Pulmonary Health Hub

SAN DIEGO – About one in four intubated or mechanically ventilated patients with gram-negative pneumonia die during hospitalization, results from a large retrospective cohort study found.

In a poster abstract presented at an international conference of the American Thoracic Society, researchers led by Thomas P. Lodise Jr., PharmD, noted that ventilator-associated pneumonia is one of the most common hospital-acquired infections in intensive care units and affected an estimated 9%-27% of all intubated patients. “While data are readily available surrounding mortality associated with VAP, scant data are available on outcomes associated with any type of pneumonia requiring intubation and mechanical ventilation (MV) caused by gram-negative organisms,” they wrote.

XiXinXing/ThinkStock

In an effort to describe mortality rates and associated risk factors for intubated and MV patients diagnosed with gram-negative pneumonia, Dr. Lodise of the Albany (N.Y.) College of Pharmacy and Health Sciences and his associates conducted a retrospective cohort study of data from the Healthcare Cost and Utilization Project (HCUP) National Readmission Database (NRD). HCUP is the largest source of hospital care data in the United States, accounting for 49.3% of the total U.S. resident population and 49.1% of U.S. hospitalizations. The researchers included patients at least 18 years of age who were hospitalized with a primary or secondary diagnosis of gram-negative pneumonia between Feb. 1, 2013, and Nov. 30, 2013. They excluded index hospitalizations with a primary or secondary diagnosis of viral pneumonia, fungal pneumonia, atypical organisms, gram-positive bacterial pneumonia, or pneumonia occurring secondary to an infectious disease. They examined mortality rates descriptively and modeled them via adjusted multivariate logistic regression to evaluate the impact of baseline characteristics and comorbidities on risk of mortality. All analyses incorporated sample weights to increase generalizability and allow for extrapolation to the entire U.S. population.

A total of 32,683 patients met all study criteria. Of these, 2,323 (7.1%) had a primary diagnosis and 30,360 (92.9%) had a secondary diagnosis for gram-negative pneumonia. Their mean age was 64 years, and 61.1% were male. In all, 7,928 patients (24.3%) died during hospitalization. Multivariate analysis revealed that patients with concomitant sepsis had the highest risk of mortality (odds ratio, 2.60), followed by patients aged 65 years and older (OR, 1.88) and those with any prior hospitalization within 30 days (OR, 1.34). Comorbidities upon admission with highest risk of mortality included cancer (OR, 2.45), liver disease (OR, 1.91), AIDS/HIV (OR, 1.59), renal disease (OR, 1.33), and congestive heart failure (OR, 1.15). Diabetes was found to have a decreased risk of mortality, with an OR of 0.80. “However, a majority of patients with diabetes had no complications; thus, these patients may be representative of a less severe patient population,” Dr. Lodise and his associates noted in the poster.

They acknowledged certain limitations of the study, including the potential for coding errors. They also pointed out the HCUP NRD does not contain treatment-specific information, drugs administered or treatment patterns during hospitalization, the number of days patients spent in the ICU, or the number of days on ventilation, “which can influence outcomes in pneumonia patients.” In addition, the study did not attempt to determine cause of death. “Death may have been due to combinations of factors separate from pneumonia,” they wrote.

Bayer Healthcare Pharmaceuticals funded the study. Dr. Lodise reported having no financial disclosures.

[email protected]

SOURCE: Lodise T. et al. ATS 2018, Poster 272.

SAN DIEGO – About one in four intubated or mechanically ventilated patients with gram-negative pneumonia die during hospitalization, results from a large retrospective cohort study found.

In a poster abstract presented at an international conference of the American Thoracic Society, researchers led by Thomas P. Lodise Jr., PharmD, noted that ventilator-associated pneumonia is one of the most common hospital-acquired infections in intensive care units and affected an estimated 9%-27% of all intubated patients. “While data are readily available surrounding mortality associated with VAP, scant data are available on outcomes associated with any type of pneumonia requiring intubation and mechanical ventilation (MV) caused by gram-negative organisms,” they wrote.

XiXinXing/ThinkStock

In an effort to describe mortality rates and associated risk factors for intubated and MV patients diagnosed with gram-negative pneumonia, Dr. Lodise of the Albany (N.Y.) College of Pharmacy and Health Sciences and his associates conducted a retrospective cohort study of data from the Healthcare Cost and Utilization Project (HCUP) National Readmission Database (NRD). HCUP is the largest source of hospital care data in the United States, accounting for 49.3% of the total U.S. resident population and 49.1% of U.S. hospitalizations. The researchers included patients at least 18 years of age who were hospitalized with a primary or secondary diagnosis of gram-negative pneumonia between Feb. 1, 2013, and Nov. 30, 2013. They excluded index hospitalizations with a primary or secondary diagnosis of viral pneumonia, fungal pneumonia, atypical organisms, gram-positive bacterial pneumonia, or pneumonia occurring secondary to an infectious disease. They examined mortality rates descriptively and modeled them via adjusted multivariate logistic regression to evaluate the impact of baseline characteristics and comorbidities on risk of mortality. All analyses incorporated sample weights to increase generalizability and allow for extrapolation to the entire U.S. population.

A total of 32,683 patients met all study criteria. Of these, 2,323 (7.1%) had a primary diagnosis and 30,360 (92.9%) had a secondary diagnosis for gram-negative pneumonia. Their mean age was 64 years, and 61.1% were male. In all, 7,928 patients (24.3%) died during hospitalization. Multivariate analysis revealed that patients with concomitant sepsis had the highest risk of mortality (odds ratio, 2.60), followed by patients aged 65 years and older (OR, 1.88) and those with any prior hospitalization within 30 days (OR, 1.34). Comorbidities upon admission with highest risk of mortality included cancer (OR, 2.45), liver disease (OR, 1.91), AIDS/HIV (OR, 1.59), renal disease (OR, 1.33), and congestive heart failure (OR, 1.15). Diabetes was found to have a decreased risk of mortality, with an OR of 0.80. “However, a majority of patients with diabetes had no complications; thus, these patients may be representative of a less severe patient population,” Dr. Lodise and his associates noted in the poster.

They acknowledged certain limitations of the study, including the potential for coding errors. They also pointed out the HCUP NRD does not contain treatment-specific information, drugs administered or treatment patterns during hospitalization, the number of days patients spent in the ICU, or the number of days on ventilation, “which can influence outcomes in pneumonia patients.” In addition, the study did not attempt to determine cause of death. “Death may have been due to combinations of factors separate from pneumonia,” they wrote.

Bayer Healthcare Pharmaceuticals funded the study. Dr. Lodise reported having no financial disclosures.

[email protected]

SOURCE: Lodise T. et al. ATS 2018, Poster 272.

SAN DIEGO – About one in four intubated or mechanically ventilated patients with gram-negative pneumonia die during hospitalization, results from a large retrospective cohort study found.

In a poster abstract presented at an international conference of the American Thoracic Society, researchers led by Thomas P. Lodise Jr., PharmD, noted that ventilator-associated pneumonia is one of the most common hospital-acquired infections in intensive care units and affected an estimated 9%-27% of all intubated patients. “While data are readily available surrounding mortality associated with VAP, scant data are available on outcomes associated with any type of pneumonia requiring intubation and mechanical ventilation (MV) caused by gram-negative organisms,” they wrote.

XiXinXing/ThinkStock

In an effort to describe mortality rates and associated risk factors for intubated and MV patients diagnosed with gram-negative pneumonia, Dr. Lodise of the Albany (N.Y.) College of Pharmacy and Health Sciences and his associates conducted a retrospective cohort study of data from the Healthcare Cost and Utilization Project (HCUP) National Readmission Database (NRD). HCUP is the largest source of hospital care data in the United States, accounting for 49.3% of the total U.S. resident population and 49.1% of U.S. hospitalizations. The researchers included patients at least 18 years of age who were hospitalized with a primary or secondary diagnosis of gram-negative pneumonia between Feb. 1, 2013, and Nov. 30, 2013. They excluded index hospitalizations with a primary or secondary diagnosis of viral pneumonia, fungal pneumonia, atypical organisms, gram-positive bacterial pneumonia, or pneumonia occurring secondary to an infectious disease. They examined mortality rates descriptively and modeled them via adjusted multivariate logistic regression to evaluate the impact of baseline characteristics and comorbidities on risk of mortality. All analyses incorporated sample weights to increase generalizability and allow for extrapolation to the entire U.S. population.

A total of 32,683 patients met all study criteria. Of these, 2,323 (7.1%) had a primary diagnosis and 30,360 (92.9%) had a secondary diagnosis for gram-negative pneumonia. Their mean age was 64 years, and 61.1% were male. In all, 7,928 patients (24.3%) died during hospitalization. Multivariate analysis revealed that patients with concomitant sepsis had the highest risk of mortality (odds ratio, 2.60), followed by patients aged 65 years and older (OR, 1.88) and those with any prior hospitalization within 30 days (OR, 1.34). Comorbidities upon admission with highest risk of mortality included cancer (OR, 2.45), liver disease (OR, 1.91), AIDS/HIV (OR, 1.59), renal disease (OR, 1.33), and congestive heart failure (OR, 1.15). Diabetes was found to have a decreased risk of mortality, with an OR of 0.80. “However, a majority of patients with diabetes had no complications; thus, these patients may be representative of a less severe patient population,” Dr. Lodise and his associates noted in the poster.

They acknowledged certain limitations of the study, including the potential for coding errors. They also pointed out the HCUP NRD does not contain treatment-specific information, drugs administered or treatment patterns during hospitalization, the number of days patients spent in the ICU, or the number of days on ventilation, “which can influence outcomes in pneumonia patients.” In addition, the study did not attempt to determine cause of death. “Death may have been due to combinations of factors separate from pneumonia,” they wrote.

Bayer Healthcare Pharmaceuticals funded the study. Dr. Lodise reported having no financial disclosures.

[email protected]

SOURCE: Lodise T. et al. ATS 2018, Poster 272.

SAN DIEGO – Among patients with idiopathic pulmonary fibrosis (IPF), an improvement in 4-meter gait speed with pulmonary rehabilitation is an independent predictor of all-cause mortality at 1 year, suggest results from a multicenter study presented at an international conference of the American Thoracic Society.

The authors of the study found that patients who improved their gait speed had a longer survival time. In all, 11% of patients died within 1 year of completing pulmonary rehabilitation.

Doug Brunk/MDedge News

“Mortality is an attractive endpoint in IPF clinical research but requires large sample sizes and long follow-up duration, making clinical trials expensive and challenging to undertake,” lead study author Claire M. Nolan, MSc, said at the conference.

“Consequently, there is much interest in surrogate endpoints of mortality. In the elderly population, a lot of work has been done on performance measures, in particular the 4-meter gait test. It’s a simple test to do from the assessor’s perspective, because you just need a 4-meter corridor and a stopwatch. From the patient’s perspective, they only have to walk at their usual speed, making it feasible in most settings.”

The study by Ms. Nolan, a National Institute for Health Research fellow, and her associates, involved recruiting 90 IPF patients referred to three outpatient pulmonary rehabilitation programs in London. All patients underwent the following assessments before and after 8 weeks of pulmonary rehabilitation: spirometry; Medical Research Council dyspnea score; anthropometry; 4-meter gait speed; incremental shuttle walk test, and King’s Brief Interstitial Lung Disease questionnaire. Ms. Nolan, a respiratory physiotherapist with the Harefield Pulmonary Rehabilitation and Muscle Research Group, Royal Brompton and Harefield NHS Foundation Trust, Harefield, London, and her associates drew from national databases to obtain data on all-cause mortality 1 year following pulmonary rehabilitation.

“We also identified a cutpoint, so if patients improved their walking speed by 0.009 meters per second or above, that was associated with a longer survival time at 1 year (area under the curve of 0.76, for sensitivity of 69.6% and a specificity of 70%; P less than 0.01),” she said.* “Among patients who achieved that cutpoint or exceeded it, only 5% of them died in the 1-year follow-up period, compared with 23% in the group that didn’t achieve that cutpoint. That’s quite a big difference, but this requires external validation in another population.”

To determine the 4-meter gait speed change cut-off that best discriminated between patients who died and survived, the investigators plotted receiver operating characteristic curves. For validation, they conducted a Kaplan-Meier analysis to assess time to death, with significance assessed via the log-rank test. Finally, they used a multivariate Cox proportional hazards model to characterize the relationship between 4-meter gait speed change and all-cause mortality, adjusting for independent predictors of mortality (age, previous respiratory hospitalizations in the past year, forced vital capacity percent predicted) and baseline 4-meter gait speed.

At baseline, 70% of the 90 patients were male, mean age was 74 years, mean forced vital capacity was 72.8% predicted, and mean Medical Research Council dyspnea score was 3. In addition, mean body mass index was 27.2 kg/m², mean 4-meter gait speed was 0.92 meters per second, mean incremental shuttle walk test measurement was 271 meters, and mean King’s Brief Interstitial Lung Disease total score was 56.4. Following 8 weeks of pulmonary rehabilitation, the patients’ 4-meter gait speed improved significantly by a mean of 0.15 meters per second (P less than .001). All other variables also improved significantly, with the exception of forced vital capacity.

In an interview, Ms. Nolan characterized the results as “one piece of the puzzle in answering whether 4-meter gait speed is a useful test for clinicians and researchers. It needs to be taken in the context of 4-meter gait speed in other populations as well as with what we’re finding in patients with IPF. We know that this test is reliable, valid, and responsive to treatment. Now we know that it has predictive capacity as well.”

During her presentation, she cited potential reasons why change in gait speed is associated with survival. “Firstly, gait speed has been described as a clinical indicator of multisystem well-being and the ‘sixth vital sign,’ ”she said. “Walking ability and speed rely on multiple factors and the integration of many systems, cardiovascular and otherwise. We know that pulmonary rehab has multiple benefits and improves these systems, and it’s plausible that change in gait speed may be a surrogate marker for, say, improvement in exercise capacity or health status. But the precise mechanism requires verification.”

Ms. Nolan acknowledged certain limitations of the study, including the fact that contemporaneous measurement of full lung function testing and pulmonary hypertension diagnosis were not available at the time of the study. “Therefore, we were unable to account for [diffusing capacity of the lung for carbon monoxide] and pulmonary hypertension diagnosis,” she said. “Secondly, we were unable to identify the precise cause of death from the national database of harm and care records, but this corroborates previous data which suggest that it’s difficult to reliably discern if a death is IPF- or non-IPF related. Lastly, we know that the benefits of pulmonary rehab experienced by IPF patients tend to wane after 6 months. It would be interesting to compare the short-term improvements in gait speed that we observed to more sustained improvements, to identify whether this impacts prognostability.”

National Institute for Health Research funded the study. Ms. Nolan reported having no financial disclosures.

*Correction, 5/23/18: An earlier version of this article misstated the 4-meter gait speed cutoff point. 

[email protected]

SOURCE: Nolan CM et al. ATS 2018, Abstract A2456.

SAN DIEGO – Among patients with idiopathic pulmonary fibrosis (IPF), an improvement in 4-meter gait speed with pulmonary rehabilitation is an independent predictor of all-cause mortality at 1 year, suggest results from a multicenter study presented at an international conference of the American Thoracic Society.

The authors of the study found that patients who improved their gait speed had a longer survival time. In all, 11% of patients died within 1 year of completing pulmonary rehabilitation.

Doug Brunk/MDedge News

“Mortality is an attractive endpoint in IPF clinical research but requires large sample sizes and long follow-up duration, making clinical trials expensive and challenging to undertake,” lead study author Claire M. Nolan, MSc, said at the conference.

“Consequently, there is much interest in surrogate endpoints of mortality. In the elderly population, a lot of work has been done on performance measures, in particular the 4-meter gait test. It’s a simple test to do from the assessor’s perspective, because you just need a 4-meter corridor and a stopwatch. From the patient’s perspective, they only have to walk at their usual speed, making it feasible in most settings.”

The study by Ms. Nolan, a National Institute for Health Research fellow, and her associates, involved recruiting 90 IPF patients referred to three outpatient pulmonary rehabilitation programs in London. All patients underwent the following assessments before and after 8 weeks of pulmonary rehabilitation: spirometry; Medical Research Council dyspnea score; anthropometry; 4-meter gait speed; incremental shuttle walk test, and King’s Brief Interstitial Lung Disease questionnaire. Ms. Nolan, a respiratory physiotherapist with the Harefield Pulmonary Rehabilitation and Muscle Research Group, Royal Brompton and Harefield NHS Foundation Trust, Harefield, London, and her associates drew from national databases to obtain data on all-cause mortality 1 year following pulmonary rehabilitation.

“We also identified a cutpoint, so if patients improved their walking speed by 0.009 meters per second or above, that was associated with a longer survival time at 1 year (area under the curve of 0.76, for sensitivity of 69.6% and a specificity of 70%; P less than 0.01),” she said.* “Among patients who achieved that cutpoint or exceeded it, only 5% of them died in the 1-year follow-up period, compared with 23% in the group that didn’t achieve that cutpoint. That’s quite a big difference, but this requires external validation in another population.”

To determine the 4-meter gait speed change cut-off that best discriminated between patients who died and survived, the investigators plotted receiver operating characteristic curves. For validation, they conducted a Kaplan-Meier analysis to assess time to death, with significance assessed via the log-rank test. Finally, they used a multivariate Cox proportional hazards model to characterize the relationship between 4-meter gait speed change and all-cause mortality, adjusting for independent predictors of mortality (age, previous respiratory hospitalizations in the past year, forced vital capacity percent predicted) and baseline 4-meter gait speed.

At baseline, 70% of the 90 patients were male, mean age was 74 years, mean forced vital capacity was 72.8% predicted, and mean Medical Research Council dyspnea score was 3. In addition, mean body mass index was 27.2 kg/m², mean 4-meter gait speed was 0.92 meters per second, mean incremental shuttle walk test measurement was 271 meters, and mean King’s Brief Interstitial Lung Disease total score was 56.4. Following 8 weeks of pulmonary rehabilitation, the patients’ 4-meter gait speed improved significantly by a mean of 0.15 meters per second (P less than .001). All other variables also improved significantly, with the exception of forced vital capacity.

In an interview, Ms. Nolan characterized the results as “one piece of the puzzle in answering whether 4-meter gait speed is a useful test for clinicians and researchers. It needs to be taken in the context of 4-meter gait speed in other populations as well as with what we’re finding in patients with IPF. We know that this test is reliable, valid, and responsive to treatment. Now we know that it has predictive capacity as well.”

During her presentation, she cited potential reasons why change in gait speed is associated with survival. “Firstly, gait speed has been described as a clinical indicator of multisystem well-being and the ‘sixth vital sign,’ ”she said. “Walking ability and speed rely on multiple factors and the integration of many systems, cardiovascular and otherwise. We know that pulmonary rehab has multiple benefits and improves these systems, and it’s plausible that change in gait speed may be a surrogate marker for, say, improvement in exercise capacity or health status. But the precise mechanism requires verification.”

Ms. Nolan acknowledged certain limitations of the study, including the fact that contemporaneous measurement of full lung function testing and pulmonary hypertension diagnosis were not available at the time of the study. “Therefore, we were unable to account for [diffusing capacity of the lung for carbon monoxide] and pulmonary hypertension diagnosis,” she said. “Secondly, we were unable to identify the precise cause of death from the national database of harm and care records, but this corroborates previous data which suggest that it’s difficult to reliably discern if a death is IPF- or non-IPF related. Lastly, we know that the benefits of pulmonary rehab experienced by IPF patients tend to wane after 6 months. It would be interesting to compare the short-term improvements in gait speed that we observed to more sustained improvements, to identify whether this impacts prognostability.”

National Institute for Health Research funded the study. Ms. Nolan reported having no financial disclosures.

*Correction, 5/23/18: An earlier version of this article misstated the 4-meter gait speed cutoff point. 

[email protected]

SOURCE: Nolan CM et al. ATS 2018, Abstract A2456.

SAN DIEGO – Among patients with idiopathic pulmonary fibrosis (IPF), an improvement in 4-meter gait speed with pulmonary rehabilitation is an independent predictor of all-cause mortality at 1 year, suggest results from a multicenter study presented at an international conference of the American Thoracic Society.

The authors of the study found that patients who improved their gait speed had a longer survival time. In all, 11% of patients died within 1 year of completing pulmonary rehabilitation.

Doug Brunk/MDedge News

“Mortality is an attractive endpoint in IPF clinical research but requires large sample sizes and long follow-up duration, making clinical trials expensive and challenging to undertake,” lead study author Claire M. Nolan, MSc, said at the conference.

“Consequently, there is much interest in surrogate endpoints of mortality. In the elderly population, a lot of work has been done on performance measures, in particular the 4-meter gait test. It’s a simple test to do from the assessor’s perspective, because you just need a 4-meter corridor and a stopwatch. From the patient’s perspective, they only have to walk at their usual speed, making it feasible in most settings.”

The study by Ms. Nolan, a National Institute for Health Research fellow, and her associates, involved recruiting 90 IPF patients referred to three outpatient pulmonary rehabilitation programs in London. All patients underwent the following assessments before and after 8 weeks of pulmonary rehabilitation: spirometry; Medical Research Council dyspnea score; anthropometry; 4-meter gait speed; incremental shuttle walk test, and King’s Brief Interstitial Lung Disease questionnaire. Ms. Nolan, a respiratory physiotherapist with the Harefield Pulmonary Rehabilitation and Muscle Research Group, Royal Brompton and Harefield NHS Foundation Trust, Harefield, London, and her associates drew from national databases to obtain data on all-cause mortality 1 year following pulmonary rehabilitation.

“We also identified a cutpoint, so if patients improved their walking speed by 0.009 meters per second or above, that was associated with a longer survival time at 1 year (area under the curve of 0.76, for sensitivity of 69.6% and a specificity of 70%; P less than 0.01),” she said.* “Among patients who achieved that cutpoint or exceeded it, only 5% of them died in the 1-year follow-up period, compared with 23% in the group that didn’t achieve that cutpoint. That’s quite a big difference, but this requires external validation in another population.”

To determine the 4-meter gait speed change cut-off that best discriminated between patients who died and survived, the investigators plotted receiver operating characteristic curves. For validation, they conducted a Kaplan-Meier analysis to assess time to death, with significance assessed via the log-rank test. Finally, they used a multivariate Cox proportional hazards model to characterize the relationship between 4-meter gait speed change and all-cause mortality, adjusting for independent predictors of mortality (age, previous respiratory hospitalizations in the past year, forced vital capacity percent predicted) and baseline 4-meter gait speed.

At baseline, 70% of the 90 patients were male, mean age was 74 years, mean forced vital capacity was 72.8% predicted, and mean Medical Research Council dyspnea score was 3. In addition, mean body mass index was 27.2 kg/m², mean 4-meter gait speed was 0.92 meters per second, mean incremental shuttle walk test measurement was 271 meters, and mean King’s Brief Interstitial Lung Disease total score was 56.4. Following 8 weeks of pulmonary rehabilitation, the patients’ 4-meter gait speed improved significantly by a mean of 0.15 meters per second (P less than .001). All other variables also improved significantly, with the exception of forced vital capacity.

In an interview, Ms. Nolan characterized the results as “one piece of the puzzle in answering whether 4-meter gait speed is a useful test for clinicians and researchers. It needs to be taken in the context of 4-meter gait speed in other populations as well as with what we’re finding in patients with IPF. We know that this test is reliable, valid, and responsive to treatment. Now we know that it has predictive capacity as well.”

During her presentation, she cited potential reasons why change in gait speed is associated with survival. “Firstly, gait speed has been described as a clinical indicator of multisystem well-being and the ‘sixth vital sign,’ ”she said. “Walking ability and speed rely on multiple factors and the integration of many systems, cardiovascular and otherwise. We know that pulmonary rehab has multiple benefits and improves these systems, and it’s plausible that change in gait speed may be a surrogate marker for, say, improvement in exercise capacity or health status. But the precise mechanism requires verification.”

Ms. Nolan acknowledged certain limitations of the study, including the fact that contemporaneous measurement of full lung function testing and pulmonary hypertension diagnosis were not available at the time of the study. “Therefore, we were unable to account for [diffusing capacity of the lung for carbon monoxide] and pulmonary hypertension diagnosis,” she said. “Secondly, we were unable to identify the precise cause of death from the national database of harm and care records, but this corroborates previous data which suggest that it’s difficult to reliably discern if a death is IPF- or non-IPF related. Lastly, we know that the benefits of pulmonary rehab experienced by IPF patients tend to wane after 6 months. It would be interesting to compare the short-term improvements in gait speed that we observed to more sustained improvements, to identify whether this impacts prognostability.”

National Institute for Health Research funded the study. Ms. Nolan reported having no financial disclosures.

*Correction, 5/23/18: An earlier version of this article misstated the 4-meter gait speed cutoff point. 

[email protected]

SOURCE: Nolan CM et al. ATS 2018, Abstract A2456.

The oxidative stress biomarker 8-isoprostane (8-IsoP) predicted obstructive sleep apnea (OSA) and disease severity in children better than the fractional concentration of exhaled nitric oxide (FE_NO), according to results published in Sleep Medicine.

In an analysis of 46 patients with sleep-disordered breathing and 20 controls, patients with OSA had higher levels of 8-IsoP in exhaled breath condensate (EBC) upon waking than patients with primary snoring (PS) and controls. 8-IsoP values were also correlated with apnea hypopnea index (AHI) (r, 0.40; P = .003) and oxygen saturation, also known as SaO₂, (r, –0.50; P = .001), reported Dr. Mario Berreto of the Pediatric Unit at Sant’Andrea Hospital in Rome and his coauthors.

copyright designer491/Thinkstock

The investigators studied 66 children aged 4.5-15.1 years, of whom 46 had sleep-disordered breathing (SDB) and were enrolled in the hospital’s Pediatric Sleep Center. The 20 healthy controls had no history of sleep problems, including snoring, apneas, and restless sleep. Exclusion criteria included acute respiratory infections in the 4 weeks preceding the study, chronic respiratory comorbidities, and therapy with corticosteroids or other anti-inflammatory drugs for at least 3 weeks.

Patients with SDB had a medical examination followed by overnight standard polysomnography (PSG), and EBC 8-IsoP and FE_NO measurements were collected the next morning upon waking. The SDB group also had spirometry and skin prick testing for common allergens. The children in the control group had the same tests and measurements done, except for PSG, Dr. Berreto and his colleagues wrote.

Central, obstructive, and mixed apnea events were counted according to American Academy of Sleep Medicine (AASM) criteria. AHI was defined as the average number of apnea and hypopnea events per hour of sleep. OSA was diagnosed with an AHI of one episode per hour and confirmed by the presence of SDB symptoms with AHI of one episode per hour.

Children with snoring and an AHI of less than one episode per hour were diagnosed with primary snoring (PS). Patients with an AHI greater than one episode per hour and less than five episodes per hour were diagnosed with mild OSA. Children with an AHI of greater than five episodes per hour were diagnosed with moderate to severe OSA, the authors said.

While 8-IsoP concentrations correlated with OSA severity for AHI and SaO₂, FE_NO did not, Dr. Berreto and colleagues reported.

The difference in 8-IsoP concentrations for children with SDB and controls (mean, 39.6; P = .006) was increased when adjusted using multiple linear regression (mean, 43.2; P = .007), and the difference was even more pronounced when adjusted for all potential confounding variables (mean, 53.1; P = .008). The difference in FE_NO levels between SDB patients and controls was not statistically significant (mean, 1.67; P = .358) and did not change significantly when adjusted for confounding variables.

High area under the curve values were observed for 8-IsoP as a predictor of OSA (.839; 95% confidence interval, .744-.933, P = .000). The sensitivity and specificity of cutoff values of 8-IsoP concentrations above the 50th percentile were 76.5% and 78.1%, respectively.

“[It] seems that biomarkers of oxidative stress reflect OSA severity in children more closely than biomarkers of atopic-eosinophilic airway inflammation,” the authors concluded.

No disclosures or conflicts of interest were reported.

SOURCE: Barreto M et al. Sleep Medicine. 2018. doi: 10.1016/j.sleep.2018.01.011.

The oxidative stress biomarker 8-isoprostane (8-IsoP) predicted obstructive sleep apnea (OSA) and disease severity in children better than the fractional concentration of exhaled nitric oxide (FE_NO), according to results published in Sleep Medicine.

In an analysis of 46 patients with sleep-disordered breathing and 20 controls, patients with OSA had higher levels of 8-IsoP in exhaled breath condensate (EBC) upon waking than patients with primary snoring (PS) and controls. 8-IsoP values were also correlated with apnea hypopnea index (AHI) (r, 0.40; P = .003) and oxygen saturation, also known as SaO₂, (r, –0.50; P = .001), reported Dr. Mario Berreto of the Pediatric Unit at Sant’Andrea Hospital in Rome and his coauthors.

copyright designer491/Thinkstock

The investigators studied 66 children aged 4.5-15.1 years, of whom 46 had sleep-disordered breathing (SDB) and were enrolled in the hospital’s Pediatric Sleep Center. The 20 healthy controls had no history of sleep problems, including snoring, apneas, and restless sleep. Exclusion criteria included acute respiratory infections in the 4 weeks preceding the study, chronic respiratory comorbidities, and therapy with corticosteroids or other anti-inflammatory drugs for at least 3 weeks.

Patients with SDB had a medical examination followed by overnight standard polysomnography (PSG), and EBC 8-IsoP and FE_NO measurements were collected the next morning upon waking. The SDB group also had spirometry and skin prick testing for common allergens. The children in the control group had the same tests and measurements done, except for PSG, Dr. Berreto and his colleagues wrote.

Central, obstructive, and mixed apnea events were counted according to American Academy of Sleep Medicine (AASM) criteria. AHI was defined as the average number of apnea and hypopnea events per hour of sleep. OSA was diagnosed with an AHI of one episode per hour and confirmed by the presence of SDB symptoms with AHI of one episode per hour.

Children with snoring and an AHI of less than one episode per hour were diagnosed with primary snoring (PS). Patients with an AHI greater than one episode per hour and less than five episodes per hour were diagnosed with mild OSA. Children with an AHI of greater than five episodes per hour were diagnosed with moderate to severe OSA, the authors said.

While 8-IsoP concentrations correlated with OSA severity for AHI and SaO₂, FE_NO did not, Dr. Berreto and colleagues reported.

The difference in 8-IsoP concentrations for children with SDB and controls (mean, 39.6; P = .006) was increased when adjusted using multiple linear regression (mean, 43.2; P = .007), and the difference was even more pronounced when adjusted for all potential confounding variables (mean, 53.1; P = .008). The difference in FE_NO levels between SDB patients and controls was not statistically significant (mean, 1.67; P = .358) and did not change significantly when adjusted for confounding variables.

High area under the curve values were observed for 8-IsoP as a predictor of OSA (.839; 95% confidence interval, .744-.933, P = .000). The sensitivity and specificity of cutoff values of 8-IsoP concentrations above the 50th percentile were 76.5% and 78.1%, respectively.

“[It] seems that biomarkers of oxidative stress reflect OSA severity in children more closely than biomarkers of atopic-eosinophilic airway inflammation,” the authors concluded.

No disclosures or conflicts of interest were reported.

SOURCE: Barreto M et al. Sleep Medicine. 2018. doi: 10.1016/j.sleep.2018.01.011.

The oxidative stress biomarker 8-isoprostane (8-IsoP) predicted obstructive sleep apnea (OSA) and disease severity in children better than the fractional concentration of exhaled nitric oxide (FE_NO), according to results published in Sleep Medicine.

In an analysis of 46 patients with sleep-disordered breathing and 20 controls, patients with OSA had higher levels of 8-IsoP in exhaled breath condensate (EBC) upon waking than patients with primary snoring (PS) and controls. 8-IsoP values were also correlated with apnea hypopnea index (AHI) (r, 0.40; P = .003) and oxygen saturation, also known as SaO₂, (r, –0.50; P = .001), reported Dr. Mario Berreto of the Pediatric Unit at Sant’Andrea Hospital in Rome and his coauthors.

copyright designer491/Thinkstock

The investigators studied 66 children aged 4.5-15.1 years, of whom 46 had sleep-disordered breathing (SDB) and were enrolled in the hospital’s Pediatric Sleep Center. The 20 healthy controls had no history of sleep problems, including snoring, apneas, and restless sleep. Exclusion criteria included acute respiratory infections in the 4 weeks preceding the study, chronic respiratory comorbidities, and therapy with corticosteroids or other anti-inflammatory drugs for at least 3 weeks.

Patients with SDB had a medical examination followed by overnight standard polysomnography (PSG), and EBC 8-IsoP and FE_NO measurements were collected the next morning upon waking. The SDB group also had spirometry and skin prick testing for common allergens. The children in the control group had the same tests and measurements done, except for PSG, Dr. Berreto and his colleagues wrote.

Central, obstructive, and mixed apnea events were counted according to American Academy of Sleep Medicine (AASM) criteria. AHI was defined as the average number of apnea and hypopnea events per hour of sleep. OSA was diagnosed with an AHI of one episode per hour and confirmed by the presence of SDB symptoms with AHI of one episode per hour.

Children with snoring and an AHI of less than one episode per hour were diagnosed with primary snoring (PS). Patients with an AHI greater than one episode per hour and less than five episodes per hour were diagnosed with mild OSA. Children with an AHI of greater than five episodes per hour were diagnosed with moderate to severe OSA, the authors said.

While 8-IsoP concentrations correlated with OSA severity for AHI and SaO₂, FE_NO did not, Dr. Berreto and colleagues reported.

The difference in 8-IsoP concentrations for children with SDB and controls (mean, 39.6; P = .006) was increased when adjusted using multiple linear regression (mean, 43.2; P = .007), and the difference was even more pronounced when adjusted for all potential confounding variables (mean, 53.1; P = .008). The difference in FE_NO levels between SDB patients and controls was not statistically significant (mean, 1.67; P = .358) and did not change significantly when adjusted for confounding variables.

High area under the curve values were observed for 8-IsoP as a predictor of OSA (.839; 95% confidence interval, .744-.933, P = .000). The sensitivity and specificity of cutoff values of 8-IsoP concentrations above the 50th percentile were 76.5% and 78.1%, respectively.

“[It] seems that biomarkers of oxidative stress reflect OSA severity in children more closely than biomarkers of atopic-eosinophilic airway inflammation,” the authors concluded.

No disclosures or conflicts of interest were reported.

SOURCE: Barreto M et al. Sleep Medicine. 2018. doi: 10.1016/j.sleep.2018.01.011.

MADRID – Three days of beta-lactam therapy was just as effective as 8 days for clinically stable patients presenting with community-acquired pneumonia.

In a randomized, placebo-controlled trial, 15-day cure rates were 69.9% in patients who took 3 days of antibiotics and 61.2% in those who took 8 days – a nonsignificant difference, Aurélien Dinh, MD, said at the European Society of Clinical Microbiology and Infectious Diseases annual congress.

Michele G Sullivan/MDedge News

[email protected]

SOURCE: Dinh et al. ECCMID 2018, Oral Abstract O1126.

MADRID – Three days of beta-lactam therapy was just as effective as 8 days for clinically stable patients presenting with community-acquired pneumonia.

In a randomized, placebo-controlled trial, 15-day cure rates were 69.9% in patients who took 3 days of antibiotics and 61.2% in those who took 8 days – a nonsignificant difference, Aurélien Dinh, MD, said at the European Society of Clinical Microbiology and Infectious Diseases annual congress.

Michele G Sullivan/MDedge News

[email protected]

SOURCE: Dinh et al. ECCMID 2018, Oral Abstract O1126.

MADRID – Three days of beta-lactam therapy was just as effective as 8 days for clinically stable patients presenting with community-acquired pneumonia.

In a randomized, placebo-controlled trial, 15-day cure rates were 69.9% in patients who took 3 days of antibiotics and 61.2% in those who took 8 days – a nonsignificant difference, Aurélien Dinh, MD, said at the European Society of Clinical Microbiology and Infectious Diseases annual congress.

Michele G Sullivan/MDedge News

[email protected]

SOURCE: Dinh et al. ECCMID 2018, Oral Abstract O1126.

SAN DIEGO – National guidelines for the treatment of malignant pleural mesothelioma often are not followed, a new study showed, with fewer than one-third of patients receiving cancer-directed surgery.

Another 32% received no treatment, although that didn’t seem to have an impact on median months of survival.

Still, “there can be a wide variation in median survival time, depending on clinical factors and tumor characteristics,” said study coauthor Harmik Soukiasian, MD, of Cedars-Sinai Medical Center, Los Angeles. “Given the variation in prognosis, it is quite astonishing that over 30% of MPM patients are not receiving any form of treatment. As clinicians armed with these data, we need to investigate why that is.”

Dr. Soukiasian presented the study findings at the annual meeting of the American Association for Thoracic Surgery.

MPM, a rare cancer, is mainly linked to asbestos exposure. “MPM is almost always a fatal disease, and the prognosis can only be modestly influenced by oncological treatments,” according to the authors of guidelines released in 2013. “The diagnostic process can be complex, with highly specialized advice frequently required to arrive at a definite diagnosis. Treatment varies from therapeutic nihilism to radical combined-modality treatment approaches” (J Thorac Dis. 2013 Dec;5[6]:E254-E307).

Surgical resection is a controversial treatment for MPM, Dr. Soukiasian said. It is “based on the principle of macroscopic resection of solid tumor with adjuvant therapy to treat micrometastatic disease,” he explained. “Cancer-directed surgery for MPM is usually reserved for localized epithelial type histology and is associated with a 5-year survival rate of 15%.”

For the new study, the investigators tracked 3,834 patients in the National Cancer Database (2004-2014) diagnosed with MPM clinical stages I-III. Most had epithelioid MPM (69%), with sarcomatoid (17%) and mixed subtype (15%) making up the rest. They examined whether patient treatment complied with the National Comprehensive Cancer Network (NCCN) guidelines, which recommend surgery in resectable epithelioid MPM.

SOURCE: Espinoza-Mercado F et al. General Thoracic Surgery Simultaneous Scientific Session. Abstract 18.

SAN DIEGO – National guidelines for the treatment of malignant pleural mesothelioma often are not followed, a new study showed, with fewer than one-third of patients receiving cancer-directed surgery.

Another 32% received no treatment, although that didn’t seem to have an impact on median months of survival.

Still, “there can be a wide variation in median survival time, depending on clinical factors and tumor characteristics,” said study coauthor Harmik Soukiasian, MD, of Cedars-Sinai Medical Center, Los Angeles. “Given the variation in prognosis, it is quite astonishing that over 30% of MPM patients are not receiving any form of treatment. As clinicians armed with these data, we need to investigate why that is.”

Dr. Soukiasian presented the study findings at the annual meeting of the American Association for Thoracic Surgery.

MPM, a rare cancer, is mainly linked to asbestos exposure. “MPM is almost always a fatal disease, and the prognosis can only be modestly influenced by oncological treatments,” according to the authors of guidelines released in 2013. “The diagnostic process can be complex, with highly specialized advice frequently required to arrive at a definite diagnosis. Treatment varies from therapeutic nihilism to radical combined-modality treatment approaches” (J Thorac Dis. 2013 Dec;5[6]:E254-E307).

Surgical resection is a controversial treatment for MPM, Dr. Soukiasian said. It is “based on the principle of macroscopic resection of solid tumor with adjuvant therapy to treat micrometastatic disease,” he explained. “Cancer-directed surgery for MPM is usually reserved for localized epithelial type histology and is associated with a 5-year survival rate of 15%.”

For the new study, the investigators tracked 3,834 patients in the National Cancer Database (2004-2014) diagnosed with MPM clinical stages I-III. Most had epithelioid MPM (69%), with sarcomatoid (17%) and mixed subtype (15%) making up the rest. They examined whether patient treatment complied with the National Comprehensive Cancer Network (NCCN) guidelines, which recommend surgery in resectable epithelioid MPM.

SOURCE: Espinoza-Mercado F et al. General Thoracic Surgery Simultaneous Scientific Session. Abstract 18.

SAN DIEGO – National guidelines for the treatment of malignant pleural mesothelioma often are not followed, a new study showed, with fewer than one-third of patients receiving cancer-directed surgery.

Another 32% received no treatment, although that didn’t seem to have an impact on median months of survival.

Still, “there can be a wide variation in median survival time, depending on clinical factors and tumor characteristics,” said study coauthor Harmik Soukiasian, MD, of Cedars-Sinai Medical Center, Los Angeles. “Given the variation in prognosis, it is quite astonishing that over 30% of MPM patients are not receiving any form of treatment. As clinicians armed with these data, we need to investigate why that is.”

Dr. Soukiasian presented the study findings at the annual meeting of the American Association for Thoracic Surgery.

MPM, a rare cancer, is mainly linked to asbestos exposure. “MPM is almost always a fatal disease, and the prognosis can only be modestly influenced by oncological treatments,” according to the authors of guidelines released in 2013. “The diagnostic process can be complex, with highly specialized advice frequently required to arrive at a definite diagnosis. Treatment varies from therapeutic nihilism to radical combined-modality treatment approaches” (J Thorac Dis. 2013 Dec;5[6]:E254-E307).

Surgical resection is a controversial treatment for MPM, Dr. Soukiasian said. It is “based on the principle of macroscopic resection of solid tumor with adjuvant therapy to treat micrometastatic disease,” he explained. “Cancer-directed surgery for MPM is usually reserved for localized epithelial type histology and is associated with a 5-year survival rate of 15%.”

For the new study, the investigators tracked 3,834 patients in the National Cancer Database (2004-2014) diagnosed with MPM clinical stages I-III. Most had epithelioid MPM (69%), with sarcomatoid (17%) and mixed subtype (15%) making up the rest. They examined whether patient treatment complied with the National Comprehensive Cancer Network (NCCN) guidelines, which recommend surgery in resectable epithelioid MPM.

SOURCE: Espinoza-Mercado F et al. General Thoracic Surgery Simultaneous Scientific Session. Abstract 18.

SANDESTIN, FLA. – Don’t be a slave to imaging when evaluating the patient with sarcoidosis.

“Sometimes, the worst-looking patients [on imaging] have the best prognosis,” Daniel Culver, DO, said at the annual Congress of Clinical Rheumatology. Patients with Löfgren’s syndrome are a very good example of this tenet, he said in an interview. Scans can look alarming, with multiple widespread granulomas. But Löfgren’s is generally a benign condition, despite its threatening mien.

Instead of imaging, “Let two things drive your decision to treat: danger to an organ, and quality of life,” said Dr. Culver, a pulmonologist and director of the Sarcoidosis Center of Excellence at the Cleveland Clinic in Ohio; he is also president of the World Association for Sarcoidosis.

He agrees with a decision schema published in 2015 (Clin Chest Med. 2015;36[4]:751-67).

Six factors weigh in favor of treatment:

• Symptomatic disease.
• Impaired organ function.
• Disease endangering an organ.
• Progressive disease.
• Clear-cut disease activity.
• Low likelihood of remission.

These must be balanced – with patient input as the fulcrum – against five factors that favor conservative management:

• Minimal symptoms.
• Good organ function.
• Low risk of danger to organs.
• Inactive disease.
• Higher likelihood of remission.

The decision to embark on a treatment program, usually starting with a steroid-based regimen, can’t be taken lightly, Dr. Culver said. A 2017 study showed that steroids pose a cumulative risk of toxicities for sarcoidosis patients (Respir Med. 2017 Nov;132:9-14). Patients who started steroids faced more than a doubling in the risk of a toxic side effect by 96 months when compared with those who didn’t. But even short-term steroid use increased the risk of a toxicity, Dr. Culver said. The study noted that problems can begin to occur in as little as 1 month, at a cumulative dose as low as 1 g.

[email protected]

SOURCE: Culver D. CCR 2018.

SANDESTIN, FLA. – Don’t be a slave to imaging when evaluating the patient with sarcoidosis.

“Sometimes, the worst-looking patients [on imaging] have the best prognosis,” Daniel Culver, DO, said at the annual Congress of Clinical Rheumatology. Patients with Löfgren’s syndrome are a very good example of this tenet, he said in an interview. Scans can look alarming, with multiple widespread granulomas. But Löfgren’s is generally a benign condition, despite its threatening mien.

Instead of imaging, “Let two things drive your decision to treat: danger to an organ, and quality of life,” said Dr. Culver, a pulmonologist and director of the Sarcoidosis Center of Excellence at the Cleveland Clinic in Ohio; he is also president of the World Association for Sarcoidosis.

He agrees with a decision schema published in 2015 (Clin Chest Med. 2015;36[4]:751-67).

Six factors weigh in favor of treatment:

• Symptomatic disease.
• Impaired organ function.
• Disease endangering an organ.
• Progressive disease.
• Clear-cut disease activity.
• Low likelihood of remission.

These must be balanced – with patient input as the fulcrum – against five factors that favor conservative management:

• Minimal symptoms.
• Good organ function.
• Low risk of danger to organs.
• Inactive disease.
• Higher likelihood of remission.

The decision to embark on a treatment program, usually starting with a steroid-based regimen, can’t be taken lightly, Dr. Culver said. A 2017 study showed that steroids pose a cumulative risk of toxicities for sarcoidosis patients (Respir Med. 2017 Nov;132:9-14). Patients who started steroids faced more than a doubling in the risk of a toxic side effect by 96 months when compared with those who didn’t. But even short-term steroid use increased the risk of a toxicity, Dr. Culver said. The study noted that problems can begin to occur in as little as 1 month, at a cumulative dose as low as 1 g.

[email protected]

SOURCE: Culver D. CCR 2018.

SANDESTIN, FLA. – Don’t be a slave to imaging when evaluating the patient with sarcoidosis.

“Sometimes, the worst-looking patients [on imaging] have the best prognosis,” Daniel Culver, DO, said at the annual Congress of Clinical Rheumatology. Patients with Löfgren’s syndrome are a very good example of this tenet, he said in an interview. Scans can look alarming, with multiple widespread granulomas. But Löfgren’s is generally a benign condition, despite its threatening mien.

Instead of imaging, “Let two things drive your decision to treat: danger to an organ, and quality of life,” said Dr. Culver, a pulmonologist and director of the Sarcoidosis Center of Excellence at the Cleveland Clinic in Ohio; he is also president of the World Association for Sarcoidosis.

He agrees with a decision schema published in 2015 (Clin Chest Med. 2015;36[4]:751-67).

Six factors weigh in favor of treatment:

• Symptomatic disease.
• Impaired organ function.
• Disease endangering an organ.
• Progressive disease.
• Clear-cut disease activity.
• Low likelihood of remission.

These must be balanced – with patient input as the fulcrum – against five factors that favor conservative management:

• Minimal symptoms.
• Good organ function.
• Low risk of danger to organs.
• Inactive disease.
• Higher likelihood of remission.

The decision to embark on a treatment program, usually starting with a steroid-based regimen, can’t be taken lightly, Dr. Culver said. A 2017 study showed that steroids pose a cumulative risk of toxicities for sarcoidosis patients (Respir Med. 2017 Nov;132:9-14). Patients who started steroids faced more than a doubling in the risk of a toxic side effect by 96 months when compared with those who didn’t. But even short-term steroid use increased the risk of a toxicity, Dr. Culver said. The study noted that problems can begin to occur in as little as 1 month, at a cumulative dose as low as 1 g.

[email protected]

SOURCE: Culver D. CCR 2018.

Veterans with advanced-stage lung cancer who received palliative care were less likely to commit suicide, according to new research that will be presented at an international conference of the American Thoracic Society.

“Suicide is a significant national public health problem, especially among lung cancer patients and among veterans,” said lead author, Donald R. Sullivan, MD, of the division of pulmonary and critical care medicine at Oregon Health & Science University and a member of the OHSU Knight Cancer Institute, in a statement.

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[email protected]

Veterans with advanced-stage lung cancer who received palliative care were less likely to commit suicide, according to new research that will be presented at an international conference of the American Thoracic Society.

“Suicide is a significant national public health problem, especially among lung cancer patients and among veterans,” said lead author, Donald R. Sullivan, MD, of the division of pulmonary and critical care medicine at Oregon Health & Science University and a member of the OHSU Knight Cancer Institute, in a statement.

xrender/thinkstock.com

[email protected]

Veterans with advanced-stage lung cancer who received palliative care were less likely to commit suicide, according to new research that will be presented at an international conference of the American Thoracic Society.

“Suicide is a significant national public health problem, especially among lung cancer patients and among veterans,” said lead author, Donald R. Sullivan, MD, of the division of pulmonary and critical care medicine at Oregon Health & Science University and a member of the OHSU Knight Cancer Institute, in a statement.

xrender/thinkstock.com

[email protected]

A 190-gene test for interstitial lung diseases (ILD), including idiopathic pulmonary fibrosis (IPF), is now available for use through an early-access program.

IPF can be difficult to distinguish from other ILDs, S. Samuel Weigt, MD, of the University of California, Los Angeles, and director of UCLA Health’s Interstitial Lung Disease Center, said in a statement from Veracyte, the company marketing the test.

In fact, more than half of patients with ILDs were misdiagnosed at least once, according to a study published by the Pulmonary Fibrosis Foundation.

The new test, known as the Envisia Genomic Classifier, combines RNA sequencing and machine learning to help physicians differentiate IPF from ILDs in samples obtained through transbronchial biopsy. Its specificity and sensitivity for detecting the genomic pattern of usual interstitial pneumonia, are 88% and 70%, respectively, according to the Veracyte statement.

“Multiple studies have demonstrated that the Envisia Genomic Classifier supports more confident IPF diagnosis and optimal patient management,” Bonnie Anderson, chairman and CEO of Veracyte, said in the statement.

A benefit of the new test is that its use does not require patients to undergo risky, expensive surgery, which may not even be possible for some patients, noted Dr. Weigt. “We are pleased to be one of the few medical facilities in the country to have access to this breakthrough technology.”

To obtain more information about the Envisia Genomic Classifier and how to use the early-access program, contact Veracyte at 844-464-5864 or [email protected].

[email protected]

A 190-gene test for interstitial lung diseases (ILD), including idiopathic pulmonary fibrosis (IPF), is now available for use through an early-access program.

IPF can be difficult to distinguish from other ILDs, S. Samuel Weigt, MD, of the University of California, Los Angeles, and director of UCLA Health’s Interstitial Lung Disease Center, said in a statement from Veracyte, the company marketing the test.

In fact, more than half of patients with ILDs were misdiagnosed at least once, according to a study published by the Pulmonary Fibrosis Foundation.

The new test, known as the Envisia Genomic Classifier, combines RNA sequencing and machine learning to help physicians differentiate IPF from ILDs in samples obtained through transbronchial biopsy. Its specificity and sensitivity for detecting the genomic pattern of usual interstitial pneumonia, are 88% and 70%, respectively, according to the Veracyte statement.

“Multiple studies have demonstrated that the Envisia Genomic Classifier supports more confident IPF diagnosis and optimal patient management,” Bonnie Anderson, chairman and CEO of Veracyte, said in the statement.

A benefit of the new test is that its use does not require patients to undergo risky, expensive surgery, which may not even be possible for some patients, noted Dr. Weigt. “We are pleased to be one of the few medical facilities in the country to have access to this breakthrough technology.”

To obtain more information about the Envisia Genomic Classifier and how to use the early-access program, contact Veracyte at 844-464-5864 or [email protected].

[email protected]

A 190-gene test for interstitial lung diseases (ILD), including idiopathic pulmonary fibrosis (IPF), is now available for use through an early-access program.

IPF can be difficult to distinguish from other ILDs, S. Samuel Weigt, MD, of the University of California, Los Angeles, and director of UCLA Health’s Interstitial Lung Disease Center, said in a statement from Veracyte, the company marketing the test.

In fact, more than half of patients with ILDs were misdiagnosed at least once, according to a study published by the Pulmonary Fibrosis Foundation.

The new test, known as the Envisia Genomic Classifier, combines RNA sequencing and machine learning to help physicians differentiate IPF from ILDs in samples obtained through transbronchial biopsy. Its specificity and sensitivity for detecting the genomic pattern of usual interstitial pneumonia, are 88% and 70%, respectively, according to the Veracyte statement.

“Multiple studies have demonstrated that the Envisia Genomic Classifier supports more confident IPF diagnosis and optimal patient management,” Bonnie Anderson, chairman and CEO of Veracyte, said in the statement.

A benefit of the new test is that its use does not require patients to undergo risky, expensive surgery, which may not even be possible for some patients, noted Dr. Weigt. “We are pleased to be one of the few medical facilities in the country to have access to this breakthrough technology.”

To obtain more information about the Envisia Genomic Classifier and how to use the early-access program, contact Veracyte at 844-464-5864 or [email protected].

[email protected]

A press conference on the Environmental Protection Agency’s proposed policy on research data will be held at the American Thoracic Society International Conference on Sunday, May 20.

The conference, entitled “Silencing Science: EPA’s Proposed Policy on Research Data,” will occur at 11:15 a.m. Pacific Standard Time in the San Diego Convention Center, Meeting Room 23A (Upper Level).

For information about this press conference, contact Dacia Morris, director of communications and marketing of the ATS, at 212-315-8620.

[email protected]

A press conference on the Environmental Protection Agency’s proposed policy on research data will be held at the American Thoracic Society International Conference on Sunday, May 20.

The conference, entitled “Silencing Science: EPA’s Proposed Policy on Research Data,” will occur at 11:15 a.m. Pacific Standard Time in the San Diego Convention Center, Meeting Room 23A (Upper Level).

For information about this press conference, contact Dacia Morris, director of communications and marketing of the ATS, at 212-315-8620.

[email protected]

A press conference on the Environmental Protection Agency’s proposed policy on research data will be held at the American Thoracic Society International Conference on Sunday, May 20.

The conference, entitled “Silencing Science: EPA’s Proposed Policy on Research Data,” will occur at 11:15 a.m. Pacific Standard Time in the San Diego Convention Center, Meeting Room 23A (Upper Level).

For information about this press conference, contact Dacia Morris, director of communications and marketing of the ATS, at 212-315-8620.

[email protected]

CHEST^® Physician’s coverage of the American Thoracic Society International Conference at the San Diego Convention Center begins on May 20. Here is a glimpse of some of the important research that will be presented at this meeting.

The findings of several chronic obstructive pulmonary disease (COPD) drug trials will be discussed during a session entitled “ICS [Inhaled corticosteroids] in COPD: The Pendulum Keeps Swinging,” which is scheduled to occur at 9:15 a.m. in Room 14 A-B (Mezzanine Level). Among the research to be presented are the latest findings of the phase 3 IMPACT study of 10,355 symptomatic COPD patients with a history of moderate to severe exacerbations. This study compared the use of an inhaled therapy that comprised a corticosteroid, a long-acting muscarinic antagonist (LAMA), and a long-acting beta₂-agonist (LABA) with the use of two other therapy combinations – a corticosteroid and a LABA, or a LABA and a LAMA. (Lipson DA et al. N Engl J Med. 2018 Apr 18;378:1671-80). Patients were randomized to receive either a once-daily combination of 100 mcg fluticasone furoate (a corticosteroid); 62.5 mcg of the LAMA, umeclidinium; and 25 mcg of the LABA, vilanterol; or dual inhaled therapy involving either 100 mcg fluticasone furoate plus 25 mcg of vilanterol, or 62.5 mcg of umeclidinium plus 25 mcg of vilanterol for 52 weeks.

One of the updates on this trial is that using the triple therapy significantly reduced on-treatment all-cause mortality over using the LAMA (62.5 mcg of umeclidinium) plus LABA (25 mcg of the vilanterol) dual therapy. Fifty of the patients who received triple therapy died (1.20%), versus 49 patients in the corticosteroid plus LABA group (1.19%) and 30 patients (1.88%) in the LAMA plus LABA group. A 42.1% reduction in risk of all-cause mortality occurred for patients who took the triple therapy, when compared with patients who took the LAMA/LABA combo (95% confidence interval, 11.9%-61.9%; P = .011), according to an abstract on the ATS International Conference’s website.

At the same time on Sunday, researchers will be presenting their research in a session entitled “Sleep Disordered Breathing, Cardiovascular Disease, and Mortality,” in Room 3 (Upper Level) of the convention center. One of the abstracts that will be discussed compared the long-term effectiveness of noninvasive ventilation (NIV) with continuous positive airway pressure (CPAP) in patients with obesity hypoventilation syndrome with severe obstructive sleep apnea. In this multicenter open-label, randomized, controlled trial, Sanchez Quiroga M et al. analyzed the results for 202 patients who used one of the two treatments for at least 3 years. Among this study’s findings were that the mortality rates and the number of cardiovascular events that occurred were similar in the two treatment groups. The mortality rate for patients who used CPAP was 14.7%, compared with 11.3% for the patients who received NIV (adjusted hazard ratio, 0.73; P = .439), and the cardiovascular events per 100 person-years were 5.1 for CPAP and 7.46 for NIV (P = .315). The researchers concluded that both treatments are equally effective for the long term, but that CPAP should be “the preferred treatment modality,” because it’s cheaper and easier to implement.

On Monday morning, researchers will present their findings of the short-term cardiovascular effects of 30 pulmonary arterial hypertension patients’ use of the beta blocker carvedilol, in 3.125 mg doses taken twice a day. Right ventricular systolic pressure (RVSP) decreased by an average of 11 mmHg (P = .003) in this double-blinded, randomized, controlled open-label trial with a 1-week run-in period. Cardiac output decreased by an average of –1.8 L/min (P less than .0001), but RVSP was inversely associated with cardiac output. “Short-term carvedilol could potentially identify a subgroup for long-term therapy based on initial drop in RVSP and heart rate response,” noted Farha SY et al. in their abstract. None of the patients experienced any side effects from taking the drug. More details on this research and other studies on pulmonary hypertension will be presented at 9:15 am in Area B (Hall A-B2, Ground level) of the convention center, in the session entitled “Surf’s Up: Riding the Wave of Clinical Research in Pulmonary Hypertension.”

Look for all of our on-site coverage of the conference at mdedge.com/chestphysician next week.

[email protected]

CHEST^® Physician’s coverage of the American Thoracic Society International Conference at the San Diego Convention Center begins on May 20. Here is a glimpse of some of the important research that will be presented at this meeting.

The findings of several chronic obstructive pulmonary disease (COPD) drug trials will be discussed during a session entitled “ICS [Inhaled corticosteroids] in COPD: The Pendulum Keeps Swinging,” which is scheduled to occur at 9:15 a.m. in Room 14 A-B (Mezzanine Level). Among the research to be presented are the latest findings of the phase 3 IMPACT study of 10,355 symptomatic COPD patients with a history of moderate to severe exacerbations. This study compared the use of an inhaled therapy that comprised a corticosteroid, a long-acting muscarinic antagonist (LAMA), and a long-acting beta₂-agonist (LABA) with the use of two other therapy combinations – a corticosteroid and a LABA, or a LABA and a LAMA. (Lipson DA et al. N Engl J Med. 2018 Apr 18;378:1671-80). Patients were randomized to receive either a once-daily combination of 100 mcg fluticasone furoate (a corticosteroid); 62.5 mcg of the LAMA, umeclidinium; and 25 mcg of the LABA, vilanterol; or dual inhaled therapy involving either 100 mcg fluticasone furoate plus 25 mcg of vilanterol, or 62.5 mcg of umeclidinium plus 25 mcg of vilanterol for 52 weeks.

One of the updates on this trial is that using the triple therapy significantly reduced on-treatment all-cause mortality over using the LAMA (62.5 mcg of umeclidinium) plus LABA (25 mcg of the vilanterol) dual therapy. Fifty of the patients who received triple therapy died (1.20%), versus 49 patients in the corticosteroid plus LABA group (1.19%) and 30 patients (1.88%) in the LAMA plus LABA group. A 42.1% reduction in risk of all-cause mortality occurred for patients who took the triple therapy, when compared with patients who took the LAMA/LABA combo (95% confidence interval, 11.9%-61.9%; P = .011), according to an abstract on the ATS International Conference’s website.

At the same time on Sunday, researchers will be presenting their research in a session entitled “Sleep Disordered Breathing, Cardiovascular Disease, and Mortality,” in Room 3 (Upper Level) of the convention center. One of the abstracts that will be discussed compared the long-term effectiveness of noninvasive ventilation (NIV) with continuous positive airway pressure (CPAP) in patients with obesity hypoventilation syndrome with severe obstructive sleep apnea. In this multicenter open-label, randomized, controlled trial, Sanchez Quiroga M et al. analyzed the results for 202 patients who used one of the two treatments for at least 3 years. Among this study’s findings were that the mortality rates and the number of cardiovascular events that occurred were similar in the two treatment groups. The mortality rate for patients who used CPAP was 14.7%, compared with 11.3% for the patients who received NIV (adjusted hazard ratio, 0.73; P = .439), and the cardiovascular events per 100 person-years were 5.1 for CPAP and 7.46 for NIV (P = .315). The researchers concluded that both treatments are equally effective for the long term, but that CPAP should be “the preferred treatment modality,” because it’s cheaper and easier to implement.

On Monday morning, researchers will present their findings of the short-term cardiovascular effects of 30 pulmonary arterial hypertension patients’ use of the beta blocker carvedilol, in 3.125 mg doses taken twice a day. Right ventricular systolic pressure (RVSP) decreased by an average of 11 mmHg (P = .003) in this double-blinded, randomized, controlled open-label trial with a 1-week run-in period. Cardiac output decreased by an average of –1.8 L/min (P less than .0001), but RVSP was inversely associated with cardiac output. “Short-term carvedilol could potentially identify a subgroup for long-term therapy based on initial drop in RVSP and heart rate response,” noted Farha SY et al. in their abstract. None of the patients experienced any side effects from taking the drug. More details on this research and other studies on pulmonary hypertension will be presented at 9:15 am in Area B (Hall A-B2, Ground level) of the convention center, in the session entitled “Surf’s Up: Riding the Wave of Clinical Research in Pulmonary Hypertension.”

Look for all of our on-site coverage of the conference at mdedge.com/chestphysician next week.

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CHEST^® Physician’s coverage of the American Thoracic Society International Conference at the San Diego Convention Center begins on May 20. Here is a glimpse of some of the important research that will be presented at this meeting.

The findings of several chronic obstructive pulmonary disease (COPD) drug trials will be discussed during a session entitled “ICS [Inhaled corticosteroids] in COPD: The Pendulum Keeps Swinging,” which is scheduled to occur at 9:15 a.m. in Room 14 A-B (Mezzanine Level). Among the research to be presented are the latest findings of the phase 3 IMPACT study of 10,355 symptomatic COPD patients with a history of moderate to severe exacerbations. This study compared the use of an inhaled therapy that comprised a corticosteroid, a long-acting muscarinic antagonist (LAMA), and a long-acting beta₂-agonist (LABA) with the use of two other therapy combinations – a corticosteroid and a LABA, or a LABA and a LAMA. (Lipson DA et al. N Engl J Med. 2018 Apr 18;378:1671-80). Patients were randomized to receive either a once-daily combination of 100 mcg fluticasone furoate (a corticosteroid); 62.5 mcg of the LAMA, umeclidinium; and 25 mcg of the LABA, vilanterol; or dual inhaled therapy involving either 100 mcg fluticasone furoate plus 25 mcg of vilanterol, or 62.5 mcg of umeclidinium plus 25 mcg of vilanterol for 52 weeks.

One of the updates on this trial is that using the triple therapy significantly reduced on-treatment all-cause mortality over using the LAMA (62.5 mcg of umeclidinium) plus LABA (25 mcg of the vilanterol) dual therapy. Fifty of the patients who received triple therapy died (1.20%), versus 49 patients in the corticosteroid plus LABA group (1.19%) and 30 patients (1.88%) in the LAMA plus LABA group. A 42.1% reduction in risk of all-cause mortality occurred for patients who took the triple therapy, when compared with patients who took the LAMA/LABA combo (95% confidence interval, 11.9%-61.9%; P = .011), according to an abstract on the ATS International Conference’s website.

At the same time on Sunday, researchers will be presenting their research in a session entitled “Sleep Disordered Breathing, Cardiovascular Disease, and Mortality,” in Room 3 (Upper Level) of the convention center. One of the abstracts that will be discussed compared the long-term effectiveness of noninvasive ventilation (NIV) with continuous positive airway pressure (CPAP) in patients with obesity hypoventilation syndrome with severe obstructive sleep apnea. In this multicenter open-label, randomized, controlled trial, Sanchez Quiroga M et al. analyzed the results for 202 patients who used one of the two treatments for at least 3 years. Among this study’s findings were that the mortality rates and the number of cardiovascular events that occurred were similar in the two treatment groups. The mortality rate for patients who used CPAP was 14.7%, compared with 11.3% for the patients who received NIV (adjusted hazard ratio, 0.73; P = .439), and the cardiovascular events per 100 person-years were 5.1 for CPAP and 7.46 for NIV (P = .315). The researchers concluded that both treatments are equally effective for the long term, but that CPAP should be “the preferred treatment modality,” because it’s cheaper and easier to implement.

On Monday morning, researchers will present their findings of the short-term cardiovascular effects of 30 pulmonary arterial hypertension patients’ use of the beta blocker carvedilol, in 3.125 mg doses taken twice a day. Right ventricular systolic pressure (RVSP) decreased by an average of 11 mmHg (P = .003) in this double-blinded, randomized, controlled open-label trial with a 1-week run-in period. Cardiac output decreased by an average of –1.8 L/min (P less than .0001), but RVSP was inversely associated with cardiac output. “Short-term carvedilol could potentially identify a subgroup for long-term therapy based on initial drop in RVSP and heart rate response,” noted Farha SY et al. in their abstract. None of the patients experienced any side effects from taking the drug. More details on this research and other studies on pulmonary hypertension will be presented at 9:15 am in Area B (Hall A-B2, Ground level) of the convention center, in the session entitled “Surf’s Up: Riding the Wave of Clinical Research in Pulmonary Hypertension.”

Look for all of our on-site coverage of the conference at mdedge.com/chestphysician next week.

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