriMedJC acts as a complimentary, synchronous chat that takes place at the same time as a live, in-person journal club. #NephJC offers multiple 1-hour chats per month and provides an in-depth summary and analysis of each article, while #UroJC is an asynchronous discussion that takes place over 48 hours. Few data exist to describe whether any of these programs produce measurable improvements in indicators of engagement or dissemination of results.

In 2015, the Journal of Hospital Medicine (JHM) began producing a Twitter-based journal club as a means to connect and engage the Hospital Medicine community and allow for discussion and rapid exchange of information and opinions around a specific clinical topic. This study aims to describe the implementation of the first Journal-sponsored, Twitter-based online journal club and ascertain its impact on both Twitter and journal metrics.

METHODS

#JHMChat was launched in October 2015, and was initially held every 2-3 months until January 2017, when chats began to take place monthly. Each 1-hour chat focused on a recently published article in JHM, was moderated by a JHM social media editor (C.M.W., V.M.A.), and included at least 1 study author or guest expert. Articles were chosen by the social media editors based on the following criteria: (1) attractiveness to possible participants, (2) providing topic variety within the journal club series, and (3) sustainability and topic conduciveness to the online chat model. Chats were held at 9 PM EST in order to engage hospitalists across all US time zones and on different days to accommodate authors’ availability. All sessions were framed by 3-4 questions intended to encourage discussion and presented to chat participants at spaced intervals so as to stimulate a current of responses.

Chats were promoted by way of the JHM (@JHospMedicine, 3400 followers) and Society of Hospital Medicine (SHM; @SHMLive, 5800 followers) Twitter feeds beginning 1 month prior to each session. Visual Abstracts5,6 were used to publicize the sessions, also via Twitter, starting in February 2017.

Continuing Medical Education (CME) credits were offered through the SHM to registered participants, starting in July 2016.7 All sessions were cosponsored by the American Board of Internal Medicine (ABIM) Foundation and the Costs of Care Organization, a non-profit organization aimed at improving healthcare value.

 

 

Twitter Metrics

After each session, the following Twitter-based engagement metrics were obtained using the Symplur© Healthcare Hashtag project;8 total number of participants and tweets, tweets/participant, and total impressions (calculated as the number of tweets from each participant multiplied by the number of followers that participant currently had then summed up for all participants). Simply put, impressions can also be thought of as the number of times a single Tweet makes it into someone else’s Twitter feed. So as to avoid artificially inflated metrics, all were obtained 2 hours after the end of the journal club. Participants were defined as anyone who posted an original tweet or retweeted during the session and were encouraged to tag their tweets with the hashtag #JHMChat for post-discussion indexing and measurement. Because authors’ or guests’ popularity on Twitter may influence participation rates, we also assessed the number of followers for each participating author. Spearman’s rank correlation was calculated (Microsoft ExcelTM) where appropriate.

Altmetrics and Page Views

As a means to measure exposure and dissemination external to Twitter, we assessed the change (“Delta”) in the each article’s Altmetric score9, a digital-based metric that quantifies the attention received by a scientific publication on various online platforms including news, blogs, and social media. Delta Altmetric scores were calculated as the difference between the scores on the day of the session and 2 weeks after the respective session, with higher scores indicating greater global online discussion. By measuring the Altmetric score on the day of the discussion, we established a baseline score for comparison purposes. Additionally, this allowed us to better attribute any changes that may have occurred to the discussion itself.

Additionally, using information provided by the journal publisher (John Wiley & Sons Publishing) in 2016, we assessed the effect of #JHMChat on the number of article page views on the JHM website relative to the release of the electronic Table of Contents (eTOC). The eTOC release was chosen as it is historically associated with a high number of page views. In order to isolate the effect of #JHMChat, we only reviewed months in which #JHMChat was not held within 3 days of the eTOC release. Because JHM changed publishers in January 2017, we only assessed page view data on 2016 sessions, as the new publisher lacked enhanced search optimization to obtain these data.

Thematic Analysis

In addition to the above measurements, a thematic analysis of each article was conducted to assess any common themes that would influence our chosen metrics. Themes were assessed and ascribed by one author (C.M.W.) and verified by another (V.M.A.).

Participant and Author Experience

To assess the participant experience, responses to a post-session CME questionnaire that assessed (1) overall quality, (2) comprehensiveness of the discussion, (3) whether the participant would recommend the chat to a colleague, and (4) whether participation would lead to practice-changing measures were reviewed. Registration of each session for CME was also quantified. Finally, each participating author was asked to fill out an electronic post-chat survey (SurveyMonkey®) meant to assess the authors’ experience with the journal club (Appendix).

 

 

RESULTS

Between October 2015 and November 2017, a total of 15 sessions were held with a mean of 2.17 (±0.583) million impressions/session, 499 (±129) total tweets/session, and 73 (±24) participants/session (compared to a range of 21-58 participants/session from other online journal clubs, where reported) with 7.2 (±2.0) tweets/participant (Table 1). The total number of participants for all sessions was 1096. Participating authors had on average 1389 (±2714) followers, ranging from a low of 37 to a high of 10,376 (Appendix). No correlation between author following and number of participants (r = 0.19), impressions (r = 0.05), or change in Altmetric score (r = 0.17) was seen.

Thematic analysis revealed 3 predominant themes among the chosen articles: Value-based care (VBC), Quality and Patient Safety (QPS), and Medical Education (ME). Articles focused on VBC had the greatest number of impressions (mean ±SD: 2.61 ± 0.55 million) and participants (mean ±SD: 90 ± 12), while QPS articles had the fewest impressions (mean ±SD: 1.71 ± 0.59 million) and number of participants (mean ±SD: 47 ± 16). The mean increase in the Altmetric score among all discussed articles was 14 (±12), from an average baseline of 30 (±37). Medical Education-themed articles appeared to garner the greatest increase in Altmetric scores, averaging an increase of 32 points, compared with an average baseline score of 31 (±32). In contrast, VBC and QPS articles averaged an increase of 8.6 and 8.4 points, from average baselines of 55 (±53) and 17 (±13), respectively. A 2-month analysis of JHM articles not included in these discussions, in which Altmetric scores were measured in the same way as those from the discussion, revealed a baseline Altmetric score of 27 (±24) with an average increase of 8 (±6) 2 weeks following the chat.

Four articles met the inclusion criteria for page view analysis and suggested that article page views increased to similar levels as the eTOC release (mean: 2668 vs. 2998, respectively; P = .35) (Figure). These increases equate to a 33% and 50% increase in average daily page views (2002) for the chat and eTOC release, respectively.

On average, 10 (±8.0) individuals/session registered for CME, with 119 claiming CME credit in total. Forty-six percent (55/119) of participants completed the post-discussion questionnaire, with 93% and 87% reporting the sessions as ‘very good’ or ‘excellent’ with regard to overall quality and comprehensiveness of the session, respectively. Ninety-seven percent stated that they would recommend #JHMChat to a fellow colleague, and 95% stated that participation in the chat would change their practice patterns through any of the following: changing their personal practice, teaching others about the new practice, revising a protocol or institutional policy or procedure, or educating patients about the new practice (Table 2).

Ninety-three percent (14/15) of the participating authors responded to the post-discussion survey. All strongly agreed (5/5 on a Likert scale) that the venue allowed for an in-depth discussion about processes and challenges in conducting the study and allowed for greater dissemination and visibility of their work (5/5). Additionally, authors agreed that the journal club was a valuable experience for themselves (4.88/5) and other practitioners (4.88/5). Most agreed that the journal club allowed them to share their work with a different group of participants than usual (4.75/5) and that the experience changed how they would discuss their manuscripts in the future (4.75/5.0); Table 2).

 

 

DISCUSSION

The Twitter-based journal club #JHMChat appears to increase social media awareness and dissemination of journal articles and was considered a useful engagement platform by both authors and participants.

Articles with a focus on VBC and ME had the greatest impact on dissemination metrics, particularly, total impressions and Altmetric scores, respectively. Given the strong presence and interest in these topics within Twitter and social media, these findings are not surprising.10,11 For example, over the past several years, the VBC movement has taken shape and grown alongside the expansion of social media, thus giving a space for this community to grow and engage. Of note, the cosponsorship relationship with the ABIM Foundation (which works closely with the Choosing Wisely™ campaign) and the Costs of Care Organization could have influenced the participation and dissemination rates of VBC articles. Medical education articles were also popular and appeared to have increased uptake after chats, based on their Altmetric scores. This may be explained by the fact that medical educators have long utilized social media as a means to connect and engage within their community.12–14 It is also possible that the use of Twitter by trainees (residents, students) may have driven some of the dissemination of ME articles, as this group may not be regular subscribers to JHM.

Online journal clubs offer distinct advantages over traditional in-person journal clubs. First, online journal clubs allow for increased connectivity among online communities, bringing together participants from different geographic areas with diverse training and clinical experiences. Subsequently, this allows for the rapid exchange of both personal and organizational approaches to the topic of discussion.15–17 Second, online journal clubs allow for continual access to the discussion material. For example, while the metrics used in this study only assessed active, synchronous participation, anecdotal evidence and feedback to the authors suggests that many individuals passively engaged by following along or reviewed the chat feed post hoc at their convenience. This asynchronous access is a quality not found in more traditional journal club formats. Finally, because online journal clubs commonly operate with a flattened hierarchy,18 they can break down access barriers to both the researchers who performed the study and thought leaders who commonly participate.17

Several insightful lessons were gleaned in the production and management of this online journal club. On the implementation side, promotion, preparation, and continued organization of an online journal club requires a fair amount of work. In this case, the required time and resources were provided by 2 social media editors in addition to administrative assistance from the SHM. The high attrition rate of online journal clubs over the years attests to these difficulties.24 Additionally, finding incentives to attract and sustain participation can be difficult, as we noted that neither CME nor author popularity (based on their Twitter following) appeared to influence engagement metrics (number of participants, total tweets, and tweets/participant). We also found that partnering with other journal club communities, in particular #NephJC, lead to greater participation rates and impressions. Thus, leveraging connections and topics that span clinical domains may be one way to improve and broaden engagement within these forums. Finally, feedback from participants revealed that the timing of the journal club and the inability to have in-depth discussions, a characteristic commonly associated with traditional journal clubs, were problematic.

This study has several limitations. First, the metrics used to assess social media engagement and dissemination can be easily skewed. For instance, the activity of 1 or 2 individuals with large followings can dramatically influence the number of impressions, giving a falsely elevated sense of broad dissemination. Conversely, there may have been some participants who did not use the #JHMChat hashtag, thus leading to an underestimation in these metrics. Second, while we report total impressions as a measure of dissemination, this metric represents possible interactions and does not guarantee interaction or visualization of that tweet. Additionally, we were unable to characterize our participants and their participation rates over time, as this information is not made available through Symplur© analytics. Third, our page view assessment was limited to 2016 sessions only; therefore, these data may not be an accurate reflection of the impact of #JHMChat on this metric. Fourth, given the marginal response rate to our CME questionnaire, a selection bias could have occurred. Finally, whether social media discussions such as online journal clubs act as leading indicators for future citations remains unclear, as some research has shown an association between increased Altmetric scores and increased citation rates,19-21 while others have not.22,23 Our study was not equipped to assess this correlation.

 

 

CONCLUSION

Online journal clubs create new opportunities to connect, engage, and disseminate medical research. These developing forums provide journal editors, researchers, patients, and clinicians with a means to connect and discuss research in ways that were not previously possible. In order to continue to evolve and grow, future research in online journal clubs should explore the downstream effects on citation rates, clinical uptake, and participant knowledge after the sessions.

Acknowledgments

The authors would like to thank Felicia Steele for her assistance in organizing and promoting the chats. Additionally, the authors would like to thank all the authors, guests and participants who took time from their families, work, and daily lives to participate in these activities. Your time and presence were truly appreciated.

Disclosures

The authors of this article operate as the Social Media Editors (C.M.W., V.M.A.) and the Editor-in-Chief (A.A.) for the Journal of Hospital Medicine. Dr. Wray had full access to all the data in the project, takes responsibility for the integrity of the data, and the accuracy of the data analysis.

 

References

1. Topf JM, Sparks MA, Phelan PJ, et al. The evolution of the journal club: from osler to twitter. Am J Kidney Dis Off J Natl Kidney Found. 2017;69(6):827-836. doi: 10.1053/j.ajkd.2016.12.012. PubMed
2. Thangasamy IA, Leveridge M, Davies BJ, Finelli A, Stork B, Woo HH. International urology journal club via Twitter: 12-month experience. Eur Urol. 2014;66(1):112-117. doi: 10.1016/j.eururo.2014.01.034. PubMed
3. Gardhouse AI, Budd L, Yang SYC, Wong CL. #GeriMedJC: the Twitter complement to the traditional-format geriatric medicine journal club. J Am Geriatr Soc. 2017;65(6):1347-1351. doi: 10.1111/jgs.14920. PubMed
4. Duque L. How academics and researchers can get more out of social media. Harvard Business Review. https://hbr.org/2016/06/how-academics-and-researchers-can-get-more-out-of-social-media. Accessed November 9, 2017. 
5. Wray CM, Arora VM. #VisualAbstract: a revolution in communicating science? Ann Surg. 2017;266(6):e49-e50. doi: 10.1097/SLA.0000000000002339. PubMed
6. Ibrahim AM. Seeing is believing: using visual abstracts to disseminate scientific research. Am J Gastroenterol. 2017:ajg2017268. doi: 10.1038/ajg.2017.268. PubMed
7. #JHMChat. http://shm.hospitalmedicine.org/acton/media/25526/jhmchat. Accessed November 9, 2017.
8. #JHMChat-healthcare social media. Symplur. https://www.symplur.com/search/%23JHMChat. Accessed November 9, 2017.
9. Altmetric. Altmetric. https://www.altmetric.com/. Accessed November 9, 2017.
10. value-based healthcare | Symplur. https://www.symplur.com/topic/value-based-healthcare/. Accessed November 17, 2017.
11. medical education | Symplur. https://www.symplur.com/topic/medical-education/. Accessed November 17, 2017.
12. Sterling M, Leung P, Wright D, Bishop TF. The use of social media in graduate medical education: a systematic review. Acad Med. 2017;92(7):1043. doi: 10.1097/ACM.0000000000001617. PubMed
13. Davis WM, Ho K, Last J. Advancing social media in medical education. CMAJ Can Med Assoc J. 2015;187(8):549-550. doi: 10.1503/cmaj.141417. PubMed
14. Hillman T, Sherbino J. Social media in medical education: a new pedagogical paradigm? Postgrad Med J. 2015;91(1080):544-545. doi: 10.1136/postgradmedj-2015-133686. PubMed
15. Gerds AT, Chan T. Social media in hematology in 2017: dystopia, utopia, or somewhere in-between? Curr Hematol Malig Rep. 2017;12(6):582-591. doi: 10.1007/s11899-017-0424-8. PubMed
16. Mehta N, Flickinger T. The times they are a-changin’: academia, social media and the JGIM Twitter Journal Club. J Gen Intern Med. 2014;29(10):1317-1318. doi: 10.1007/s11606-014-2976-9. PubMed
17. Chan T, Trueger NS, Roland D, Thoma B. Evidence-based medicine in the era of social media: scholarly engagement through participation and online interaction. CJEM. 2017:1-6. doi: 10.1017/cem.2016.407. PubMed
18. Utengen A. The flattening of healthcare: breaking down of barriers in healthcare social media-twitter visualized. https://www.symplur.com/shorts/the-flattening-of-healthcare-twitter-visualized/. Accessed November 8, 2017. 
19. Thelwall M, Haustein S, Larivière V, Sugimoto CR. Do altmetrics work? Twitter and ten other social web services. PloS One. 2013;8(5):e64841. doi: 10.1371/journal.pone.0064841. PubMed
20. Peoples BK, Midway SR, Sackett D, Lynch A, Cooney PB. Twitter predicts citation rates of ecological research. PloS One. 2016;11(11):e0166570. doi: 10.1371/journal.pone.0166570. PubMed
21. Eysenbach G. Can tweets predict citations? Metrics of social impact based on Twitter and correlation with traditional metrics of scientific impact. J Med Internet Res. 2011;13(4):e123. doi: 10.2196/jmir.2012. PubMed
22. Winter JCF de. The relationship between tweets, citations, and article views for PLOS ONE articles. Scientometrics. 2015;102(2):1773-1779. doi: 10.1007/s11192-014-1445-x. 
23. Haustein S, Peters I, Sugimoto CR, Thelwall M, Larivière V. Tweeting biomedicine: an analysis of tweets and citations in the biomedical literature. J Assoc Inf Sci Technol. 2014;65(4):656-669. doi: 10.1002/asi.23101. 
24. Journal club. In: Wikipedia. 2017. https://en.wikipedia.org/w/index.php?title=Journal_club&oldid=807037773. Accessed November 9, 2017.

References

1. Topf JM, Sparks MA, Phelan PJ, et al. The evolution of the journal club: from osler to twitter. Am J Kidney Dis Off J Natl Kidney Found. 2017;69(6):827-836. doi: 10.1053/j.ajkd.2016.12.012. PubMed
2. Thangasamy IA, Leveridge M, Davies BJ, Finelli A, Stork B, Woo HH. International urology journal club via Twitter: 12-month experience. Eur Urol. 2014;66(1):112-117. doi: 10.1016/j.eururo.2014.01.034. PubMed
3. Gardhouse AI, Budd L, Yang SYC, Wong CL. #GeriMedJC: the Twitter complement to the traditional-format geriatric medicine journal club. J Am Geriatr Soc. 2017;65(6):1347-1351. doi: 10.1111/jgs.14920. PubMed
4. Duque L. How academics and researchers can get more out of social media. Harvard Business Review. https://hbr.org/2016/06/how-academics-and-researchers-can-get-more-out-of-social-media. Accessed November 9, 2017. 
5. Wray CM, Arora VM. #VisualAbstract: a revolution in communicating science? Ann Surg. 2017;266(6):e49-e50. doi: 10.1097/SLA.0000000000002339. PubMed
6. Ibrahim AM. Seeing is believing: using visual abstracts to disseminate scientific research. Am J Gastroenterol. 2017:ajg2017268. doi: 10.1038/ajg.2017.268. PubMed
7. #JHMChat. http://shm.hospitalmedicine.org/acton/media/25526/jhmchat. Accessed November 9, 2017.
8. #JHMChat-healthcare social media. Symplur. https://www.symplur.com/search/%23JHMChat. Accessed November 9, 2017.
9. Altmetric. Altmetric. https://www.altmetric.com/. Accessed November 9, 2017.
10. value-based healthcare | Symplur. https://www.symplur.com/topic/value-based-healthcare/. Accessed November 17, 2017.
11. medical education | Symplur. https://www.symplur.com/topic/medical-education/. Accessed November 17, 2017.
12. Sterling M, Leung P, Wright D, Bishop TF. The use of social media in graduate medical education: a systematic review. Acad Med. 2017;92(7):1043. doi: 10.1097/ACM.0000000000001617. PubMed
13. Davis WM, Ho K, Last J. Advancing social media in medical education. CMAJ Can Med Assoc J. 2015;187(8):549-550. doi: 10.1503/cmaj.141417. PubMed
14. Hillman T, Sherbino J. Social media in medical education: a new pedagogical paradigm? Postgrad Med J. 2015;91(1080):544-545. doi: 10.1136/postgradmedj-2015-133686. PubMed
15. Gerds AT, Chan T. Social media in hematology in 2017: dystopia, utopia, or somewhere in-between? Curr Hematol Malig Rep. 2017;12(6):582-591. doi: 10.1007/s11899-017-0424-8. PubMed
16. Mehta N, Flickinger T. The times they are a-changin’: academia, social media and the JGIM Twitter Journal Club. J Gen Intern Med. 2014;29(10):1317-1318. doi: 10.1007/s11606-014-2976-9. PubMed
17. Chan T, Trueger NS, Roland D, Thoma B. Evidence-based medicine in the era of social media: scholarly engagement through participation and online interaction. CJEM. 2017:1-6. doi: 10.1017/cem.2016.407. PubMed
18. Utengen A. The flattening of healthcare: breaking down of barriers in healthcare social media-twitter visualized. https://www.symplur.com/shorts/the-flattening-of-healthcare-twitter-visualized/. Accessed November 8, 2017. 
19. Thelwall M, Haustein S, Larivière V, Sugimoto CR. Do altmetrics work? Twitter and ten other social web services. PloS One. 2013;8(5):e64841. doi: 10.1371/journal.pone.0064841. PubMed
20. Peoples BK, Midway SR, Sackett D, Lynch A, Cooney PB. Twitter predicts citation rates of ecological research. PloS One. 2016;11(11):e0166570. doi: 10.1371/journal.pone.0166570. PubMed
21. Eysenbach G. Can tweets predict citations? Metrics of social impact based on Twitter and correlation with traditional metrics of scientific impact. J Med Internet Res. 2011;13(4):e123. doi: 10.2196/jmir.2012. PubMed
22. Winter JCF de. The relationship between tweets, citations, and article views for PLOS ONE articles. Scientometrics. 2015;102(2):1773-1779. doi: 10.1007/s11192-014-1445-x. 
23. Haustein S, Peters I, Sugimoto CR, Thelwall M, Larivière V. Tweeting biomedicine: an analysis of tweets and citations in the biomedical literature. J Assoc Inf Sci Technol. 2014;65(4):656-669. doi: 10.1002/asi.23101. 
24. Journal club. In: Wikipedia. 2017. https://en.wikipedia.org/w/index.php?title=Journal_club&oldid=807037773. Accessed November 9, 2017.

Issue
Journal of Hospital Medicine 13(11)
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Journal of Hospital Medicine 13(11)
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Charlie M. Wray, DO, MS, San Francisco Veterans Affairs Medical Center, University of California, San Francisco, 4150 Clement Street, San Francisco, CA 94121; Telephone: 415-595-9662; Fax: 415-221-4810; E-mail: [email protected]
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Current Perspectives on Transport Medicine in Pediatric Hospital Medicine Fellowships

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Transport medicine (TM) involves the provision of care to patients who require transfer to a healthcare facility that can deliver definitive treatment.1 Pediatric interfacility transport occurs in approximately 10% of nonneonatal, nonpregnancy pediatric hospitalizations in the United States.2 Studies document a decline in resident participation in pediatric transports and variability in curricular content.3,4As a result, pediatric hospitalists, who often serve as the referring, accepting, transport, and/or medical control physician during interfacility transports,5,6 may have gaps in training related to TM.

The Pediatric Hospital Medicine (PHM) Core Competencies include “Transport of the Critically Ill Child.”7 Additionally, the Curriculum Committee of the PHM Fellowship Directors Council proposed a curricular framework that includes a required clinical experience in “Care and Stabilization of the Critically Ill Child,”8 which can occur in a variety of practice settings, including TM. TM is also listed as a potential elective rotation.

In 2014, 60% of PHM fellowships included a required or optional TM rotation.9 A recent study of pediatric emergency, critical care, and neonatal medicine fellowships revealed a paucity of formal or published TM curricula in these programs.10 Furthermore, no standard or published TM curricula have been established for PHM fellowships. The primary objective of our study is to determine attitudes regarding TM training among PHM fellows, recent PHM fellowship graduates, and PHM fellowship program directors (PDs). The secondary objective is to identify how the perspectives of these fellowship stakeholders could influence the design of a TM curriculum.

METHODS

This cross-sectional study focused on 3 stakeholder groups related to PHM fellowships. The subjects included in the study were physicians enrolled in a PHM fellowship (fellow) during the 2015-2016 academic year, graduates of fellowship (graduate) between 2010 and 2015, and fellowship program directors (PD). Unique web-based, anonymous surveys for each group were developed, reviewed by content and methodology experts, and piloted with local pediatric hospitalists. Surveys consisted of unfolding multiple-choice questions and ranking items along Likert scales and the Dreyfus model.

Questions were designed to elicit demographic data, perspectives, and experience related to TM education in PHM fellowships across all respondent groups. Depending on the context, identical or similar questions were asked among the groups. For example, all groups were asked to prioritize learning objectives for a TM rotation. Graduates and PDs reported the most effective teaching methods for use during a TM rotation. Fellows rated their own interest in a TM elective, and PDs were asked to rate the level of interest among their fellows.

Participant contact information was obtained from a website (phmfellows.org) and databases of fellows and graduates, which are maintained by the PHM Fellowship Directors Council (personal communication, Jayne Truckenbrod, DO; February 2, 2017). Between February and April 2016, the participants were individually emailed a link to their respective surveys, and 3 reminder e-mails were sent to nonresponders. The survey was administered through SurveyMonkey (www.surveymonkey.com).

SPSS (IBM SPSS Statistics, IBM Corporation, Armonk, New York) was used for statistical analysis. Descriptive data were presented using mean and standard deviation. Comparisons among fellows, graduates, and PDs were conducted using one-way analyses of variance or Mann-Whitney U test. Frequency of application and self-evaluation of core competency skills before and after the rotation were evaluated using paired sample t-tests. The study protocol was deemed exempt from review by our local Institutional Review Board.

RESULTS

Forty of 70 (57%) fellows, 32 of 87 graduates (37%), and 14 of 32 PDs (44%) responded to the survey. The majority of the participants described their respective programs as 2 years in duration (59% for fellows, 56% for graduates, and 85% for PDs). Most programs (85%) were based at children’s hospitals. Most graduates (84%) practiced in a children’s hospital, and 12% of them practiced in a community site or a combination of sites.

Both fellows and graduates reported limited involvement in several aspects of TM prior to fellowship. Fellows’ interest in completing a TM rotation during fellowship is greater than the interest as perceived by PDs (3.03+1.00 vs. 2.38+1.19, P = .061). Prior TM exposure in residency or perceived proficiency in TM was not associated with lack of interest. Twenty-five percent of graduates completed a TM rotation during PHM fellowship. Many graduates agreed (41%) or strongly agreed (16%) with the statement “I recommend participating in a TM rotation during PHM fellowship.” Graduates who had completed a TM rotation were more likely to agree with this statement (P = .001).

 

 



There were similarities between reservations about participating in a TM rotation among fellows and barriers identified by graduates and PDs (Table). However, no graduates cited lack of relevance to a career in PHM as a barrier to participation in a TM rotation. Fellows, graduates, and PDs reported concordant responses regarding the prioritization of learning objectives for a TM rotation (Table). Both graduates and PDs ranked active learning strategies, such as direct patient care and simulation, as the most effective methods for teaching TM.


Discordance was noted between how frequently fellows participated in aspects of TM during fellowship and graduates’ current practice of PHM (Figure). With regard to select TM-related PHM core competencies, such as respiratory failure, shock, and leading a healthcare team, most (63%–90%, depending on the competency) fellows perceived themselves as “competent” prior to the start of the fellowship. Nevertheless, more than 70% of fellows remained very or extremely interested in gaining additional experience in each competency during fellowship.

DISCUSSION

Survey respondents demonstrate variable levels of interest and engagement in TM training; in particular, fellows and graduates often reported greater interest and value in a TM rotation than PDs. Similar to fellows in related fields,10 PHM fellows and graduates selected clinical topics as the most essential elements of TM training. In accordance with the literature, our findings suggest that direct patient care, one-on-one instruction, and simulation would be appropriate and popular methods for delivering this type of educational content.10,11

Curriculum design for a TM rotation should reinforce clinical PHM competencies related to TM while focusing on topics that are specific to the transport environment, such as methods of interfacility transport, handoffs, transitions of care, and team leadership.2,7,12 Trainee comfort level with different forms of transport (eg, fear of flying, motion sickness) and local and state policies regarding interfacility transfer should also be considered. In addition, fellows could engage in clinical research and quality improvement projects related to TM given the overall paucity of literature in the field.13

Several reasons can explain why fellows and graduates place a greater value on a TM rotation than PDs. Fellows and graduates may perceive inherent value in gaining particular knowledge and skills, such as greater understanding of the logistics and personnel involved in transferring patients and experience working with a healthcare team in a unique and dynamic setting.3,10,14Meanwhile, PDs may have had limited personal exposure to TM or may underestimate the limited exposure to TM for fellows while in residency.3

PDs may not be aware of the extent of participation in elements of transport among graduates. A recent workforce survey of pediatric interfacility transport systems indicated that although medical directors are from the fields of emergency, critical care, and neonatal medicine, 20% of medical control physicians are pediatric hospitalists.4 Given that the majority of PHM fellowships are based at children’s hospitals and transport teams are often associated with intensive care or emergency medicine units, PDs may have limited exposure to transport systems that incorporate hospitalists.

Pediatric hospitalists at all practice sites must have clinical and systems skills related to TM. However, the scope of practice for those working at community sites may be more likely to include distinct elements of TM.6 Currently, most fellowship graduates work at free-standing children’s or university-affiliated hospitals and have pursued careers in academic medicine.15 As the field evolves, the number of fellowship-trained pediatric hospitalists working at community sites may increase, making the acquisition of skills relevant to TM during fellowship training more crucial.

This study has several limitations. We attempted to identify all recent PHM fellowship graduates, but sampling bias may exist. Response bias may have been introduced by the self-reporting of skill and proficiency as well as by the small sample size and response rate for some stakeholder groups. The latter may be exacerbated by the fact that we do not have data on the degree or distribution of program representation among the fellow and graduate groups, given the lack of identifying information collected. Finally, we did not collect specific information about existing TM curricula in PHM fellowships.

We report a variable level of interest and engagement in TM among fellowship stakeholders, even though “Transport of the Critically Ill Child” is a PHM Core Competency. Fellows are interested in TM but unsure of its relevance to a PHM career. Graduates support the acquisition of transport skills during fellowship training. We found agreement about the opportunity to teach core PHM knowledge and skills through a TM experience. Formal curricula, locally and nationally, could improve trainees’ transport skills and provide a means for addressing an essential component of the proposed PHM fellowship curricular framework.

 

 

ACKNOWLEDGMENTS

The authors would like to thank Tony Woodward, MD for reviewing the survey tools; Sheree Schrager, PhD and Margaret Trost, MD for their valuable insights into the results; and Grant Christman, MD for reviewing the manuscript.

Disclosures

The authors declare no potential conflicts of interest.

Funding

No funding was secured for this study.

References

1. Insoft RM, Schwartz HP, Romito J. Guidelines for Air and Ground Transport of Neonatal and Pediatric Patients., 4th ed. Elk Grove Village, IL: American Academy of Pediatrics; 2016.
2. Rosenthal JL, Romano PS, Kokroko J, Gu W, Okumura MJ. Profiling interfacility transfers for hospitalized pediatric patients. Hosp Pediatr. 2017;7(6):335-343. PubMed
3. Kline-Krammes S, Wheeler DS, Schwartz HP, Forbes M, Bigham MT. Missed opportunities during pediatric residency training. Report of a 10-year follow-up survey in critical care transport medicine. Pediatr Emerg Care. 2012;28(1):1-5. PubMed
4. Tanem J, Triscari D, Chan M, Meyer MT. Workforce survey of pediatric interfacility transport systems in the United States. Pediatr Emer Care. 2016;32(6):364-370. PubMed
5. Freed GL, Dunham KM. Pediatric hospitalists: training, current practice, and career goals. J Hosp Med. 2009;4(3):179-186. PubMed
6. Roberts KB. Pediatric hospitalists in community hospitals: hospital-based generalists with expanded roles. Hosp Pediatr. 2015;5(5):290-292. PubMed
7. Stucky ER, Maniscalco J, Ottolini MC, et al. The Pediatric Hospital Medicine Core Competencies Supplement: a Framework for Curriculum Development by the Society of Hospital Medicine with acknowledgement to pediatric hospitalists from the American Academy of Pediatrics and the Academic Pediatric Association. J Hosp Med. 2010;5(suppl 2):i-xv, 1-114. PubMed
8. Jerardi KE, Fisher E, Rassbach C, et al. Development of a Curricular Framework for Pediatric Hospital Medicine Fellowships. Pediatrics. 2017;140(1):1-8. PubMed
9. Shah NH, Rhim HJH, Maniscalco J, Wilson K, Rassbach C. The current state of pediatric hospital medicine fellowships: A survey of program directors. J Hosp Med. 2016;11(5):324-328. PubMed
10. Mickells GE, Goodman DM, Rozenfeld RA. Education of pediatric subspecialty fellows in transport medicine: a national survey. BMC Pediatrics. 2017;17(1):13. PubMed
11. Cross B, Wilson D. High-fidelity simulation for transport team training and competency evaluation. Newborn Inf Nurs Rev. 2009;9(4):200-206. 
12. Weingart C, Herstich T, Baker P, et al. Making good better: implementing a standardized handoff in pediatric transport. Air Med J. 2013;32(1):40-46. PubMed
13. Kandil SB, Sanford HA, Northrup V, Bigham MT, Giuliano Jr. JS. Transport disposition using transport risk assessment in pediatrics (TRAP) score. Prehosp Emerg Care. 2012;16(3):366-373. PubMed
14. Giardino AP, Tran XG, King J, Giardino ER, Woodward GA, Durbin DR. A longitudinal view of resident education in pediatric emergency interhospital transport. Pediatr Emerg Care. 2010;26(9):653-658. PubMed
15. Oshimurua JM, Bauer BD, Shah N, Nguyen N, Maniscalco J. Current roles and perceived needs of pediatric hospital medicine fellowship graduates. Hosp Pediatr. 2016;6(10):633-637 PubMed

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Transport medicine (TM) involves the provision of care to patients who require transfer to a healthcare facility that can deliver definitive treatment.1 Pediatric interfacility transport occurs in approximately 10% of nonneonatal, nonpregnancy pediatric hospitalizations in the United States.2 Studies document a decline in resident participation in pediatric transports and variability in curricular content.3,4As a result, pediatric hospitalists, who often serve as the referring, accepting, transport, and/or medical control physician during interfacility transports,5,6 may have gaps in training related to TM.

The Pediatric Hospital Medicine (PHM) Core Competencies include “Transport of the Critically Ill Child.”7 Additionally, the Curriculum Committee of the PHM Fellowship Directors Council proposed a curricular framework that includes a required clinical experience in “Care and Stabilization of the Critically Ill Child,”8 which can occur in a variety of practice settings, including TM. TM is also listed as a potential elective rotation.

In 2014, 60% of PHM fellowships included a required or optional TM rotation.9 A recent study of pediatric emergency, critical care, and neonatal medicine fellowships revealed a paucity of formal or published TM curricula in these programs.10 Furthermore, no standard or published TM curricula have been established for PHM fellowships. The primary objective of our study is to determine attitudes regarding TM training among PHM fellows, recent PHM fellowship graduates, and PHM fellowship program directors (PDs). The secondary objective is to identify how the perspectives of these fellowship stakeholders could influence the design of a TM curriculum.

METHODS

This cross-sectional study focused on 3 stakeholder groups related to PHM fellowships. The subjects included in the study were physicians enrolled in a PHM fellowship (fellow) during the 2015-2016 academic year, graduates of fellowship (graduate) between 2010 and 2015, and fellowship program directors (PD). Unique web-based, anonymous surveys for each group were developed, reviewed by content and methodology experts, and piloted with local pediatric hospitalists. Surveys consisted of unfolding multiple-choice questions and ranking items along Likert scales and the Dreyfus model.

Questions were designed to elicit demographic data, perspectives, and experience related to TM education in PHM fellowships across all respondent groups. Depending on the context, identical or similar questions were asked among the groups. For example, all groups were asked to prioritize learning objectives for a TM rotation. Graduates and PDs reported the most effective teaching methods for use during a TM rotation. Fellows rated their own interest in a TM elective, and PDs were asked to rate the level of interest among their fellows.

Participant contact information was obtained from a website (phmfellows.org) and databases of fellows and graduates, which are maintained by the PHM Fellowship Directors Council (personal communication, Jayne Truckenbrod, DO; February 2, 2017). Between February and April 2016, the participants were individually emailed a link to their respective surveys, and 3 reminder e-mails were sent to nonresponders. The survey was administered through SurveyMonkey (www.surveymonkey.com).

SPSS (IBM SPSS Statistics, IBM Corporation, Armonk, New York) was used for statistical analysis. Descriptive data were presented using mean and standard deviation. Comparisons among fellows, graduates, and PDs were conducted using one-way analyses of variance or Mann-Whitney U test. Frequency of application and self-evaluation of core competency skills before and after the rotation were evaluated using paired sample t-tests. The study protocol was deemed exempt from review by our local Institutional Review Board.

RESULTS

Forty of 70 (57%) fellows, 32 of 87 graduates (37%), and 14 of 32 PDs (44%) responded to the survey. The majority of the participants described their respective programs as 2 years in duration (59% for fellows, 56% for graduates, and 85% for PDs). Most programs (85%) were based at children’s hospitals. Most graduates (84%) practiced in a children’s hospital, and 12% of them practiced in a community site or a combination of sites.

Both fellows and graduates reported limited involvement in several aspects of TM prior to fellowship. Fellows’ interest in completing a TM rotation during fellowship is greater than the interest as perceived by PDs (3.03+1.00 vs. 2.38+1.19, P = .061). Prior TM exposure in residency or perceived proficiency in TM was not associated with lack of interest. Twenty-five percent of graduates completed a TM rotation during PHM fellowship. Many graduates agreed (41%) or strongly agreed (16%) with the statement “I recommend participating in a TM rotation during PHM fellowship.” Graduates who had completed a TM rotation were more likely to agree with this statement (P = .001).

 

 



There were similarities between reservations about participating in a TM rotation among fellows and barriers identified by graduates and PDs (Table). However, no graduates cited lack of relevance to a career in PHM as a barrier to participation in a TM rotation. Fellows, graduates, and PDs reported concordant responses regarding the prioritization of learning objectives for a TM rotation (Table). Both graduates and PDs ranked active learning strategies, such as direct patient care and simulation, as the most effective methods for teaching TM.


Discordance was noted between how frequently fellows participated in aspects of TM during fellowship and graduates’ current practice of PHM (Figure). With regard to select TM-related PHM core competencies, such as respiratory failure, shock, and leading a healthcare team, most (63%–90%, depending on the competency) fellows perceived themselves as “competent” prior to the start of the fellowship. Nevertheless, more than 70% of fellows remained very or extremely interested in gaining additional experience in each competency during fellowship.

DISCUSSION

Survey respondents demonstrate variable levels of interest and engagement in TM training; in particular, fellows and graduates often reported greater interest and value in a TM rotation than PDs. Similar to fellows in related fields,10 PHM fellows and graduates selected clinical topics as the most essential elements of TM training. In accordance with the literature, our findings suggest that direct patient care, one-on-one instruction, and simulation would be appropriate and popular methods for delivering this type of educational content.10,11

Curriculum design for a TM rotation should reinforce clinical PHM competencies related to TM while focusing on topics that are specific to the transport environment, such as methods of interfacility transport, handoffs, transitions of care, and team leadership.2,7,12 Trainee comfort level with different forms of transport (eg, fear of flying, motion sickness) and local and state policies regarding interfacility transfer should also be considered. In addition, fellows could engage in clinical research and quality improvement projects related to TM given the overall paucity of literature in the field.13

Several reasons can explain why fellows and graduates place a greater value on a TM rotation than PDs. Fellows and graduates may perceive inherent value in gaining particular knowledge and skills, such as greater understanding of the logistics and personnel involved in transferring patients and experience working with a healthcare team in a unique and dynamic setting.3,10,14Meanwhile, PDs may have had limited personal exposure to TM or may underestimate the limited exposure to TM for fellows while in residency.3

PDs may not be aware of the extent of participation in elements of transport among graduates. A recent workforce survey of pediatric interfacility transport systems indicated that although medical directors are from the fields of emergency, critical care, and neonatal medicine, 20% of medical control physicians are pediatric hospitalists.4 Given that the majority of PHM fellowships are based at children’s hospitals and transport teams are often associated with intensive care or emergency medicine units, PDs may have limited exposure to transport systems that incorporate hospitalists.

Pediatric hospitalists at all practice sites must have clinical and systems skills related to TM. However, the scope of practice for those working at community sites may be more likely to include distinct elements of TM.6 Currently, most fellowship graduates work at free-standing children’s or university-affiliated hospitals and have pursued careers in academic medicine.15 As the field evolves, the number of fellowship-trained pediatric hospitalists working at community sites may increase, making the acquisition of skills relevant to TM during fellowship training more crucial.

This study has several limitations. We attempted to identify all recent PHM fellowship graduates, but sampling bias may exist. Response bias may have been introduced by the self-reporting of skill and proficiency as well as by the small sample size and response rate for some stakeholder groups. The latter may be exacerbated by the fact that we do not have data on the degree or distribution of program representation among the fellow and graduate groups, given the lack of identifying information collected. Finally, we did not collect specific information about existing TM curricula in PHM fellowships.

We report a variable level of interest and engagement in TM among fellowship stakeholders, even though “Transport of the Critically Ill Child” is a PHM Core Competency. Fellows are interested in TM but unsure of its relevance to a PHM career. Graduates support the acquisition of transport skills during fellowship training. We found agreement about the opportunity to teach core PHM knowledge and skills through a TM experience. Formal curricula, locally and nationally, could improve trainees’ transport skills and provide a means for addressing an essential component of the proposed PHM fellowship curricular framework.

 

 

ACKNOWLEDGMENTS

The authors would like to thank Tony Woodward, MD for reviewing the survey tools; Sheree Schrager, PhD and Margaret Trost, MD for their valuable insights into the results; and Grant Christman, MD for reviewing the manuscript.

Disclosures

The authors declare no potential conflicts of interest.

Funding

No funding was secured for this study.

Transport medicine (TM) involves the provision of care to patients who require transfer to a healthcare facility that can deliver definitive treatment.1 Pediatric interfacility transport occurs in approximately 10% of nonneonatal, nonpregnancy pediatric hospitalizations in the United States.2 Studies document a decline in resident participation in pediatric transports and variability in curricular content.3,4As a result, pediatric hospitalists, who often serve as the referring, accepting, transport, and/or medical control physician during interfacility transports,5,6 may have gaps in training related to TM.

The Pediatric Hospital Medicine (PHM) Core Competencies include “Transport of the Critically Ill Child.”7 Additionally, the Curriculum Committee of the PHM Fellowship Directors Council proposed a curricular framework that includes a required clinical experience in “Care and Stabilization of the Critically Ill Child,”8 which can occur in a variety of practice settings, including TM. TM is also listed as a potential elective rotation.

In 2014, 60% of PHM fellowships included a required or optional TM rotation.9 A recent study of pediatric emergency, critical care, and neonatal medicine fellowships revealed a paucity of formal or published TM curricula in these programs.10 Furthermore, no standard or published TM curricula have been established for PHM fellowships. The primary objective of our study is to determine attitudes regarding TM training among PHM fellows, recent PHM fellowship graduates, and PHM fellowship program directors (PDs). The secondary objective is to identify how the perspectives of these fellowship stakeholders could influence the design of a TM curriculum.

METHODS

This cross-sectional study focused on 3 stakeholder groups related to PHM fellowships. The subjects included in the study were physicians enrolled in a PHM fellowship (fellow) during the 2015-2016 academic year, graduates of fellowship (graduate) between 2010 and 2015, and fellowship program directors (PD). Unique web-based, anonymous surveys for each group were developed, reviewed by content and methodology experts, and piloted with local pediatric hospitalists. Surveys consisted of unfolding multiple-choice questions and ranking items along Likert scales and the Dreyfus model.

Questions were designed to elicit demographic data, perspectives, and experience related to TM education in PHM fellowships across all respondent groups. Depending on the context, identical or similar questions were asked among the groups. For example, all groups were asked to prioritize learning objectives for a TM rotation. Graduates and PDs reported the most effective teaching methods for use during a TM rotation. Fellows rated their own interest in a TM elective, and PDs were asked to rate the level of interest among their fellows.

Participant contact information was obtained from a website (phmfellows.org) and databases of fellows and graduates, which are maintained by the PHM Fellowship Directors Council (personal communication, Jayne Truckenbrod, DO; February 2, 2017). Between February and April 2016, the participants were individually emailed a link to their respective surveys, and 3 reminder e-mails were sent to nonresponders. The survey was administered through SurveyMonkey (www.surveymonkey.com).

SPSS (IBM SPSS Statistics, IBM Corporation, Armonk, New York) was used for statistical analysis. Descriptive data were presented using mean and standard deviation. Comparisons among fellows, graduates, and PDs were conducted using one-way analyses of variance or Mann-Whitney U test. Frequency of application and self-evaluation of core competency skills before and after the rotation were evaluated using paired sample t-tests. The study protocol was deemed exempt from review by our local Institutional Review Board.

RESULTS

Forty of 70 (57%) fellows, 32 of 87 graduates (37%), and 14 of 32 PDs (44%) responded to the survey. The majority of the participants described their respective programs as 2 years in duration (59% for fellows, 56% for graduates, and 85% for PDs). Most programs (85%) were based at children’s hospitals. Most graduates (84%) practiced in a children’s hospital, and 12% of them practiced in a community site or a combination of sites.

Both fellows and graduates reported limited involvement in several aspects of TM prior to fellowship. Fellows’ interest in completing a TM rotation during fellowship is greater than the interest as perceived by PDs (3.03+1.00 vs. 2.38+1.19, P = .061). Prior TM exposure in residency or perceived proficiency in TM was not associated with lack of interest. Twenty-five percent of graduates completed a TM rotation during PHM fellowship. Many graduates agreed (41%) or strongly agreed (16%) with the statement “I recommend participating in a TM rotation during PHM fellowship.” Graduates who had completed a TM rotation were more likely to agree with this statement (P = .001).

 

 



There were similarities between reservations about participating in a TM rotation among fellows and barriers identified by graduates and PDs (Table). However, no graduates cited lack of relevance to a career in PHM as a barrier to participation in a TM rotation. Fellows, graduates, and PDs reported concordant responses regarding the prioritization of learning objectives for a TM rotation (Table). Both graduates and PDs ranked active learning strategies, such as direct patient care and simulation, as the most effective methods for teaching TM.


Discordance was noted between how frequently fellows participated in aspects of TM during fellowship and graduates’ current practice of PHM (Figure). With regard to select TM-related PHM core competencies, such as respiratory failure, shock, and leading a healthcare team, most (63%–90%, depending on the competency) fellows perceived themselves as “competent” prior to the start of the fellowship. Nevertheless, more than 70% of fellows remained very or extremely interested in gaining additional experience in each competency during fellowship.

DISCUSSION

Survey respondents demonstrate variable levels of interest and engagement in TM training; in particular, fellows and graduates often reported greater interest and value in a TM rotation than PDs. Similar to fellows in related fields,10 PHM fellows and graduates selected clinical topics as the most essential elements of TM training. In accordance with the literature, our findings suggest that direct patient care, one-on-one instruction, and simulation would be appropriate and popular methods for delivering this type of educational content.10,11

Curriculum design for a TM rotation should reinforce clinical PHM competencies related to TM while focusing on topics that are specific to the transport environment, such as methods of interfacility transport, handoffs, transitions of care, and team leadership.2,7,12 Trainee comfort level with different forms of transport (eg, fear of flying, motion sickness) and local and state policies regarding interfacility transfer should also be considered. In addition, fellows could engage in clinical research and quality improvement projects related to TM given the overall paucity of literature in the field.13

Several reasons can explain why fellows and graduates place a greater value on a TM rotation than PDs. Fellows and graduates may perceive inherent value in gaining particular knowledge and skills, such as greater understanding of the logistics and personnel involved in transferring patients and experience working with a healthcare team in a unique and dynamic setting.3,10,14Meanwhile, PDs may have had limited personal exposure to TM or may underestimate the limited exposure to TM for fellows while in residency.3

PDs may not be aware of the extent of participation in elements of transport among graduates. A recent workforce survey of pediatric interfacility transport systems indicated that although medical directors are from the fields of emergency, critical care, and neonatal medicine, 20% of medical control physicians are pediatric hospitalists.4 Given that the majority of PHM fellowships are based at children’s hospitals and transport teams are often associated with intensive care or emergency medicine units, PDs may have limited exposure to transport systems that incorporate hospitalists.

Pediatric hospitalists at all practice sites must have clinical and systems skills related to TM. However, the scope of practice for those working at community sites may be more likely to include distinct elements of TM.6 Currently, most fellowship graduates work at free-standing children’s or university-affiliated hospitals and have pursued careers in academic medicine.15 As the field evolves, the number of fellowship-trained pediatric hospitalists working at community sites may increase, making the acquisition of skills relevant to TM during fellowship training more crucial.

This study has several limitations. We attempted to identify all recent PHM fellowship graduates, but sampling bias may exist. Response bias may have been introduced by the self-reporting of skill and proficiency as well as by the small sample size and response rate for some stakeholder groups. The latter may be exacerbated by the fact that we do not have data on the degree or distribution of program representation among the fellow and graduate groups, given the lack of identifying information collected. Finally, we did not collect specific information about existing TM curricula in PHM fellowships.

We report a variable level of interest and engagement in TM among fellowship stakeholders, even though “Transport of the Critically Ill Child” is a PHM Core Competency. Fellows are interested in TM but unsure of its relevance to a PHM career. Graduates support the acquisition of transport skills during fellowship training. We found agreement about the opportunity to teach core PHM knowledge and skills through a TM experience. Formal curricula, locally and nationally, could improve trainees’ transport skills and provide a means for addressing an essential component of the proposed PHM fellowship curricular framework.

 

 

ACKNOWLEDGMENTS

The authors would like to thank Tony Woodward, MD for reviewing the survey tools; Sheree Schrager, PhD and Margaret Trost, MD for their valuable insights into the results; and Grant Christman, MD for reviewing the manuscript.

Disclosures

The authors declare no potential conflicts of interest.

Funding

No funding was secured for this study.

References

1. Insoft RM, Schwartz HP, Romito J. Guidelines for Air and Ground Transport of Neonatal and Pediatric Patients., 4th ed. Elk Grove Village, IL: American Academy of Pediatrics; 2016.
2. Rosenthal JL, Romano PS, Kokroko J, Gu W, Okumura MJ. Profiling interfacility transfers for hospitalized pediatric patients. Hosp Pediatr. 2017;7(6):335-343. PubMed
3. Kline-Krammes S, Wheeler DS, Schwartz HP, Forbes M, Bigham MT. Missed opportunities during pediatric residency training. Report of a 10-year follow-up survey in critical care transport medicine. Pediatr Emerg Care. 2012;28(1):1-5. PubMed
4. Tanem J, Triscari D, Chan M, Meyer MT. Workforce survey of pediatric interfacility transport systems in the United States. Pediatr Emer Care. 2016;32(6):364-370. PubMed
5. Freed GL, Dunham KM. Pediatric hospitalists: training, current practice, and career goals. J Hosp Med. 2009;4(3):179-186. PubMed
6. Roberts KB. Pediatric hospitalists in community hospitals: hospital-based generalists with expanded roles. Hosp Pediatr. 2015;5(5):290-292. PubMed
7. Stucky ER, Maniscalco J, Ottolini MC, et al. The Pediatric Hospital Medicine Core Competencies Supplement: a Framework for Curriculum Development by the Society of Hospital Medicine with acknowledgement to pediatric hospitalists from the American Academy of Pediatrics and the Academic Pediatric Association. J Hosp Med. 2010;5(suppl 2):i-xv, 1-114. PubMed
8. Jerardi KE, Fisher E, Rassbach C, et al. Development of a Curricular Framework for Pediatric Hospital Medicine Fellowships. Pediatrics. 2017;140(1):1-8. PubMed
9. Shah NH, Rhim HJH, Maniscalco J, Wilson K, Rassbach C. The current state of pediatric hospital medicine fellowships: A survey of program directors. J Hosp Med. 2016;11(5):324-328. PubMed
10. Mickells GE, Goodman DM, Rozenfeld RA. Education of pediatric subspecialty fellows in transport medicine: a national survey. BMC Pediatrics. 2017;17(1):13. PubMed
11. Cross B, Wilson D. High-fidelity simulation for transport team training and competency evaluation. Newborn Inf Nurs Rev. 2009;9(4):200-206. 
12. Weingart C, Herstich T, Baker P, et al. Making good better: implementing a standardized handoff in pediatric transport. Air Med J. 2013;32(1):40-46. PubMed
13. Kandil SB, Sanford HA, Northrup V, Bigham MT, Giuliano Jr. JS. Transport disposition using transport risk assessment in pediatrics (TRAP) score. Prehosp Emerg Care. 2012;16(3):366-373. PubMed
14. Giardino AP, Tran XG, King J, Giardino ER, Woodward GA, Durbin DR. A longitudinal view of resident education in pediatric emergency interhospital transport. Pediatr Emerg Care. 2010;26(9):653-658. PubMed
15. Oshimurua JM, Bauer BD, Shah N, Nguyen N, Maniscalco J. Current roles and perceived needs of pediatric hospital medicine fellowship graduates. Hosp Pediatr. 2016;6(10):633-637 PubMed

References

1. Insoft RM, Schwartz HP, Romito J. Guidelines for Air and Ground Transport of Neonatal and Pediatric Patients., 4th ed. Elk Grove Village, IL: American Academy of Pediatrics; 2016.
2. Rosenthal JL, Romano PS, Kokroko J, Gu W, Okumura MJ. Profiling interfacility transfers for hospitalized pediatric patients. Hosp Pediatr. 2017;7(6):335-343. PubMed
3. Kline-Krammes S, Wheeler DS, Schwartz HP, Forbes M, Bigham MT. Missed opportunities during pediatric residency training. Report of a 10-year follow-up survey in critical care transport medicine. Pediatr Emerg Care. 2012;28(1):1-5. PubMed
4. Tanem J, Triscari D, Chan M, Meyer MT. Workforce survey of pediatric interfacility transport systems in the United States. Pediatr Emer Care. 2016;32(6):364-370. PubMed
5. Freed GL, Dunham KM. Pediatric hospitalists: training, current practice, and career goals. J Hosp Med. 2009;4(3):179-186. PubMed
6. Roberts KB. Pediatric hospitalists in community hospitals: hospital-based generalists with expanded roles. Hosp Pediatr. 2015;5(5):290-292. PubMed
7. Stucky ER, Maniscalco J, Ottolini MC, et al. The Pediatric Hospital Medicine Core Competencies Supplement: a Framework for Curriculum Development by the Society of Hospital Medicine with acknowledgement to pediatric hospitalists from the American Academy of Pediatrics and the Academic Pediatric Association. J Hosp Med. 2010;5(suppl 2):i-xv, 1-114. PubMed
8. Jerardi KE, Fisher E, Rassbach C, et al. Development of a Curricular Framework for Pediatric Hospital Medicine Fellowships. Pediatrics. 2017;140(1):1-8. PubMed
9. Shah NH, Rhim HJH, Maniscalco J, Wilson K, Rassbach C. The current state of pediatric hospital medicine fellowships: A survey of program directors. J Hosp Med. 2016;11(5):324-328. PubMed
10. Mickells GE, Goodman DM, Rozenfeld RA. Education of pediatric subspecialty fellows in transport medicine: a national survey. BMC Pediatrics. 2017;17(1):13. PubMed
11. Cross B, Wilson D. High-fidelity simulation for transport team training and competency evaluation. Newborn Inf Nurs Rev. 2009;9(4):200-206. 
12. Weingart C, Herstich T, Baker P, et al. Making good better: implementing a standardized handoff in pediatric transport. Air Med J. 2013;32(1):40-46. PubMed
13. Kandil SB, Sanford HA, Northrup V, Bigham MT, Giuliano Jr. JS. Transport disposition using transport risk assessment in pediatrics (TRAP) score. Prehosp Emerg Care. 2012;16(3):366-373. PubMed
14. Giardino AP, Tran XG, King J, Giardino ER, Woodward GA, Durbin DR. A longitudinal view of resident education in pediatric emergency interhospital transport. Pediatr Emerg Care. 2010;26(9):653-658. PubMed
15. Oshimurua JM, Bauer BD, Shah N, Nguyen N, Maniscalco J. Current roles and perceived needs of pediatric hospital medicine fellowship graduates. Hosp Pediatr. 2016;6(10):633-637 PubMed

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Mark H. Corden, MD, Division of Hospital Medicine, Department of Pediatrics, Children’s Hospital Los Angeles, 4650 Sunset Blvd, MS 94, Los Angeles, CA 90027; Telephone: (323) 361-6177; Fax: (323) 361-8106; E-mail: [email protected]
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“We’ve Learned It’s a Medical Illness, Not a Moral Choice”: Qualitative Study of the Effects of a Multicomponent Addiction Intervention on Hospital Providers’ Attitudes and Experiences

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Substance use disorders (SUD) represent a national epidemic with death rates exceeding those of HIV at its peak.1 Hospitals are increasingly filled with people suffering from medical complications of addiction.2,3 While the US health system spends billions of dollars annually on hospital care for medical problems resulting from SUD,4 most hospitals lack expertise or care systems to directly address SUD or connect people to treatment after discharge. 5,6

Patients with SUD often feel stigmatized in healthcare settings and want providers who understand SUD and how to treat it.7 Providers feel underprepared8 and commonly have negative attitudes toward patients with SUD.9,10 Caring for patients can be a source of resentment, dissatisfaction, and burnout.9 Such negative attitudes can adversely affect patient care. Studies show that patients who perceive discrimination by providers are less likely to complete treatment11 and providers’ negative attitudes may disempower patients.9

Evaluations of hospital interventions for adults with SUD focus primarily on patient-level outcomes of SUD severity,12 healthcare utilization,13 and treatment engagement.14,15 Little is known about how such interventions can affect interprofessional providers’ attitudes and experiences, or how systems-level interventions influence hospital culture.16

We performed a qualitative study of multidisciplinary hospital providers to 1) understand the challenges that hospital providers face in managing care for patients with SUD, and 2) explore how integrating SUD treatment in a hospital setting affects providers’ attitudes, experiences, and perceptions of the care environment. This study was part of a formative evaluation of the Improving Addiction Care Team (IMPACT). IMPACT includes a hospital-based, interprofessional addiction medicine consultation service and rapid-access pathways to community addiction care after hospitalization.17. IMPACT is an intensive intervention that includes SUD assessments, withdrawal management, medications for addiction (eg, methadone, buprenorphine induction), counseling and behavioral SUD treatment, peer engagement and support, and linkages to community-based addiction care. We described the rationale and design of IMPACT in earlier publications.7,17

METHODS

Setting

We conducted in-person interviews and focus groups (FGs) with interprofessional hospital providers at a single urban academic medical center between February and July 2016, six months after starting IMPACT implementation. Oregon Health and Science University’s (OHSU) institutional review board approved the protocol.

Participants

We conducted 12 individual informant interviews (IIs) and 6 (FGs) (each comprising 3-6 participants) with a wide range of providers, including physicians, nurses, social workers, residents, patient advocates, case managers, and pharmacists. In total, 34 providers participated. We used purposive sampling to choose participants with experience both caring for patients with SUD and with exposure to IMPACT. Participant characteristics are summarized in Table 1.

Data Collection

We employed 2 different types of interviews. In situations where multiple providers occupied a similar role (eg, social workers), we chose to use a focus group format to elicit a range of perspectives and experiences through participant interaction.18 We conducted individual interviews to gain input from key informants who had unique roles in the program (eg, a cardiac surgeon) and to include providers who would otherwise be unable to participate due to scheduling barriers (eg, residents). We interviewed all participants using a semi-structured interview guide that was developed by an interdisciplinary team, including expert qualitative researchers, IMPACT clinical team members, and other OHSU clinicians (Appendix A). An interviewer who was not a part of the IMPACT clinical team asked all participants about their experience caring for patients with SUD, their experience with IMPACT, and how they might improve care. FGs lasted between 41-57 minutes, and individual key informant interviews lasted between 11-38 minutes. We ended recruitment after reaching theme saturation. Our goal was to achieve saturation across the sample as a whole and not within distinct participant groups. We noted if certain themes were more salient for 1 particular group. We audio-recorded all interviews and FGs. Recordings were transcribed, de-identified, and transferred to ATLAS.ti for data analysis.

Analysis

We conducted a thematic analysis using an inductive approach at the semantic level.19 Using an iterative process, we generated a preliminary coding schema after reviewing an initial selection of transcripts. Coders then independently coded transcripts and met in dyads to both discuss and reconcile codes, and resolve any discrepancies through discussion until reaching a consensus. One coder (DC) coded all transcripts; 3 coders (EP, SPP, MR) divided the transcripts evenly. All authors met periodically to discuss codebook revisions and emergent themes. We identified themes that represented patterns, had meaning to study participants, and captured important findings related to our research questions.19

 

 

As expected, the style of IIs differed from that of FGs and informants were able to provide information specific to their roles. Overall, the information provided by IIs was complementary to that of FGs and helped triangulate findings. Thus, we combined them in the results.18

RESULTS

We organized our findings into 3 main groupings, including (1) care before IMPACT, (2) care with IMPACT, and (3) perceived limitations of IMPACT. We included a table (Table 2) with additional quotations, beyond those in the body of the results, to support emergent themes described below.

Care before IMPACT

Providers felt hospitalization did not address addiction for many reasons, including ethical and legal concerns, medical knowledge gaps, and lack of treatment options.

Before IMPACT, many participants noted that hospitalization ignored or avoided addressing addiction, leading to a chaotic care environment that adversely affected patient care and provider experience. As one social worker stated, “prior to IMPACT we provided assessments, and we provided resources. But we didn’t address addiction.”

Providers cited multiple explanations for this, including the common misperception that using methadone to treat withdrawal violated federal regulations, and concerns about the ethicality of using opioids in patients with SUD. Across disciplines, providers described a “huge knowledge gap” and little confidence in addressing withdrawal, complex chronic pain, medications for addiction, and challenging patient behaviors. Providers also described limited expertise and scarce treatment options as a deterrent. As one attending reflected, “I would ask those questions [about SUD] before, but then … I had the information, but I couldn’t do anything with it.”

Providers felt the failure to address SUD adversely affected patient care, leading to untreated withdrawal, disruptive behaviors, and patients leaving against medical advice (AMA).

Participants across disciplines described wide variability in the medical management of SUD, particularly around the management of opioid withdrawal and pain, with some providers who “simply wouldn’t prescribe methadone or any opiates” and others who prescribed high doses without anticipating risks. As one attending recalled:

“You would see this pattern, especially in the intravenous drug-using population: left AMA, left AMA, left AMA … nine times out of ten, nobody was dealing with the fact that they were gonna go into withdrawal.”

Respondents recalled that disruptive behaviors from patients’ active use or withdrawal frequently threatened safety; imposed a tremendous burden on staff time and morale; and were a consistent source of providers’ distress. As one patient advocate explained:

“[Providers] get called to the unit because the person is yelling and throwing things or comes back after being gone for a long period and appears impaired … it often blows up, and they get discharged or they leave against medical advice or they go out and don’t come back. We don’t really know what happened to them, and they’re vulnerable. And the staff are vulnerable. And other patients are distressed by the disruption and commotion.”

Absent standards and systems to address SUD, providers felt they were “left to their own,” resulting in a reactive and chaotic care environment.

Providers noted inconsistent rules and policies regarding smoke breaks, room searches, and visitors. As a result, care felt “reckless and risky” and led to a “nonalliance” across disciplines. Providers frequently described inconsistent and loose expectations until an event -- often active use – triggered an ad hoc ratcheting up of the rules, damaging patient-provider relationships and limiting providers’ ability to provide medical care. Facing these conflicts, “staff gets escalated, and everybody gets kind of spun up.” As one attending reflected:

“I could not get any sort of engagement even in just her medical issues … I was trying to talk to her and educate her about heart failure and salt intake and food intake, but every time I walked in the room … I’d have to come in and be like, ‘your UDS [urine drug screen] was positive again, so here’s the changes to your behavioral plan, and OK, let’s talk about your heart failure …’ At that point, the relationship had completely disintegrated until it was very nonproductive.”

Providers described widespread “moral distress,” burnout, and feelings of futility before IMPACT.

Consequently, providers felt that caring for people with SUD was “very emotionally draining and very time consuming.” As one patient advocate described:

“We’ve been watching staff try to manage these patients for years without the experts and the resources and the skills that they need … As a result, there was a crescendo effect of moral distress, and [staff] bring in all of their past experiences which influence the interaction … Some staff are very skilled, but you also saw some really punitive responses.”

 

 

Many felt that providing intensive medical care without addressing people’s underlying SUD was a waste of time and resources. As one cardiac surgeon reflected:

“[Patients] ended up either dead or reinfected. Nobody wanted to do stuff because we felt it was futile. Well, of course, it’s futile …. you’re basically trying to fix the symptoms. It’s like having a leaky roof and just running around with a bunch of buckets, which is like surgery. You gotta fix the roof…otherwise they will continue to inject bacteria into their bodies.”

Care with IMPACT:

Providers felt integrating hospital-based systems to address SUD legitimized addiction as a treatable disease.

Participants described IMPACT as a “sea change” that “completely reframes” addiction as “a medical condition that actually has a treatment.” As one social worker observed, “when it’s somebody in a white coat with expertise who’s talking to another doctor it really can shift mindsets in an amazing way.” Others echoed this, stating that an addiction team “legitimized the fact that this is an actual disease that we need to treat - and a failure to treat it is a failure to be a good doctor.”

Providers felt that by addressing addiction directly, “IMPACT elevated the consciousness of providers and nurses … that substance use disorders are brain disorders and not bad behavior.” They described that this legitimization, combined with seeing firsthand the stabilizing effects of medications for addiction, allowed providers to understand SUD as a chronic disease, and not a moral failing.

Providers felt IMPACT improved patient engagement and humanized care by treating withdrawal, directly communicating about SUD, and modeling compassionate care.

Providers noted that treating withdrawal had a dramatic effect on patient engagement and care. One surgeon explained, “by managing their opioid dependence and other substance abuse issues … it’s easier for the staff to take care of them, it’s safer, and the patients feel better taken care of because the staff will engage with them.” Many noted that conflict-ridden “conversations were able to go to the side, and we were able to talk about other things to build rapport.” Others noted that this shift felt like “more productive time.”

In addition, providers repeatedly emphasized that having clear hospital standards and a process to engage patients “really helps … establish rapport with patients: ‘This is how we work this. These are your boundaries. And this is what will happen if you push those boundaries.’ There it is.” Providers attributed improved patient-provider communication to “frank conversation,” “the right amount of empathy,” and a less judgmental environment. As one attending described, “I don’t know if it gives them a voice or allows us to hear them better … but something’s happening with communication.”

Many participants highlighted that IMPACT modeled compassionate bedside interactions, exposed the role of trauma in many patients’ lives, and helped providers see SUD as a disease spectrum. One attending noted that to “actually appreciate the subtleties – just the severity of the disorder – has been powerful.” One resident said:

“There’s definitely a lot of stigma around patients with use disorders that probably shows itself in subtle ways throughout their hospitalization. I think IMPACT does a good job … keeping the patient in the center and keeping their use disorder contextualized in the greater person … [IMPACT] role models bedside interactions and how to treat people like humans.”

Providers valued post-hospital SUD treatment pathways.

Providers valued previously nonexistent post-hospital SUD treatment pathways, stating “this relationship with [community treatment] … it’s like an answer to prayers,” and “this isn’t just like we’re being nicer.” One attending described:

“Starting them on [methadone or buprenorphine-naloxone] and then making the next step in the outpatient world happen has been huge. That transition is so critical … that’s been probably the biggest impact.”

Providers felt relief after IMPACT implementation.

Providers felt that by addressing SUD treatment gaps and providing addiction expertise, IMPACT helped alleviate the previously widespread feelings of “moral distress.” One resident explained “having [IMPACT] as a lifeline, it just feels so good.” As an infectious disease consultant noted, “it makes people more open to treating people if they don’t feel isolated and out of their depth.” Others noted that IMPACT supported better multidisciplinary collaboration, which “reduced a lot of tension between the teams.” One nurse summarized:

“I think you feel more empowered when you’ve got the right medication, … the knowledge, and you feel like you have the resources. You actually feel like you’re making a difference.”

Respondents acknowledged that even with IMPACT, some patients leave AMA or relapse. However, by understanding addiction as a relapsing and remitting disease, providers reconceptualized “success,” further reducing feelings of emotional burnout and stress: “there will be ups and downs, it’s not gonna be a straight linear success.” One case manager reflected,

 

 

“Maybe that’s part of the nature of the illness, you progress, and then you kind of hold your breath and then it slips again … at least with IMPACT at the table I can say we’ve done the best we can for this person.”

Perceived limitations of IMPACT:

Providers noted several key limitations of IMPACT, including that hospital-based interventions do not address poverty and have limited ability to address socioeconomic determinants such as “social support, … housing, or nutrition.” Providers also felt that IMPACT had limited ability to alleviate patients’ feelings of boredom and isolation associated with prolonged hospitalization, and that IMPACT had limited effectiveness for highly ambivalent patients (Table 2).

Finally, while many described increased confidence managing SUD after working with IMPACT, others cautioned against deferring too much to specialists. As one resident doctor said:

“We shouldn’t forget that all providers should know how to handle some form of people with addiction … I just don’t want it to be like, ‘oh, well, no, I don’t need to think about this … because we have an addiction specialist.’”

Participants across disciplines repeatedly suggested formal, ongoing initiatives to educate and train providers to manage SUD independently.

DISCUSSION

This study explores provider perspectives on care for hospitalized adults with SUD. Before IMPACT, providers felt care was chaotic, unsafe, and frustrating. Providers perceived variable care quality, resulting in untreated withdrawal, inconsistent care plans, and poor patient outcomes, leading to widespread “moral distress” and feelings of futility among providers. Yet this experience was not inevitable. Providers described that a hospital-based intervention to treat SUD reframed addiction as a treatable chronic disease, transformed culture, and improved patient care and provider experience.

Our findings are consistent with and build on previous research in several ways. First, widespread anxiety and difficulty managing patients with SUD was not unique to our hospital. In a systematic review, van Boekel and colleagues describe that healthcare providers perceived violence, manipulation, and poor motivation as factors impeding care for patients with SUD.9 Our study demonstrates the resulting feelings of powerlessness and frustration may be alleviated through an intervention that provides SUD care.

Second, our study is consistent with a recent survey-based study by Wakeman and colleagues that found that a hospital-based SUD intervention improved providers’ feelings of preparedness and satisfaction.20 Our study provides a rich qualitative description and elucidates mechanisms by which such interventions may work.

The finding that a hospital-based SUD intervention can shift providers’ views of addiction is important. Earlier studies have shown that providers who perceive addiction as a choice are more likely to have negative attitudes toward people with SUD.11 While our intervention did not provide formal education aimed at changing attitudes, participants reported that seeing firsthand effects of treatment on patient behaviors was a powerful tool that radically shifted providers’ understanding and reduced stigma.

Stigma can occur at both individual and organizational levels. Structural stigma refers to practices, policies, and norms of institutions that exclude needs of a particular group.21 The absence of systems to address SUD sends a message to both patients and providers that addiction is a not a treatable or worthy disease. IMPACT was in and of itself a systems-level intervention; by creating a consultation service, hospital-wide policies, and pathways to care after hospitalization, IMPACT ‘legitimized’ SUD and reduced institutional stigma.

Several studies have shown the feasibility and effectiveness of starting medications for addiction (MAT) in the hospital.13-15 Our study builds on this work by highlighting systems-level elements valued by providers. These elements may be important to support and scale widespread adoption of MAT in hospitals. Specifically, providers felt that IMPACT’s attention to hospital policies, use of addiction medicine specialists, and direct linkages to outpatient SUD treatment proved instrumental in shifting care systems.

Our study has several limitations. As a single-site study, our goal was not generalizability, but transferability. As such, we aimed to obtain rich, in-depth information that can inform implementation of similar efforts. Because our study was conducted after the implementation of IMPACT, providers’ perspectives on care before IMPACT may have been influenced by the intervention. However, this also strengthens our findings by allowing participants the opportunity for insights under a different system. It likely leads to distinct findings compared to what we might have uncovered in a pre-post study. While respondents noted perceived limitations of IMPACT, there were few instances of negative remarks in the data we collected. It is possible that providers with more negative interpretations chose not to participate in interviews; however, we elicited wide viewpoints and encouraged participants to share both strengths and weaknesses. Finally, IMPACT implementation depends on regional as well as local factors such as Medicaid expansion, community treatment resources, and the existence of addiction medicine expertise that will differ across settings.

Despite these limitations, our study has several important implications. For clinical practice, our findings highlight the importance of treating withdrawal to address challenging patient behaviors and the value of integrating MAT into the hospital setting. Our findings also underscore the role of expert consultation for addiction. Importantly, our results emphasize that reframing SUD as a brain disease can have significant implications for clinical care and providers’ well-being. Provider distress is not inevitable and can change with the right support and systems.

At the hospital and health systems level, our findings suggest that hospitals can and should address SUD. This may include forming interprofessional teams with SUD expertise, providing standardized guidelines for addiction care such as patient safety plans and methadone policies, and creating rapid-access pathways to outpatient SUD care. By addressing SUD, hospitals may simultaneously improve care and reduce provider burnout. Providers’ important concerns about shifting SUD treatment to a specialty team and their discomfort managing SUD pre-IMPACT suggest the need to integrate SUD education across all levels of interprofessional education. Furthermore, provider concerns that IMPACT has limited ability to engage ambivalent patients underscores the need for hospital-based approaches that emphasize harm reduction strategies.

As the SUD epidemic worsens, SUD-related hospitalizations are skyrocketing, and people are dying at unprecedented rates.2,3 Many efforts to address SUD have been in primary care or community settings. While important, many people with SUD are unable or unlikely to seek primary care. 22 Hospitals need a workforce and systems that can address both the physical and behavioral health needs of this population. By implementing SUD improvements, hospitals can support staff and reduce burnout, better engage patients, improve care, and reduce stigma from this devastating disease.

 

 

Disclosures

The authors have no conflicts of interest to disclose.

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References

1. Rossen L, Bastian B, Warner M, Khan D, Chong Y. Drug poisoning mortality: United States, 1999-2015. 2017; https://www.cdc.gov/nchs/data-visualization/drug-poisoning-mortality/. Accessed 7-11, 2017.
2. Tedesco D, Asch SM, Curtin C, et al. Opioid abuse and poisoning: trends in inpatient and emergency department discharges. Health Aff (Millwood). 2017;36(10):1748-1753. http:// doi.org/10.1377/hlthaff.2017.0260. PubMed
3. Weiss AJ, Elixhauser A, Barrett ML, Steiner CA, Bailey MK, O’Malley L. Statistical Brief #219: Opioid-Related Inpatient Stays and Emergency Department Visits by State, 2009-2014. 2017; https://hcup-us.ahrq.gov/reports/statbriefs/sb219-Opioid-Hospital-Stays-ED-Visits-by-State.jsp?utm_source=AHRQ&utm_medium=EN-2&utm_term=&utm_content=2&utm_campaign=AHRQ_EN12_20_2016. Accessed July 11, 2017. PubMed
4. Ronan MV, Herzig SJ. Hospitalizations related to opioid abuse/dependence and associated serious infections increased sharply, 2002-12. Health Aff (Millwood). 2016;35(5):832-837. http:// doi.org/10.1377/hlthaff.2015.1424. PubMed
5. Infectious Diseases Society of America Emerging Infections Network. Report for Query: ‘Injection Drug Use (IDU) and Infectious Disease Practice’. 2017; https://www.int-med.uiowa.edu/Research/EIN/FinalReport_IDUandID.pdf. Accessed July 11, 2017. 
6. Rosenthal ES, Karchmer AW, Theisen-Toupal J, Castillo RA, Rowley CF. Suboptimal addiction interventions for patients hospitalized with injection drug use-associated infective endocarditis. Am J Med. 2016;129(5):481-485. http:// doi.org/10.1016/j.amjmed.2015.09.024. PubMed
7. Velez CM, Nicolaidis C, Korthuis PT, Englander H. “It’s been an Experience, a Life Learning Experience”: A qualitative study of hospitalized patients with substance use disorders. J Gen Intern Med. 2017;32(3):296-303. http:// doi.org/10.1007/s11606-016-3919-4. PubMed
8. Wakeman SE, Pham-Kanter G, Donelan K. Attitudes, practices, and preparedness to care for patients with substance use disorder: Results from a survey of general internists. Subst Abus. 2016;37(4):635-641. http:// doi.org/10.1080/08897077.2016.1187240. PubMed
9. van Boekel LC, Brouwers EP, van Weeghel J, Garretsen HF. Stigma among health professionals towards patients with substance use disorders and its consequences for healthcare delivery: systematic review. Drug Alcohol Depend. 2013;131(1-2):23-35. http:// doi.org/10.1016/j.drugalcdep.2013.02.018 PubMed
10. Merrill JO, Rhodes LA, Deyo RA, Marlatt GA, Bradley KA. Mutual mistrust in the medical care of drug users: the keys to the “narc” cabinet. J Gen Intern Med. 2002;17(5):327-333. http:// doi.org/10.1046/j.1525-1497.2002.10625.x. PubMed
11. Brener L, Von Hippel W, Kippax S, Preacher KJ. The role of physician and nurse attitudes in the health care of injecting drug users. Subst Use Misuse. 2010;45(7-8):1007-1018. http:// doi.org/10.3109/10826081003659543. PubMed
12. Wakeman SE, Metlay JP, Chang Y, Herman GE, Rigotti NA. Inpatient addiction consultation for hospitalized patients increases post-discharge abstinence and reduces addiction severity. J Gen Intern Med. 2017;32(8):909-916. http:// doi.org/10.1007/s11606-017-4077-z. PubMed
13. Wei J, Defries T, Lozada M, Young N, Huen W, Tulsky J. An inpatient treatment and discharge planning protocol for alcohol dependence: efficacy in reducing 30-day readmissions and emergency department visits. J Gen Intern Med. 2015;30(3):365-370. http:// doi.org/10.1007/s11606-014-2968-9. PubMed
14. Liebschutz JM, Crooks D, Herman D, et al. Buprenorphine treatment for hospitalized, opioid-dependent patients: a randomized clinical trial. JAMA Intern Med. 2014;174(8):1369-1376. http:// doi.org/10.1001/jamainternmed.2014.2556. PubMed
15. Shanahan CW, Beers D, Alford DP, Brigandi E, Samet JH. A transitional opioid program to engage hospitalized drug users. J Gen Intern Med. 2010;25(8):803-808. http:// doi.org/10.1007/s11606-010-1311-3. PubMed
16. Parmelli E, Flodgren G, Beyer F, Baillie N, Schaafsma ME, Eccles MP. The effectiveness of strategies to change organisational culture to improve healthcare performance: a systematic review. Implement Sci. 2011;6(1):33. http:// doi.org/10.1186/1748-5908-6-33. PubMed
17. Englander H, Weimer M, Solotaroff R, et al. Planning and designing the improving addiction care team (IMPACT) for hospitalized adults with substance use disorder. J Hosp Med. 2017;12(5):339-342. http:// doi.org/10.12788/jhm.2736. PubMed
18. Lambert SD, Loiselle CG. Combining individual interviews and focus groups to enhance data richness. J Adv Nurs. 2008;62(2):228-237. http:// doi.org/10.1111/j.1365-2648.2007.04559.x. PubMed
19. Braun VC, Victoria. Using thematic analysis in psychology. Qual Res Psychol. 2006;3:25. http://dx.doi.org/10.1191/1478088706qp063oa. 
20. Wakeman SE, Kanter GP, Donelan K. Institutional substance use disorder intervention improves general internist preparedness, attitudes, and clinical practice. J Addict Med. 2017;11(4):308-314. http:// doi.org/10.1097/ADM.0000000000000314. PubMed
21. Paterson B, Hirsch G, Andres K. Structural factors that promote stigmatization of drug users with hepatitis C in hospital emergency departments. Int J Drug Policy. 2013;24(5):471-478. http:// doi.org/10.1016/j.drugpo.2013.01.008 PubMed
22. Ross LE, Vigod S, Wishart J, et al. Barriers and facilitators to primary care for people with mental health and/or substance use issues: a qualitative study. BMC Fam Pract. 2015;16:135. http:// doi.org/10.1186/s12875-015-0353-3. PubMed

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Journal of Hospital Medicine 13(11)
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752-758. Published online first April 25, 2018
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Substance use disorders (SUD) represent a national epidemic with death rates exceeding those of HIV at its peak.1 Hospitals are increasingly filled with people suffering from medical complications of addiction.2,3 While the US health system spends billions of dollars annually on hospital care for medical problems resulting from SUD,4 most hospitals lack expertise or care systems to directly address SUD or connect people to treatment after discharge. 5,6

Patients with SUD often feel stigmatized in healthcare settings and want providers who understand SUD and how to treat it.7 Providers feel underprepared8 and commonly have negative attitudes toward patients with SUD.9,10 Caring for patients can be a source of resentment, dissatisfaction, and burnout.9 Such negative attitudes can adversely affect patient care. Studies show that patients who perceive discrimination by providers are less likely to complete treatment11 and providers’ negative attitudes may disempower patients.9

Evaluations of hospital interventions for adults with SUD focus primarily on patient-level outcomes of SUD severity,12 healthcare utilization,13 and treatment engagement.14,15 Little is known about how such interventions can affect interprofessional providers’ attitudes and experiences, or how systems-level interventions influence hospital culture.16

We performed a qualitative study of multidisciplinary hospital providers to 1) understand the challenges that hospital providers face in managing care for patients with SUD, and 2) explore how integrating SUD treatment in a hospital setting affects providers’ attitudes, experiences, and perceptions of the care environment. This study was part of a formative evaluation of the Improving Addiction Care Team (IMPACT). IMPACT includes a hospital-based, interprofessional addiction medicine consultation service and rapid-access pathways to community addiction care after hospitalization.17. IMPACT is an intensive intervention that includes SUD assessments, withdrawal management, medications for addiction (eg, methadone, buprenorphine induction), counseling and behavioral SUD treatment, peer engagement and support, and linkages to community-based addiction care. We described the rationale and design of IMPACT in earlier publications.7,17

METHODS

Setting

We conducted in-person interviews and focus groups (FGs) with interprofessional hospital providers at a single urban academic medical center between February and July 2016, six months after starting IMPACT implementation. Oregon Health and Science University’s (OHSU) institutional review board approved the protocol.

Participants

We conducted 12 individual informant interviews (IIs) and 6 (FGs) (each comprising 3-6 participants) with a wide range of providers, including physicians, nurses, social workers, residents, patient advocates, case managers, and pharmacists. In total, 34 providers participated. We used purposive sampling to choose participants with experience both caring for patients with SUD and with exposure to IMPACT. Participant characteristics are summarized in Table 1.

Data Collection

We employed 2 different types of interviews. In situations where multiple providers occupied a similar role (eg, social workers), we chose to use a focus group format to elicit a range of perspectives and experiences through participant interaction.18 We conducted individual interviews to gain input from key informants who had unique roles in the program (eg, a cardiac surgeon) and to include providers who would otherwise be unable to participate due to scheduling barriers (eg, residents). We interviewed all participants using a semi-structured interview guide that was developed by an interdisciplinary team, including expert qualitative researchers, IMPACT clinical team members, and other OHSU clinicians (Appendix A). An interviewer who was not a part of the IMPACT clinical team asked all participants about their experience caring for patients with SUD, their experience with IMPACT, and how they might improve care. FGs lasted between 41-57 minutes, and individual key informant interviews lasted between 11-38 minutes. We ended recruitment after reaching theme saturation. Our goal was to achieve saturation across the sample as a whole and not within distinct participant groups. We noted if certain themes were more salient for 1 particular group. We audio-recorded all interviews and FGs. Recordings were transcribed, de-identified, and transferred to ATLAS.ti for data analysis.

Analysis

We conducted a thematic analysis using an inductive approach at the semantic level.19 Using an iterative process, we generated a preliminary coding schema after reviewing an initial selection of transcripts. Coders then independently coded transcripts and met in dyads to both discuss and reconcile codes, and resolve any discrepancies through discussion until reaching a consensus. One coder (DC) coded all transcripts; 3 coders (EP, SPP, MR) divided the transcripts evenly. All authors met periodically to discuss codebook revisions and emergent themes. We identified themes that represented patterns, had meaning to study participants, and captured important findings related to our research questions.19

 

 

As expected, the style of IIs differed from that of FGs and informants were able to provide information specific to their roles. Overall, the information provided by IIs was complementary to that of FGs and helped triangulate findings. Thus, we combined them in the results.18

RESULTS

We organized our findings into 3 main groupings, including (1) care before IMPACT, (2) care with IMPACT, and (3) perceived limitations of IMPACT. We included a table (Table 2) with additional quotations, beyond those in the body of the results, to support emergent themes described below.

Care before IMPACT

Providers felt hospitalization did not address addiction for many reasons, including ethical and legal concerns, medical knowledge gaps, and lack of treatment options.

Before IMPACT, many participants noted that hospitalization ignored or avoided addressing addiction, leading to a chaotic care environment that adversely affected patient care and provider experience. As one social worker stated, “prior to IMPACT we provided assessments, and we provided resources. But we didn’t address addiction.”

Providers cited multiple explanations for this, including the common misperception that using methadone to treat withdrawal violated federal regulations, and concerns about the ethicality of using opioids in patients with SUD. Across disciplines, providers described a “huge knowledge gap” and little confidence in addressing withdrawal, complex chronic pain, medications for addiction, and challenging patient behaviors. Providers also described limited expertise and scarce treatment options as a deterrent. As one attending reflected, “I would ask those questions [about SUD] before, but then … I had the information, but I couldn’t do anything with it.”

Providers felt the failure to address SUD adversely affected patient care, leading to untreated withdrawal, disruptive behaviors, and patients leaving against medical advice (AMA).

Participants across disciplines described wide variability in the medical management of SUD, particularly around the management of opioid withdrawal and pain, with some providers who “simply wouldn’t prescribe methadone or any opiates” and others who prescribed high doses without anticipating risks. As one attending recalled:

“You would see this pattern, especially in the intravenous drug-using population: left AMA, left AMA, left AMA … nine times out of ten, nobody was dealing with the fact that they were gonna go into withdrawal.”

Respondents recalled that disruptive behaviors from patients’ active use or withdrawal frequently threatened safety; imposed a tremendous burden on staff time and morale; and were a consistent source of providers’ distress. As one patient advocate explained:

“[Providers] get called to the unit because the person is yelling and throwing things or comes back after being gone for a long period and appears impaired … it often blows up, and they get discharged or they leave against medical advice or they go out and don’t come back. We don’t really know what happened to them, and they’re vulnerable. And the staff are vulnerable. And other patients are distressed by the disruption and commotion.”

Absent standards and systems to address SUD, providers felt they were “left to their own,” resulting in a reactive and chaotic care environment.

Providers noted inconsistent rules and policies regarding smoke breaks, room searches, and visitors. As a result, care felt “reckless and risky” and led to a “nonalliance” across disciplines. Providers frequently described inconsistent and loose expectations until an event -- often active use – triggered an ad hoc ratcheting up of the rules, damaging patient-provider relationships and limiting providers’ ability to provide medical care. Facing these conflicts, “staff gets escalated, and everybody gets kind of spun up.” As one attending reflected:

“I could not get any sort of engagement even in just her medical issues … I was trying to talk to her and educate her about heart failure and salt intake and food intake, but every time I walked in the room … I’d have to come in and be like, ‘your UDS [urine drug screen] was positive again, so here’s the changes to your behavioral plan, and OK, let’s talk about your heart failure …’ At that point, the relationship had completely disintegrated until it was very nonproductive.”

Providers described widespread “moral distress,” burnout, and feelings of futility before IMPACT.

Consequently, providers felt that caring for people with SUD was “very emotionally draining and very time consuming.” As one patient advocate described:

“We’ve been watching staff try to manage these patients for years without the experts and the resources and the skills that they need … As a result, there was a crescendo effect of moral distress, and [staff] bring in all of their past experiences which influence the interaction … Some staff are very skilled, but you also saw some really punitive responses.”

 

 

Many felt that providing intensive medical care without addressing people’s underlying SUD was a waste of time and resources. As one cardiac surgeon reflected:

“[Patients] ended up either dead or reinfected. Nobody wanted to do stuff because we felt it was futile. Well, of course, it’s futile …. you’re basically trying to fix the symptoms. It’s like having a leaky roof and just running around with a bunch of buckets, which is like surgery. You gotta fix the roof…otherwise they will continue to inject bacteria into their bodies.”

Care with IMPACT:

Providers felt integrating hospital-based systems to address SUD legitimized addiction as a treatable disease.

Participants described IMPACT as a “sea change” that “completely reframes” addiction as “a medical condition that actually has a treatment.” As one social worker observed, “when it’s somebody in a white coat with expertise who’s talking to another doctor it really can shift mindsets in an amazing way.” Others echoed this, stating that an addiction team “legitimized the fact that this is an actual disease that we need to treat - and a failure to treat it is a failure to be a good doctor.”

Providers felt that by addressing addiction directly, “IMPACT elevated the consciousness of providers and nurses … that substance use disorders are brain disorders and not bad behavior.” They described that this legitimization, combined with seeing firsthand the stabilizing effects of medications for addiction, allowed providers to understand SUD as a chronic disease, and not a moral failing.

Providers felt IMPACT improved patient engagement and humanized care by treating withdrawal, directly communicating about SUD, and modeling compassionate care.

Providers noted that treating withdrawal had a dramatic effect on patient engagement and care. One surgeon explained, “by managing their opioid dependence and other substance abuse issues … it’s easier for the staff to take care of them, it’s safer, and the patients feel better taken care of because the staff will engage with them.” Many noted that conflict-ridden “conversations were able to go to the side, and we were able to talk about other things to build rapport.” Others noted that this shift felt like “more productive time.”

In addition, providers repeatedly emphasized that having clear hospital standards and a process to engage patients “really helps … establish rapport with patients: ‘This is how we work this. These are your boundaries. And this is what will happen if you push those boundaries.’ There it is.” Providers attributed improved patient-provider communication to “frank conversation,” “the right amount of empathy,” and a less judgmental environment. As one attending described, “I don’t know if it gives them a voice or allows us to hear them better … but something’s happening with communication.”

Many participants highlighted that IMPACT modeled compassionate bedside interactions, exposed the role of trauma in many patients’ lives, and helped providers see SUD as a disease spectrum. One attending noted that to “actually appreciate the subtleties – just the severity of the disorder – has been powerful.” One resident said:

“There’s definitely a lot of stigma around patients with use disorders that probably shows itself in subtle ways throughout their hospitalization. I think IMPACT does a good job … keeping the patient in the center and keeping their use disorder contextualized in the greater person … [IMPACT] role models bedside interactions and how to treat people like humans.”

Providers valued post-hospital SUD treatment pathways.

Providers valued previously nonexistent post-hospital SUD treatment pathways, stating “this relationship with [community treatment] … it’s like an answer to prayers,” and “this isn’t just like we’re being nicer.” One attending described:

“Starting them on [methadone or buprenorphine-naloxone] and then making the next step in the outpatient world happen has been huge. That transition is so critical … that’s been probably the biggest impact.”

Providers felt relief after IMPACT implementation.

Providers felt that by addressing SUD treatment gaps and providing addiction expertise, IMPACT helped alleviate the previously widespread feelings of “moral distress.” One resident explained “having [IMPACT] as a lifeline, it just feels so good.” As an infectious disease consultant noted, “it makes people more open to treating people if they don’t feel isolated and out of their depth.” Others noted that IMPACT supported better multidisciplinary collaboration, which “reduced a lot of tension between the teams.” One nurse summarized:

“I think you feel more empowered when you’ve got the right medication, … the knowledge, and you feel like you have the resources. You actually feel like you’re making a difference.”

Respondents acknowledged that even with IMPACT, some patients leave AMA or relapse. However, by understanding addiction as a relapsing and remitting disease, providers reconceptualized “success,” further reducing feelings of emotional burnout and stress: “there will be ups and downs, it’s not gonna be a straight linear success.” One case manager reflected,

 

 

“Maybe that’s part of the nature of the illness, you progress, and then you kind of hold your breath and then it slips again … at least with IMPACT at the table I can say we’ve done the best we can for this person.”

Perceived limitations of IMPACT:

Providers noted several key limitations of IMPACT, including that hospital-based interventions do not address poverty and have limited ability to address socioeconomic determinants such as “social support, … housing, or nutrition.” Providers also felt that IMPACT had limited ability to alleviate patients’ feelings of boredom and isolation associated with prolonged hospitalization, and that IMPACT had limited effectiveness for highly ambivalent patients (Table 2).

Finally, while many described increased confidence managing SUD after working with IMPACT, others cautioned against deferring too much to specialists. As one resident doctor said:

“We shouldn’t forget that all providers should know how to handle some form of people with addiction … I just don’t want it to be like, ‘oh, well, no, I don’t need to think about this … because we have an addiction specialist.’”

Participants across disciplines repeatedly suggested formal, ongoing initiatives to educate and train providers to manage SUD independently.

DISCUSSION

This study explores provider perspectives on care for hospitalized adults with SUD. Before IMPACT, providers felt care was chaotic, unsafe, and frustrating. Providers perceived variable care quality, resulting in untreated withdrawal, inconsistent care plans, and poor patient outcomes, leading to widespread “moral distress” and feelings of futility among providers. Yet this experience was not inevitable. Providers described that a hospital-based intervention to treat SUD reframed addiction as a treatable chronic disease, transformed culture, and improved patient care and provider experience.

Our findings are consistent with and build on previous research in several ways. First, widespread anxiety and difficulty managing patients with SUD was not unique to our hospital. In a systematic review, van Boekel and colleagues describe that healthcare providers perceived violence, manipulation, and poor motivation as factors impeding care for patients with SUD.9 Our study demonstrates the resulting feelings of powerlessness and frustration may be alleviated through an intervention that provides SUD care.

Second, our study is consistent with a recent survey-based study by Wakeman and colleagues that found that a hospital-based SUD intervention improved providers’ feelings of preparedness and satisfaction.20 Our study provides a rich qualitative description and elucidates mechanisms by which such interventions may work.

The finding that a hospital-based SUD intervention can shift providers’ views of addiction is important. Earlier studies have shown that providers who perceive addiction as a choice are more likely to have negative attitudes toward people with SUD.11 While our intervention did not provide formal education aimed at changing attitudes, participants reported that seeing firsthand effects of treatment on patient behaviors was a powerful tool that radically shifted providers’ understanding and reduced stigma.

Stigma can occur at both individual and organizational levels. Structural stigma refers to practices, policies, and norms of institutions that exclude needs of a particular group.21 The absence of systems to address SUD sends a message to both patients and providers that addiction is a not a treatable or worthy disease. IMPACT was in and of itself a systems-level intervention; by creating a consultation service, hospital-wide policies, and pathways to care after hospitalization, IMPACT ‘legitimized’ SUD and reduced institutional stigma.

Several studies have shown the feasibility and effectiveness of starting medications for addiction (MAT) in the hospital.13-15 Our study builds on this work by highlighting systems-level elements valued by providers. These elements may be important to support and scale widespread adoption of MAT in hospitals. Specifically, providers felt that IMPACT’s attention to hospital policies, use of addiction medicine specialists, and direct linkages to outpatient SUD treatment proved instrumental in shifting care systems.

Our study has several limitations. As a single-site study, our goal was not generalizability, but transferability. As such, we aimed to obtain rich, in-depth information that can inform implementation of similar efforts. Because our study was conducted after the implementation of IMPACT, providers’ perspectives on care before IMPACT may have been influenced by the intervention. However, this also strengthens our findings by allowing participants the opportunity for insights under a different system. It likely leads to distinct findings compared to what we might have uncovered in a pre-post study. While respondents noted perceived limitations of IMPACT, there were few instances of negative remarks in the data we collected. It is possible that providers with more negative interpretations chose not to participate in interviews; however, we elicited wide viewpoints and encouraged participants to share both strengths and weaknesses. Finally, IMPACT implementation depends on regional as well as local factors such as Medicaid expansion, community treatment resources, and the existence of addiction medicine expertise that will differ across settings.

Despite these limitations, our study has several important implications. For clinical practice, our findings highlight the importance of treating withdrawal to address challenging patient behaviors and the value of integrating MAT into the hospital setting. Our findings also underscore the role of expert consultation for addiction. Importantly, our results emphasize that reframing SUD as a brain disease can have significant implications for clinical care and providers’ well-being. Provider distress is not inevitable and can change with the right support and systems.

At the hospital and health systems level, our findings suggest that hospitals can and should address SUD. This may include forming interprofessional teams with SUD expertise, providing standardized guidelines for addiction care such as patient safety plans and methadone policies, and creating rapid-access pathways to outpatient SUD care. By addressing SUD, hospitals may simultaneously improve care and reduce provider burnout. Providers’ important concerns about shifting SUD treatment to a specialty team and their discomfort managing SUD pre-IMPACT suggest the need to integrate SUD education across all levels of interprofessional education. Furthermore, provider concerns that IMPACT has limited ability to engage ambivalent patients underscores the need for hospital-based approaches that emphasize harm reduction strategies.

As the SUD epidemic worsens, SUD-related hospitalizations are skyrocketing, and people are dying at unprecedented rates.2,3 Many efforts to address SUD have been in primary care or community settings. While important, many people with SUD are unable or unlikely to seek primary care. 22 Hospitals need a workforce and systems that can address both the physical and behavioral health needs of this population. By implementing SUD improvements, hospitals can support staff and reduce burnout, better engage patients, improve care, and reduce stigma from this devastating disease.

 

 

Disclosures

The authors have no conflicts of interest to disclose.

Substance use disorders (SUD) represent a national epidemic with death rates exceeding those of HIV at its peak.1 Hospitals are increasingly filled with people suffering from medical complications of addiction.2,3 While the US health system spends billions of dollars annually on hospital care for medical problems resulting from SUD,4 most hospitals lack expertise or care systems to directly address SUD or connect people to treatment after discharge. 5,6

Patients with SUD often feel stigmatized in healthcare settings and want providers who understand SUD and how to treat it.7 Providers feel underprepared8 and commonly have negative attitudes toward patients with SUD.9,10 Caring for patients can be a source of resentment, dissatisfaction, and burnout.9 Such negative attitudes can adversely affect patient care. Studies show that patients who perceive discrimination by providers are less likely to complete treatment11 and providers’ negative attitudes may disempower patients.9

Evaluations of hospital interventions for adults with SUD focus primarily on patient-level outcomes of SUD severity,12 healthcare utilization,13 and treatment engagement.14,15 Little is known about how such interventions can affect interprofessional providers’ attitudes and experiences, or how systems-level interventions influence hospital culture.16

We performed a qualitative study of multidisciplinary hospital providers to 1) understand the challenges that hospital providers face in managing care for patients with SUD, and 2) explore how integrating SUD treatment in a hospital setting affects providers’ attitudes, experiences, and perceptions of the care environment. This study was part of a formative evaluation of the Improving Addiction Care Team (IMPACT). IMPACT includes a hospital-based, interprofessional addiction medicine consultation service and rapid-access pathways to community addiction care after hospitalization.17. IMPACT is an intensive intervention that includes SUD assessments, withdrawal management, medications for addiction (eg, methadone, buprenorphine induction), counseling and behavioral SUD treatment, peer engagement and support, and linkages to community-based addiction care. We described the rationale and design of IMPACT in earlier publications.7,17

METHODS

Setting

We conducted in-person interviews and focus groups (FGs) with interprofessional hospital providers at a single urban academic medical center between February and July 2016, six months after starting IMPACT implementation. Oregon Health and Science University’s (OHSU) institutional review board approved the protocol.

Participants

We conducted 12 individual informant interviews (IIs) and 6 (FGs) (each comprising 3-6 participants) with a wide range of providers, including physicians, nurses, social workers, residents, patient advocates, case managers, and pharmacists. In total, 34 providers participated. We used purposive sampling to choose participants with experience both caring for patients with SUD and with exposure to IMPACT. Participant characteristics are summarized in Table 1.

Data Collection

We employed 2 different types of interviews. In situations where multiple providers occupied a similar role (eg, social workers), we chose to use a focus group format to elicit a range of perspectives and experiences through participant interaction.18 We conducted individual interviews to gain input from key informants who had unique roles in the program (eg, a cardiac surgeon) and to include providers who would otherwise be unable to participate due to scheduling barriers (eg, residents). We interviewed all participants using a semi-structured interview guide that was developed by an interdisciplinary team, including expert qualitative researchers, IMPACT clinical team members, and other OHSU clinicians (Appendix A). An interviewer who was not a part of the IMPACT clinical team asked all participants about their experience caring for patients with SUD, their experience with IMPACT, and how they might improve care. FGs lasted between 41-57 minutes, and individual key informant interviews lasted between 11-38 minutes. We ended recruitment after reaching theme saturation. Our goal was to achieve saturation across the sample as a whole and not within distinct participant groups. We noted if certain themes were more salient for 1 particular group. We audio-recorded all interviews and FGs. Recordings were transcribed, de-identified, and transferred to ATLAS.ti for data analysis.

Analysis

We conducted a thematic analysis using an inductive approach at the semantic level.19 Using an iterative process, we generated a preliminary coding schema after reviewing an initial selection of transcripts. Coders then independently coded transcripts and met in dyads to both discuss and reconcile codes, and resolve any discrepancies through discussion until reaching a consensus. One coder (DC) coded all transcripts; 3 coders (EP, SPP, MR) divided the transcripts evenly. All authors met periodically to discuss codebook revisions and emergent themes. We identified themes that represented patterns, had meaning to study participants, and captured important findings related to our research questions.19

 

 

As expected, the style of IIs differed from that of FGs and informants were able to provide information specific to their roles. Overall, the information provided by IIs was complementary to that of FGs and helped triangulate findings. Thus, we combined them in the results.18

RESULTS

We organized our findings into 3 main groupings, including (1) care before IMPACT, (2) care with IMPACT, and (3) perceived limitations of IMPACT. We included a table (Table 2) with additional quotations, beyond those in the body of the results, to support emergent themes described below.

Care before IMPACT

Providers felt hospitalization did not address addiction for many reasons, including ethical and legal concerns, medical knowledge gaps, and lack of treatment options.

Before IMPACT, many participants noted that hospitalization ignored or avoided addressing addiction, leading to a chaotic care environment that adversely affected patient care and provider experience. As one social worker stated, “prior to IMPACT we provided assessments, and we provided resources. But we didn’t address addiction.”

Providers cited multiple explanations for this, including the common misperception that using methadone to treat withdrawal violated federal regulations, and concerns about the ethicality of using opioids in patients with SUD. Across disciplines, providers described a “huge knowledge gap” and little confidence in addressing withdrawal, complex chronic pain, medications for addiction, and challenging patient behaviors. Providers also described limited expertise and scarce treatment options as a deterrent. As one attending reflected, “I would ask those questions [about SUD] before, but then … I had the information, but I couldn’t do anything with it.”

Providers felt the failure to address SUD adversely affected patient care, leading to untreated withdrawal, disruptive behaviors, and patients leaving against medical advice (AMA).

Participants across disciplines described wide variability in the medical management of SUD, particularly around the management of opioid withdrawal and pain, with some providers who “simply wouldn’t prescribe methadone or any opiates” and others who prescribed high doses without anticipating risks. As one attending recalled:

“You would see this pattern, especially in the intravenous drug-using population: left AMA, left AMA, left AMA … nine times out of ten, nobody was dealing with the fact that they were gonna go into withdrawal.”

Respondents recalled that disruptive behaviors from patients’ active use or withdrawal frequently threatened safety; imposed a tremendous burden on staff time and morale; and were a consistent source of providers’ distress. As one patient advocate explained:

“[Providers] get called to the unit because the person is yelling and throwing things or comes back after being gone for a long period and appears impaired … it often blows up, and they get discharged or they leave against medical advice or they go out and don’t come back. We don’t really know what happened to them, and they’re vulnerable. And the staff are vulnerable. And other patients are distressed by the disruption and commotion.”

Absent standards and systems to address SUD, providers felt they were “left to their own,” resulting in a reactive and chaotic care environment.

Providers noted inconsistent rules and policies regarding smoke breaks, room searches, and visitors. As a result, care felt “reckless and risky” and led to a “nonalliance” across disciplines. Providers frequently described inconsistent and loose expectations until an event -- often active use – triggered an ad hoc ratcheting up of the rules, damaging patient-provider relationships and limiting providers’ ability to provide medical care. Facing these conflicts, “staff gets escalated, and everybody gets kind of spun up.” As one attending reflected:

“I could not get any sort of engagement even in just her medical issues … I was trying to talk to her and educate her about heart failure and salt intake and food intake, but every time I walked in the room … I’d have to come in and be like, ‘your UDS [urine drug screen] was positive again, so here’s the changes to your behavioral plan, and OK, let’s talk about your heart failure …’ At that point, the relationship had completely disintegrated until it was very nonproductive.”

Providers described widespread “moral distress,” burnout, and feelings of futility before IMPACT.

Consequently, providers felt that caring for people with SUD was “very emotionally draining and very time consuming.” As one patient advocate described:

“We’ve been watching staff try to manage these patients for years without the experts and the resources and the skills that they need … As a result, there was a crescendo effect of moral distress, and [staff] bring in all of their past experiences which influence the interaction … Some staff are very skilled, but you also saw some really punitive responses.”

 

 

Many felt that providing intensive medical care without addressing people’s underlying SUD was a waste of time and resources. As one cardiac surgeon reflected:

“[Patients] ended up either dead or reinfected. Nobody wanted to do stuff because we felt it was futile. Well, of course, it’s futile …. you’re basically trying to fix the symptoms. It’s like having a leaky roof and just running around with a bunch of buckets, which is like surgery. You gotta fix the roof…otherwise they will continue to inject bacteria into their bodies.”

Care with IMPACT:

Providers felt integrating hospital-based systems to address SUD legitimized addiction as a treatable disease.

Participants described IMPACT as a “sea change” that “completely reframes” addiction as “a medical condition that actually has a treatment.” As one social worker observed, “when it’s somebody in a white coat with expertise who’s talking to another doctor it really can shift mindsets in an amazing way.” Others echoed this, stating that an addiction team “legitimized the fact that this is an actual disease that we need to treat - and a failure to treat it is a failure to be a good doctor.”

Providers felt that by addressing addiction directly, “IMPACT elevated the consciousness of providers and nurses … that substance use disorders are brain disorders and not bad behavior.” They described that this legitimization, combined with seeing firsthand the stabilizing effects of medications for addiction, allowed providers to understand SUD as a chronic disease, and not a moral failing.

Providers felt IMPACT improved patient engagement and humanized care by treating withdrawal, directly communicating about SUD, and modeling compassionate care.

Providers noted that treating withdrawal had a dramatic effect on patient engagement and care. One surgeon explained, “by managing their opioid dependence and other substance abuse issues … it’s easier for the staff to take care of them, it’s safer, and the patients feel better taken care of because the staff will engage with them.” Many noted that conflict-ridden “conversations were able to go to the side, and we were able to talk about other things to build rapport.” Others noted that this shift felt like “more productive time.”

In addition, providers repeatedly emphasized that having clear hospital standards and a process to engage patients “really helps … establish rapport with patients: ‘This is how we work this. These are your boundaries. And this is what will happen if you push those boundaries.’ There it is.” Providers attributed improved patient-provider communication to “frank conversation,” “the right amount of empathy,” and a less judgmental environment. As one attending described, “I don’t know if it gives them a voice or allows us to hear them better … but something’s happening with communication.”

Many participants highlighted that IMPACT modeled compassionate bedside interactions, exposed the role of trauma in many patients’ lives, and helped providers see SUD as a disease spectrum. One attending noted that to “actually appreciate the subtleties – just the severity of the disorder – has been powerful.” One resident said:

“There’s definitely a lot of stigma around patients with use disorders that probably shows itself in subtle ways throughout their hospitalization. I think IMPACT does a good job … keeping the patient in the center and keeping their use disorder contextualized in the greater person … [IMPACT] role models bedside interactions and how to treat people like humans.”

Providers valued post-hospital SUD treatment pathways.

Providers valued previously nonexistent post-hospital SUD treatment pathways, stating “this relationship with [community treatment] … it’s like an answer to prayers,” and “this isn’t just like we’re being nicer.” One attending described:

“Starting them on [methadone or buprenorphine-naloxone] and then making the next step in the outpatient world happen has been huge. That transition is so critical … that’s been probably the biggest impact.”

Providers felt relief after IMPACT implementation.

Providers felt that by addressing SUD treatment gaps and providing addiction expertise, IMPACT helped alleviate the previously widespread feelings of “moral distress.” One resident explained “having [IMPACT] as a lifeline, it just feels so good.” As an infectious disease consultant noted, “it makes people more open to treating people if they don’t feel isolated and out of their depth.” Others noted that IMPACT supported better multidisciplinary collaboration, which “reduced a lot of tension between the teams.” One nurse summarized:

“I think you feel more empowered when you’ve got the right medication, … the knowledge, and you feel like you have the resources. You actually feel like you’re making a difference.”

Respondents acknowledged that even with IMPACT, some patients leave AMA or relapse. However, by understanding addiction as a relapsing and remitting disease, providers reconceptualized “success,” further reducing feelings of emotional burnout and stress: “there will be ups and downs, it’s not gonna be a straight linear success.” One case manager reflected,

 

 

“Maybe that’s part of the nature of the illness, you progress, and then you kind of hold your breath and then it slips again … at least with IMPACT at the table I can say we’ve done the best we can for this person.”

Perceived limitations of IMPACT:

Providers noted several key limitations of IMPACT, including that hospital-based interventions do not address poverty and have limited ability to address socioeconomic determinants such as “social support, … housing, or nutrition.” Providers also felt that IMPACT had limited ability to alleviate patients’ feelings of boredom and isolation associated with prolonged hospitalization, and that IMPACT had limited effectiveness for highly ambivalent patients (Table 2).

Finally, while many described increased confidence managing SUD after working with IMPACT, others cautioned against deferring too much to specialists. As one resident doctor said:

“We shouldn’t forget that all providers should know how to handle some form of people with addiction … I just don’t want it to be like, ‘oh, well, no, I don’t need to think about this … because we have an addiction specialist.’”

Participants across disciplines repeatedly suggested formal, ongoing initiatives to educate and train providers to manage SUD independently.

DISCUSSION

This study explores provider perspectives on care for hospitalized adults with SUD. Before IMPACT, providers felt care was chaotic, unsafe, and frustrating. Providers perceived variable care quality, resulting in untreated withdrawal, inconsistent care plans, and poor patient outcomes, leading to widespread “moral distress” and feelings of futility among providers. Yet this experience was not inevitable. Providers described that a hospital-based intervention to treat SUD reframed addiction as a treatable chronic disease, transformed culture, and improved patient care and provider experience.

Our findings are consistent with and build on previous research in several ways. First, widespread anxiety and difficulty managing patients with SUD was not unique to our hospital. In a systematic review, van Boekel and colleagues describe that healthcare providers perceived violence, manipulation, and poor motivation as factors impeding care for patients with SUD.9 Our study demonstrates the resulting feelings of powerlessness and frustration may be alleviated through an intervention that provides SUD care.

Second, our study is consistent with a recent survey-based study by Wakeman and colleagues that found that a hospital-based SUD intervention improved providers’ feelings of preparedness and satisfaction.20 Our study provides a rich qualitative description and elucidates mechanisms by which such interventions may work.

The finding that a hospital-based SUD intervention can shift providers’ views of addiction is important. Earlier studies have shown that providers who perceive addiction as a choice are more likely to have negative attitudes toward people with SUD.11 While our intervention did not provide formal education aimed at changing attitudes, participants reported that seeing firsthand effects of treatment on patient behaviors was a powerful tool that radically shifted providers’ understanding and reduced stigma.

Stigma can occur at both individual and organizational levels. Structural stigma refers to practices, policies, and norms of institutions that exclude needs of a particular group.21 The absence of systems to address SUD sends a message to both patients and providers that addiction is a not a treatable or worthy disease. IMPACT was in and of itself a systems-level intervention; by creating a consultation service, hospital-wide policies, and pathways to care after hospitalization, IMPACT ‘legitimized’ SUD and reduced institutional stigma.

Several studies have shown the feasibility and effectiveness of starting medications for addiction (MAT) in the hospital.13-15 Our study builds on this work by highlighting systems-level elements valued by providers. These elements may be important to support and scale widespread adoption of MAT in hospitals. Specifically, providers felt that IMPACT’s attention to hospital policies, use of addiction medicine specialists, and direct linkages to outpatient SUD treatment proved instrumental in shifting care systems.

Our study has several limitations. As a single-site study, our goal was not generalizability, but transferability. As such, we aimed to obtain rich, in-depth information that can inform implementation of similar efforts. Because our study was conducted after the implementation of IMPACT, providers’ perspectives on care before IMPACT may have been influenced by the intervention. However, this also strengthens our findings by allowing participants the opportunity for insights under a different system. It likely leads to distinct findings compared to what we might have uncovered in a pre-post study. While respondents noted perceived limitations of IMPACT, there were few instances of negative remarks in the data we collected. It is possible that providers with more negative interpretations chose not to participate in interviews; however, we elicited wide viewpoints and encouraged participants to share both strengths and weaknesses. Finally, IMPACT implementation depends on regional as well as local factors such as Medicaid expansion, community treatment resources, and the existence of addiction medicine expertise that will differ across settings.

Despite these limitations, our study has several important implications. For clinical practice, our findings highlight the importance of treating withdrawal to address challenging patient behaviors and the value of integrating MAT into the hospital setting. Our findings also underscore the role of expert consultation for addiction. Importantly, our results emphasize that reframing SUD as a brain disease can have significant implications for clinical care and providers’ well-being. Provider distress is not inevitable and can change with the right support and systems.

At the hospital and health systems level, our findings suggest that hospitals can and should address SUD. This may include forming interprofessional teams with SUD expertise, providing standardized guidelines for addiction care such as patient safety plans and methadone policies, and creating rapid-access pathways to outpatient SUD care. By addressing SUD, hospitals may simultaneously improve care and reduce provider burnout. Providers’ important concerns about shifting SUD treatment to a specialty team and their discomfort managing SUD pre-IMPACT suggest the need to integrate SUD education across all levels of interprofessional education. Furthermore, provider concerns that IMPACT has limited ability to engage ambivalent patients underscores the need for hospital-based approaches that emphasize harm reduction strategies.

As the SUD epidemic worsens, SUD-related hospitalizations are skyrocketing, and people are dying at unprecedented rates.2,3 Many efforts to address SUD have been in primary care or community settings. While important, many people with SUD are unable or unlikely to seek primary care. 22 Hospitals need a workforce and systems that can address both the physical and behavioral health needs of this population. By implementing SUD improvements, hospitals can support staff and reduce burnout, better engage patients, improve care, and reduce stigma from this devastating disease.

 

 

Disclosures

The authors have no conflicts of interest to disclose.

References

1. Rossen L, Bastian B, Warner M, Khan D, Chong Y. Drug poisoning mortality: United States, 1999-2015. 2017; https://www.cdc.gov/nchs/data-visualization/drug-poisoning-mortality/. Accessed 7-11, 2017.
2. Tedesco D, Asch SM, Curtin C, et al. Opioid abuse and poisoning: trends in inpatient and emergency department discharges. Health Aff (Millwood). 2017;36(10):1748-1753. http:// doi.org/10.1377/hlthaff.2017.0260. PubMed
3. Weiss AJ, Elixhauser A, Barrett ML, Steiner CA, Bailey MK, O’Malley L. Statistical Brief #219: Opioid-Related Inpatient Stays and Emergency Department Visits by State, 2009-2014. 2017; https://hcup-us.ahrq.gov/reports/statbriefs/sb219-Opioid-Hospital-Stays-ED-Visits-by-State.jsp?utm_source=AHRQ&utm_medium=EN-2&utm_term=&utm_content=2&utm_campaign=AHRQ_EN12_20_2016. Accessed July 11, 2017. PubMed
4. Ronan MV, Herzig SJ. Hospitalizations related to opioid abuse/dependence and associated serious infections increased sharply, 2002-12. Health Aff (Millwood). 2016;35(5):832-837. http:// doi.org/10.1377/hlthaff.2015.1424. PubMed
5. Infectious Diseases Society of America Emerging Infections Network. Report for Query: ‘Injection Drug Use (IDU) and Infectious Disease Practice’. 2017; https://www.int-med.uiowa.edu/Research/EIN/FinalReport_IDUandID.pdf. Accessed July 11, 2017. 
6. Rosenthal ES, Karchmer AW, Theisen-Toupal J, Castillo RA, Rowley CF. Suboptimal addiction interventions for patients hospitalized with injection drug use-associated infective endocarditis. Am J Med. 2016;129(5):481-485. http:// doi.org/10.1016/j.amjmed.2015.09.024. PubMed
7. Velez CM, Nicolaidis C, Korthuis PT, Englander H. “It’s been an Experience, a Life Learning Experience”: A qualitative study of hospitalized patients with substance use disorders. J Gen Intern Med. 2017;32(3):296-303. http:// doi.org/10.1007/s11606-016-3919-4. PubMed
8. Wakeman SE, Pham-Kanter G, Donelan K. Attitudes, practices, and preparedness to care for patients with substance use disorder: Results from a survey of general internists. Subst Abus. 2016;37(4):635-641. http:// doi.org/10.1080/08897077.2016.1187240. PubMed
9. van Boekel LC, Brouwers EP, van Weeghel J, Garretsen HF. Stigma among health professionals towards patients with substance use disorders and its consequences for healthcare delivery: systematic review. Drug Alcohol Depend. 2013;131(1-2):23-35. http:// doi.org/10.1016/j.drugalcdep.2013.02.018 PubMed
10. Merrill JO, Rhodes LA, Deyo RA, Marlatt GA, Bradley KA. Mutual mistrust in the medical care of drug users: the keys to the “narc” cabinet. J Gen Intern Med. 2002;17(5):327-333. http:// doi.org/10.1046/j.1525-1497.2002.10625.x. PubMed
11. Brener L, Von Hippel W, Kippax S, Preacher KJ. The role of physician and nurse attitudes in the health care of injecting drug users. Subst Use Misuse. 2010;45(7-8):1007-1018. http:// doi.org/10.3109/10826081003659543. PubMed
12. Wakeman SE, Metlay JP, Chang Y, Herman GE, Rigotti NA. Inpatient addiction consultation for hospitalized patients increases post-discharge abstinence and reduces addiction severity. J Gen Intern Med. 2017;32(8):909-916. http:// doi.org/10.1007/s11606-017-4077-z. PubMed
13. Wei J, Defries T, Lozada M, Young N, Huen W, Tulsky J. An inpatient treatment and discharge planning protocol for alcohol dependence: efficacy in reducing 30-day readmissions and emergency department visits. J Gen Intern Med. 2015;30(3):365-370. http:// doi.org/10.1007/s11606-014-2968-9. PubMed
14. Liebschutz JM, Crooks D, Herman D, et al. Buprenorphine treatment for hospitalized, opioid-dependent patients: a randomized clinical trial. JAMA Intern Med. 2014;174(8):1369-1376. http:// doi.org/10.1001/jamainternmed.2014.2556. PubMed
15. Shanahan CW, Beers D, Alford DP, Brigandi E, Samet JH. A transitional opioid program to engage hospitalized drug users. J Gen Intern Med. 2010;25(8):803-808. http:// doi.org/10.1007/s11606-010-1311-3. PubMed
16. Parmelli E, Flodgren G, Beyer F, Baillie N, Schaafsma ME, Eccles MP. The effectiveness of strategies to change organisational culture to improve healthcare performance: a systematic review. Implement Sci. 2011;6(1):33. http:// doi.org/10.1186/1748-5908-6-33. PubMed
17. Englander H, Weimer M, Solotaroff R, et al. Planning and designing the improving addiction care team (IMPACT) for hospitalized adults with substance use disorder. J Hosp Med. 2017;12(5):339-342. http:// doi.org/10.12788/jhm.2736. PubMed
18. Lambert SD, Loiselle CG. Combining individual interviews and focus groups to enhance data richness. J Adv Nurs. 2008;62(2):228-237. http:// doi.org/10.1111/j.1365-2648.2007.04559.x. PubMed
19. Braun VC, Victoria. Using thematic analysis in psychology. Qual Res Psychol. 2006;3:25. http://dx.doi.org/10.1191/1478088706qp063oa. 
20. Wakeman SE, Kanter GP, Donelan K. Institutional substance use disorder intervention improves general internist preparedness, attitudes, and clinical practice. J Addict Med. 2017;11(4):308-314. http:// doi.org/10.1097/ADM.0000000000000314. PubMed
21. Paterson B, Hirsch G, Andres K. Structural factors that promote stigmatization of drug users with hepatitis C in hospital emergency departments. Int J Drug Policy. 2013;24(5):471-478. http:// doi.org/10.1016/j.drugpo.2013.01.008 PubMed
22. Ross LE, Vigod S, Wishart J, et al. Barriers and facilitators to primary care for people with mental health and/or substance use issues: a qualitative study. BMC Fam Pract. 2015;16:135. http:// doi.org/10.1186/s12875-015-0353-3. PubMed

References

1. Rossen L, Bastian B, Warner M, Khan D, Chong Y. Drug poisoning mortality: United States, 1999-2015. 2017; https://www.cdc.gov/nchs/data-visualization/drug-poisoning-mortality/. Accessed 7-11, 2017.
2. Tedesco D, Asch SM, Curtin C, et al. Opioid abuse and poisoning: trends in inpatient and emergency department discharges. Health Aff (Millwood). 2017;36(10):1748-1753. http:// doi.org/10.1377/hlthaff.2017.0260. PubMed
3. Weiss AJ, Elixhauser A, Barrett ML, Steiner CA, Bailey MK, O’Malley L. Statistical Brief #219: Opioid-Related Inpatient Stays and Emergency Department Visits by State, 2009-2014. 2017; https://hcup-us.ahrq.gov/reports/statbriefs/sb219-Opioid-Hospital-Stays-ED-Visits-by-State.jsp?utm_source=AHRQ&utm_medium=EN-2&utm_term=&utm_content=2&utm_campaign=AHRQ_EN12_20_2016. Accessed July 11, 2017. PubMed
4. Ronan MV, Herzig SJ. Hospitalizations related to opioid abuse/dependence and associated serious infections increased sharply, 2002-12. Health Aff (Millwood). 2016;35(5):832-837. http:// doi.org/10.1377/hlthaff.2015.1424. PubMed
5. Infectious Diseases Society of America Emerging Infections Network. Report for Query: ‘Injection Drug Use (IDU) and Infectious Disease Practice’. 2017; https://www.int-med.uiowa.edu/Research/EIN/FinalReport_IDUandID.pdf. Accessed July 11, 2017. 
6. Rosenthal ES, Karchmer AW, Theisen-Toupal J, Castillo RA, Rowley CF. Suboptimal addiction interventions for patients hospitalized with injection drug use-associated infective endocarditis. Am J Med. 2016;129(5):481-485. http:// doi.org/10.1016/j.amjmed.2015.09.024. PubMed
7. Velez CM, Nicolaidis C, Korthuis PT, Englander H. “It’s been an Experience, a Life Learning Experience”: A qualitative study of hospitalized patients with substance use disorders. J Gen Intern Med. 2017;32(3):296-303. http:// doi.org/10.1007/s11606-016-3919-4. PubMed
8. Wakeman SE, Pham-Kanter G, Donelan K. Attitudes, practices, and preparedness to care for patients with substance use disorder: Results from a survey of general internists. Subst Abus. 2016;37(4):635-641. http:// doi.org/10.1080/08897077.2016.1187240. PubMed
9. van Boekel LC, Brouwers EP, van Weeghel J, Garretsen HF. Stigma among health professionals towards patients with substance use disorders and its consequences for healthcare delivery: systematic review. Drug Alcohol Depend. 2013;131(1-2):23-35. http:// doi.org/10.1016/j.drugalcdep.2013.02.018 PubMed
10. Merrill JO, Rhodes LA, Deyo RA, Marlatt GA, Bradley KA. Mutual mistrust in the medical care of drug users: the keys to the “narc” cabinet. J Gen Intern Med. 2002;17(5):327-333. http:// doi.org/10.1046/j.1525-1497.2002.10625.x. PubMed
11. Brener L, Von Hippel W, Kippax S, Preacher KJ. The role of physician and nurse attitudes in the health care of injecting drug users. Subst Use Misuse. 2010;45(7-8):1007-1018. http:// doi.org/10.3109/10826081003659543. PubMed
12. Wakeman SE, Metlay JP, Chang Y, Herman GE, Rigotti NA. Inpatient addiction consultation for hospitalized patients increases post-discharge abstinence and reduces addiction severity. J Gen Intern Med. 2017;32(8):909-916. http:// doi.org/10.1007/s11606-017-4077-z. PubMed
13. Wei J, Defries T, Lozada M, Young N, Huen W, Tulsky J. An inpatient treatment and discharge planning protocol for alcohol dependence: efficacy in reducing 30-day readmissions and emergency department visits. J Gen Intern Med. 2015;30(3):365-370. http:// doi.org/10.1007/s11606-014-2968-9. PubMed
14. Liebschutz JM, Crooks D, Herman D, et al. Buprenorphine treatment for hospitalized, opioid-dependent patients: a randomized clinical trial. JAMA Intern Med. 2014;174(8):1369-1376. http:// doi.org/10.1001/jamainternmed.2014.2556. PubMed
15. Shanahan CW, Beers D, Alford DP, Brigandi E, Samet JH. A transitional opioid program to engage hospitalized drug users. J Gen Intern Med. 2010;25(8):803-808. http:// doi.org/10.1007/s11606-010-1311-3. PubMed
16. Parmelli E, Flodgren G, Beyer F, Baillie N, Schaafsma ME, Eccles MP. The effectiveness of strategies to change organisational culture to improve healthcare performance: a systematic review. Implement Sci. 2011;6(1):33. http:// doi.org/10.1186/1748-5908-6-33. PubMed
17. Englander H, Weimer M, Solotaroff R, et al. Planning and designing the improving addiction care team (IMPACT) for hospitalized adults with substance use disorder. J Hosp Med. 2017;12(5):339-342. http:// doi.org/10.12788/jhm.2736. PubMed
18. Lambert SD, Loiselle CG. Combining individual interviews and focus groups to enhance data richness. J Adv Nurs. 2008;62(2):228-237. http:// doi.org/10.1111/j.1365-2648.2007.04559.x. PubMed
19. Braun VC, Victoria. Using thematic analysis in psychology. Qual Res Psychol. 2006;3:25. http://dx.doi.org/10.1191/1478088706qp063oa. 
20. Wakeman SE, Kanter GP, Donelan K. Institutional substance use disorder intervention improves general internist preparedness, attitudes, and clinical practice. J Addict Med. 2017;11(4):308-314. http:// doi.org/10.1097/ADM.0000000000000314. PubMed
21. Paterson B, Hirsch G, Andres K. Structural factors that promote stigmatization of drug users with hepatitis C in hospital emergency departments. Int J Drug Policy. 2013;24(5):471-478. http:// doi.org/10.1016/j.drugpo.2013.01.008 PubMed
22. Ross LE, Vigod S, Wishart J, et al. Barriers and facilitators to primary care for people with mental health and/or substance use issues: a qualitative study. BMC Fam Pract. 2015;16:135. http:// doi.org/10.1186/s12875-015-0353-3. PubMed

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Journal of Hospital Medicine 13(11)
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Journal of Hospital Medicine 13(11)
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752-758. Published online first April 25, 2018
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Honora Englander, MD, Division of Hospital Medicine, BTE 119, Oregon Health & Science University, 3181 SW Sam Jackson Road, Portland, OR 97239; Telephone: 503-494-1164; Fax: 503-494-1159; E-mail: [email protected]
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Treatment with transcutaneous electrical nerve stimulation led to a significant cut in pain during movement in women with fibromyalgia. Also today, brisk walking may decrease total knee replacement, smoking is neglected in the treatment of some patients with peripheral arterial disease, and the ACP beefs up its firearms policy in the wake of the shooting in Pittsburgh.
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Treatment with transcutaneous electrical nerve stimulation led to a significant cut in pain during movement in women with fibromyalgia. Also today, brisk walking may decrease total knee replacement, smoking is neglected in the treatment of some patients with peripheral arterial disease, and the ACP beefs up its firearms policy in the wake of the shooting in Pittsburgh.
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Treatment with transcutaneous electrical nerve stimulation led to a significant cut in pain during movement in women with fibromyalgia. Also today, brisk walking may decrease total knee replacement, smoking is neglected in the treatment of some patients with peripheral arterial disease, and the ACP beefs up its firearms policy in the wake of the shooting in Pittsburgh.
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