Imaging

Three or more weeks of oral anticoagulation (OAC) sometimes isn’t up to the job of clearing any potentially embolic left atrial (LA) thrombi before procedures like cardioversion or catheter ablation in patients with atrial fibrillation (AF). Such OAC-defiant LA thrombi aren’t common, nor are they rare enough to ignore, suggests a new meta-analysis that might also have identified features that predispose to them.

Such predictors of LA clots that persist despite OAC could potentially guide selective use of transesophageal echocardiography (TEE) instead of more routine policies to either use or not use TEE for thrombus rule-out before rhythm-control procedures, researchers propose.

Their prevalence was about 2.7% among the study’s more than 14,000 patients who received at least 3 weeks of OAC with either vitamin K antagonists (VKA) or direct oral anticoagulants (DOAC) before undergoing TEE.

But OAC-resistant LA thrombi were two- to four-times as common in patients with than without certain features, including AF other than paroxysmal and higher CHADS2 and CHA2DS2-VASc stroke risk-stratification scores.

“TEE imaging in select patients at an elevated risk of LA thrombus, despite anticoagulation status, may be a reasonable approach to minimize the risk of thromboembolic complications following cardioversion or catheter ablation,” propose the study’s authors, led by Antony Lurie, BMSC, Population Health Research Institute, Hamilton, Ont. Their report was published in the June 15 issue of the Journal of the American College of Cardiology.

Guidelines don’t encourage TEE before cardioversion in patients who have been on OAC for at least 3 weeks, the group notes, and policies on TEE use before AF ablation vary widely regardless of anticoagulation status.

The current study suggests that 3 weeks of OAC isn’t enough for a substantial number of patients, who might be put at thromboembolic risk if TEE were to be skipped before rhythm-control procedures.

Conversely, many patients unlikely to have LA thrombi get preprocedure TEE anyway. That can happen “irrespective of how long they’ve been anticoagulated, their pattern of atrial fibrillation, or their stroke risk,” senior author Jorge A. Wong, MD, MPH, Population Health Research Institute and McMaster University, Hamilton, Ont., told this news organization.

But “TEE is an invasive imaging modality, so it is associated with small element of risk.” The current study, Dr. Wong said, points to potential risk-stratification tools clinicians might use to guide more selective TEE screening.

“At sites where TEEs are done all the time for patients undergoing ablation, one could use several of these risk markers to perhaps tailor use of TEE in individuals,” Dr. Wong said. “For example, in people with paroxysmal atrial fibrillation, we found that the risk of left atrial appendage clot was approximately 1% or less.” Screening by TEE might reasonably be avoided in such patients.

“Fortunately, continued oral anticoagulation already yields low peri-procedural stroke rates,” observes an accompanying editorial from Paulus Kirchhof, MD, and Christoph Sinning, MD, from the University Heart & Vascular Center and German Centre of Cardiovascular Research, Hamburg.

“Based on this new analysis of existing data, a risk-based use of TEE imaging in anticoagulated patients could enable further improvement in the safe delivery of rhythm control interventions in patients with AF,” the editorialists agree.

The meta-analysis covered 10 prospective and 25 retrospective studies with a total of 14,653 patients that reported whether LA thrombus was present in patients with AF or atrial flutter (AFL) who underwent TEE after at least 3 weeks of VKA or DOAC therapy. Reports for 30 of the studies identified patients by rhythm-control procedure, and the remaining five didn’t specify TEE indications.

The weighted mean prevalence of LA thrombus at TEE was 2.73% (95% confidence interval, 1.95%-3.80%). The finding was not significantly changed in separate sensitivity analyses, the report says, including one limited to studies with low risk of bias and others excluding patients with valvular AF, interrupted OAC, heparin bridging, or subtherapeutic anticoagulation, respectively.

Patients treated with VKA and DOACs showed similar prevalences of LA thrombi, with means of 2.80% and 3.12%, respectively (P = .674). The prevalence was significantly higher in patients:

• with nonparoxysmal than with paroxysmal AF/AFL (4.81% vs. 1.03%; P < .001)
• undergoing cardioversion than ablation (5.55% vs. 1.65; P < .001)
• with CHA2DS2-VASc scores of at least 3 than with scores of 2 or less (6.31% vs. 1.06%; P < .001).

A limitation of the study, observe Dr. Kirchhof and Dr. Sinning, “is that all patients had a clinical indication for a TEE, which might be a selection bias. When a thrombus was found on TEE, clinical judgment led to postponing of the procedure,” thereby avoiding potential thromboembolism.

“Thus, the paper cannot demonstrate that presence of a thrombus on TEE is related to peri-procedural ischemic stroke,” they write.

The literature puts the risk for stroke or systemic embolism at well under 1% for patients anticoagulated with either VKA or DOACs for at least 3 weeks prior to cardioversion, in contrast to the nearly 3% prevalence of LA appendage thrombus by TEE in the current analysis, Dr. Wong observed.

“So we’re seeing a lot more left atrial appendage thrombus than we would see stroke,” but there wasn’t a way to determine whether that increases the stroke risk, he agreed.Dr. Wong, Dr. Lurie, and the other authors report no relevant conflicts. Dr. Kirchhof discloses receiving partial support “from several drug and device companies active in atrial fibrillation” and to being listed as inventor on two AF-related patents held by the University of Birmingham. Dr. Sinning reports no relevant relationships. 

A version of this article first appeared on Medscape.com.

Three or more weeks of oral anticoagulation (OAC) sometimes isn’t up to the job of clearing any potentially embolic left atrial (LA) thrombi before procedures like cardioversion or catheter ablation in patients with atrial fibrillation (AF). Such OAC-defiant LA thrombi aren’t common, nor are they rare enough to ignore, suggests a new meta-analysis that might also have identified features that predispose to them.

Such predictors of LA clots that persist despite OAC could potentially guide selective use of transesophageal echocardiography (TEE) instead of more routine policies to either use or not use TEE for thrombus rule-out before rhythm-control procedures, researchers propose.

Their prevalence was about 2.7% among the study’s more than 14,000 patients who received at least 3 weeks of OAC with either vitamin K antagonists (VKA) or direct oral anticoagulants (DOAC) before undergoing TEE.

But OAC-resistant LA thrombi were two- to four-times as common in patients with than without certain features, including AF other than paroxysmal and higher CHADS2 and CHA2DS2-VASc stroke risk-stratification scores.

“TEE imaging in select patients at an elevated risk of LA thrombus, despite anticoagulation status, may be a reasonable approach to minimize the risk of thromboembolic complications following cardioversion or catheter ablation,” propose the study’s authors, led by Antony Lurie, BMSC, Population Health Research Institute, Hamilton, Ont. Their report was published in the June 15 issue of the Journal of the American College of Cardiology.

Guidelines don’t encourage TEE before cardioversion in patients who have been on OAC for at least 3 weeks, the group notes, and policies on TEE use before AF ablation vary widely regardless of anticoagulation status.

The current study suggests that 3 weeks of OAC isn’t enough for a substantial number of patients, who might be put at thromboembolic risk if TEE were to be skipped before rhythm-control procedures.

Conversely, many patients unlikely to have LA thrombi get preprocedure TEE anyway. That can happen “irrespective of how long they’ve been anticoagulated, their pattern of atrial fibrillation, or their stroke risk,” senior author Jorge A. Wong, MD, MPH, Population Health Research Institute and McMaster University, Hamilton, Ont., told this news organization.

But “TEE is an invasive imaging modality, so it is associated with small element of risk.” The current study, Dr. Wong said, points to potential risk-stratification tools clinicians might use to guide more selective TEE screening.

“At sites where TEEs are done all the time for patients undergoing ablation, one could use several of these risk markers to perhaps tailor use of TEE in individuals,” Dr. Wong said. “For example, in people with paroxysmal atrial fibrillation, we found that the risk of left atrial appendage clot was approximately 1% or less.” Screening by TEE might reasonably be avoided in such patients.

“Fortunately, continued oral anticoagulation already yields low peri-procedural stroke rates,” observes an accompanying editorial from Paulus Kirchhof, MD, and Christoph Sinning, MD, from the University Heart & Vascular Center and German Centre of Cardiovascular Research, Hamburg.

“Based on this new analysis of existing data, a risk-based use of TEE imaging in anticoagulated patients could enable further improvement in the safe delivery of rhythm control interventions in patients with AF,” the editorialists agree.

The meta-analysis covered 10 prospective and 25 retrospective studies with a total of 14,653 patients that reported whether LA thrombus was present in patients with AF or atrial flutter (AFL) who underwent TEE after at least 3 weeks of VKA or DOAC therapy. Reports for 30 of the studies identified patients by rhythm-control procedure, and the remaining five didn’t specify TEE indications.

The weighted mean prevalence of LA thrombus at TEE was 2.73% (95% confidence interval, 1.95%-3.80%). The finding was not significantly changed in separate sensitivity analyses, the report says, including one limited to studies with low risk of bias and others excluding patients with valvular AF, interrupted OAC, heparin bridging, or subtherapeutic anticoagulation, respectively.

Patients treated with VKA and DOACs showed similar prevalences of LA thrombi, with means of 2.80% and 3.12%, respectively (P = .674). The prevalence was significantly higher in patients:

• with nonparoxysmal than with paroxysmal AF/AFL (4.81% vs. 1.03%; P < .001)
• undergoing cardioversion than ablation (5.55% vs. 1.65; P < .001)
• with CHA2DS2-VASc scores of at least 3 than with scores of 2 or less (6.31% vs. 1.06%; P < .001).

A limitation of the study, observe Dr. Kirchhof and Dr. Sinning, “is that all patients had a clinical indication for a TEE, which might be a selection bias. When a thrombus was found on TEE, clinical judgment led to postponing of the procedure,” thereby avoiding potential thromboembolism.

“Thus, the paper cannot demonstrate that presence of a thrombus on TEE is related to peri-procedural ischemic stroke,” they write.

The literature puts the risk for stroke or systemic embolism at well under 1% for patients anticoagulated with either VKA or DOACs for at least 3 weeks prior to cardioversion, in contrast to the nearly 3% prevalence of LA appendage thrombus by TEE in the current analysis, Dr. Wong observed.

“So we’re seeing a lot more left atrial appendage thrombus than we would see stroke,” but there wasn’t a way to determine whether that increases the stroke risk, he agreed.Dr. Wong, Dr. Lurie, and the other authors report no relevant conflicts. Dr. Kirchhof discloses receiving partial support “from several drug and device companies active in atrial fibrillation” and to being listed as inventor on two AF-related patents held by the University of Birmingham. Dr. Sinning reports no relevant relationships. 

A version of this article first appeared on Medscape.com.

Three or more weeks of oral anticoagulation (OAC) sometimes isn’t up to the job of clearing any potentially embolic left atrial (LA) thrombi before procedures like cardioversion or catheter ablation in patients with atrial fibrillation (AF). Such OAC-defiant LA thrombi aren’t common, nor are they rare enough to ignore, suggests a new meta-analysis that might also have identified features that predispose to them.

Such predictors of LA clots that persist despite OAC could potentially guide selective use of transesophageal echocardiography (TEE) instead of more routine policies to either use or not use TEE for thrombus rule-out before rhythm-control procedures, researchers propose.

Their prevalence was about 2.7% among the study’s more than 14,000 patients who received at least 3 weeks of OAC with either vitamin K antagonists (VKA) or direct oral anticoagulants (DOAC) before undergoing TEE.

But OAC-resistant LA thrombi were two- to four-times as common in patients with than without certain features, including AF other than paroxysmal and higher CHADS2 and CHA2DS2-VASc stroke risk-stratification scores.

“TEE imaging in select patients at an elevated risk of LA thrombus, despite anticoagulation status, may be a reasonable approach to minimize the risk of thromboembolic complications following cardioversion or catheter ablation,” propose the study’s authors, led by Antony Lurie, BMSC, Population Health Research Institute, Hamilton, Ont. Their report was published in the June 15 issue of the Journal of the American College of Cardiology.

Guidelines don’t encourage TEE before cardioversion in patients who have been on OAC for at least 3 weeks, the group notes, and policies on TEE use before AF ablation vary widely regardless of anticoagulation status.

The current study suggests that 3 weeks of OAC isn’t enough for a substantial number of patients, who might be put at thromboembolic risk if TEE were to be skipped before rhythm-control procedures.

Conversely, many patients unlikely to have LA thrombi get preprocedure TEE anyway. That can happen “irrespective of how long they’ve been anticoagulated, their pattern of atrial fibrillation, or their stroke risk,” senior author Jorge A. Wong, MD, MPH, Population Health Research Institute and McMaster University, Hamilton, Ont., told this news organization.

But “TEE is an invasive imaging modality, so it is associated with small element of risk.” The current study, Dr. Wong said, points to potential risk-stratification tools clinicians might use to guide more selective TEE screening.

“At sites where TEEs are done all the time for patients undergoing ablation, one could use several of these risk markers to perhaps tailor use of TEE in individuals,” Dr. Wong said. “For example, in people with paroxysmal atrial fibrillation, we found that the risk of left atrial appendage clot was approximately 1% or less.” Screening by TEE might reasonably be avoided in such patients.

“Fortunately, continued oral anticoagulation already yields low peri-procedural stroke rates,” observes an accompanying editorial from Paulus Kirchhof, MD, and Christoph Sinning, MD, from the University Heart & Vascular Center and German Centre of Cardiovascular Research, Hamburg.

“Based on this new analysis of existing data, a risk-based use of TEE imaging in anticoagulated patients could enable further improvement in the safe delivery of rhythm control interventions in patients with AF,” the editorialists agree.

The meta-analysis covered 10 prospective and 25 retrospective studies with a total of 14,653 patients that reported whether LA thrombus was present in patients with AF or atrial flutter (AFL) who underwent TEE after at least 3 weeks of VKA or DOAC therapy. Reports for 30 of the studies identified patients by rhythm-control procedure, and the remaining five didn’t specify TEE indications.

The weighted mean prevalence of LA thrombus at TEE was 2.73% (95% confidence interval, 1.95%-3.80%). The finding was not significantly changed in separate sensitivity analyses, the report says, including one limited to studies with low risk of bias and others excluding patients with valvular AF, interrupted OAC, heparin bridging, or subtherapeutic anticoagulation, respectively.

Patients treated with VKA and DOACs showed similar prevalences of LA thrombi, with means of 2.80% and 3.12%, respectively (P = .674). The prevalence was significantly higher in patients:

• with nonparoxysmal than with paroxysmal AF/AFL (4.81% vs. 1.03%; P < .001)
• undergoing cardioversion than ablation (5.55% vs. 1.65; P < .001)
• with CHA2DS2-VASc scores of at least 3 than with scores of 2 or less (6.31% vs. 1.06%; P < .001).

A limitation of the study, observe Dr. Kirchhof and Dr. Sinning, “is that all patients had a clinical indication for a TEE, which might be a selection bias. When a thrombus was found on TEE, clinical judgment led to postponing of the procedure,” thereby avoiding potential thromboembolism.

“Thus, the paper cannot demonstrate that presence of a thrombus on TEE is related to peri-procedural ischemic stroke,” they write.

The literature puts the risk for stroke or systemic embolism at well under 1% for patients anticoagulated with either VKA or DOACs for at least 3 weeks prior to cardioversion, in contrast to the nearly 3% prevalence of LA appendage thrombus by TEE in the current analysis, Dr. Wong observed.

“So we’re seeing a lot more left atrial appendage thrombus than we would see stroke,” but there wasn’t a way to determine whether that increases the stroke risk, he agreed.Dr. Wong, Dr. Lurie, and the other authors report no relevant conflicts. Dr. Kirchhof discloses receiving partial support “from several drug and device companies active in atrial fibrillation” and to being listed as inventor on two AF-related patents held by the University of Birmingham. Dr. Sinning reports no relevant relationships. 

A version of this article first appeared on Medscape.com.

Background: Current U.S. guidelines recommend colonoscopy within 24 hours for patients presenting with high-risk or severe acute lower gastrointestinal bleeding. However, prior meta-analyses of the timing of colonoscopy relied primarily on observational studies, and a recent multicenter randomized, controlled trial suggests no substantial benefit for early colonoscopy.

Synopsis: The authors identified four randomized, controlled trials that compared early colonoscopy (defined as within 24 hours) with elective colonoscopy (defined as beyond 24 hours) and/or other diagnostic tests for patients presenting with acute lower GI bleeding. They performed a meta-analysis, including 463 patients, which showed no significant difference in risk of persistent or recurrent bleeding for early versus elective colonoscopy. The authors also found no significant differences in secondary outcomes of mortality, endoscopic intervention, primary hemostatic intervention, or identification of bleeding source. Limitations of this research include the relatively small number of studies included, and potential for selection bias in the original studies. Notably two of the four studies included were prematurely terminated before their planned sample sizes were reached.

Bottom line: In patients hospitalized with acute lower GI bleeding, colonoscopy within 24 hours may not reduce further bleeding or mortality when compared with elective colonoscopy.

Citation: Tsay C et al. Early colonoscopy does not improve outcomes of patients with lower gastrointestinal bleeding: Systematic review of randomized trials. Clin Gastroenterol Hepatol. 2019 Dec 13. doi: 10.1016/j.cgh.2019.11.061.

Dr. Hu is a hospitalist at Beth Israel Deaconess Medical Center, and instructor in medicine, Harvard Medical School, both in Boston.

Background: Current U.S. guidelines recommend colonoscopy within 24 hours for patients presenting with high-risk or severe acute lower gastrointestinal bleeding. However, prior meta-analyses of the timing of colonoscopy relied primarily on observational studies, and a recent multicenter randomized, controlled trial suggests no substantial benefit for early colonoscopy.

Synopsis: The authors identified four randomized, controlled trials that compared early colonoscopy (defined as within 24 hours) with elective colonoscopy (defined as beyond 24 hours) and/or other diagnostic tests for patients presenting with acute lower GI bleeding. They performed a meta-analysis, including 463 patients, which showed no significant difference in risk of persistent or recurrent bleeding for early versus elective colonoscopy. The authors also found no significant differences in secondary outcomes of mortality, endoscopic intervention, primary hemostatic intervention, or identification of bleeding source. Limitations of this research include the relatively small number of studies included, and potential for selection bias in the original studies. Notably two of the four studies included were prematurely terminated before their planned sample sizes were reached.

Bottom line: In patients hospitalized with acute lower GI bleeding, colonoscopy within 24 hours may not reduce further bleeding or mortality when compared with elective colonoscopy.

Citation: Tsay C et al. Early colonoscopy does not improve outcomes of patients with lower gastrointestinal bleeding: Systematic review of randomized trials. Clin Gastroenterol Hepatol. 2019 Dec 13. doi: 10.1016/j.cgh.2019.11.061.

Dr. Hu is a hospitalist at Beth Israel Deaconess Medical Center, and instructor in medicine, Harvard Medical School, both in Boston.

Background: Current U.S. guidelines recommend colonoscopy within 24 hours for patients presenting with high-risk or severe acute lower gastrointestinal bleeding. However, prior meta-analyses of the timing of colonoscopy relied primarily on observational studies, and a recent multicenter randomized, controlled trial suggests no substantial benefit for early colonoscopy.

Synopsis: The authors identified four randomized, controlled trials that compared early colonoscopy (defined as within 24 hours) with elective colonoscopy (defined as beyond 24 hours) and/or other diagnostic tests for patients presenting with acute lower GI bleeding. They performed a meta-analysis, including 463 patients, which showed no significant difference in risk of persistent or recurrent bleeding for early versus elective colonoscopy. The authors also found no significant differences in secondary outcomes of mortality, endoscopic intervention, primary hemostatic intervention, or identification of bleeding source. Limitations of this research include the relatively small number of studies included, and potential for selection bias in the original studies. Notably two of the four studies included were prematurely terminated before their planned sample sizes were reached.

Bottom line: In patients hospitalized with acute lower GI bleeding, colonoscopy within 24 hours may not reduce further bleeding or mortality when compared with elective colonoscopy.

Citation: Tsay C et al. Early colonoscopy does not improve outcomes of patients with lower gastrointestinal bleeding: Systematic review of randomized trials. Clin Gastroenterol Hepatol. 2019 Dec 13. doi: 10.1016/j.cgh.2019.11.061.

Dr. Hu is a hospitalist at Beth Israel Deaconess Medical Center, and instructor in medicine, Harvard Medical School, both in Boston.

Two experts scoured the medical journals for the practice-changing research most relevant to hospital medicine in 2020 at a recent session at SHM Converge, the annual conference of the Society of Hospital Medicine.

The presenters chose findings they considered either practice changing or practice confirming, and in areas over which hospitalists have at least some control. Here is what they highlighted:
 

IV iron administration before hospital discharge

In a randomized double-blind, placebo-controlled trial across 121 centers in Europe, South America, and Singapore, 1,108 patients hospitalized with acute heart failure and iron deficiency were randomized to receive intravenous ferric carboxymaltose or placebo, with a first dose before discharge and a second at 6 weeks.

Those in the intravenous iron group had a significant reduction in hospitalizations for heart failure up to 52 weeks after randomization, but there was no significant reduction in deaths because of heart failure. There was no difference in serious adverse events.

Anthony Breu, MD, assistant professor of medicine at Harvard Medical School, Boston, said the findings should alter hospitalist practice.

“In patients hospitalized with acute heart failure and left ventricular ejection fraction of less than 50%, check iron studies and start IV iron prior to discharge if they have iron deficiency, with or without anemia,” he said.
 

Apixaban versus dalteparin for venous thromboembolism in cancer

This noninferiority trial involved 1,155 adults with cancer who had symptomatic or incidental acute proximal deep vein thrombosis or pulmonary embolism. The patients were randomized to receive oral apixaban or subcutaneous dalteparin for 6 months.

Patients in the apixaban group had a significantly lower rate of recurrent venous thromboembolism (P = .09), with no increase in major bleeds, Dr. Breu said. He noted that those with brain cancer and leukemia were excluded.

“In patients with cancer and acute venous thromboembolism, consider apixaban as your first-line treatment, with some caveats,” he said.
 

Clinical decision rule for penicillin allergy

With fewer than 10% of patients who report a penicillin allergy actually testing positive on a standard allergy test, a simpler way to predict an allergy would help clinicians, said Shoshana Herzig, MD, MPH, associate professor of medicine at Harvard Medical School.

A 622-patient cohort that had undergone penicillin allergy testing was used to identify factors that could help predict an allergy. A scoring system called PEN-FAST was developed based on five factors – a penicillin allergy reported by the patient, 5 years or less since the last reaction (2 points); anaphylaxis or angioedema, or severe cutaneous adverse reaction (2 points); and treatment being required for the reaction (1 point).

Researchers, after validation at three sites, found that a score below a threshold identified a group that had a 96% negative predictive value for penicillin allergy skin testing.

“A PEN-FAST score of less than 3 can be used to identify patients with reported penicillin allergy who can likely proceed safely to oral challenge,” Dr. Herzig said. She said the findings would benefit from validation in an inpatient setting.
 

Prehydration before contrast-enhanced computed tomography in CKD

Previous studies have found that omitting prehydration was noninferior to volume expansion with isotonic saline, and this trial looked at omission versus sodium bicarbonate hydration.

Participants were 523 adults with stage 3 chronic kidney disease who were getting elective outpatient CT with contrast. They were randomized to either no prehydration or prehydration with 250 mL of 1.4% sodium bicarbonate an hour before CT.

Researchers found that postcontrast acute kidney injury was rare even in this high-risk patient population overall, and that withholding prehydration was noninferior to prehydration with sodium bicarbonate, Dr. Herzig said.
 

Gabapentin for alcohol use disorder in those with alcohol withdrawal symptoms

Dr. Breu noted that only about one in five patients with alcohol use disorder receive medications to help preserve abstinence or to reduce drinking, and many medications target cravings but not symptoms of withdrawal.

In a double-blind, randomized, placebo-controlled trial at a single academic outpatient medical center in South Carolina, 90 patients were randomized to receive titrated gabapentin or placebo for 16 weeks.

Researchers found that, among those with abstinence of at least 2 days, gabapentin reduced the number of days of heavy drinking and the days of any drinking, especially in those with high symptoms of withdrawal.

“In patients with alcohol use disorder and high alcohol withdrawal symptoms, consider gabapentin to help reduce heavy drinking or maintain abstinence,” Dr. Breu said.
 

Hospitalist continuity of care and patient outcomes

In a retrospective study examining all medical admissions of Medicare patients with a 3- to 6-day length of stay, and in which all general medical care was provided by hospitalists, researchers examined the effects of continuity of care. Nearly 115,000 patient stays were included in the study, which covered 229 Texas hospitals.

The stays were grouped into quartiles of continuity of care, based on the number of hospitalists involved in a patient’s stay. Greater continuity was associated with lower 30-day mortality, with a linear relationship between the two. Researchers also found costs to be lower as continuity increased.

“Efforts by hospitals and hospitalist groups to promote working schedules with more continuity,” Dr. Herzig said, “could lead to improved postdischarge outcomes.”


 

Two experts scoured the medical journals for the practice-changing research most relevant to hospital medicine in 2020 at a recent session at SHM Converge, the annual conference of the Society of Hospital Medicine.

The presenters chose findings they considered either practice changing or practice confirming, and in areas over which hospitalists have at least some control. Here is what they highlighted:
 

IV iron administration before hospital discharge

In a randomized double-blind, placebo-controlled trial across 121 centers in Europe, South America, and Singapore, 1,108 patients hospitalized with acute heart failure and iron deficiency were randomized to receive intravenous ferric carboxymaltose or placebo, with a first dose before discharge and a second at 6 weeks.

Those in the intravenous iron group had a significant reduction in hospitalizations for heart failure up to 52 weeks after randomization, but there was no significant reduction in deaths because of heart failure. There was no difference in serious adverse events.

Anthony Breu, MD, assistant professor of medicine at Harvard Medical School, Boston, said the findings should alter hospitalist practice.

“In patients hospitalized with acute heart failure and left ventricular ejection fraction of less than 50%, check iron studies and start IV iron prior to discharge if they have iron deficiency, with or without anemia,” he said.
 

Apixaban versus dalteparin for venous thromboembolism in cancer

This noninferiority trial involved 1,155 adults with cancer who had symptomatic or incidental acute proximal deep vein thrombosis or pulmonary embolism. The patients were randomized to receive oral apixaban or subcutaneous dalteparin for 6 months.

Patients in the apixaban group had a significantly lower rate of recurrent venous thromboembolism (P = .09), with no increase in major bleeds, Dr. Breu said. He noted that those with brain cancer and leukemia were excluded.

“In patients with cancer and acute venous thromboembolism, consider apixaban as your first-line treatment, with some caveats,” he said.
 

Clinical decision rule for penicillin allergy

With fewer than 10% of patients who report a penicillin allergy actually testing positive on a standard allergy test, a simpler way to predict an allergy would help clinicians, said Shoshana Herzig, MD, MPH, associate professor of medicine at Harvard Medical School.

A 622-patient cohort that had undergone penicillin allergy testing was used to identify factors that could help predict an allergy. A scoring system called PEN-FAST was developed based on five factors – a penicillin allergy reported by the patient, 5 years or less since the last reaction (2 points); anaphylaxis or angioedema, or severe cutaneous adverse reaction (2 points); and treatment being required for the reaction (1 point).

Researchers, after validation at three sites, found that a score below a threshold identified a group that had a 96% negative predictive value for penicillin allergy skin testing.

“A PEN-FAST score of less than 3 can be used to identify patients with reported penicillin allergy who can likely proceed safely to oral challenge,” Dr. Herzig said. She said the findings would benefit from validation in an inpatient setting.
 

Prehydration before contrast-enhanced computed tomography in CKD

Previous studies have found that omitting prehydration was noninferior to volume expansion with isotonic saline, and this trial looked at omission versus sodium bicarbonate hydration.

Participants were 523 adults with stage 3 chronic kidney disease who were getting elective outpatient CT with contrast. They were randomized to either no prehydration or prehydration with 250 mL of 1.4% sodium bicarbonate an hour before CT.

Researchers found that postcontrast acute kidney injury was rare even in this high-risk patient population overall, and that withholding prehydration was noninferior to prehydration with sodium bicarbonate, Dr. Herzig said.
 

Gabapentin for alcohol use disorder in those with alcohol withdrawal symptoms

Dr. Breu noted that only about one in five patients with alcohol use disorder receive medications to help preserve abstinence or to reduce drinking, and many medications target cravings but not symptoms of withdrawal.

In a double-blind, randomized, placebo-controlled trial at a single academic outpatient medical center in South Carolina, 90 patients were randomized to receive titrated gabapentin or placebo for 16 weeks.

Researchers found that, among those with abstinence of at least 2 days, gabapentin reduced the number of days of heavy drinking and the days of any drinking, especially in those with high symptoms of withdrawal.

“In patients with alcohol use disorder and high alcohol withdrawal symptoms, consider gabapentin to help reduce heavy drinking or maintain abstinence,” Dr. Breu said.
 

Hospitalist continuity of care and patient outcomes

In a retrospective study examining all medical admissions of Medicare patients with a 3- to 6-day length of stay, and in which all general medical care was provided by hospitalists, researchers examined the effects of continuity of care. Nearly 115,000 patient stays were included in the study, which covered 229 Texas hospitals.

The stays were grouped into quartiles of continuity of care, based on the number of hospitalists involved in a patient’s stay. Greater continuity was associated with lower 30-day mortality, with a linear relationship between the two. Researchers also found costs to be lower as continuity increased.

“Efforts by hospitals and hospitalist groups to promote working schedules with more continuity,” Dr. Herzig said, “could lead to improved postdischarge outcomes.”


 

Two experts scoured the medical journals for the practice-changing research most relevant to hospital medicine in 2020 at a recent session at SHM Converge, the annual conference of the Society of Hospital Medicine.

The presenters chose findings they considered either practice changing or practice confirming, and in areas over which hospitalists have at least some control. Here is what they highlighted:
 

IV iron administration before hospital discharge

In a randomized double-blind, placebo-controlled trial across 121 centers in Europe, South America, and Singapore, 1,108 patients hospitalized with acute heart failure and iron deficiency were randomized to receive intravenous ferric carboxymaltose or placebo, with a first dose before discharge and a second at 6 weeks.

Those in the intravenous iron group had a significant reduction in hospitalizations for heart failure up to 52 weeks after randomization, but there was no significant reduction in deaths because of heart failure. There was no difference in serious adverse events.

Anthony Breu, MD, assistant professor of medicine at Harvard Medical School, Boston, said the findings should alter hospitalist practice.

“In patients hospitalized with acute heart failure and left ventricular ejection fraction of less than 50%, check iron studies and start IV iron prior to discharge if they have iron deficiency, with or without anemia,” he said.
 

Apixaban versus dalteparin for venous thromboembolism in cancer

This noninferiority trial involved 1,155 adults with cancer who had symptomatic or incidental acute proximal deep vein thrombosis or pulmonary embolism. The patients were randomized to receive oral apixaban or subcutaneous dalteparin for 6 months.

Patients in the apixaban group had a significantly lower rate of recurrent venous thromboembolism (P = .09), with no increase in major bleeds, Dr. Breu said. He noted that those with brain cancer and leukemia were excluded.

“In patients with cancer and acute venous thromboembolism, consider apixaban as your first-line treatment, with some caveats,” he said.
 

Clinical decision rule for penicillin allergy

With fewer than 10% of patients who report a penicillin allergy actually testing positive on a standard allergy test, a simpler way to predict an allergy would help clinicians, said Shoshana Herzig, MD, MPH, associate professor of medicine at Harvard Medical School.

A 622-patient cohort that had undergone penicillin allergy testing was used to identify factors that could help predict an allergy. A scoring system called PEN-FAST was developed based on five factors – a penicillin allergy reported by the patient, 5 years or less since the last reaction (2 points); anaphylaxis or angioedema, or severe cutaneous adverse reaction (2 points); and treatment being required for the reaction (1 point).

Researchers, after validation at three sites, found that a score below a threshold identified a group that had a 96% negative predictive value for penicillin allergy skin testing.

“A PEN-FAST score of less than 3 can be used to identify patients with reported penicillin allergy who can likely proceed safely to oral challenge,” Dr. Herzig said. She said the findings would benefit from validation in an inpatient setting.
 

Prehydration before contrast-enhanced computed tomography in CKD

Previous studies have found that omitting prehydration was noninferior to volume expansion with isotonic saline, and this trial looked at omission versus sodium bicarbonate hydration.

Participants were 523 adults with stage 3 chronic kidney disease who were getting elective outpatient CT with contrast. They were randomized to either no prehydration or prehydration with 250 mL of 1.4% sodium bicarbonate an hour before CT.

Researchers found that postcontrast acute kidney injury was rare even in this high-risk patient population overall, and that withholding prehydration was noninferior to prehydration with sodium bicarbonate, Dr. Herzig said.
 

Gabapentin for alcohol use disorder in those with alcohol withdrawal symptoms

Dr. Breu noted that only about one in five patients with alcohol use disorder receive medications to help preserve abstinence or to reduce drinking, and many medications target cravings but not symptoms of withdrawal.

In a double-blind, randomized, placebo-controlled trial at a single academic outpatient medical center in South Carolina, 90 patients were randomized to receive titrated gabapentin or placebo for 16 weeks.

Researchers found that, among those with abstinence of at least 2 days, gabapentin reduced the number of days of heavy drinking and the days of any drinking, especially in those with high symptoms of withdrawal.

“In patients with alcohol use disorder and high alcohol withdrawal symptoms, consider gabapentin to help reduce heavy drinking or maintain abstinence,” Dr. Breu said.
 

Hospitalist continuity of care and patient outcomes

In a retrospective study examining all medical admissions of Medicare patients with a 3- to 6-day length of stay, and in which all general medical care was provided by hospitalists, researchers examined the effects of continuity of care. Nearly 115,000 patient stays were included in the study, which covered 229 Texas hospitals.

The stays were grouped into quartiles of continuity of care, based on the number of hospitalists involved in a patient’s stay. Greater continuity was associated with lower 30-day mortality, with a linear relationship between the two. Researchers also found costs to be lower as continuity increased.

“Efforts by hospitals and hospitalist groups to promote working schedules with more continuity,” Dr. Herzig said, “could lead to improved postdischarge outcomes.”


 

During my residency training years, I had many rosy and bold dreams about the future of psychiatry, hoping for many breakthroughs.

Early on, I decided to pursue an academic career, and specifically to focus on the neurobiology of schizophrenia, bipolar disorder, and other psychoses. I secured a neuroscience mentor, conducted a research project, and presented my findings at the American Psychiatric Association Annual Meeting. Although at the time everyone used the term “functional” to describe mental illnesses, I was convinced that they were all neurologic conditions, with prominent psychiatric manifestations. And I have been proven right.

After my residency, I eagerly pursued a neuroscience fellowship at the National Institutes of Health. My fantasy was that during my career as a psychiatric neuroscientist, brain exploration would uncover the many mysteries of psychiatric disorders. I was insightful enough to recognize that what I envisioned for the future of psychiatry qualified as science fiction, but I never stopped dreaming.

Today, the advances in psychiatric neuroscience that were unimaginable during my residency have become dazzling discoveries. My journey as a psychiatric neuroscientist has been more thrilling than I ever imagined. I recall doing postmortem research on the brains of hundreds of deceased psychiatric patients, noticing sulci widening and ventricular dilatation, and wondering whether one day we would be able to detect those atrophic changes while the patients were alive. Although I measured those changes in postmortem brains, I was cognizant that due to preservation artifacts, such measurements were less reliable than measurements of living brains.

And then the advent of neuroimaging fulfilled my fantasies. This began towards the end of my fellowship, and has exploded with neurobiologic findings throughout my academic career. Then came dramatic methodologies to probe brain molecular and cellular pathologies, followed by breakthrough clinical advances. Entirely new vistas of research into psychiatric brain disorders are opening every day. The exhilaration will never end!

From science fiction to clinical reality

Here is a quick outline of some of the “science fiction” of psychiatry that has come true since my training days. Back then, these discoveries were completely absent from the radar screen of psychiatry, when it was still a fledgling medical specialty struggling to emerge from the dominant yet nonempirical era of psychoanalysis.

Brain exploration methods. Unpre­cedented breakthroughs in computer technology have allowed psychiatric neuroscientists to create a new field of neuroimaging research that includes:

• cerebral blood flow (CBF)
• position emission tomography (PET)
• single photon emission computed tomography (SPECT).

Continue to: These functional neuroimaging...

These functional neuroimaging methods (using ionizing radiation) have enabled clinicians to see abnormal blood flow patterns in the brains of living patients. One of the earliest findings was hypofrontality in patients with schizophrenia, implicating frontal pathology in this severe brain disorder. PET was also used for dopamine and serotonin receptor imaging.

Computerized axia tomography. Compared with skull X-rays, CT (“CAT”) scans provided a more detailed view of brain tissue, and began a structural neuroimaging revolution that enriched psychiatric research, but also was applied to organs other than the brain.

Magnetic resonance imaging (MRI) became the “big kahuna” of neuroimaging when arrived in the early 1980s and quickly supplanted CT research because it is safer (no ionizing radiation, and it can be repeated multiple times with or without tasks). It also provided exquisite neuroanatomical details of brain tissue with stunning fidelity. Subsequently, several MRI techniques/software programs were developed that advanced research in psychiatry to multiple new frontiers, including:

• Morphological neuroimaging with MRI
• Magnetic resonance spectroscopy (MRS), which acts like a living, noninvasive biopsy of several chemicals (such as choline, lactate, glutamine, adenosine triphosphate, and the neuronal marker N-acetylcysteine) in a small volume (≤1 cc) of neural tissue in various regions
• Functional MRI (fMRI), which measures blood flow changes during actual or imagined tasks in the brains of patients vs healthy controls
• Diffusion tensor imaging (DTI), which evaluates the integrity of white matter (60% of brain volume, including 137,000 miles of myelinated fibers) by measuring the flow of water inside myelinated fibers (anisotropy and diffusivity). DTI of the corpus callosum, the largest brain commissure that is comprised of 200 million interhemispheric fibers, has revealed many abnormalities. This was one of the structures I investigated during my fellowship, including a histopathological study.¹

All 4 of these neuroimaging techniques continue to generate a wealth of data about brain structure and function in psychosis, mood disorders, anxiety disorders, borderline personality disorder, obsessive-compulsive disorder, eating disorders, and substance use disorders. All these discoveries were utterly impossible to predict during my residency. I am proud to have published the first reports in the literature of ventricular enlargement in patients with bipolar disorder,² cortical atrophy in schizophrenia and mania,³ reductions of hippocampal volume in patients with schizophrenia using MRS,⁴ and progressive brain atrophy in patients with schizophrenia.⁵ It is especially gratifying that I played a small role in translating my science fiction fantasies into clinical reality!

Other breakthrough methodologies that are advancing psychiatric neuroscience today but were science fiction during my residency days include:

• Pluripotent stem cells, which enable the de-differentiation of adult skin cells and then re-differentiating them into any type of cell, including neurons. This allows researchers to conduct studies on any patient’s brain cells without needing to do an invasive, high-risk brain biopsy. As a young resident, I would never have predicted that this virtual brain biopsy would be possible!
• Optogenetics, which enables controlling cell behavior using light and genetically encoded light-sensitive proteins. This triggered a cornucopia of neuroscience discoveries by using optogenetics to modulate cell-signaling cascades to understand cellular biology. Halorhodopsin and bacteriorhodopsin are used as tools to turn neurons off or on rapidly and safely.
• Genome-wide association studies (GWAS) have revolutionized the field of molecular neurogenetics and are enabling clinicians to detect risk genes by comparing the DNA samples of thousands of psychiatric patients with thousands of healthy controls. This is how several hundred risk genes have been identified for schizophrenia, bipolar disorder, autism spectrum disorder, and more to come.
• Clustered regularly interspaced short palindromic repeats (CRISPR) is a remarkable genetic “scissors” (that earned its inventors the 2020 Nobel Prize) that allows splicing out a disease gene and splicing in a normal gene. This will have an enormous future application in preventing an adulthood illness at its roots during fetal life. The future medical implications for psychiatric disorders are prodigious!

Continue to: Clinical advances

Clinical advances. Many therapies or approaches that did not exist during my residency (and how I dreamed about them back then!) are available to today’s clinicians. These include:

• Rapid-acting antidepressants that reverse severe and chronic depression and suicidal urges within a few hours or a couple of days. As a resident, I waited for weeks or months to see patients with depression reach the full remission that is now achieved practically the same day with IV ketamine, intranasal esketamine, IV scopolamine, and inhalable nitrous oxide. During my residency, the closest thing we had to a rapid-acting treatment for depression was electroconvulsive therapy (ECT), but that usually took 2 to 3 weeks. Psychiatric clinicians should never cease to appreciate how an intractable, treatment-refractory depression can rapidly be turned off like a light switch, restoring normal mood to desperately ill persons.
• Neuromodulation techniques are flourishing. Beyond ECT, transcranial magnetic stimulation (TMS), vagus nerve stimulation (VNS), transcranial direct current stimulation (tDCS), deep brain stimulation (DBS), low field magnetic stimulation (LFMS), magnetic seizure therapy (MST), near-infrared radiation (NIR), and focused ultrasound (FUS) are approved or under development, offering millions of patients with various neuropsychiatric disorders potential recovery not with pharmacotherapy, but via a brain-targeted approach.
• Telepsychiatry. Now taken for granted during the COVID-19 pandemic, telepsychiatry was completely unimaginable during my residency. Yes, we had phones, but not smartphones! The only “zoom” we knew was the furious sound of a sports car engine! To be able to see and evaluate a patient literally anywhere in the world was science fiction personified! Increased remote access to psychiatric care by patients everywhere is a truly remarkable advance that helped avoid a disastrous lack of psychiatric treatment during the current pandemic that brought in-person interactions between psychiatric physicians and their patients to a screeching halt.
• Neurobiologic effects of psychotherapy. Viewing psychotherapy as a neurobiologic treatment was totally unknown and unimaginable during my residency. I was heavily trained in various types of psychotherapies, but not once did any of my supervisors mention experiential neuroplasticity as a brain-altering process, or that psychotherapy changes brain structure, induces experimental neuroplasticity, and induces billions of dendritic spines in patients’ cortex and limbic structures, helping them connect the dots and develop new insights. No one knew that psychotherapy can mimic the neural effects of pharmacotherapy.
• Immunomodulatory effects of psychotherapy. It was completely unknown that psychotherapies such as cognitive-behavioral therapy can lower levels of inflammatory biomarkers in patients’ CSF and serum. Back then, no one imagined that psychotherapy had immunomodulatory effects. These discoveries are revolutionary for us psychiatrists and confirm the neurobiologic mechanisms of psychotherapy for every patient we treat.
• Epigenetics. This was rarely, if ever, mentioned when I was a resident. We knew from clinical studies that children who were abused or neglected often develop severe mood or psychotic disorders in adulthood. But we did not know that trauma modifies some genes via under- or overexpression, and that such epigenetic changes alter brain development towards psychopathology. The mysteries of psychiatric brain disorders generated by childhood trauma have been clarified by advances in epigenetics.

Aspirational, futuristic therapies. Even now, as a seasoned psychiatric neuroscientist, I continue to dream. Research is providing many clues for potentially radical psychiatric treatments that go beyond standard antipsychotics, antidepressants, mood stabilizers, or anxiolytics. But today, I fully expect that scientific dreams eventually come true through research. For example, the following neuroscientific therapeutics strategies may someday become routine in clinical practice:

• microglia inhibition
• mitochondria repair
• anti-apoptotic therapy
• white matter connectivity restoration
• neuroprotection (enhancing neurogenesis, increasing neurotropic factors, and enhancing synaptogenesis)
• reverse glutamate N-methyl-d-aspartate hypofunction
• prevent amyloid formation.

Data analysis breakthroughs. Side-by-side with the explosion of new findings and amassing mountains of data in psychiatric neuroscience, unprecedented and revolutionary data-management techniques have emerged to facilitate the herculean task of data analysis to extract the mythical needle in a haystack and derive the overall impact of masses of data. These techniques, whose names were not in our vocabulary during my residency days, include:

• machine learning
• artificial intelligence
• deep learning
• big data.

With the help of powerful computers and ingenious software, discovering critical nuggets of knowledge about the brain and predicting the best approaches to healing dysfunctional brains are now possible. Those powerful methods of analyzing massive data are the vehicles for transforming science fiction to reality by assembling the jigsaw puzzle(s) of the human brain, arguably the last frontier in medical science.

My life experiences as a psychiatric neuroscientist have convinced me that nothing is beyond the reach of scientific research. Unraveling the divine brain’s complexities will eventually become reality. So, let us never stop dreaming and fantasizing!

During my residency training years, I had many rosy and bold dreams about the future of psychiatry, hoping for many breakthroughs.

Early on, I decided to pursue an academic career, and specifically to focus on the neurobiology of schizophrenia, bipolar disorder, and other psychoses. I secured a neuroscience mentor, conducted a research project, and presented my findings at the American Psychiatric Association Annual Meeting. Although at the time everyone used the term “functional” to describe mental illnesses, I was convinced that they were all neurologic conditions, with prominent psychiatric manifestations. And I have been proven right.

After my residency, I eagerly pursued a neuroscience fellowship at the National Institutes of Health. My fantasy was that during my career as a psychiatric neuroscientist, brain exploration would uncover the many mysteries of psychiatric disorders. I was insightful enough to recognize that what I envisioned for the future of psychiatry qualified as science fiction, but I never stopped dreaming.

Today, the advances in psychiatric neuroscience that were unimaginable during my residency have become dazzling discoveries. My journey as a psychiatric neuroscientist has been more thrilling than I ever imagined. I recall doing postmortem research on the brains of hundreds of deceased psychiatric patients, noticing sulci widening and ventricular dilatation, and wondering whether one day we would be able to detect those atrophic changes while the patients were alive. Although I measured those changes in postmortem brains, I was cognizant that due to preservation artifacts, such measurements were less reliable than measurements of living brains.

And then the advent of neuroimaging fulfilled my fantasies. This began towards the end of my fellowship, and has exploded with neurobiologic findings throughout my academic career. Then came dramatic methodologies to probe brain molecular and cellular pathologies, followed by breakthrough clinical advances. Entirely new vistas of research into psychiatric brain disorders are opening every day. The exhilaration will never end!

From science fiction to clinical reality

Here is a quick outline of some of the “science fiction” of psychiatry that has come true since my training days. Back then, these discoveries were completely absent from the radar screen of psychiatry, when it was still a fledgling medical specialty struggling to emerge from the dominant yet nonempirical era of psychoanalysis.

Brain exploration methods. Unpre­cedented breakthroughs in computer technology have allowed psychiatric neuroscientists to create a new field of neuroimaging research that includes:

• cerebral blood flow (CBF)
• position emission tomography (PET)
• single photon emission computed tomography (SPECT).

Continue to: These functional neuroimaging...

These functional neuroimaging methods (using ionizing radiation) have enabled clinicians to see abnormal blood flow patterns in the brains of living patients. One of the earliest findings was hypofrontality in patients with schizophrenia, implicating frontal pathology in this severe brain disorder. PET was also used for dopamine and serotonin receptor imaging.

Computerized axia tomography. Compared with skull X-rays, CT (“CAT”) scans provided a more detailed view of brain tissue, and began a structural neuroimaging revolution that enriched psychiatric research, but also was applied to organs other than the brain.

Magnetic resonance imaging (MRI) became the “big kahuna” of neuroimaging when arrived in the early 1980s and quickly supplanted CT research because it is safer (no ionizing radiation, and it can be repeated multiple times with or without tasks). It also provided exquisite neuroanatomical details of brain tissue with stunning fidelity. Subsequently, several MRI techniques/software programs were developed that advanced research in psychiatry to multiple new frontiers, including:

• Morphological neuroimaging with MRI
• Magnetic resonance spectroscopy (MRS), which acts like a living, noninvasive biopsy of several chemicals (such as choline, lactate, glutamine, adenosine triphosphate, and the neuronal marker N-acetylcysteine) in a small volume (≤1 cc) of neural tissue in various regions
• Functional MRI (fMRI), which measures blood flow changes during actual or imagined tasks in the brains of patients vs healthy controls
• Diffusion tensor imaging (DTI), which evaluates the integrity of white matter (60% of brain volume, including 137,000 miles of myelinated fibers) by measuring the flow of water inside myelinated fibers (anisotropy and diffusivity). DTI of the corpus callosum, the largest brain commissure that is comprised of 200 million interhemispheric fibers, has revealed many abnormalities. This was one of the structures I investigated during my fellowship, including a histopathological study.¹

All 4 of these neuroimaging techniques continue to generate a wealth of data about brain structure and function in psychosis, mood disorders, anxiety disorders, borderline personality disorder, obsessive-compulsive disorder, eating disorders, and substance use disorders. All these discoveries were utterly impossible to predict during my residency. I am proud to have published the first reports in the literature of ventricular enlargement in patients with bipolar disorder,² cortical atrophy in schizophrenia and mania,³ reductions of hippocampal volume in patients with schizophrenia using MRS,⁴ and progressive brain atrophy in patients with schizophrenia.⁵ It is especially gratifying that I played a small role in translating my science fiction fantasies into clinical reality!

Other breakthrough methodologies that are advancing psychiatric neuroscience today but were science fiction during my residency days include:

• Pluripotent stem cells, which enable the de-differentiation of adult skin cells and then re-differentiating them into any type of cell, including neurons. This allows researchers to conduct studies on any patient’s brain cells without needing to do an invasive, high-risk brain biopsy. As a young resident, I would never have predicted that this virtual brain biopsy would be possible!
• Optogenetics, which enables controlling cell behavior using light and genetically encoded light-sensitive proteins. This triggered a cornucopia of neuroscience discoveries by using optogenetics to modulate cell-signaling cascades to understand cellular biology. Halorhodopsin and bacteriorhodopsin are used as tools to turn neurons off or on rapidly and safely.
• Genome-wide association studies (GWAS) have revolutionized the field of molecular neurogenetics and are enabling clinicians to detect risk genes by comparing the DNA samples of thousands of psychiatric patients with thousands of healthy controls. This is how several hundred risk genes have been identified for schizophrenia, bipolar disorder, autism spectrum disorder, and more to come.
• Clustered regularly interspaced short palindromic repeats (CRISPR) is a remarkable genetic “scissors” (that earned its inventors the 2020 Nobel Prize) that allows splicing out a disease gene and splicing in a normal gene. This will have an enormous future application in preventing an adulthood illness at its roots during fetal life. The future medical implications for psychiatric disorders are prodigious!

Continue to: Clinical advances

Clinical advances. Many therapies or approaches that did not exist during my residency (and how I dreamed about them back then!) are available to today’s clinicians. These include:

• Rapid-acting antidepressants that reverse severe and chronic depression and suicidal urges within a few hours or a couple of days. As a resident, I waited for weeks or months to see patients with depression reach the full remission that is now achieved practically the same day with IV ketamine, intranasal esketamine, IV scopolamine, and inhalable nitrous oxide. During my residency, the closest thing we had to a rapid-acting treatment for depression was electroconvulsive therapy (ECT), but that usually took 2 to 3 weeks. Psychiatric clinicians should never cease to appreciate how an intractable, treatment-refractory depression can rapidly be turned off like a light switch, restoring normal mood to desperately ill persons.
• Neuromodulation techniques are flourishing. Beyond ECT, transcranial magnetic stimulation (TMS), vagus nerve stimulation (VNS), transcranial direct current stimulation (tDCS), deep brain stimulation (DBS), low field magnetic stimulation (LFMS), magnetic seizure therapy (MST), near-infrared radiation (NIR), and focused ultrasound (FUS) are approved or under development, offering millions of patients with various neuropsychiatric disorders potential recovery not with pharmacotherapy, but via a brain-targeted approach.
• Telepsychiatry. Now taken for granted during the COVID-19 pandemic, telepsychiatry was completely unimaginable during my residency. Yes, we had phones, but not smartphones! The only “zoom” we knew was the furious sound of a sports car engine! To be able to see and evaluate a patient literally anywhere in the world was science fiction personified! Increased remote access to psychiatric care by patients everywhere is a truly remarkable advance that helped avoid a disastrous lack of psychiatric treatment during the current pandemic that brought in-person interactions between psychiatric physicians and their patients to a screeching halt.
• Neurobiologic effects of psychotherapy. Viewing psychotherapy as a neurobiologic treatment was totally unknown and unimaginable during my residency. I was heavily trained in various types of psychotherapies, but not once did any of my supervisors mention experiential neuroplasticity as a brain-altering process, or that psychotherapy changes brain structure, induces experimental neuroplasticity, and induces billions of dendritic spines in patients’ cortex and limbic structures, helping them connect the dots and develop new insights. No one knew that psychotherapy can mimic the neural effects of pharmacotherapy.
• Immunomodulatory effects of psychotherapy. It was completely unknown that psychotherapies such as cognitive-behavioral therapy can lower levels of inflammatory biomarkers in patients’ CSF and serum. Back then, no one imagined that psychotherapy had immunomodulatory effects. These discoveries are revolutionary for us psychiatrists and confirm the neurobiologic mechanisms of psychotherapy for every patient we treat.
• Epigenetics. This was rarely, if ever, mentioned when I was a resident. We knew from clinical studies that children who were abused or neglected often develop severe mood or psychotic disorders in adulthood. But we did not know that trauma modifies some genes via under- or overexpression, and that such epigenetic changes alter brain development towards psychopathology. The mysteries of psychiatric brain disorders generated by childhood trauma have been clarified by advances in epigenetics.

Aspirational, futuristic therapies. Even now, as a seasoned psychiatric neuroscientist, I continue to dream. Research is providing many clues for potentially radical psychiatric treatments that go beyond standard antipsychotics, antidepressants, mood stabilizers, or anxiolytics. But today, I fully expect that scientific dreams eventually come true through research. For example, the following neuroscientific therapeutics strategies may someday become routine in clinical practice:

• microglia inhibition
• mitochondria repair
• anti-apoptotic therapy
• white matter connectivity restoration
• neuroprotection (enhancing neurogenesis, increasing neurotropic factors, and enhancing synaptogenesis)
• reverse glutamate N-methyl-d-aspartate hypofunction
• prevent amyloid formation.

Data analysis breakthroughs. Side-by-side with the explosion of new findings and amassing mountains of data in psychiatric neuroscience, unprecedented and revolutionary data-management techniques have emerged to facilitate the herculean task of data analysis to extract the mythical needle in a haystack and derive the overall impact of masses of data. These techniques, whose names were not in our vocabulary during my residency days, include:

• machine learning
• artificial intelligence
• deep learning
• big data.

With the help of powerful computers and ingenious software, discovering critical nuggets of knowledge about the brain and predicting the best approaches to healing dysfunctional brains are now possible. Those powerful methods of analyzing massive data are the vehicles for transforming science fiction to reality by assembling the jigsaw puzzle(s) of the human brain, arguably the last frontier in medical science.

My life experiences as a psychiatric neuroscientist have convinced me that nothing is beyond the reach of scientific research. Unraveling the divine brain’s complexities will eventually become reality. So, let us never stop dreaming and fantasizing!

During my residency training years, I had many rosy and bold dreams about the future of psychiatry, hoping for many breakthroughs.

Early on, I decided to pursue an academic career, and specifically to focus on the neurobiology of schizophrenia, bipolar disorder, and other psychoses. I secured a neuroscience mentor, conducted a research project, and presented my findings at the American Psychiatric Association Annual Meeting. Although at the time everyone used the term “functional” to describe mental illnesses, I was convinced that they were all neurologic conditions, with prominent psychiatric manifestations. And I have been proven right.

After my residency, I eagerly pursued a neuroscience fellowship at the National Institutes of Health. My fantasy was that during my career as a psychiatric neuroscientist, brain exploration would uncover the many mysteries of psychiatric disorders. I was insightful enough to recognize that what I envisioned for the future of psychiatry qualified as science fiction, but I never stopped dreaming.

Today, the advances in psychiatric neuroscience that were unimaginable during my residency have become dazzling discoveries. My journey as a psychiatric neuroscientist has been more thrilling than I ever imagined. I recall doing postmortem research on the brains of hundreds of deceased psychiatric patients, noticing sulci widening and ventricular dilatation, and wondering whether one day we would be able to detect those atrophic changes while the patients were alive. Although I measured those changes in postmortem brains, I was cognizant that due to preservation artifacts, such measurements were less reliable than measurements of living brains.

And then the advent of neuroimaging fulfilled my fantasies. This began towards the end of my fellowship, and has exploded with neurobiologic findings throughout my academic career. Then came dramatic methodologies to probe brain molecular and cellular pathologies, followed by breakthrough clinical advances. Entirely new vistas of research into psychiatric brain disorders are opening every day. The exhilaration will never end!

From science fiction to clinical reality

Here is a quick outline of some of the “science fiction” of psychiatry that has come true since my training days. Back then, these discoveries were completely absent from the radar screen of psychiatry, when it was still a fledgling medical specialty struggling to emerge from the dominant yet nonempirical era of psychoanalysis.

Brain exploration methods. Unpre­cedented breakthroughs in computer technology have allowed psychiatric neuroscientists to create a new field of neuroimaging research that includes:

• cerebral blood flow (CBF)
• position emission tomography (PET)
• single photon emission computed tomography (SPECT).

Continue to: These functional neuroimaging...

These functional neuroimaging methods (using ionizing radiation) have enabled clinicians to see abnormal blood flow patterns in the brains of living patients. One of the earliest findings was hypofrontality in patients with schizophrenia, implicating frontal pathology in this severe brain disorder. PET was also used for dopamine and serotonin receptor imaging.

Computerized axia tomography. Compared with skull X-rays, CT (“CAT”) scans provided a more detailed view of brain tissue, and began a structural neuroimaging revolution that enriched psychiatric research, but also was applied to organs other than the brain.

Magnetic resonance imaging (MRI) became the “big kahuna” of neuroimaging when arrived in the early 1980s and quickly supplanted CT research because it is safer (no ionizing radiation, and it can be repeated multiple times with or without tasks). It also provided exquisite neuroanatomical details of brain tissue with stunning fidelity. Subsequently, several MRI techniques/software programs were developed that advanced research in psychiatry to multiple new frontiers, including:

• Morphological neuroimaging with MRI
• Magnetic resonance spectroscopy (MRS), which acts like a living, noninvasive biopsy of several chemicals (such as choline, lactate, glutamine, adenosine triphosphate, and the neuronal marker N-acetylcysteine) in a small volume (≤1 cc) of neural tissue in various regions
• Functional MRI (fMRI), which measures blood flow changes during actual or imagined tasks in the brains of patients vs healthy controls
• Diffusion tensor imaging (DTI), which evaluates the integrity of white matter (60% of brain volume, including 137,000 miles of myelinated fibers) by measuring the flow of water inside myelinated fibers (anisotropy and diffusivity). DTI of the corpus callosum, the largest brain commissure that is comprised of 200 million interhemispheric fibers, has revealed many abnormalities. This was one of the structures I investigated during my fellowship, including a histopathological study.¹

All 4 of these neuroimaging techniques continue to generate a wealth of data about brain structure and function in psychosis, mood disorders, anxiety disorders, borderline personality disorder, obsessive-compulsive disorder, eating disorders, and substance use disorders. All these discoveries were utterly impossible to predict during my residency. I am proud to have published the first reports in the literature of ventricular enlargement in patients with bipolar disorder,² cortical atrophy in schizophrenia and mania,³ reductions of hippocampal volume in patients with schizophrenia using MRS,⁴ and progressive brain atrophy in patients with schizophrenia.⁵ It is especially gratifying that I played a small role in translating my science fiction fantasies into clinical reality!

Other breakthrough methodologies that are advancing psychiatric neuroscience today but were science fiction during my residency days include:

• Pluripotent stem cells, which enable the de-differentiation of adult skin cells and then re-differentiating them into any type of cell, including neurons. This allows researchers to conduct studies on any patient’s brain cells without needing to do an invasive, high-risk brain biopsy. As a young resident, I would never have predicted that this virtual brain biopsy would be possible!
• Optogenetics, which enables controlling cell behavior using light and genetically encoded light-sensitive proteins. This triggered a cornucopia of neuroscience discoveries by using optogenetics to modulate cell-signaling cascades to understand cellular biology. Halorhodopsin and bacteriorhodopsin are used as tools to turn neurons off or on rapidly and safely.
• Genome-wide association studies (GWAS) have revolutionized the field of molecular neurogenetics and are enabling clinicians to detect risk genes by comparing the DNA samples of thousands of psychiatric patients with thousands of healthy controls. This is how several hundred risk genes have been identified for schizophrenia, bipolar disorder, autism spectrum disorder, and more to come.
• Clustered regularly interspaced short palindromic repeats (CRISPR) is a remarkable genetic “scissors” (that earned its inventors the 2020 Nobel Prize) that allows splicing out a disease gene and splicing in a normal gene. This will have an enormous future application in preventing an adulthood illness at its roots during fetal life. The future medical implications for psychiatric disorders are prodigious!

Continue to: Clinical advances

Clinical advances. Many therapies or approaches that did not exist during my residency (and how I dreamed about them back then!) are available to today’s clinicians. These include:

• Rapid-acting antidepressants that reverse severe and chronic depression and suicidal urges within a few hours or a couple of days. As a resident, I waited for weeks or months to see patients with depression reach the full remission that is now achieved practically the same day with IV ketamine, intranasal esketamine, IV scopolamine, and inhalable nitrous oxide. During my residency, the closest thing we had to a rapid-acting treatment for depression was electroconvulsive therapy (ECT), but that usually took 2 to 3 weeks. Psychiatric clinicians should never cease to appreciate how an intractable, treatment-refractory depression can rapidly be turned off like a light switch, restoring normal mood to desperately ill persons.
• Neuromodulation techniques are flourishing. Beyond ECT, transcranial magnetic stimulation (TMS), vagus nerve stimulation (VNS), transcranial direct current stimulation (tDCS), deep brain stimulation (DBS), low field magnetic stimulation (LFMS), magnetic seizure therapy (MST), near-infrared radiation (NIR), and focused ultrasound (FUS) are approved or under development, offering millions of patients with various neuropsychiatric disorders potential recovery not with pharmacotherapy, but via a brain-targeted approach.
• Telepsychiatry. Now taken for granted during the COVID-19 pandemic, telepsychiatry was completely unimaginable during my residency. Yes, we had phones, but not smartphones! The only “zoom” we knew was the furious sound of a sports car engine! To be able to see and evaluate a patient literally anywhere in the world was science fiction personified! Increased remote access to psychiatric care by patients everywhere is a truly remarkable advance that helped avoid a disastrous lack of psychiatric treatment during the current pandemic that brought in-person interactions between psychiatric physicians and their patients to a screeching halt.
• Neurobiologic effects of psychotherapy. Viewing psychotherapy as a neurobiologic treatment was totally unknown and unimaginable during my residency. I was heavily trained in various types of psychotherapies, but not once did any of my supervisors mention experiential neuroplasticity as a brain-altering process, or that psychotherapy changes brain structure, induces experimental neuroplasticity, and induces billions of dendritic spines in patients’ cortex and limbic structures, helping them connect the dots and develop new insights. No one knew that psychotherapy can mimic the neural effects of pharmacotherapy.
• Immunomodulatory effects of psychotherapy. It was completely unknown that psychotherapies such as cognitive-behavioral therapy can lower levels of inflammatory biomarkers in patients’ CSF and serum. Back then, no one imagined that psychotherapy had immunomodulatory effects. These discoveries are revolutionary for us psychiatrists and confirm the neurobiologic mechanisms of psychotherapy for every patient we treat.
• Epigenetics. This was rarely, if ever, mentioned when I was a resident. We knew from clinical studies that children who were abused or neglected often develop severe mood or psychotic disorders in adulthood. But we did not know that trauma modifies some genes via under- or overexpression, and that such epigenetic changes alter brain development towards psychopathology. The mysteries of psychiatric brain disorders generated by childhood trauma have been clarified by advances in epigenetics.

Aspirational, futuristic therapies. Even now, as a seasoned psychiatric neuroscientist, I continue to dream. Research is providing many clues for potentially radical psychiatric treatments that go beyond standard antipsychotics, antidepressants, mood stabilizers, or anxiolytics. But today, I fully expect that scientific dreams eventually come true through research. For example, the following neuroscientific therapeutics strategies may someday become routine in clinical practice:

• microglia inhibition
• mitochondria repair
• anti-apoptotic therapy
• white matter connectivity restoration
• neuroprotection (enhancing neurogenesis, increasing neurotropic factors, and enhancing synaptogenesis)
• reverse glutamate N-methyl-d-aspartate hypofunction
• prevent amyloid formation.

Data analysis breakthroughs. Side-by-side with the explosion of new findings and amassing mountains of data in psychiatric neuroscience, unprecedented and revolutionary data-management techniques have emerged to facilitate the herculean task of data analysis to extract the mythical needle in a haystack and derive the overall impact of masses of data. These techniques, whose names were not in our vocabulary during my residency days, include:

• machine learning
• artificial intelligence
• deep learning
• big data.

With the help of powerful computers and ingenious software, discovering critical nuggets of knowledge about the brain and predicting the best approaches to healing dysfunctional brains are now possible. Those powerful methods of analyzing massive data are the vehicles for transforming science fiction to reality by assembling the jigsaw puzzle(s) of the human brain, arguably the last frontier in medical science.

My life experiences as a psychiatric neuroscientist have convinced me that nothing is beyond the reach of scientific research. Unraveling the divine brain’s complexities will eventually become reality. So, let us never stop dreaming and fantasizing!

About half of 148 patients hospitalized with COVID-19 infection and elevated troponin levels had at least some evidence of myocardial injury on cardiac magnetic resonance (CMR) imaging 2 months later, a new study shows.

“Our results demonstrate that in this subset of patients surviving severe COVID-19 and with troponin elevation, ongoing localized myocardial inflammation, whilst less frequent than previously reported, remains present in a proportion of patients and may represent an emerging issue of clinical relevance,” wrote Marianna Fontana, MD, PhD, of University College London, and colleagues.

The cardiac abnormalities identified were classified as nonischemic (including “myocarditis-like” late gadolinium enhancement [LGE]) in 26% of the cohort; as related to ischemic heart disease (infarction or inducible ischemia) in 22%; and as dual pathology in 6%.

Left ventricular (LV) function was normal in 89% of the 148 patients. In the 17 patients (11%) with LV dysfunction, only four had an ejection fraction below 35%. Of the nine patients whose LV dysfunction was related to myocardial infarction, six had a known history of ischemic heart disease.

European Heart Journal

Glass half full

Taking a “glass half full” approach, co–senior author Graham D. Cole, MD, PhD, noted on Twitter that nearly half the patients had no major cardiac abnormalities on CMR just 2 months after a bout with troponin-positive COVID-19.

“We think this is important: Even in a group who had been very sick with raised troponin, it was common to find no evidence of heart damage,” said Dr. Cole, of the Royal Free London NHS Foundation Trust.

“We believe our data challenge the hypothesis that chronic inflammation, diffuse fibrosis, or long-term LV dysfunction is a dominant feature in those surviving COVID-19,” the investigators concluded in their report.

In an interview, Dr. Fontana explained further: “It has been reported in an early ‘pathfinder’ study that two-thirds of patients recovered from COVID-19 had CMR evidence of abnormal findings with a high incidence of elevated T1 and T2 in keeping with diffuse fibrosis and edema. Our findings with a larger, multicenter study and better controls show low rates of heart impairment and much less ongoing inflammation, which is reassuring.”

She also noted that the different patterns of injury suggest that different mechanisms are at play, including the possibility that “at least some of the found damage might have been preexisting, because people with heart damage are more likely to get severe disease.”

The investigators, including first author Tushar Kotecha, MBChB, PhD, of the Royal Free London NHS Foundation Trust, also noted that myocarditis-like injury was limited to three or fewer myocardial segments in 88% of cases with no associated ventricular dysfunction, and that biventricular function was no different than in those without myocarditis.

“We use the word ‘myocarditis-like’ but we don’t have histology,” Dr. Fontana said. “Our group actually suspects a lot of this will be microvascular clotting (microangiopathic thrombosis). This is exciting, as newer anticoagulation strategies – for example, those being tried in RECOVERY – may have benefit.”

Aloke V. Finn, MD, of the CVPath Institute in Gaithersburg, Md., wishes researchers would stop using the term myocarditis altogether to describe clinical or imaging findings in COVID-19.

“MRI can’t diagnose myocarditis. It is a specific diagnosis that requires, ideally, histology, as the investigators acknowledged,” Dr. Finn said in an interview.

His group at CVPath recently published data showing pathologic evidence of myocarditis after SARS-CoV-2 infection, as reported by theheart.org | Medscape Cardiology.

“As a clinician, when I think of myocarditis, I look at the echo and an LV gram, and I see if there is a wall motion abnormality and troponin elevation, but with normal coronary arteries. And if all that is there, then I think about myocarditis in my differential diagnosis,” he said. “But in most of these cases, as the authors rightly point out, most patients did not have what is necessary to really entertain a diagnosis of myocarditis.”

He agreed with Dr. Fontana’s suggestion that what the CMR might be picking up in these survivors is microthrombi, as his group saw in their recent autopsy study.

“It’s very possible these findings are concordant with the recent autopsy studies done by my group and others in terms of detecting the presence of microthrombi, but we don’t know this for certain because no one has ever studied this entity before in the clinic and we don’t really know how microthrombi might appear on CMR.”
 

Largest study to date

The 148 participants (mean age, 64 years; 70% male) in the largest study to date to investigate convalescing COVID-19 patients who had elevated troponins – something identified early in the pandemic as a risk factor for worse outcomes in COVID-19 – were treated at one of six hospitals in London.

Patients who had abnormal troponin levels were offered an MRI scan of the heart after discharge and were compared with those from a control group of patients who had not had COVID-19 and with 40 healthy volunteers.

Median length of stay was 9 days, and 32% of patients required ventilatory support in the intensive care unit.

Just over half the patients (57%) had hypertension, 7% had had a previous myocardial infarction, 34% had diabetes, 46% had hypercholesterolemia, and 24% were smokers. Mean body mass index was 28.5 kg/m².

CMR follow-up was conducted a median of 68 days after confirmation of a COVID-19 diagnosis.

On Twitter, Dr. Cole noted that the findings are subject to both survivor bias and referral bias. “We didn’t scan frail patients where the clinician felt [CMR] was unlikely to inform management.”

The findings, said Dr. Fontana, “say nothing about what happens to people who are not hospitalized with COVID, or those who are hospitalized but without elevated troponin.”

What they do offer, particularly if replicated, is a way forward in identifying patients at higher or lower risk for long-term sequelae and inform strategies that could improve outcomes, she added.

A version of this article first appeared on Medscape.com.

About half of 148 patients hospitalized with COVID-19 infection and elevated troponin levels had at least some evidence of myocardial injury on cardiac magnetic resonance (CMR) imaging 2 months later, a new study shows.

“Our results demonstrate that in this subset of patients surviving severe COVID-19 and with troponin elevation, ongoing localized myocardial inflammation, whilst less frequent than previously reported, remains present in a proportion of patients and may represent an emerging issue of clinical relevance,” wrote Marianna Fontana, MD, PhD, of University College London, and colleagues.

The cardiac abnormalities identified were classified as nonischemic (including “myocarditis-like” late gadolinium enhancement [LGE]) in 26% of the cohort; as related to ischemic heart disease (infarction or inducible ischemia) in 22%; and as dual pathology in 6%.

Left ventricular (LV) function was normal in 89% of the 148 patients. In the 17 patients (11%) with LV dysfunction, only four had an ejection fraction below 35%. Of the nine patients whose LV dysfunction was related to myocardial infarction, six had a known history of ischemic heart disease.

European Heart Journal

Glass half full

Taking a “glass half full” approach, co–senior author Graham D. Cole, MD, PhD, noted on Twitter that nearly half the patients had no major cardiac abnormalities on CMR just 2 months after a bout with troponin-positive COVID-19.

“We think this is important: Even in a group who had been very sick with raised troponin, it was common to find no evidence of heart damage,” said Dr. Cole, of the Royal Free London NHS Foundation Trust.

“We believe our data challenge the hypothesis that chronic inflammation, diffuse fibrosis, or long-term LV dysfunction is a dominant feature in those surviving COVID-19,” the investigators concluded in their report.

In an interview, Dr. Fontana explained further: “It has been reported in an early ‘pathfinder’ study that two-thirds of patients recovered from COVID-19 had CMR evidence of abnormal findings with a high incidence of elevated T1 and T2 in keeping with diffuse fibrosis and edema. Our findings with a larger, multicenter study and better controls show low rates of heart impairment and much less ongoing inflammation, which is reassuring.”

She also noted that the different patterns of injury suggest that different mechanisms are at play, including the possibility that “at least some of the found damage might have been preexisting, because people with heart damage are more likely to get severe disease.”

The investigators, including first author Tushar Kotecha, MBChB, PhD, of the Royal Free London NHS Foundation Trust, also noted that myocarditis-like injury was limited to three or fewer myocardial segments in 88% of cases with no associated ventricular dysfunction, and that biventricular function was no different than in those without myocarditis.

“We use the word ‘myocarditis-like’ but we don’t have histology,” Dr. Fontana said. “Our group actually suspects a lot of this will be microvascular clotting (microangiopathic thrombosis). This is exciting, as newer anticoagulation strategies – for example, those being tried in RECOVERY – may have benefit.”

Aloke V. Finn, MD, of the CVPath Institute in Gaithersburg, Md., wishes researchers would stop using the term myocarditis altogether to describe clinical or imaging findings in COVID-19.

“MRI can’t diagnose myocarditis. It is a specific diagnosis that requires, ideally, histology, as the investigators acknowledged,” Dr. Finn said in an interview.

His group at CVPath recently published data showing pathologic evidence of myocarditis after SARS-CoV-2 infection, as reported by theheart.org | Medscape Cardiology.

“As a clinician, when I think of myocarditis, I look at the echo and an LV gram, and I see if there is a wall motion abnormality and troponin elevation, but with normal coronary arteries. And if all that is there, then I think about myocarditis in my differential diagnosis,” he said. “But in most of these cases, as the authors rightly point out, most patients did not have what is necessary to really entertain a diagnosis of myocarditis.”

He agreed with Dr. Fontana’s suggestion that what the CMR might be picking up in these survivors is microthrombi, as his group saw in their recent autopsy study.

“It’s very possible these findings are concordant with the recent autopsy studies done by my group and others in terms of detecting the presence of microthrombi, but we don’t know this for certain because no one has ever studied this entity before in the clinic and we don’t really know how microthrombi might appear on CMR.”
 

Largest study to date

The 148 participants (mean age, 64 years; 70% male) in the largest study to date to investigate convalescing COVID-19 patients who had elevated troponins – something identified early in the pandemic as a risk factor for worse outcomes in COVID-19 – were treated at one of six hospitals in London.

Patients who had abnormal troponin levels were offered an MRI scan of the heart after discharge and were compared with those from a control group of patients who had not had COVID-19 and with 40 healthy volunteers.

Median length of stay was 9 days, and 32% of patients required ventilatory support in the intensive care unit.

Just over half the patients (57%) had hypertension, 7% had had a previous myocardial infarction, 34% had diabetes, 46% had hypercholesterolemia, and 24% were smokers. Mean body mass index was 28.5 kg/m².

CMR follow-up was conducted a median of 68 days after confirmation of a COVID-19 diagnosis.

On Twitter, Dr. Cole noted that the findings are subject to both survivor bias and referral bias. “We didn’t scan frail patients where the clinician felt [CMR] was unlikely to inform management.”

The findings, said Dr. Fontana, “say nothing about what happens to people who are not hospitalized with COVID, or those who are hospitalized but without elevated troponin.”

What they do offer, particularly if replicated, is a way forward in identifying patients at higher or lower risk for long-term sequelae and inform strategies that could improve outcomes, she added.

A version of this article first appeared on Medscape.com.

About half of 148 patients hospitalized with COVID-19 infection and elevated troponin levels had at least some evidence of myocardial injury on cardiac magnetic resonance (CMR) imaging 2 months later, a new study shows.

“Our results demonstrate that in this subset of patients surviving severe COVID-19 and with troponin elevation, ongoing localized myocardial inflammation, whilst less frequent than previously reported, remains present in a proportion of patients and may represent an emerging issue of clinical relevance,” wrote Marianna Fontana, MD, PhD, of University College London, and colleagues.

The cardiac abnormalities identified were classified as nonischemic (including “myocarditis-like” late gadolinium enhancement [LGE]) in 26% of the cohort; as related to ischemic heart disease (infarction or inducible ischemia) in 22%; and as dual pathology in 6%.

Left ventricular (LV) function was normal in 89% of the 148 patients. In the 17 patients (11%) with LV dysfunction, only four had an ejection fraction below 35%. Of the nine patients whose LV dysfunction was related to myocardial infarction, six had a known history of ischemic heart disease.

European Heart Journal

Glass half full

Taking a “glass half full” approach, co–senior author Graham D. Cole, MD, PhD, noted on Twitter that nearly half the patients had no major cardiac abnormalities on CMR just 2 months after a bout with troponin-positive COVID-19.

“We think this is important: Even in a group who had been very sick with raised troponin, it was common to find no evidence of heart damage,” said Dr. Cole, of the Royal Free London NHS Foundation Trust.

“We believe our data challenge the hypothesis that chronic inflammation, diffuse fibrosis, or long-term LV dysfunction is a dominant feature in those surviving COVID-19,” the investigators concluded in their report.

In an interview, Dr. Fontana explained further: “It has been reported in an early ‘pathfinder’ study that two-thirds of patients recovered from COVID-19 had CMR evidence of abnormal findings with a high incidence of elevated T1 and T2 in keeping with diffuse fibrosis and edema. Our findings with a larger, multicenter study and better controls show low rates of heart impairment and much less ongoing inflammation, which is reassuring.”

She also noted that the different patterns of injury suggest that different mechanisms are at play, including the possibility that “at least some of the found damage might have been preexisting, because people with heart damage are more likely to get severe disease.”

The investigators, including first author Tushar Kotecha, MBChB, PhD, of the Royal Free London NHS Foundation Trust, also noted that myocarditis-like injury was limited to three or fewer myocardial segments in 88% of cases with no associated ventricular dysfunction, and that biventricular function was no different than in those without myocarditis.

“We use the word ‘myocarditis-like’ but we don’t have histology,” Dr. Fontana said. “Our group actually suspects a lot of this will be microvascular clotting (microangiopathic thrombosis). This is exciting, as newer anticoagulation strategies – for example, those being tried in RECOVERY – may have benefit.”

Aloke V. Finn, MD, of the CVPath Institute in Gaithersburg, Md., wishes researchers would stop using the term myocarditis altogether to describe clinical or imaging findings in COVID-19.

“MRI can’t diagnose myocarditis. It is a specific diagnosis that requires, ideally, histology, as the investigators acknowledged,” Dr. Finn said in an interview.

His group at CVPath recently published data showing pathologic evidence of myocarditis after SARS-CoV-2 infection, as reported by theheart.org | Medscape Cardiology.

“As a clinician, when I think of myocarditis, I look at the echo and an LV gram, and I see if there is a wall motion abnormality and troponin elevation, but with normal coronary arteries. And if all that is there, then I think about myocarditis in my differential diagnosis,” he said. “But in most of these cases, as the authors rightly point out, most patients did not have what is necessary to really entertain a diagnosis of myocarditis.”

He agreed with Dr. Fontana’s suggestion that what the CMR might be picking up in these survivors is microthrombi, as his group saw in their recent autopsy study.

“It’s very possible these findings are concordant with the recent autopsy studies done by my group and others in terms of detecting the presence of microthrombi, but we don’t know this for certain because no one has ever studied this entity before in the clinic and we don’t really know how microthrombi might appear on CMR.”
 

Largest study to date

The 148 participants (mean age, 64 years; 70% male) in the largest study to date to investigate convalescing COVID-19 patients who had elevated troponins – something identified early in the pandemic as a risk factor for worse outcomes in COVID-19 – were treated at one of six hospitals in London.

Patients who had abnormal troponin levels were offered an MRI scan of the heart after discharge and were compared with those from a control group of patients who had not had COVID-19 and with 40 healthy volunteers.

Median length of stay was 9 days, and 32% of patients required ventilatory support in the intensive care unit.

Just over half the patients (57%) had hypertension, 7% had had a previous myocardial infarction, 34% had diabetes, 46% had hypercholesterolemia, and 24% were smokers. Mean body mass index was 28.5 kg/m².

CMR follow-up was conducted a median of 68 days after confirmation of a COVID-19 diagnosis.

On Twitter, Dr. Cole noted that the findings are subject to both survivor bias and referral bias. “We didn’t scan frail patients where the clinician felt [CMR] was unlikely to inform management.”

The findings, said Dr. Fontana, “say nothing about what happens to people who are not hospitalized with COVID, or those who are hospitalized but without elevated troponin.”

What they do offer, particularly if replicated, is a way forward in identifying patients at higher or lower risk for long-term sequelae and inform strategies that could improve outcomes, she added.

A version of this article first appeared on Medscape.com.

From Dignity Health Methodist Hospital of Sacramento Family Medicine Residency Program, Sacramento, CA (Dr. Oldach); Nationwide Children’s Hospital, Columbus, OH (Dr. Irwin); OhioHealth Research Institute, Columbus, OH (Dr. Pershing); Department of Clinical Transformation, OhioHealth, Columbus, OH (Dr. Zigmont and Dr. Gascon); and Department of Geriatrics, OhioHealth, Columbus, OH (Dr. Skully).

Abstract

Objective: An interdisciplinary committee was formed to identify factors contributing to surgical delays in urgent hip fracture repair at an urban, level 1 trauma center, with the goal of reducing preoperative time to less than 24 hours. Surgical optimization was identified as a primary, modifiable factor, as surgeons were reluctant to clear patients for surgery without cardiac consultation. Preoperative transthoracic echocardiogram (TTE) was recommended as a safe alternative to cardiac consultation in most patients.

Methods: A retrospective review was conducted for patients who underwent urgent hip fracture repair between January 2010 and April 2014 (n = 316). Time to medical optimization, time to surgery, hospital length of stay, and anesthesia induction were compared for 3 patient groups of interest: those who received (1) neither TTE nor cardiology consultation (ie, direct to surgery); (2) a preoperative TTE; or (3) preoperative cardiac consultation.

Results: There were significant between-group differences in medical optimization time (P = 0.001) and mean time to surgery (P < 0.001) when comparing the 3 groups of interest. Patients in the preoperative cardiac consult group had the longest times, followed by the TTE and direct-to-surgery groups. There were no differences in the type of induction agent used across treatment groups when stratifying by ejection fraction.

Conclusion: Preoperative TTE allows for decreased preoperative time compared to a cardiology consultation. It provides an easily implemented inter-departmental, intra-institutional intervention to decrease preoperative time in patients presenting with hip fractures.

Keywords: surgical delay; preoperative risk stratification; process improvement.

Hip fractures are common, expensive, and associated with poor outcomes.^1,2 Ample literature suggests that morbidity, mortality, and cost of care may be reduced by minimizing surgical delays.^3-5 While individual reports indicate mixed evidence, in a 2010 meta-analysis, surgery within 72 hours was associated with significant reductions in pneumonia and pressure sores, as well as a 19% reduction in all-cause mortality through 1 year.⁶ Additional reviews suggest evidence of improved patient outcomes (pain, length of stay, non-union, and/or mortality) when surgery occurs early, within 12 to 72 hours after injury.^4,6,7 Regardless of the definition of “early surgery” used, surgical delay remains a challenge, often due to organizational factors, including admission day of the week and hospital staffing, and patient characteristics, such as comorbidities, echocardiographic findings, age, and insurance status.^7-9

Among factors that contribute to surgical delays, the need for preoperative cardiovascular risk stratification is significantly modifiable.¹⁰ The American College of Cardiology (ACC)/American Heart Association (AHA) Task Force risk stratification framework for preoperative cardiac testing assists clinicians in determining surgical urgency, active cardiac conditions, cardiovascular risk factors, and functional capacity of each patient, and is well established for low- or intermediate-risk patients.¹¹ Specifically, metabolic equivalents (METs) measurements are used to identify medically stable patients with good or excellent functional capacity versus poor or unknown functional status. Patients with ≥ 4 METs may proceed to surgery without further testing; patients with < 4 METs may either proceed with planned surgery or undergo additional testing. Patients with a perceived increased risk profile who require urgent or semi-urgent hip fracture repair may be confounded by disagreement about required preoperative cardiac testing.

At OhioHealth Grant Medical Center (GMC), an urban, level 1 trauma center, the consideration of further preoperative noninvasive testing frequently contributed to surgical delays. In 2009, hip fracture patients arriving to the emergency department (ED) waited an average of 51 hours before being transferred to the operating room (OR) for surgery. Presuming prompt surgery is both desirable and feasible, the Grant Hip Fracture Management Committee (GHFMC) was developed in order to expedite surgeries in hip fracture patients. The GHFMC recommended a preoperative hip fracture protocol, and the outcomes from protocol implementation are described in this article.

Methods

This study was approved by the OhioHealth Institutional Review Board, with a waiver of the informed consent requirement. Medical records from patients treated at GMC during the time period between January 2010 and April 2014 (ie, following implementation of GHFMC recommendations) were retrospectively reviewed to identify the extent to which the use of preoperative transthoracic echocardiography (TTE) reduced average time to surgery and total length of stay, compared to cardiac consultation. This chart review included 316 participants and was used to identify primary induction agent utilized, time to medical optimization, time to surgery, and total length of hospital stay.

Intervention

The GHFMC conducted a 9-month quality improvement project to decrease ED-to-OR time to less than 24 hours for hip fracture patients. The multidisciplinary committee consisted of physicians from orthopedic surgery, anesthesia, hospital medicine, and geriatrics, along with key administrators and nurse outcomes managers. While there is lack of complete clarity surrounding optimal surgical timing, the committee decided that surgery within 24 hours would be beneficial for the majority of patients and therefore was considered a prudent goal.

Based on identified barriers that contributed to surgical delays, several process improvement strategies were implemented, including admitting patients to the hospitalist service, engaging the orthopedic trauma team, and implementing pre- and postoperative protocols and order sets (eg, ED and pain management order sets). Specific emphasis was placed on establishing guidelines for determining medical optimization. In the absence of established guidelines, medical optimization was determined at the discretion of the attending physician. The necessity of preoperative cardiac assessment was based, in part, on physician concerns about determining safe anesthesia protocols and hemodynamically managing patients who may have occult heart disease, specifically those patients with low functional capacity (< 4 METs) and/or inability to accurately communicate their medical history.

Many hip fractures result from a fall, and it may be unclear whether the fall causing a fracture was purely mechanical or indicative of a distinct acute or chronic illness. As a result, many patients received cardiac consultations, with or without pharmacologic stress testing, adding another 24 to 36 hours to preoperative time. As invasive preoperative cardiac procedures generally result in surgical delays without improving outcomes,¹¹ the committee recommended that clinicians reserve preoperative cardiac consultation for patients with active cardiac conditions.

In lieu of cardiac consultation, the committee suggested preoperative TTE. While use of TTE has not been shown to improve preoperative risk stratification in routine noncardiac surgeries, it has been shown to provide clinically useful information in patients at high risk for cardiac complications.¹¹ There was consensus for incorporating preoperative TTE for several reasons: (1) the patients with hip fractures were not “routine,” and often did not have a reliable medical history; (2) a large percentage of patients had cardiac risk factors; (3) patients with undiagnosed aortic stenosis, severe left ventricular dysfunction, or severe pulmonary hypertension would likely have altered intraoperative fluid management; and (4) in supplanting cardiac consultations, TTE would likely expedite patients’ ED-to-OR times. Therefore, the GHFMC created a recommendation of ordering urgent TTE for patients who were unable to exercise at ≥ 4 METs but needed urgent hip fracture surgery.

In order to evaluate the success of the new protocol, the ED-to-OR times were calculated for a cohort of patients who underwent surgery for hip fracture following algorithm implementation.

Participants

A chart review was conducted for patients admitted to GMC between January 2010 and April 2014 for operative treatment of a hip fracture. Exclusion criteria included lack of radiologist-diagnosed hip fracture, periprosthetic hip fracture, or multiple traumas. Electronic patient charts were reviewed by investigators (KI and BO) using a standardized, electronic abstraction form for 3 groups of patients who (1) proceeded directly to planned surgery without TTE or cardiac consultation (direct-to-surgery group); (2) received preoperative TTE but not a cardiac consultation (TTE-only group); or (3) received preoperative cardiac consultation (cardiac consult group).

Measures

Demographics, comorbid conditions, MET score, anesthesia protocol, and in-hospital morbidity and mortality were extracted from medical charts. Medical optimization time was determined by the latest time stamp of 1 of the following: time that the final consulting specialist stated that the patient was stable for surgery; time that the hospitalist described the patient as being ready for surgery; time that the TTE report was certified by the reading cardiologist; or time that the hospitalist described the outcome of completed preoperative risk stratification. Time elapsed prior to medical optimization, surgery, and discharge were calculated using differences between the patient’s arrival date and time at the ED, first recorded time of medical optimization, surgical start time (from the surgical report), and discharge time, respectively.

To assess whether the TTE protocol may have affected anesthesia selection, the induction agent (etomidate or propofol) was abstracted from anesthesia reports and stratified by the ejection fraction of each patient: very low (≤ 35%), low (36%–50%), or normal (> 50%). Patients without an echocardiogram report were assumed to have a normal ejection fraction for this analysis.

Analysis

Descriptive statistics were produced using mean and standard deviation (SD) for continuous variables and frequency and percentage for categorical variables. To determine whether statistically significant differences existed between the 3 groups, the Kruskal-Wallis test was used to compare skewed continuous variables, and Pearson’s chi-square test was used to compare categorical variables. Due to differences in baseline patient characteristics across the 3 treatment groups, inverse probability weights were used to adjust for group differences (using a multinomial logit treatment model) while comparing differences in outcome variables. This modeling strategy does not rely on any assumptions for the distribution of the outcome variable. Covariates were considered for inclusion in the treatment or outcome model if they were significantly associated (P < 0.05) with the group variable. Additionally, anesthetic agent (etomidate or propofol) was compared across the treatment groups after stratifying by ejection fraction to identify whether any differences existed in anesthesia regimen. Patients who were prescribed more than 1 anesthetic agent (n = 2) or an agent that was not of interest were removed from the analysis (n = 13). Stata (version 14) was used for analysis. All other missing data with respect to the tested variables were omitted in the analysis for that variable. Any disagreements about abstraction were resolved through consensus between the investigators.

Results

A total of 316 cases met inclusion criteria, including 108 direct-to-surgery patients, 143 preoperative TTE patients, and 65 cardiac consult patients. Patient demographics and preoperative characteristics are shown in Table 1. The average age for all patients was 76.5 years of age (SD, 12.89; IQR, 34-97); however, direct-to-surgery patients were significantly (P < 0.001) younger (71.2 years; SD, 14.2; interquartile range [IQR], 34-95 years) than TTE-only patients (79.0 years; SD, 11.5; IQR, 35-97 years) and cardiac consult patients (79.57 years; SD, 10.63; IQR, 49-97 years). The majority of patients were female (69.9%) and experienced a fall prior to admission (94%). Almost three-fourths of patients had 1 or more cardiac risk factors (73.7%), including history of congestive heart failure (CHF; 19%), coronary artery disease (CAD; 26.3%), chronic obstructive pulmonary disease (COPD; 19.3%), or aortic stenosis (AS; 3.5%). Due to between-group differences in these comorbid conditions, confounding factors were adjusted for in subsequent analyses.

As shown in Table 2, before adjustment for confounding factors, there were significant between-group differences in medical optimization time for patients in all 3 groups. After adjustment for treatment differences using age and number of comorbid diseases, and medical optimization time differences using age and COPD, fewer between-group differences were statistically significant. Patients who received a cardiac consult had an 18.44-hour longer medical optimization time compared to patients who went directly to surgery (29.136 vs 10.696 hours; P = 0.001). Optimization remained approximately 5 hours longer for the TTE-only group than for the direct-to-surgery group; however, this difference was not significant (P = 0.075).

When comparing differences in ED-to-OR time for the 3 groups after adjusting the probability of treatment for age and the number of comorbid conditions, and adjusting the probability of ED-to-OR time for age, COPD, and CHF, significant differences remained in ED-to-OR times across all groups. Specifically, patients in the direct-to-surgery group experienced the shortest time (mean, 20.64 hours), compared to patients in the TTE-only group (mean, 26.32; P = 0.04) or patients in the cardiac consult group (mean, 36.08; P < 0.001). TTE-only patients had a longer time of 5.68 hours, compared to the direct-to-surgery group, and patients in the preoperative cardiac consult group were on average 15.44 hours longer than the direct-to-surgery group.

When comparing differences in the length of stay for the 3 groups before statistical adjustments, differences were observed; however, after removing the confounding factors related to treatment (age and CAD) and the outcome (age and the number of comorbid conditions), there were no statistically significant differences in the length of stay for the 3 groups. Average length of stay was 131 hours for direct-to-surgery patients, 142 hours for TTE-only patients, and 141 hours for cardiac consult patients.

The use of different anesthetic agents was compared for patients in the 3 groups. The majority of patients in the study (87.7%) were given propofol, and there were no differences after stratifying by ejection fraction (Table 3).

Discussion

The GHFMC was created to reduce surgical delays for hip fracture. Medical optimization was considered a primary, modifiable factor given that surgeons were reluctant to proceed without a cardiac consult. To address this gap, the committee recommended a preoperative TTE for patients with low or unknown functional status. This threshold provides a quick and easy method for stratifying patients who previously required risk stratification by a cardiologist, which often resulted in surgery delays.

In their recommendations for implementation of hip fracture quality improvement projects, the Geriatric Fracture Center emphasizes the importance of multidisciplinary physician leadership along with standardization of approach across patients.¹² This recommendation is supported by increasing evidence that orthogeriatric collaborations are associated with decreased mortality and length of stay.¹³ The GHFMC and subsequent interventions reflect this approach, allowing for collaboration to identify cross-disciplinary procedural barriers to care. In our institution, addressing identified procedural barriers to care was associated with a reduction in the average time to surgery from 51 hours to 25.3 hours.

Multiple approaches have been attempted to decrease presurgical time in hip fracture patients in various settings. Prehospital interventions, such as providing ambulances with checklists and ability to bypass the ED, have not been shown to decrease time to surgery for hip fracture patients, though similar strategies have been successful in other conditions, such as stroke.^14,15 In-hospital procedures, such as implementation of a hip fracture protocol and reduction of preoperative interventions, have more consistently been found to decrease time to surgery and in-hospital mortality.^16,17 However, reduced delays have not been found universally. Luttrell and Nana found that preoperative TTE resulted in approximately 30.8-hour delays from the ED to OR, compared to patients who did not receive a preoperative TTE.¹⁸ However, in that study hospitalists used TTE at their own discretion, and there may have been confounding factors contributing to delays. When used as part of a protocol targeting patients with poor or unknown functional capacity, we believe that preoperative TTE results in modest surgical delays yet provides clinically useful information about each patient.

ACC/AHA preoperative guidelines were updated after we implemented our intervention and now recommend that patients with poor or unknown functional capacity in whom stress testing will not influence care proceed to surgery “according to guideline-directed medical care.”¹¹ While routine use of preoperative evaluation of left ventricular function is not recommended, assessing left ventricular function may be reasonable for patients with heart failure with a change in clinical status. Guidelines also recommend that patients with clinically suspected valvular stenosis undergo preoperative echocardiography.¹¹

Limitations

This study has several limitations. First, due to resource limitations, a substantial period of time elapsed between implementation of the new protocol and the analysis of the data set. That is, the hip fracture protocol assessed in this paper occurred from January 2010 through April 2014, and final analysis of the data set occurred in April 2020. This limitation precludes our ability to formally assess any pre- or post-protocol changes in patient outcomes. Second, randomization was not used to create groups that were balanced in differing health characteristics (ie, patients with noncardiac-related surgeries, patients in different age groups); however, the use of inverse probability treatment regression analysis was a way to statistically address these between-group differences. Moreover, this study is limited by the factors that were measured; unmeasured factors cannot be accounted for. Third, health care providers working at the hospital during this time were aware of the goal to decrease presurgical time, possibly creating exaggerated effects compared to a blinded trial. Finally, although this intervention is likely translatable to other centers, these results represent the experiences of a single level 1 trauma center and may not be replicable elsewhere.

Conclusion

Preoperative TTE in lieu of cardiac consultation has several advantages. First, it requires interdepartmental collaboration for implementation, but can be implemented through a single hospital or hospital system. Unlike prehospital interventions, preoperative urgent TTE for patients with low functional capacity does not require the support of emergency medical technicians, ambulance services, or other hospitals in the region. Second, while costs are associated with TTE, they are offset by a reduction in expensive consultations with specialists, surgical delays, and longer lengths of stay. Third, despite likely increased ED-to-OR times compared to no intervention, urgent TTE decreases time to surgery compared with cardiology consultation. Prior to the GHFMC, the ED-to-OR time at our institution was 51 hours. In contrast, the mean time following the GHFMC-led protocol was less than half that, at 25.3 hours (SD, 19.1 hours). In fact, nearly two-thirds (65.2%) of the patients evaluated in this study underwent surgery within 24 hours of admission. This improvement in presurgical time was attributed, in part, to the implementation of preoperative TTE over cardiology consultations.

Acknowledgments: The authors thank Jenny Williams, RN, who was instrumental in obtaining the data set for analysis, and Shauna Ayres, MPH, from the OhioHealth Research Institute, who provided writing and technical assistance.

Corresponding author: Robert Skully, MD, OhioHealth Family Medicine Grant, 290 East Town St., Columbus, OH 43215; [email protected].

Funding: This work was supported by the OhioHealth Summer Research Externship Program.

Financial disclosures: None.

From Dignity Health Methodist Hospital of Sacramento Family Medicine Residency Program, Sacramento, CA (Dr. Oldach); Nationwide Children’s Hospital, Columbus, OH (Dr. Irwin); OhioHealth Research Institute, Columbus, OH (Dr. Pershing); Department of Clinical Transformation, OhioHealth, Columbus, OH (Dr. Zigmont and Dr. Gascon); and Department of Geriatrics, OhioHealth, Columbus, OH (Dr. Skully).

Abstract

Objective: An interdisciplinary committee was formed to identify factors contributing to surgical delays in urgent hip fracture repair at an urban, level 1 trauma center, with the goal of reducing preoperative time to less than 24 hours. Surgical optimization was identified as a primary, modifiable factor, as surgeons were reluctant to clear patients for surgery without cardiac consultation. Preoperative transthoracic echocardiogram (TTE) was recommended as a safe alternative to cardiac consultation in most patients.

Methods: A retrospective review was conducted for patients who underwent urgent hip fracture repair between January 2010 and April 2014 (n = 316). Time to medical optimization, time to surgery, hospital length of stay, and anesthesia induction were compared for 3 patient groups of interest: those who received (1) neither TTE nor cardiology consultation (ie, direct to surgery); (2) a preoperative TTE; or (3) preoperative cardiac consultation.

Results: There were significant between-group differences in medical optimization time (P = 0.001) and mean time to surgery (P < 0.001) when comparing the 3 groups of interest. Patients in the preoperative cardiac consult group had the longest times, followed by the TTE and direct-to-surgery groups. There were no differences in the type of induction agent used across treatment groups when stratifying by ejection fraction.

Conclusion: Preoperative TTE allows for decreased preoperative time compared to a cardiology consultation. It provides an easily implemented inter-departmental, intra-institutional intervention to decrease preoperative time in patients presenting with hip fractures.

Keywords: surgical delay; preoperative risk stratification; process improvement.

Hip fractures are common, expensive, and associated with poor outcomes.^1,2 Ample literature suggests that morbidity, mortality, and cost of care may be reduced by minimizing surgical delays.^3-5 While individual reports indicate mixed evidence, in a 2010 meta-analysis, surgery within 72 hours was associated with significant reductions in pneumonia and pressure sores, as well as a 19% reduction in all-cause mortality through 1 year.⁶ Additional reviews suggest evidence of improved patient outcomes (pain, length of stay, non-union, and/or mortality) when surgery occurs early, within 12 to 72 hours after injury.^4,6,7 Regardless of the definition of “early surgery” used, surgical delay remains a challenge, often due to organizational factors, including admission day of the week and hospital staffing, and patient characteristics, such as comorbidities, echocardiographic findings, age, and insurance status.^7-9

Among factors that contribute to surgical delays, the need for preoperative cardiovascular risk stratification is significantly modifiable.¹⁰ The American College of Cardiology (ACC)/American Heart Association (AHA) Task Force risk stratification framework for preoperative cardiac testing assists clinicians in determining surgical urgency, active cardiac conditions, cardiovascular risk factors, and functional capacity of each patient, and is well established for low- or intermediate-risk patients.¹¹ Specifically, metabolic equivalents (METs) measurements are used to identify medically stable patients with good or excellent functional capacity versus poor or unknown functional status. Patients with ≥ 4 METs may proceed to surgery without further testing; patients with < 4 METs may either proceed with planned surgery or undergo additional testing. Patients with a perceived increased risk profile who require urgent or semi-urgent hip fracture repair may be confounded by disagreement about required preoperative cardiac testing.

At OhioHealth Grant Medical Center (GMC), an urban, level 1 trauma center, the consideration of further preoperative noninvasive testing frequently contributed to surgical delays. In 2009, hip fracture patients arriving to the emergency department (ED) waited an average of 51 hours before being transferred to the operating room (OR) for surgery. Presuming prompt surgery is both desirable and feasible, the Grant Hip Fracture Management Committee (GHFMC) was developed in order to expedite surgeries in hip fracture patients. The GHFMC recommended a preoperative hip fracture protocol, and the outcomes from protocol implementation are described in this article.

Methods

This study was approved by the OhioHealth Institutional Review Board, with a waiver of the informed consent requirement. Medical records from patients treated at GMC during the time period between January 2010 and April 2014 (ie, following implementation of GHFMC recommendations) were retrospectively reviewed to identify the extent to which the use of preoperative transthoracic echocardiography (TTE) reduced average time to surgery and total length of stay, compared to cardiac consultation. This chart review included 316 participants and was used to identify primary induction agent utilized, time to medical optimization, time to surgery, and total length of hospital stay.

Intervention

The GHFMC conducted a 9-month quality improvement project to decrease ED-to-OR time to less than 24 hours for hip fracture patients. The multidisciplinary committee consisted of physicians from orthopedic surgery, anesthesia, hospital medicine, and geriatrics, along with key administrators and nurse outcomes managers. While there is lack of complete clarity surrounding optimal surgical timing, the committee decided that surgery within 24 hours would be beneficial for the majority of patients and therefore was considered a prudent goal.

Based on identified barriers that contributed to surgical delays, several process improvement strategies were implemented, including admitting patients to the hospitalist service, engaging the orthopedic trauma team, and implementing pre- and postoperative protocols and order sets (eg, ED and pain management order sets). Specific emphasis was placed on establishing guidelines for determining medical optimization. In the absence of established guidelines, medical optimization was determined at the discretion of the attending physician. The necessity of preoperative cardiac assessment was based, in part, on physician concerns about determining safe anesthesia protocols and hemodynamically managing patients who may have occult heart disease, specifically those patients with low functional capacity (< 4 METs) and/or inability to accurately communicate their medical history.

Many hip fractures result from a fall, and it may be unclear whether the fall causing a fracture was purely mechanical or indicative of a distinct acute or chronic illness. As a result, many patients received cardiac consultations, with or without pharmacologic stress testing, adding another 24 to 36 hours to preoperative time. As invasive preoperative cardiac procedures generally result in surgical delays without improving outcomes,¹¹ the committee recommended that clinicians reserve preoperative cardiac consultation for patients with active cardiac conditions.

In lieu of cardiac consultation, the committee suggested preoperative TTE. While use of TTE has not been shown to improve preoperative risk stratification in routine noncardiac surgeries, it has been shown to provide clinically useful information in patients at high risk for cardiac complications.¹¹ There was consensus for incorporating preoperative TTE for several reasons: (1) the patients with hip fractures were not “routine,” and often did not have a reliable medical history; (2) a large percentage of patients had cardiac risk factors; (3) patients with undiagnosed aortic stenosis, severe left ventricular dysfunction, or severe pulmonary hypertension would likely have altered intraoperative fluid management; and (4) in supplanting cardiac consultations, TTE would likely expedite patients’ ED-to-OR times. Therefore, the GHFMC created a recommendation of ordering urgent TTE for patients who were unable to exercise at ≥ 4 METs but needed urgent hip fracture surgery.

In order to evaluate the success of the new protocol, the ED-to-OR times were calculated for a cohort of patients who underwent surgery for hip fracture following algorithm implementation.

Participants

A chart review was conducted for patients admitted to GMC between January 2010 and April 2014 for operative treatment of a hip fracture. Exclusion criteria included lack of radiologist-diagnosed hip fracture, periprosthetic hip fracture, or multiple traumas. Electronic patient charts were reviewed by investigators (KI and BO) using a standardized, electronic abstraction form for 3 groups of patients who (1) proceeded directly to planned surgery without TTE or cardiac consultation (direct-to-surgery group); (2) received preoperative TTE but not a cardiac consultation (TTE-only group); or (3) received preoperative cardiac consultation (cardiac consult group).

Measures

Demographics, comorbid conditions, MET score, anesthesia protocol, and in-hospital morbidity and mortality were extracted from medical charts. Medical optimization time was determined by the latest time stamp of 1 of the following: time that the final consulting specialist stated that the patient was stable for surgery; time that the hospitalist described the patient as being ready for surgery; time that the TTE report was certified by the reading cardiologist; or time that the hospitalist described the outcome of completed preoperative risk stratification. Time elapsed prior to medical optimization, surgery, and discharge were calculated using differences between the patient’s arrival date and time at the ED, first recorded time of medical optimization, surgical start time (from the surgical report), and discharge time, respectively.

To assess whether the TTE protocol may have affected anesthesia selection, the induction agent (etomidate or propofol) was abstracted from anesthesia reports and stratified by the ejection fraction of each patient: very low (≤ 35%), low (36%–50%), or normal (> 50%). Patients without an echocardiogram report were assumed to have a normal ejection fraction for this analysis.

Analysis

Descriptive statistics were produced using mean and standard deviation (SD) for continuous variables and frequency and percentage for categorical variables. To determine whether statistically significant differences existed between the 3 groups, the Kruskal-Wallis test was used to compare skewed continuous variables, and Pearson’s chi-square test was used to compare categorical variables. Due to differences in baseline patient characteristics across the 3 treatment groups, inverse probability weights were used to adjust for group differences (using a multinomial logit treatment model) while comparing differences in outcome variables. This modeling strategy does not rely on any assumptions for the distribution of the outcome variable. Covariates were considered for inclusion in the treatment or outcome model if they were significantly associated (P < 0.05) with the group variable. Additionally, anesthetic agent (etomidate or propofol) was compared across the treatment groups after stratifying by ejection fraction to identify whether any differences existed in anesthesia regimen. Patients who were prescribed more than 1 anesthetic agent (n = 2) or an agent that was not of interest were removed from the analysis (n = 13). Stata (version 14) was used for analysis. All other missing data with respect to the tested variables were omitted in the analysis for that variable. Any disagreements about abstraction were resolved through consensus between the investigators.

Results

A total of 316 cases met inclusion criteria, including 108 direct-to-surgery patients, 143 preoperative TTE patients, and 65 cardiac consult patients. Patient demographics and preoperative characteristics are shown in Table 1. The average age for all patients was 76.5 years of age (SD, 12.89; IQR, 34-97); however, direct-to-surgery patients were significantly (P < 0.001) younger (71.2 years; SD, 14.2; interquartile range [IQR], 34-95 years) than TTE-only patients (79.0 years; SD, 11.5; IQR, 35-97 years) and cardiac consult patients (79.57 years; SD, 10.63; IQR, 49-97 years). The majority of patients were female (69.9%) and experienced a fall prior to admission (94%). Almost three-fourths of patients had 1 or more cardiac risk factors (73.7%), including history of congestive heart failure (CHF; 19%), coronary artery disease (CAD; 26.3%), chronic obstructive pulmonary disease (COPD; 19.3%), or aortic stenosis (AS; 3.5%). Due to between-group differences in these comorbid conditions, confounding factors were adjusted for in subsequent analyses.

As shown in Table 2, before adjustment for confounding factors, there were significant between-group differences in medical optimization time for patients in all 3 groups. After adjustment for treatment differences using age and number of comorbid diseases, and medical optimization time differences using age and COPD, fewer between-group differences were statistically significant. Patients who received a cardiac consult had an 18.44-hour longer medical optimization time compared to patients who went directly to surgery (29.136 vs 10.696 hours; P = 0.001). Optimization remained approximately 5 hours longer for the TTE-only group than for the direct-to-surgery group; however, this difference was not significant (P = 0.075).

When comparing differences in ED-to-OR time for the 3 groups after adjusting the probability of treatment for age and the number of comorbid conditions, and adjusting the probability of ED-to-OR time for age, COPD, and CHF, significant differences remained in ED-to-OR times across all groups. Specifically, patients in the direct-to-surgery group experienced the shortest time (mean, 20.64 hours), compared to patients in the TTE-only group (mean, 26.32; P = 0.04) or patients in the cardiac consult group (mean, 36.08; P < 0.001). TTE-only patients had a longer time of 5.68 hours, compared to the direct-to-surgery group, and patients in the preoperative cardiac consult group were on average 15.44 hours longer than the direct-to-surgery group.

When comparing differences in the length of stay for the 3 groups before statistical adjustments, differences were observed; however, after removing the confounding factors related to treatment (age and CAD) and the outcome (age and the number of comorbid conditions), there were no statistically significant differences in the length of stay for the 3 groups. Average length of stay was 131 hours for direct-to-surgery patients, 142 hours for TTE-only patients, and 141 hours for cardiac consult patients.

The use of different anesthetic agents was compared for patients in the 3 groups. The majority of patients in the study (87.7%) were given propofol, and there were no differences after stratifying by ejection fraction (Table 3).

Discussion

The GHFMC was created to reduce surgical delays for hip fracture. Medical optimization was considered a primary, modifiable factor given that surgeons were reluctant to proceed without a cardiac consult. To address this gap, the committee recommended a preoperative TTE for patients with low or unknown functional status. This threshold provides a quick and easy method for stratifying patients who previously required risk stratification by a cardiologist, which often resulted in surgery delays.

In their recommendations for implementation of hip fracture quality improvement projects, the Geriatric Fracture Center emphasizes the importance of multidisciplinary physician leadership along with standardization of approach across patients.¹² This recommendation is supported by increasing evidence that orthogeriatric collaborations are associated with decreased mortality and length of stay.¹³ The GHFMC and subsequent interventions reflect this approach, allowing for collaboration to identify cross-disciplinary procedural barriers to care. In our institution, addressing identified procedural barriers to care was associated with a reduction in the average time to surgery from 51 hours to 25.3 hours.

Multiple approaches have been attempted to decrease presurgical time in hip fracture patients in various settings. Prehospital interventions, such as providing ambulances with checklists and ability to bypass the ED, have not been shown to decrease time to surgery for hip fracture patients, though similar strategies have been successful in other conditions, such as stroke.^14,15 In-hospital procedures, such as implementation of a hip fracture protocol and reduction of preoperative interventions, have more consistently been found to decrease time to surgery and in-hospital mortality.^16,17 However, reduced delays have not been found universally. Luttrell and Nana found that preoperative TTE resulted in approximately 30.8-hour delays from the ED to OR, compared to patients who did not receive a preoperative TTE.¹⁸ However, in that study hospitalists used TTE at their own discretion, and there may have been confounding factors contributing to delays. When used as part of a protocol targeting patients with poor or unknown functional capacity, we believe that preoperative TTE results in modest surgical delays yet provides clinically useful information about each patient.

ACC/AHA preoperative guidelines were updated after we implemented our intervention and now recommend that patients with poor or unknown functional capacity in whom stress testing will not influence care proceed to surgery “according to guideline-directed medical care.”¹¹ While routine use of preoperative evaluation of left ventricular function is not recommended, assessing left ventricular function may be reasonable for patients with heart failure with a change in clinical status. Guidelines also recommend that patients with clinically suspected valvular stenosis undergo preoperative echocardiography.¹¹

Limitations

This study has several limitations. First, due to resource limitations, a substantial period of time elapsed between implementation of the new protocol and the analysis of the data set. That is, the hip fracture protocol assessed in this paper occurred from January 2010 through April 2014, and final analysis of the data set occurred in April 2020. This limitation precludes our ability to formally assess any pre- or post-protocol changes in patient outcomes. Second, randomization was not used to create groups that were balanced in differing health characteristics (ie, patients with noncardiac-related surgeries, patients in different age groups); however, the use of inverse probability treatment regression analysis was a way to statistically address these between-group differences. Moreover, this study is limited by the factors that were measured; unmeasured factors cannot be accounted for. Third, health care providers working at the hospital during this time were aware of the goal to decrease presurgical time, possibly creating exaggerated effects compared to a blinded trial. Finally, although this intervention is likely translatable to other centers, these results represent the experiences of a single level 1 trauma center and may not be replicable elsewhere.

Conclusion

Preoperative TTE in lieu of cardiac consultation has several advantages. First, it requires interdepartmental collaboration for implementation, but can be implemented through a single hospital or hospital system. Unlike prehospital interventions, preoperative urgent TTE for patients with low functional capacity does not require the support of emergency medical technicians, ambulance services, or other hospitals in the region. Second, while costs are associated with TTE, they are offset by a reduction in expensive consultations with specialists, surgical delays, and longer lengths of stay. Third, despite likely increased ED-to-OR times compared to no intervention, urgent TTE decreases time to surgery compared with cardiology consultation. Prior to the GHFMC, the ED-to-OR time at our institution was 51 hours. In contrast, the mean time following the GHFMC-led protocol was less than half that, at 25.3 hours (SD, 19.1 hours). In fact, nearly two-thirds (65.2%) of the patients evaluated in this study underwent surgery within 24 hours of admission. This improvement in presurgical time was attributed, in part, to the implementation of preoperative TTE over cardiology consultations.

Acknowledgments: The authors thank Jenny Williams, RN, who was instrumental in obtaining the data set for analysis, and Shauna Ayres, MPH, from the OhioHealth Research Institute, who provided writing and technical assistance.

Corresponding author: Robert Skully, MD, OhioHealth Family Medicine Grant, 290 East Town St., Columbus, OH 43215; [email protected].

Funding: This work was supported by the OhioHealth Summer Research Externship Program.

Financial disclosures: None.

From Dignity Health Methodist Hospital of Sacramento Family Medicine Residency Program, Sacramento, CA (Dr. Oldach); Nationwide Children’s Hospital, Columbus, OH (Dr. Irwin); OhioHealth Research Institute, Columbus, OH (Dr. Pershing); Department of Clinical Transformation, OhioHealth, Columbus, OH (Dr. Zigmont and Dr. Gascon); and Department of Geriatrics, OhioHealth, Columbus, OH (Dr. Skully).

Abstract

Objective: An interdisciplinary committee was formed to identify factors contributing to surgical delays in urgent hip fracture repair at an urban, level 1 trauma center, with the goal of reducing preoperative time to less than 24 hours. Surgical optimization was identified as a primary, modifiable factor, as surgeons were reluctant to clear patients for surgery without cardiac consultation. Preoperative transthoracic echocardiogram (TTE) was recommended as a safe alternative to cardiac consultation in most patients.

Methods: A retrospective review was conducted for patients who underwent urgent hip fracture repair between January 2010 and April 2014 (n = 316). Time to medical optimization, time to surgery, hospital length of stay, and anesthesia induction were compared for 3 patient groups of interest: those who received (1) neither TTE nor cardiology consultation (ie, direct to surgery); (2) a preoperative TTE; or (3) preoperative cardiac consultation.

Results: There were significant between-group differences in medical optimization time (P = 0.001) and mean time to surgery (P < 0.001) when comparing the 3 groups of interest. Patients in the preoperative cardiac consult group had the longest times, followed by the TTE and direct-to-surgery groups. There were no differences in the type of induction agent used across treatment groups when stratifying by ejection fraction.

Conclusion: Preoperative TTE allows for decreased preoperative time compared to a cardiology consultation. It provides an easily implemented inter-departmental, intra-institutional intervention to decrease preoperative time in patients presenting with hip fractures.

Keywords: surgical delay; preoperative risk stratification; process improvement.

Hip fractures are common, expensive, and associated with poor outcomes.^1,2 Ample literature suggests that morbidity, mortality, and cost of care may be reduced by minimizing surgical delays.^3-5 While individual reports indicate mixed evidence, in a 2010 meta-analysis, surgery within 72 hours was associated with significant reductions in pneumonia and pressure sores, as well as a 19% reduction in all-cause mortality through 1 year.⁶ Additional reviews suggest evidence of improved patient outcomes (pain, length of stay, non-union, and/or mortality) when surgery occurs early, within 12 to 72 hours after injury.^4,6,7 Regardless of the definition of “early surgery” used, surgical delay remains a challenge, often due to organizational factors, including admission day of the week and hospital staffing, and patient characteristics, such as comorbidities, echocardiographic findings, age, and insurance status.^7-9

Among factors that contribute to surgical delays, the need for preoperative cardiovascular risk stratification is significantly modifiable.¹⁰ The American College of Cardiology (ACC)/American Heart Association (AHA) Task Force risk stratification framework for preoperative cardiac testing assists clinicians in determining surgical urgency, active cardiac conditions, cardiovascular risk factors, and functional capacity of each patient, and is well established for low- or intermediate-risk patients.¹¹ Specifically, metabolic equivalents (METs) measurements are used to identify medically stable patients with good or excellent functional capacity versus poor or unknown functional status. Patients with ≥ 4 METs may proceed to surgery without further testing; patients with < 4 METs may either proceed with planned surgery or undergo additional testing. Patients with a perceived increased risk profile who require urgent or semi-urgent hip fracture repair may be confounded by disagreement about required preoperative cardiac testing.

At OhioHealth Grant Medical Center (GMC), an urban, level 1 trauma center, the consideration of further preoperative noninvasive testing frequently contributed to surgical delays. In 2009, hip fracture patients arriving to the emergency department (ED) waited an average of 51 hours before being transferred to the operating room (OR) for surgery. Presuming prompt surgery is both desirable and feasible, the Grant Hip Fracture Management Committee (GHFMC) was developed in order to expedite surgeries in hip fracture patients. The GHFMC recommended a preoperative hip fracture protocol, and the outcomes from protocol implementation are described in this article.

Methods

This study was approved by the OhioHealth Institutional Review Board, with a waiver of the informed consent requirement. Medical records from patients treated at GMC during the time period between January 2010 and April 2014 (ie, following implementation of GHFMC recommendations) were retrospectively reviewed to identify the extent to which the use of preoperative transthoracic echocardiography (TTE) reduced average time to surgery and total length of stay, compared to cardiac consultation. This chart review included 316 participants and was used to identify primary induction agent utilized, time to medical optimization, time to surgery, and total length of hospital stay.

Intervention

The GHFMC conducted a 9-month quality improvement project to decrease ED-to-OR time to less than 24 hours for hip fracture patients. The multidisciplinary committee consisted of physicians from orthopedic surgery, anesthesia, hospital medicine, and geriatrics, along with key administrators and nurse outcomes managers. While there is lack of complete clarity surrounding optimal surgical timing, the committee decided that surgery within 24 hours would be beneficial for the majority of patients and therefore was considered a prudent goal.

Based on identified barriers that contributed to surgical delays, several process improvement strategies were implemented, including admitting patients to the hospitalist service, engaging the orthopedic trauma team, and implementing pre- and postoperative protocols and order sets (eg, ED and pain management order sets). Specific emphasis was placed on establishing guidelines for determining medical optimization. In the absence of established guidelines, medical optimization was determined at the discretion of the attending physician. The necessity of preoperative cardiac assessment was based, in part, on physician concerns about determining safe anesthesia protocols and hemodynamically managing patients who may have occult heart disease, specifically those patients with low functional capacity (< 4 METs) and/or inability to accurately communicate their medical history.

Many hip fractures result from a fall, and it may be unclear whether the fall causing a fracture was purely mechanical or indicative of a distinct acute or chronic illness. As a result, many patients received cardiac consultations, with or without pharmacologic stress testing, adding another 24 to 36 hours to preoperative time. As invasive preoperative cardiac procedures generally result in surgical delays without improving outcomes,¹¹ the committee recommended that clinicians reserve preoperative cardiac consultation for patients with active cardiac conditions.

In lieu of cardiac consultation, the committee suggested preoperative TTE. While use of TTE has not been shown to improve preoperative risk stratification in routine noncardiac surgeries, it has been shown to provide clinically useful information in patients at high risk for cardiac complications.¹¹ There was consensus for incorporating preoperative TTE for several reasons: (1) the patients with hip fractures were not “routine,” and often did not have a reliable medical history; (2) a large percentage of patients had cardiac risk factors; (3) patients with undiagnosed aortic stenosis, severe left ventricular dysfunction, or severe pulmonary hypertension would likely have altered intraoperative fluid management; and (4) in supplanting cardiac consultations, TTE would likely expedite patients’ ED-to-OR times. Therefore, the GHFMC created a recommendation of ordering urgent TTE for patients who were unable to exercise at ≥ 4 METs but needed urgent hip fracture surgery.

In order to evaluate the success of the new protocol, the ED-to-OR times were calculated for a cohort of patients who underwent surgery for hip fracture following algorithm implementation.

Participants

A chart review was conducted for patients admitted to GMC between January 2010 and April 2014 for operative treatment of a hip fracture. Exclusion criteria included lack of radiologist-diagnosed hip fracture, periprosthetic hip fracture, or multiple traumas. Electronic patient charts were reviewed by investigators (KI and BO) using a standardized, electronic abstraction form for 3 groups of patients who (1) proceeded directly to planned surgery without TTE or cardiac consultation (direct-to-surgery group); (2) received preoperative TTE but not a cardiac consultation (TTE-only group); or (3) received preoperative cardiac consultation (cardiac consult group).

Measures

Demographics, comorbid conditions, MET score, anesthesia protocol, and in-hospital morbidity and mortality were extracted from medical charts. Medical optimization time was determined by the latest time stamp of 1 of the following: time that the final consulting specialist stated that the patient was stable for surgery; time that the hospitalist described the patient as being ready for surgery; time that the TTE report was certified by the reading cardiologist; or time that the hospitalist described the outcome of completed preoperative risk stratification. Time elapsed prior to medical optimization, surgery, and discharge were calculated using differences between the patient’s arrival date and time at the ED, first recorded time of medical optimization, surgical start time (from the surgical report), and discharge time, respectively.

To assess whether the TTE protocol may have affected anesthesia selection, the induction agent (etomidate or propofol) was abstracted from anesthesia reports and stratified by the ejection fraction of each patient: very low (≤ 35%), low (36%–50%), or normal (> 50%). Patients without an echocardiogram report were assumed to have a normal ejection fraction for this analysis.

Analysis

Descriptive statistics were produced using mean and standard deviation (SD) for continuous variables and frequency and percentage for categorical variables. To determine whether statistically significant differences existed between the 3 groups, the Kruskal-Wallis test was used to compare skewed continuous variables, and Pearson’s chi-square test was used to compare categorical variables. Due to differences in baseline patient characteristics across the 3 treatment groups, inverse probability weights were used to adjust for group differences (using a multinomial logit treatment model) while comparing differences in outcome variables. This modeling strategy does not rely on any assumptions for the distribution of the outcome variable. Covariates were considered for inclusion in the treatment or outcome model if they were significantly associated (P < 0.05) with the group variable. Additionally, anesthetic agent (etomidate or propofol) was compared across the treatment groups after stratifying by ejection fraction to identify whether any differences existed in anesthesia regimen. Patients who were prescribed more than 1 anesthetic agent (n = 2) or an agent that was not of interest were removed from the analysis (n = 13). Stata (version 14) was used for analysis. All other missing data with respect to the tested variables were omitted in the analysis for that variable. Any disagreements about abstraction were resolved through consensus between the investigators.

Results

A total of 316 cases met inclusion criteria, including 108 direct-to-surgery patients, 143 preoperative TTE patients, and 65 cardiac consult patients. Patient demographics and preoperative characteristics are shown in Table 1. The average age for all patients was 76.5 years of age (SD, 12.89; IQR, 34-97); however, direct-to-surgery patients were significantly (P < 0.001) younger (71.2 years; SD, 14.2; interquartile range [IQR], 34-95 years) than TTE-only patients (79.0 years; SD, 11.5; IQR, 35-97 years) and cardiac consult patients (79.57 years; SD, 10.63; IQR, 49-97 years). The majority of patients were female (69.9%) and experienced a fall prior to admission (94%). Almost three-fourths of patients had 1 or more cardiac risk factors (73.7%), including history of congestive heart failure (CHF; 19%), coronary artery disease (CAD; 26.3%), chronic obstructive pulmonary disease (COPD; 19.3%), or aortic stenosis (AS; 3.5%). Due to between-group differences in these comorbid conditions, confounding factors were adjusted for in subsequent analyses.

As shown in Table 2, before adjustment for confounding factors, there were significant between-group differences in medical optimization time for patients in all 3 groups. After adjustment for treatment differences using age and number of comorbid diseases, and medical optimization time differences using age and COPD, fewer between-group differences were statistically significant. Patients who received a cardiac consult had an 18.44-hour longer medical optimization time compared to patients who went directly to surgery (29.136 vs 10.696 hours; P = 0.001). Optimization remained approximately 5 hours longer for the TTE-only group than for the direct-to-surgery group; however, this difference was not significant (P = 0.075).

When comparing differences in ED-to-OR time for the 3 groups after adjusting the probability of treatment for age and the number of comorbid conditions, and adjusting the probability of ED-to-OR time for age, COPD, and CHF, significant differences remained in ED-to-OR times across all groups. Specifically, patients in the direct-to-surgery group experienced the shortest time (mean, 20.64 hours), compared to patients in the TTE-only group (mean, 26.32; P = 0.04) or patients in the cardiac consult group (mean, 36.08; P < 0.001). TTE-only patients had a longer time of 5.68 hours, compared to the direct-to-surgery group, and patients in the preoperative cardiac consult group were on average 15.44 hours longer than the direct-to-surgery group.

When comparing differences in the length of stay for the 3 groups before statistical adjustments, differences were observed; however, after removing the confounding factors related to treatment (age and CAD) and the outcome (age and the number of comorbid conditions), there were no statistically significant differences in the length of stay for the 3 groups. Average length of stay was 131 hours for direct-to-surgery patients, 142 hours for TTE-only patients, and 141 hours for cardiac consult patients.

The use of different anesthetic agents was compared for patients in the 3 groups. The majority of patients in the study (87.7%) were given propofol, and there were no differences after stratifying by ejection fraction (Table 3).

Discussion

The GHFMC was created to reduce surgical delays for hip fracture. Medical optimization was considered a primary, modifiable factor given that surgeons were reluctant to proceed without a cardiac consult. To address this gap, the committee recommended a preoperative TTE for patients with low or unknown functional status. This threshold provides a quick and easy method for stratifying patients who previously required risk stratification by a cardiologist, which often resulted in surgery delays.

In their recommendations for implementation of hip fracture quality improvement projects, the Geriatric Fracture Center emphasizes the importance of multidisciplinary physician leadership along with standardization of approach across patients.¹² This recommendation is supported by increasing evidence that orthogeriatric collaborations are associated with decreased mortality and length of stay.¹³ The GHFMC and subsequent interventions reflect this approach, allowing for collaboration to identify cross-disciplinary procedural barriers to care. In our institution, addressing identified procedural barriers to care was associated with a reduction in the average time to surgery from 51 hours to 25.3 hours.

Multiple approaches have been attempted to decrease presurgical time in hip fracture patients in various settings. Prehospital interventions, such as providing ambulances with checklists and ability to bypass the ED, have not been shown to decrease time to surgery for hip fracture patients, though similar strategies have been successful in other conditions, such as stroke.^14,15 In-hospital procedures, such as implementation of a hip fracture protocol and reduction of preoperative interventions, have more consistently been found to decrease time to surgery and in-hospital mortality.^16,17 However, reduced delays have not been found universally. Luttrell and Nana found that preoperative TTE resulted in approximately 30.8-hour delays from the ED to OR, compared to patients who did not receive a preoperative TTE.¹⁸ However, in that study hospitalists used TTE at their own discretion, and there may have been confounding factors contributing to delays. When used as part of a protocol targeting patients with poor or unknown functional capacity, we believe that preoperative TTE results in modest surgical delays yet provides clinically useful information about each patient.

ACC/AHA preoperative guidelines were updated after we implemented our intervention and now recommend that patients with poor or unknown functional capacity in whom stress testing will not influence care proceed to surgery “according to guideline-directed medical care.”¹¹ While routine use of preoperative evaluation of left ventricular function is not recommended, assessing left ventricular function may be reasonable for patients with heart failure with a change in clinical status. Guidelines also recommend that patients with clinically suspected valvular stenosis undergo preoperative echocardiography.¹¹

Limitations

This study has several limitations. First, due to resource limitations, a substantial period of time elapsed between implementation of the new protocol and the analysis of the data set. That is, the hip fracture protocol assessed in this paper occurred from January 2010 through April 2014, and final analysis of the data set occurred in April 2020. This limitation precludes our ability to formally assess any pre- or post-protocol changes in patient outcomes. Second, randomization was not used to create groups that were balanced in differing health characteristics (ie, patients with noncardiac-related surgeries, patients in different age groups); however, the use of inverse probability treatment regression analysis was a way to statistically address these between-group differences. Moreover, this study is limited by the factors that were measured; unmeasured factors cannot be accounted for. Third, health care providers working at the hospital during this time were aware of the goal to decrease presurgical time, possibly creating exaggerated effects compared to a blinded trial. Finally, although this intervention is likely translatable to other centers, these results represent the experiences of a single level 1 trauma center and may not be replicable elsewhere.

Conclusion

Preoperative TTE in lieu of cardiac consultation has several advantages. First, it requires interdepartmental collaboration for implementation, but can be implemented through a single hospital or hospital system. Unlike prehospital interventions, preoperative urgent TTE for patients with low functional capacity does not require the support of emergency medical technicians, ambulance services, or other hospitals in the region. Second, while costs are associated with TTE, they are offset by a reduction in expensive consultations with specialists, surgical delays, and longer lengths of stay. Third, despite likely increased ED-to-OR times compared to no intervention, urgent TTE decreases time to surgery compared with cardiology consultation. Prior to the GHFMC, the ED-to-OR time at our institution was 51 hours. In contrast, the mean time following the GHFMC-led protocol was less than half that, at 25.3 hours (SD, 19.1 hours). In fact, nearly two-thirds (65.2%) of the patients evaluated in this study underwent surgery within 24 hours of admission. This improvement in presurgical time was attributed, in part, to the implementation of preoperative TTE over cardiology consultations.

Acknowledgments: The authors thank Jenny Williams, RN, who was instrumental in obtaining the data set for analysis, and Shauna Ayres, MPH, from the OhioHealth Research Institute, who provided writing and technical assistance.

Corresponding author: Robert Skully, MD, OhioHealth Family Medicine Grant, 290 East Town St., Columbus, OH 43215; [email protected].

Funding: This work was supported by the OhioHealth Summer Research Externship Program.

Financial disclosures: None.

Primary care physicians (PCPs) generate only a small part of the $75 billion to $100 billion wasted every year on low-value care, according to a brief report published online Jan. 18 in Annals of Internal Medicine.

However, one expert said there are better ways to curb low-value care than focusing on which specialties are guilty of the practice.

Analyzing a 20% random sample of Medicare Part B claims, Aaron Baum, PhD, with the Icahn School of Medicine at Mount Sinai, New York, and colleagues found that the services primary care physicians performed or ordered made up on average 8.3% of the low-value care their patients received (interquartile range, 3.9%-15.1%; 95th percentile, 35.6%) and their referrals made up 15.4% (IQR, 6.3%-26.4%; 95th percentile, 44.6%).

By specialty, cardiology had the worst record with 27% of all spending on low-value services ($1.8 billion) attributed to that specialty. Yet, of the 25 highest-spending specialties in the report, 12 of them were associated with 1% or less than 1% each of all low-value spending, indicating the waste was widely distributed.

Dr. Baum said in an interview that though there are some PCPs guilty of high spending on low-value services, overall, most primary care physicians’ low-value services add up to only 0.3% of Part B spending. He noted that Part B spending is about one-third of all Medicare spending.

Primary care is often thought to be at the core of care management and spending and PCPs are often seen as the gatekeepers, but this analysis suggests that efforts to make big differences in curtailing low-value spending might be more effective elsewhere.

“There’s only so much spending you can reduce by changing primary care physicians’ services that they directly perform,” Dr. Baum said.
 

Low-value care is costly, can be harmful

Mark Fendrick, MD, director of the University of Michigan’s Center for Value-Based Insurance Design in Ann Arbor, said in an interview that the report adds confirmation to previous research that has consistently shown low-value care is “extremely common, very costly, and provided by primary care providers and specialists alike.” He noted that it can also be harmful.

“The math is simple,” he said. “If we want to improve coverage and lower patient costs for essential services like visits, diagnostic tests, and drugs, we have to reduce spending on those services that do not make Americans any healthier.”

The study ranked 31 clinical services judged to be low value by physician societies, Medicare and clinical guidelines, and their use among beneficiaries enrolled between 2007 and 2014. Here’s how the top six low-value services compare.

Dr. Fendrick said a weakness of the paper is the years of the data (2007-2014). Some of the criteria around low-value care have changed since then. The age that a prostate-specific antigen test becomes low-value is now 70 years, for instance, instead of 75. He added that some of the figures attributed to non-PCP providers appear out of date.

Dr. Fendrick said, “I understand that there are Medicare patients who end up at a gastroenterologist or surgeon’s office to get colorectal cancer screening, but it would be very hard for me to believe that half of stress tests and over half of colon cancer screening over [age] 85 [years] and half of PSA for people over 75 did not have some type of referring clinicians involved. I certainly don’t think that would be the case in 2020-2021.”

Dr. Baum said those years were the latest years available for the data points needed for this analysis, but he and his colleagues were working to update the data for future publication.

Dr. Fendrick said not much has changed in recent years in terms of waste on low-value care, even with campaigns such as Choosing Wisely dedicated to identifying low-value services or procedures in each specialty.

“I believe there’s not a particular group of clinicians one way or the other who are actually doing any better now than they were 7 years ago,” he said. He would rather focus less on which specialties are associated with the most low-value care and more on the underlying policies that encourage low-value care.

“If you’re going to get paid for doing a stress test and get paid nothing or significantly less if you don’t, the incentives are in the wrong direction,” he said.

Dr. Fendrick said the pandemic era provides an opportunity to eliminate low-value care because use of those services has dropped drastically as resources have been diverted to COVID-19 patients and many services have been delayed or canceled.

He said he has been pushing an approach that providers should be paid more after the pandemic “to do the things we want them to do.”

As an example, he said, instead of paying $886 million on colonoscopies for people over the age of 85, “why don’t we put a policy in place that would make it better for patients by lowering cost sharing and better for providers by paying them more to do the service on the people who need it as opposed to the people who don’t?”

The research was funded by the American Board of Family Medicine Foundation. Dr. Baum and a coauthor reported receiving personal fees from American Board of Family Medicine Foundation during the conduct of the study. Another coauthor reported receiving personal fees from Collective Health, HealthRight 360, PLOS Medicine, and the New England Journal of Medicine, outside the submitted work. Dr. Fendrick disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Primary care physicians (PCPs) generate only a small part of the $75 billion to $100 billion wasted every year on low-value care, according to a brief report published online Jan. 18 in Annals of Internal Medicine.

However, one expert said there are better ways to curb low-value care than focusing on which specialties are guilty of the practice.

Analyzing a 20% random sample of Medicare Part B claims, Aaron Baum, PhD, with the Icahn School of Medicine at Mount Sinai, New York, and colleagues found that the services primary care physicians performed or ordered made up on average 8.3% of the low-value care their patients received (interquartile range, 3.9%-15.1%; 95th percentile, 35.6%) and their referrals made up 15.4% (IQR, 6.3%-26.4%; 95th percentile, 44.6%).

By specialty, cardiology had the worst record with 27% of all spending on low-value services ($1.8 billion) attributed to that specialty. Yet, of the 25 highest-spending specialties in the report, 12 of them were associated with 1% or less than 1% each of all low-value spending, indicating the waste was widely distributed.

Dr. Baum said in an interview that though there are some PCPs guilty of high spending on low-value services, overall, most primary care physicians’ low-value services add up to only 0.3% of Part B spending. He noted that Part B spending is about one-third of all Medicare spending.

Primary care is often thought to be at the core of care management and spending and PCPs are often seen as the gatekeepers, but this analysis suggests that efforts to make big differences in curtailing low-value spending might be more effective elsewhere.

“There’s only so much spending you can reduce by changing primary care physicians’ services that they directly perform,” Dr. Baum said.
 

Low-value care is costly, can be harmful

Mark Fendrick, MD, director of the University of Michigan’s Center for Value-Based Insurance Design in Ann Arbor, said in an interview that the report adds confirmation to previous research that has consistently shown low-value care is “extremely common, very costly, and provided by primary care providers and specialists alike.” He noted that it can also be harmful.

“The math is simple,” he said. “If we want to improve coverage and lower patient costs for essential services like visits, diagnostic tests, and drugs, we have to reduce spending on those services that do not make Americans any healthier.”

The study ranked 31 clinical services judged to be low value by physician societies, Medicare and clinical guidelines, and their use among beneficiaries enrolled between 2007 and 2014. Here’s how the top six low-value services compare.

Dr. Fendrick said a weakness of the paper is the years of the data (2007-2014). Some of the criteria around low-value care have changed since then. The age that a prostate-specific antigen test becomes low-value is now 70 years, for instance, instead of 75. He added that some of the figures attributed to non-PCP providers appear out of date.

Dr. Fendrick said, “I understand that there are Medicare patients who end up at a gastroenterologist or surgeon’s office to get colorectal cancer screening, but it would be very hard for me to believe that half of stress tests and over half of colon cancer screening over [age] 85 [years] and half of PSA for people over 75 did not have some type of referring clinicians involved. I certainly don’t think that would be the case in 2020-2021.”

Dr. Baum said those years were the latest years available for the data points needed for this analysis, but he and his colleagues were working to update the data for future publication.

Dr. Fendrick said not much has changed in recent years in terms of waste on low-value care, even with campaigns such as Choosing Wisely dedicated to identifying low-value services or procedures in each specialty.

“I believe there’s not a particular group of clinicians one way or the other who are actually doing any better now than they were 7 years ago,” he said. He would rather focus less on which specialties are associated with the most low-value care and more on the underlying policies that encourage low-value care.

“If you’re going to get paid for doing a stress test and get paid nothing or significantly less if you don’t, the incentives are in the wrong direction,” he said.

Dr. Fendrick said the pandemic era provides an opportunity to eliminate low-value care because use of those services has dropped drastically as resources have been diverted to COVID-19 patients and many services have been delayed or canceled.

He said he has been pushing an approach that providers should be paid more after the pandemic “to do the things we want them to do.”

As an example, he said, instead of paying $886 million on colonoscopies for people over the age of 85, “why don’t we put a policy in place that would make it better for patients by lowering cost sharing and better for providers by paying them more to do the service on the people who need it as opposed to the people who don’t?”

The research was funded by the American Board of Family Medicine Foundation. Dr. Baum and a coauthor reported receiving personal fees from American Board of Family Medicine Foundation during the conduct of the study. Another coauthor reported receiving personal fees from Collective Health, HealthRight 360, PLOS Medicine, and the New England Journal of Medicine, outside the submitted work. Dr. Fendrick disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Primary care physicians (PCPs) generate only a small part of the $75 billion to $100 billion wasted every year on low-value care, according to a brief report published online Jan. 18 in Annals of Internal Medicine.

However, one expert said there are better ways to curb low-value care than focusing on which specialties are guilty of the practice.

Analyzing a 20% random sample of Medicare Part B claims, Aaron Baum, PhD, with the Icahn School of Medicine at Mount Sinai, New York, and colleagues found that the services primary care physicians performed or ordered made up on average 8.3% of the low-value care their patients received (interquartile range, 3.9%-15.1%; 95th percentile, 35.6%) and their referrals made up 15.4% (IQR, 6.3%-26.4%; 95th percentile, 44.6%).

By specialty, cardiology had the worst record with 27% of all spending on low-value services ($1.8 billion) attributed to that specialty. Yet, of the 25 highest-spending specialties in the report, 12 of them were associated with 1% or less than 1% each of all low-value spending, indicating the waste was widely distributed.

Dr. Baum said in an interview that though there are some PCPs guilty of high spending on low-value services, overall, most primary care physicians’ low-value services add up to only 0.3% of Part B spending. He noted that Part B spending is about one-third of all Medicare spending.

Primary care is often thought to be at the core of care management and spending and PCPs are often seen as the gatekeepers, but this analysis suggests that efforts to make big differences in curtailing low-value spending might be more effective elsewhere.

“There’s only so much spending you can reduce by changing primary care physicians’ services that they directly perform,” Dr. Baum said.
 

Low-value care is costly, can be harmful

Mark Fendrick, MD, director of the University of Michigan’s Center for Value-Based Insurance Design in Ann Arbor, said in an interview that the report adds confirmation to previous research that has consistently shown low-value care is “extremely common, very costly, and provided by primary care providers and specialists alike.” He noted that it can also be harmful.

“The math is simple,” he said. “If we want to improve coverage and lower patient costs for essential services like visits, diagnostic tests, and drugs, we have to reduce spending on those services that do not make Americans any healthier.”

The study ranked 31 clinical services judged to be low value by physician societies, Medicare and clinical guidelines, and their use among beneficiaries enrolled between 2007 and 2014. Here’s how the top six low-value services compare.

Dr. Fendrick said a weakness of the paper is the years of the data (2007-2014). Some of the criteria around low-value care have changed since then. The age that a prostate-specific antigen test becomes low-value is now 70 years, for instance, instead of 75. He added that some of the figures attributed to non-PCP providers appear out of date.

Dr. Fendrick said, “I understand that there are Medicare patients who end up at a gastroenterologist or surgeon’s office to get colorectal cancer screening, but it would be very hard for me to believe that half of stress tests and over half of colon cancer screening over [age] 85 [years] and half of PSA for people over 75 did not have some type of referring clinicians involved. I certainly don’t think that would be the case in 2020-2021.”

Dr. Baum said those years were the latest years available for the data points needed for this analysis, but he and his colleagues were working to update the data for future publication.

Dr. Fendrick said not much has changed in recent years in terms of waste on low-value care, even with campaigns such as Choosing Wisely dedicated to identifying low-value services or procedures in each specialty.

“I believe there’s not a particular group of clinicians one way or the other who are actually doing any better now than they were 7 years ago,” he said. He would rather focus less on which specialties are associated with the most low-value care and more on the underlying policies that encourage low-value care.

“If you’re going to get paid for doing a stress test and get paid nothing or significantly less if you don’t, the incentives are in the wrong direction,” he said.

Dr. Fendrick said the pandemic era provides an opportunity to eliminate low-value care because use of those services has dropped drastically as resources have been diverted to COVID-19 patients and many services have been delayed or canceled.

He said he has been pushing an approach that providers should be paid more after the pandemic “to do the things we want them to do.”

As an example, he said, instead of paying $886 million on colonoscopies for people over the age of 85, “why don’t we put a policy in place that would make it better for patients by lowering cost sharing and better for providers by paying them more to do the service on the people who need it as opposed to the people who don’t?”

The research was funded by the American Board of Family Medicine Foundation. Dr. Baum and a coauthor reported receiving personal fees from American Board of Family Medicine Foundation during the conduct of the study. Another coauthor reported receiving personal fees from Collective Health, HealthRight 360, PLOS Medicine, and the New England Journal of Medicine, outside the submitted work. Dr. Fendrick disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

While the direct toll of the COVID-19 pandemic is being tallied and shared on the nightly news, the indirect effects will undoubtedly take years to fully measure.

Floaria Bicher/iStock/Getty Images Plus

In two papers published online Jan. 11 in the Journal of the American College of Cardiology, researchers have started the process of quantifying the impact of the pandemic on the care of patients with cardiovascular disease (CVD).

In the first study, Rishi Wadhera, MD, MPP, MPhil, and colleagues from the Beth Israel Deaconess Medical Center and Harvard Medical School in Boston examined population-level data to determine how deaths from cardiovascular causes changed in the United States in the early months of the pandemic relative to the same periods in 2019.

In a second paper, Andrew J. Einstein, MD, PhD, from Columbia University Irving Medical Center/New York–Presbyterian Hospital and colleagues looked at the pandemic’s international impact on the diagnosis of heart disease.

Using data from the National Center for Health Statistics, Dr. Wadhera and colleagues compared death rates from cardiovascular causes in the United States from March 18, 2020, to June 2, 2020, (the first wave of the pandemic) and from Jan. 1, 2020, to March 17, 2020, (the period just before the pandemic started) and compared them to the same periods in 2019. ICD codes were used to identify underlying causes of death.

Relative to 2019, they found a significant increase in deaths from ischemic heart disease nationally (1.11; 95% confidence interval, 1.04-1.18), as well as an increase in deaths caused by hypertensive disease (1.17; 95% CI, 1.09-1.26). There was no apparent increase in deaths from heart failure, cerebrovascular disease, or other diseases of the circulatory system.

When they looked just at New York City, the area hit hardest during the early part of the pandemic, the relative increases in deaths from ischemic heart disease were more pronounced.

Deaths from ischemic heart disease or hypertensive diseases jumped 139% and 164%, respectively, between March 18, 2020, and June 2, 2020.

More modest increases in deaths were seen in the remainder of New York state, New Jersey, Michigan and Illinois, while Massachusetts and Louisiana did not see a change in cardiovascular deaths.

Several studies from different parts of the world have indicated a 40%-50% drop in hospitalization for myocardial infarction in the initial months of the pandemic, said Dr. Wadhera in an interview.

“We wanted to understand where did all the heart attacks go? And we worried that patients with urgent heart conditions were not seeking the medical care they needed. I think our data suggest that this may have been the case,” reported Dr. Wadhera.  

“This very much reflects the reality of what we’re seeing on the ground,” he told this news organization. “After the initial surge ended, when hospital volumes began to return to normal, we saw patients come into the hospital who clearly had a heart attack during the surge months – and were now experiencing complications of that event – because they had initially not come into the hospital due to concerns about exposure to the virus.”

A limitation of their data, he stressed, is whether some deaths coded as CVD deaths were really deaths from undiagnosed COVID-19. “It’s possible that some portion of the increased deaths we observed really reflect the cardiovascular complications of undiagnosed COVID-19, because we know that testing was quite limited during the early first surge of cases.”

“I think that basically three factors – patients avoiding the health care system because of fear of getting COVID, health care systems being strained and overwhelmed leading to the deferral of cardiovascular care and semi-elective procedures, and the cardiovascular complications of COVID-19 itself – all probably collectively contributed to the rise in cardiovascular deaths that we observed,” said Dr. Wadhera.

In an accompanying editorial, Michael N. Young, MD, Geisel School of Medicine at Dartmouth, Lebanon, N.H., and colleagues write that these data, taken together with an earlier study showing an increase in out-of-hospital cardiac arrests at the pandemic peak in New York City, “support the notion of excess fatalities due to unattended comorbid illnesses.” That said, attribution of death in the COVID era “remains problematic.”

In the second article, Andrew Einstein, MD, PhD, and the INCAPS COVID Investigators Group took a broader approach and looked at the impact of COVID-19 on cardiac diagnostic procedures in over 100 countries.

The INCAPS (International Atomic Energy Agency Noninvasive Cardiology Protocols Study) group has for the past decade conducted numerous studies addressing the use of best practices and worldwide practice variation in CVD diagnosis.

For this effort, they sent a survey link to INCAPS participants worldwide, ultimately including 909 survey responses from 108 countries in the final analysis.

Compared with March 2019, overall procedure volume decreased 42% in March 2020 and 64% in April 2020.

The greatest decreases were seen in stress testing (78%) and transesophageal echocardiography (76%), both procedures, noted Dr. Einstein, associated with a greater risk of aerosolization.

“Whether as we reset after COVID we return to the same place in terms of the use of cardiovascular diagnostic testing remains to be seen, but it certainly poses an opportunity to improve our utilization of various modes of testing,” said Dr. Einstein.

Using regression analysis, Dr. Einstein and colleagues were able to see that sites located in low-income and lower-middle-income countries saw an additional 22% reduction in cardiac procedures and less availability of personal protective equipment (PPE) and telehealth.

Fifty-two percent of survey respondents reported significant shortages of N95 masks early in the pandemic, with fewer issues in supplies of gloves, gowns, and face shields. Lower-income countries were more likely to face significant PPE shortages and less likely to be able to implement telehealth strategies to make up for reduced in-person care. PPE shortage itself, however, was not related to lower procedural volume on multivariable regression.

“It all really begs the question of whether there is more that the world can do to help out the developing world in terms of managing the pandemic in all its facets,” said Dr. Einstein in an interview, adding he was “shocked” to learn how difficult it was for some lower-income countries to get sufficient PPE.
 

Did shutdowns go too far?

Calling this a “remarkable study,” an editorial written by Darryl P. Leong, MBBS, PhD, John W. Eikelboom, MBBS, and Salim Yusuf, MBBS, DPhil, all from McMaster University, Hamilton, Ont., suggests that perhaps health systems in some places went too far in closing down during the first wave of the pandemic, naming specifically Canada, Eastern Europe, and Saudi Arabia as examples.

“Although these measures were taken to prepare for the worst, overwhelming numbers of patients with COVID-19 did not materialize during the first wave of the pandemic in these countries. It is possible that delaying so-called nonessential services may have been unnecessary and potentially harmful, because it likely led to delays in providing care for the treatment of serious non–COVID-19 illnesses.”

Since then, more experience and more data have largely allowed hospital systems to “tackle the ebb and flow” of COVID-19 cases in ways that limit shutdowns of important health services, they said.

Given the more pronounced effect in low- and middle-income countries, they stressed the need to focus resources on ways to promote prevention and treatment that do not rely on diagnostic procedures.

“This calls for more emphasis on developing efficient systems of telehealth, especially in poorer countries or in remote settings in all countries,” Dr. Leong and colleagues conclude.

Dr. Wadhera has reported research support from the National Heart, Lung, and Blood Institute, along with fellow senior author Robert W. Yeh, MD, MBA, who has also received personal fees and grants from several companies not related to the submitted work. Dr. Einstein, Dr. Leong, Dr. Eikelboom, and Dr. Yusuf have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

While the direct toll of the COVID-19 pandemic is being tallied and shared on the nightly news, the indirect effects will undoubtedly take years to fully measure.

Floaria Bicher/iStock/Getty Images Plus

In two papers published online Jan. 11 in the Journal of the American College of Cardiology, researchers have started the process of quantifying the impact of the pandemic on the care of patients with cardiovascular disease (CVD).

In the first study, Rishi Wadhera, MD, MPP, MPhil, and colleagues from the Beth Israel Deaconess Medical Center and Harvard Medical School in Boston examined population-level data to determine how deaths from cardiovascular causes changed in the United States in the early months of the pandemic relative to the same periods in 2019.

In a second paper, Andrew J. Einstein, MD, PhD, from Columbia University Irving Medical Center/New York–Presbyterian Hospital and colleagues looked at the pandemic’s international impact on the diagnosis of heart disease.

Using data from the National Center for Health Statistics, Dr. Wadhera and colleagues compared death rates from cardiovascular causes in the United States from March 18, 2020, to June 2, 2020, (the first wave of the pandemic) and from Jan. 1, 2020, to March 17, 2020, (the period just before the pandemic started) and compared them to the same periods in 2019. ICD codes were used to identify underlying causes of death.

Relative to 2019, they found a significant increase in deaths from ischemic heart disease nationally (1.11; 95% confidence interval, 1.04-1.18), as well as an increase in deaths caused by hypertensive disease (1.17; 95% CI, 1.09-1.26). There was no apparent increase in deaths from heart failure, cerebrovascular disease, or other diseases of the circulatory system.

When they looked just at New York City, the area hit hardest during the early part of the pandemic, the relative increases in deaths from ischemic heart disease were more pronounced.

Deaths from ischemic heart disease or hypertensive diseases jumped 139% and 164%, respectively, between March 18, 2020, and June 2, 2020.

More modest increases in deaths were seen in the remainder of New York state, New Jersey, Michigan and Illinois, while Massachusetts and Louisiana did not see a change in cardiovascular deaths.

Several studies from different parts of the world have indicated a 40%-50% drop in hospitalization for myocardial infarction in the initial months of the pandemic, said Dr. Wadhera in an interview.

“We wanted to understand where did all the heart attacks go? And we worried that patients with urgent heart conditions were not seeking the medical care they needed. I think our data suggest that this may have been the case,” reported Dr. Wadhera.  

“This very much reflects the reality of what we’re seeing on the ground,” he told this news organization. “After the initial surge ended, when hospital volumes began to return to normal, we saw patients come into the hospital who clearly had a heart attack during the surge months – and were now experiencing complications of that event – because they had initially not come into the hospital due to concerns about exposure to the virus.”

A limitation of their data, he stressed, is whether some deaths coded as CVD deaths were really deaths from undiagnosed COVID-19. “It’s possible that some portion of the increased deaths we observed really reflect the cardiovascular complications of undiagnosed COVID-19, because we know that testing was quite limited during the early first surge of cases.”

“I think that basically three factors – patients avoiding the health care system because of fear of getting COVID, health care systems being strained and overwhelmed leading to the deferral of cardiovascular care and semi-elective procedures, and the cardiovascular complications of COVID-19 itself – all probably collectively contributed to the rise in cardiovascular deaths that we observed,” said Dr. Wadhera.

In an accompanying editorial, Michael N. Young, MD, Geisel School of Medicine at Dartmouth, Lebanon, N.H., and colleagues write that these data, taken together with an earlier study showing an increase in out-of-hospital cardiac arrests at the pandemic peak in New York City, “support the notion of excess fatalities due to unattended comorbid illnesses.” That said, attribution of death in the COVID era “remains problematic.”

In the second article, Andrew Einstein, MD, PhD, and the INCAPS COVID Investigators Group took a broader approach and looked at the impact of COVID-19 on cardiac diagnostic procedures in over 100 countries.

The INCAPS (International Atomic Energy Agency Noninvasive Cardiology Protocols Study) group has for the past decade conducted numerous studies addressing the use of best practices and worldwide practice variation in CVD diagnosis.

For this effort, they sent a survey link to INCAPS participants worldwide, ultimately including 909 survey responses from 108 countries in the final analysis.

Compared with March 2019, overall procedure volume decreased 42% in March 2020 and 64% in April 2020.

The greatest decreases were seen in stress testing (78%) and transesophageal echocardiography (76%), both procedures, noted Dr. Einstein, associated with a greater risk of aerosolization.

“Whether as we reset after COVID we return to the same place in terms of the use of cardiovascular diagnostic testing remains to be seen, but it certainly poses an opportunity to improve our utilization of various modes of testing,” said Dr. Einstein.

Using regression analysis, Dr. Einstein and colleagues were able to see that sites located in low-income and lower-middle-income countries saw an additional 22% reduction in cardiac procedures and less availability of personal protective equipment (PPE) and telehealth.

Fifty-two percent of survey respondents reported significant shortages of N95 masks early in the pandemic, with fewer issues in supplies of gloves, gowns, and face shields. Lower-income countries were more likely to face significant PPE shortages and less likely to be able to implement telehealth strategies to make up for reduced in-person care. PPE shortage itself, however, was not related to lower procedural volume on multivariable regression.

“It all really begs the question of whether there is more that the world can do to help out the developing world in terms of managing the pandemic in all its facets,” said Dr. Einstein in an interview, adding he was “shocked” to learn how difficult it was for some lower-income countries to get sufficient PPE.
 

Did shutdowns go too far?

Calling this a “remarkable study,” an editorial written by Darryl P. Leong, MBBS, PhD, John W. Eikelboom, MBBS, and Salim Yusuf, MBBS, DPhil, all from McMaster University, Hamilton, Ont., suggests that perhaps health systems in some places went too far in closing down during the first wave of the pandemic, naming specifically Canada, Eastern Europe, and Saudi Arabia as examples.

“Although these measures were taken to prepare for the worst, overwhelming numbers of patients with COVID-19 did not materialize during the first wave of the pandemic in these countries. It is possible that delaying so-called nonessential services may have been unnecessary and potentially harmful, because it likely led to delays in providing care for the treatment of serious non–COVID-19 illnesses.”

Since then, more experience and more data have largely allowed hospital systems to “tackle the ebb and flow” of COVID-19 cases in ways that limit shutdowns of important health services, they said.

Given the more pronounced effect in low- and middle-income countries, they stressed the need to focus resources on ways to promote prevention and treatment that do not rely on diagnostic procedures.

“This calls for more emphasis on developing efficient systems of telehealth, especially in poorer countries or in remote settings in all countries,” Dr. Leong and colleagues conclude.

Dr. Wadhera has reported research support from the National Heart, Lung, and Blood Institute, along with fellow senior author Robert W. Yeh, MD, MBA, who has also received personal fees and grants from several companies not related to the submitted work. Dr. Einstein, Dr. Leong, Dr. Eikelboom, and Dr. Yusuf have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

While the direct toll of the COVID-19 pandemic is being tallied and shared on the nightly news, the indirect effects will undoubtedly take years to fully measure.

Floaria Bicher/iStock/Getty Images Plus

In two papers published online Jan. 11 in the Journal of the American College of Cardiology, researchers have started the process of quantifying the impact of the pandemic on the care of patients with cardiovascular disease (CVD).

In the first study, Rishi Wadhera, MD, MPP, MPhil, and colleagues from the Beth Israel Deaconess Medical Center and Harvard Medical School in Boston examined population-level data to determine how deaths from cardiovascular causes changed in the United States in the early months of the pandemic relative to the same periods in 2019.

In a second paper, Andrew J. Einstein, MD, PhD, from Columbia University Irving Medical Center/New York–Presbyterian Hospital and colleagues looked at the pandemic’s international impact on the diagnosis of heart disease.

Using data from the National Center for Health Statistics, Dr. Wadhera and colleagues compared death rates from cardiovascular causes in the United States from March 18, 2020, to June 2, 2020, (the first wave of the pandemic) and from Jan. 1, 2020, to March 17, 2020, (the period just before the pandemic started) and compared them to the same periods in 2019. ICD codes were used to identify underlying causes of death.

Relative to 2019, they found a significant increase in deaths from ischemic heart disease nationally (1.11; 95% confidence interval, 1.04-1.18), as well as an increase in deaths caused by hypertensive disease (1.17; 95% CI, 1.09-1.26). There was no apparent increase in deaths from heart failure, cerebrovascular disease, or other diseases of the circulatory system.

When they looked just at New York City, the area hit hardest during the early part of the pandemic, the relative increases in deaths from ischemic heart disease were more pronounced.

Deaths from ischemic heart disease or hypertensive diseases jumped 139% and 164%, respectively, between March 18, 2020, and June 2, 2020.

More modest increases in deaths were seen in the remainder of New York state, New Jersey, Michigan and Illinois, while Massachusetts and Louisiana did not see a change in cardiovascular deaths.

Several studies from different parts of the world have indicated a 40%-50% drop in hospitalization for myocardial infarction in the initial months of the pandemic, said Dr. Wadhera in an interview.

“We wanted to understand where did all the heart attacks go? And we worried that patients with urgent heart conditions were not seeking the medical care they needed. I think our data suggest that this may have been the case,” reported Dr. Wadhera.  

“This very much reflects the reality of what we’re seeing on the ground,” he told this news organization. “After the initial surge ended, when hospital volumes began to return to normal, we saw patients come into the hospital who clearly had a heart attack during the surge months – and were now experiencing complications of that event – because they had initially not come into the hospital due to concerns about exposure to the virus.”

A limitation of their data, he stressed, is whether some deaths coded as CVD deaths were really deaths from undiagnosed COVID-19. “It’s possible that some portion of the increased deaths we observed really reflect the cardiovascular complications of undiagnosed COVID-19, because we know that testing was quite limited during the early first surge of cases.”

“I think that basically three factors – patients avoiding the health care system because of fear of getting COVID, health care systems being strained and overwhelmed leading to the deferral of cardiovascular care and semi-elective procedures, and the cardiovascular complications of COVID-19 itself – all probably collectively contributed to the rise in cardiovascular deaths that we observed,” said Dr. Wadhera.

In an accompanying editorial, Michael N. Young, MD, Geisel School of Medicine at Dartmouth, Lebanon, N.H., and colleagues write that these data, taken together with an earlier study showing an increase in out-of-hospital cardiac arrests at the pandemic peak in New York City, “support the notion of excess fatalities due to unattended comorbid illnesses.” That said, attribution of death in the COVID era “remains problematic.”

In the second article, Andrew Einstein, MD, PhD, and the INCAPS COVID Investigators Group took a broader approach and looked at the impact of COVID-19 on cardiac diagnostic procedures in over 100 countries.

The INCAPS (International Atomic Energy Agency Noninvasive Cardiology Protocols Study) group has for the past decade conducted numerous studies addressing the use of best practices and worldwide practice variation in CVD diagnosis.

For this effort, they sent a survey link to INCAPS participants worldwide, ultimately including 909 survey responses from 108 countries in the final analysis.

Compared with March 2019, overall procedure volume decreased 42% in March 2020 and 64% in April 2020.

The greatest decreases were seen in stress testing (78%) and transesophageal echocardiography (76%), both procedures, noted Dr. Einstein, associated with a greater risk of aerosolization.

“Whether as we reset after COVID we return to the same place in terms of the use of cardiovascular diagnostic testing remains to be seen, but it certainly poses an opportunity to improve our utilization of various modes of testing,” said Dr. Einstein.

Using regression analysis, Dr. Einstein and colleagues were able to see that sites located in low-income and lower-middle-income countries saw an additional 22% reduction in cardiac procedures and less availability of personal protective equipment (PPE) and telehealth.

Fifty-two percent of survey respondents reported significant shortages of N95 masks early in the pandemic, with fewer issues in supplies of gloves, gowns, and face shields. Lower-income countries were more likely to face significant PPE shortages and less likely to be able to implement telehealth strategies to make up for reduced in-person care. PPE shortage itself, however, was not related to lower procedural volume on multivariable regression.

“It all really begs the question of whether there is more that the world can do to help out the developing world in terms of managing the pandemic in all its facets,” said Dr. Einstein in an interview, adding he was “shocked” to learn how difficult it was for some lower-income countries to get sufficient PPE.
 

Did shutdowns go too far?

Calling this a “remarkable study,” an editorial written by Darryl P. Leong, MBBS, PhD, John W. Eikelboom, MBBS, and Salim Yusuf, MBBS, DPhil, all from McMaster University, Hamilton, Ont., suggests that perhaps health systems in some places went too far in closing down during the first wave of the pandemic, naming specifically Canada, Eastern Europe, and Saudi Arabia as examples.

“Although these measures were taken to prepare for the worst, overwhelming numbers of patients with COVID-19 did not materialize during the first wave of the pandemic in these countries. It is possible that delaying so-called nonessential services may have been unnecessary and potentially harmful, because it likely led to delays in providing care for the treatment of serious non–COVID-19 illnesses.”

Since then, more experience and more data have largely allowed hospital systems to “tackle the ebb and flow” of COVID-19 cases in ways that limit shutdowns of important health services, they said.

Given the more pronounced effect in low- and middle-income countries, they stressed the need to focus resources on ways to promote prevention and treatment that do not rely on diagnostic procedures.

“This calls for more emphasis on developing efficient systems of telehealth, especially in poorer countries or in remote settings in all countries,” Dr. Leong and colleagues conclude.

Dr. Wadhera has reported research support from the National Heart, Lung, and Blood Institute, along with fellow senior author Robert W. Yeh, MD, MBA, who has also received personal fees and grants from several companies not related to the submitted work. Dr. Einstein, Dr. Leong, Dr. Eikelboom, and Dr. Yusuf have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Elite American soccer players have, on average, larger, thicker, and heavier hearts than the general population, according to a new study that provides clinicians with normative echocardiogram and electrocardiogram (ECG) cutoffs to use when assessing the heart health of competitive athletes.

Nikada/Getty Images

To provide these age- and sex-specific reference values, a team from Massachusetts General Hospital, Boston, led by Timothy W. Churchill, MD, and Aaron L. Baggish, MD, analyzed data from 122 female and 116 male soccer players from the American national teams preparing for World Cup play and undergoing FIFA-mandated preparticipation screening.

The athletes frequently exceeded normal echocardiographic ranges for left ventricular (LV) mass, volume, and wall thickness – structural cardiac parameters responsive to exercise-induced remodeling – but with none showing pathologic findings that might indicate the need to restrict their participation in the sport.

Almost one-third (30%) of female athletes and 41% of male athletes exceeded the American Society of Echocardiography’s upper limit of normal for LV wall thickness, with a measure greater than 12 mm seen in 12% of men and 1% of women.

The majority (51% of females and 59% of males) exceeded normal ranges for body surface area–indexed LV mass, with 77% and 68%, respectively, having LV volumes above the normal range.

Dr. Baggish stressed in an interview, however, that these data tell a story about healthy hearts, not at-risk hearts.

“These are the healthiest, highest-performing elite soccer players that we have in the United States, and this is really a look at how adaptive the heart can be, how much it can grow and change in size, shape, structure, and function in response to sport,” said Dr. Baggish.

The mean age of screened athletes was 20 years (range, 15-40 years). The majority of the female players were White (71%), whereas the male players were more evenly divided between Black (34%), Hispanic (33%), and White (32%).

Screening was performed at U.S. Soccer training sites by experienced clinicians affiliated with the Massachusetts General Hospital cardiovascular performance program.

Interestingly, the study debunks the idea that women, on average, have smaller chamber sizes. “When we did body-size correction, the men and women actually looked pretty similar with respect to their ability to adapt to strenuous exercise,” noted Dr. Baggish.

They did see, however, that women were more likely than men to have abnormal ECG findings. Male athletes showed a higher prevalence of “normal” training-related ECG findings, whereas female athletes were more likely to have abnormal ECG patterns (11.5% vs. 0.0% in the male cohort), most often pathologic T-wave inversions (TWI) confined to the anterior precordial lead distribution.

“This is important because ECGs are the most common screening tool used and we wanted to alert people to the fact that these women who showed some abnormalities on ECG went on to have a total healthy-looking echo, so a false-positive ECG is something to consider,” said Dr. Baggish.

This excess in anterior TWIs has been seen in previous studies and is thought to be benign, although the mechanism remains unclear. Four of the nine female athletes with abnormal ECG findings on initial evaluation had normalized on repeat testing 2-4 years later. Serial data were available in only a subset of athletes.
 

Clarity needed after COVID

The data, published recently in JAMA Cardiology, are particularly valuable these days given concern over the effects of COVID-19 on the heart and return-to-play recommendations.

“Athletes who have had COVID are being sent for echocardiograms before they can return to play to check for COVID-induced heart disease – which is real – but what we’re seeing is that there’s confusion out there in terms of what is a COVID-related abnormality and what is a normal, adapted athletic heart,” said Dr. Baggish.

“In this paper, we provide a dataset of normal values – generated before COVID was on anyone’s radar – to let cardiologists know what’s ‘big good’ and not ‘big bad.’ ”
 

More sport-specific data needed

“Although these numbers are still small, this dataset is an important step forward in our understanding of athletic adaptations,” said Matthew Martinez, MD, in an interview. “Many factors impact physiologic athletic changes, and the study aids in our understanding of gender- and sport-specific changes in athletes.”

Dr. Martinez, who is the director of sports cardiology at Atlantic Health–Morristown (N.J.) Medical Center and the Gagnon Cardiovascular Institute, also in Morristown, and the chair of Sports and Exercise Cardiology Section Leadership Council for the American College of Cardiology, noted the relatively young mean age of screened athletes.

“The data represent collegiate-age athletes with some older groups mixed in, but it does not represent older established elite athlete changes,” he said.

Mean age was 21 years in the female players but only 18 years in the males because the men’s senior national team failed to qualify for the World Cup during the study period and was therefore not screened. The authors acknowledged the “dearth of older men in the cohort.”

There is, overall, little age-, sport-, and sex-specific normative data for differentiating training-related cardiovascular adaptations from potentially pathologic phenotypes, wrote the authors.

It exists for men playing in the National Football League and for both sexes participating in the National Basketball Association, but most other studies have mixed the sports and focused mainly on men. That said, Dr. Baggish does not consider these data to be applicable to all elite athletes.

“Soccer is kind of in a league of its own with respect to the mixed amount of explosive or resistant and aerobic work that these athletes have to do, and also it’s the most popular sport in the world, so we really wanted to focus on them,” said Dr. Baggish.

Although the findings are perhaps applicable to athletes from other team sports characterized by explosive spurts of high-intensity activity – like hockey, lacrosse, and field hockey – he would not suggest they be applied to, say, long-distance runners, cyclists, or other sports that require a similar type of aerobic output.

Dr. Baggish reported no relevant conflict of interest. Dr. Martinez is league cardiologist for Major League Soccer.

A version of this article first appeared on Medscape.com.

Elite American soccer players have, on average, larger, thicker, and heavier hearts than the general population, according to a new study that provides clinicians with normative echocardiogram and electrocardiogram (ECG) cutoffs to use when assessing the heart health of competitive athletes.

Nikada/Getty Images

To provide these age- and sex-specific reference values, a team from Massachusetts General Hospital, Boston, led by Timothy W. Churchill, MD, and Aaron L. Baggish, MD, analyzed data from 122 female and 116 male soccer players from the American national teams preparing for World Cup play and undergoing FIFA-mandated preparticipation screening.

The athletes frequently exceeded normal echocardiographic ranges for left ventricular (LV) mass, volume, and wall thickness – structural cardiac parameters responsive to exercise-induced remodeling – but with none showing pathologic findings that might indicate the need to restrict their participation in the sport.

Almost one-third (30%) of female athletes and 41% of male athletes exceeded the American Society of Echocardiography’s upper limit of normal for LV wall thickness, with a measure greater than 12 mm seen in 12% of men and 1% of women.

The majority (51% of females and 59% of males) exceeded normal ranges for body surface area–indexed LV mass, with 77% and 68%, respectively, having LV volumes above the normal range.

Dr. Baggish stressed in an interview, however, that these data tell a story about healthy hearts, not at-risk hearts.

“These are the healthiest, highest-performing elite soccer players that we have in the United States, and this is really a look at how adaptive the heart can be, how much it can grow and change in size, shape, structure, and function in response to sport,” said Dr. Baggish.

The mean age of screened athletes was 20 years (range, 15-40 years). The majority of the female players were White (71%), whereas the male players were more evenly divided between Black (34%), Hispanic (33%), and White (32%).

Screening was performed at U.S. Soccer training sites by experienced clinicians affiliated with the Massachusetts General Hospital cardiovascular performance program.

Interestingly, the study debunks the idea that women, on average, have smaller chamber sizes. “When we did body-size correction, the men and women actually looked pretty similar with respect to their ability to adapt to strenuous exercise,” noted Dr. Baggish.

They did see, however, that women were more likely than men to have abnormal ECG findings. Male athletes showed a higher prevalence of “normal” training-related ECG findings, whereas female athletes were more likely to have abnormal ECG patterns (11.5% vs. 0.0% in the male cohort), most often pathologic T-wave inversions (TWI) confined to the anterior precordial lead distribution.

“This is important because ECGs are the most common screening tool used and we wanted to alert people to the fact that these women who showed some abnormalities on ECG went on to have a total healthy-looking echo, so a false-positive ECG is something to consider,” said Dr. Baggish.

This excess in anterior TWIs has been seen in previous studies and is thought to be benign, although the mechanism remains unclear. Four of the nine female athletes with abnormal ECG findings on initial evaluation had normalized on repeat testing 2-4 years later. Serial data were available in only a subset of athletes.
 

Clarity needed after COVID

The data, published recently in JAMA Cardiology, are particularly valuable these days given concern over the effects of COVID-19 on the heart and return-to-play recommendations.

“Athletes who have had COVID are being sent for echocardiograms before they can return to play to check for COVID-induced heart disease – which is real – but what we’re seeing is that there’s confusion out there in terms of what is a COVID-related abnormality and what is a normal, adapted athletic heart,” said Dr. Baggish.

“In this paper, we provide a dataset of normal values – generated before COVID was on anyone’s radar – to let cardiologists know what’s ‘big good’ and not ‘big bad.’ ”
 

More sport-specific data needed

“Although these numbers are still small, this dataset is an important step forward in our understanding of athletic adaptations,” said Matthew Martinez, MD, in an interview. “Many factors impact physiologic athletic changes, and the study aids in our understanding of gender- and sport-specific changes in athletes.”

Dr. Martinez, who is the director of sports cardiology at Atlantic Health–Morristown (N.J.) Medical Center and the Gagnon Cardiovascular Institute, also in Morristown, and the chair of Sports and Exercise Cardiology Section Leadership Council for the American College of Cardiology, noted the relatively young mean age of screened athletes.

“The data represent collegiate-age athletes with some older groups mixed in, but it does not represent older established elite athlete changes,” he said.

Mean age was 21 years in the female players but only 18 years in the males because the men’s senior national team failed to qualify for the World Cup during the study period and was therefore not screened. The authors acknowledged the “dearth of older men in the cohort.”

There is, overall, little age-, sport-, and sex-specific normative data for differentiating training-related cardiovascular adaptations from potentially pathologic phenotypes, wrote the authors.

It exists for men playing in the National Football League and for both sexes participating in the National Basketball Association, but most other studies have mixed the sports and focused mainly on men. That said, Dr. Baggish does not consider these data to be applicable to all elite athletes.

“Soccer is kind of in a league of its own with respect to the mixed amount of explosive or resistant and aerobic work that these athletes have to do, and also it’s the most popular sport in the world, so we really wanted to focus on them,” said Dr. Baggish.

Although the findings are perhaps applicable to athletes from other team sports characterized by explosive spurts of high-intensity activity – like hockey, lacrosse, and field hockey – he would not suggest they be applied to, say, long-distance runners, cyclists, or other sports that require a similar type of aerobic output.

Dr. Baggish reported no relevant conflict of interest. Dr. Martinez is league cardiologist for Major League Soccer.

A version of this article first appeared on Medscape.com.

Elite American soccer players have, on average, larger, thicker, and heavier hearts than the general population, according to a new study that provides clinicians with normative echocardiogram and electrocardiogram (ECG) cutoffs to use when assessing the heart health of competitive athletes.

Nikada/Getty Images

To provide these age- and sex-specific reference values, a team from Massachusetts General Hospital, Boston, led by Timothy W. Churchill, MD, and Aaron L. Baggish, MD, analyzed data from 122 female and 116 male soccer players from the American national teams preparing for World Cup play and undergoing FIFA-mandated preparticipation screening.

The athletes frequently exceeded normal echocardiographic ranges for left ventricular (LV) mass, volume, and wall thickness – structural cardiac parameters responsive to exercise-induced remodeling – but with none showing pathologic findings that might indicate the need to restrict their participation in the sport.

Almost one-third (30%) of female athletes and 41% of male athletes exceeded the American Society of Echocardiography’s upper limit of normal for LV wall thickness, with a measure greater than 12 mm seen in 12% of men and 1% of women.

The majority (51% of females and 59% of males) exceeded normal ranges for body surface area–indexed LV mass, with 77% and 68%, respectively, having LV volumes above the normal range.

Dr. Baggish stressed in an interview, however, that these data tell a story about healthy hearts, not at-risk hearts.

“These are the healthiest, highest-performing elite soccer players that we have in the United States, and this is really a look at how adaptive the heart can be, how much it can grow and change in size, shape, structure, and function in response to sport,” said Dr. Baggish.

The mean age of screened athletes was 20 years (range, 15-40 years). The majority of the female players were White (71%), whereas the male players were more evenly divided between Black (34%), Hispanic (33%), and White (32%).

Screening was performed at U.S. Soccer training sites by experienced clinicians affiliated with the Massachusetts General Hospital cardiovascular performance program.

Interestingly, the study debunks the idea that women, on average, have smaller chamber sizes. “When we did body-size correction, the men and women actually looked pretty similar with respect to their ability to adapt to strenuous exercise,” noted Dr. Baggish.

They did see, however, that women were more likely than men to have abnormal ECG findings. Male athletes showed a higher prevalence of “normal” training-related ECG findings, whereas female athletes were more likely to have abnormal ECG patterns (11.5% vs. 0.0% in the male cohort), most often pathologic T-wave inversions (TWI) confined to the anterior precordial lead distribution.

“This is important because ECGs are the most common screening tool used and we wanted to alert people to the fact that these women who showed some abnormalities on ECG went on to have a total healthy-looking echo, so a false-positive ECG is something to consider,” said Dr. Baggish.

This excess in anterior TWIs has been seen in previous studies and is thought to be benign, although the mechanism remains unclear. Four of the nine female athletes with abnormal ECG findings on initial evaluation had normalized on repeat testing 2-4 years later. Serial data were available in only a subset of athletes.
 

Clarity needed after COVID

The data, published recently in JAMA Cardiology, are particularly valuable these days given concern over the effects of COVID-19 on the heart and return-to-play recommendations.

“Athletes who have had COVID are being sent for echocardiograms before they can return to play to check for COVID-induced heart disease – which is real – but what we’re seeing is that there’s confusion out there in terms of what is a COVID-related abnormality and what is a normal, adapted athletic heart,” said Dr. Baggish.

“In this paper, we provide a dataset of normal values – generated before COVID was on anyone’s radar – to let cardiologists know what’s ‘big good’ and not ‘big bad.’ ”
 

More sport-specific data needed

“Although these numbers are still small, this dataset is an important step forward in our understanding of athletic adaptations,” said Matthew Martinez, MD, in an interview. “Many factors impact physiologic athletic changes, and the study aids in our understanding of gender- and sport-specific changes in athletes.”

Dr. Martinez, who is the director of sports cardiology at Atlantic Health–Morristown (N.J.) Medical Center and the Gagnon Cardiovascular Institute, also in Morristown, and the chair of Sports and Exercise Cardiology Section Leadership Council for the American College of Cardiology, noted the relatively young mean age of screened athletes.

“The data represent collegiate-age athletes with some older groups mixed in, but it does not represent older established elite athlete changes,” he said.

Mean age was 21 years in the female players but only 18 years in the males because the men’s senior national team failed to qualify for the World Cup during the study period and was therefore not screened. The authors acknowledged the “dearth of older men in the cohort.”

There is, overall, little age-, sport-, and sex-specific normative data for differentiating training-related cardiovascular adaptations from potentially pathologic phenotypes, wrote the authors.

It exists for men playing in the National Football League and for both sexes participating in the National Basketball Association, but most other studies have mixed the sports and focused mainly on men. That said, Dr. Baggish does not consider these data to be applicable to all elite athletes.

“Soccer is kind of in a league of its own with respect to the mixed amount of explosive or resistant and aerobic work that these athletes have to do, and also it’s the most popular sport in the world, so we really wanted to focus on them,” said Dr. Baggish.

Although the findings are perhaps applicable to athletes from other team sports characterized by explosive spurts of high-intensity activity – like hockey, lacrosse, and field hockey – he would not suggest they be applied to, say, long-distance runners, cyclists, or other sports that require a similar type of aerobic output.

Dr. Baggish reported no relevant conflict of interest. Dr. Martinez is league cardiologist for Major League Soccer.

A version of this article first appeared on Medscape.com.

After a patient’s face was burned in the outline of a mask worn during a 3-Tesla MRI neck scan, the US Food and Drug Administration (FDA) cautioned that face masks containing metal can heat to unsafe temperatures during scanning.

Clinicians have known for years to ask patients to remove all metal jewelry and other objects prior to an MRI. The widespread wearing of face masks during the COVID-19 pandemic, however, adds one more consideration to the list.

The FDA’s December 7 safety communication applies to surgical and nonsurgical face masks and respirators.

The injury risk relates to rapid heating of metal components. Many face masks contain a nose wire or metal clip that helps the product conform to the face. Some masks contain metal nanoparticles, while others feature antimicrobial coatings with silver or copper. Each of these products should be avoided during MRI scanning. Also watch out for staples on headbands, the FDA warned.

If the metal content of a face mask is unknown, the FDA suggests providing the patient with a facial covering that is known not to contain any metal.

Robert E. Watson Jr, MD, PhD, chair of the American College of Radiology (ACR) Committee on MR Safety, agreed. He recommended that facilities “provide patients with masks known to be MRI-safe and not permit patient-owned masks in the MRI.”

Watson suggested this strategy at a time when face masks are required.

“COVID-19 safety protocols require that patients wear masks when being scanned, to decrease infection risk to MRI staff, decrease risk of contaminating the MRI scanner, and to protect themselves from infection,” he told Medscape Medical News. “Any conducting metal that enters the MRI machine is at risk of heating due to the radiofrequency fields inherent to image generation.”

Adverse events related to the metal components of a face mask should be reported to the FDA using the MedWatch voluntary reporting form. In addition, healthcare providers subject to the FDA user facility reporting requirements should follow procedures at their facilities to report such events.

This article first appeared on Medscape.com.

After a patient’s face was burned in the outline of a mask worn during a 3-Tesla MRI neck scan, the US Food and Drug Administration (FDA) cautioned that face masks containing metal can heat to unsafe temperatures during scanning.

Clinicians have known for years to ask patients to remove all metal jewelry and other objects prior to an MRI. The widespread wearing of face masks during the COVID-19 pandemic, however, adds one more consideration to the list.

The FDA’s December 7 safety communication applies to surgical and nonsurgical face masks and respirators.

The injury risk relates to rapid heating of metal components. Many face masks contain a nose wire or metal clip that helps the product conform to the face. Some masks contain metal nanoparticles, while others feature antimicrobial coatings with silver or copper. Each of these products should be avoided during MRI scanning. Also watch out for staples on headbands, the FDA warned.

If the metal content of a face mask is unknown, the FDA suggests providing the patient with a facial covering that is known not to contain any metal.

Robert E. Watson Jr, MD, PhD, chair of the American College of Radiology (ACR) Committee on MR Safety, agreed. He recommended that facilities “provide patients with masks known to be MRI-safe and not permit patient-owned masks in the MRI.”

Watson suggested this strategy at a time when face masks are required.

“COVID-19 safety protocols require that patients wear masks when being scanned, to decrease infection risk to MRI staff, decrease risk of contaminating the MRI scanner, and to protect themselves from infection,” he told Medscape Medical News. “Any conducting metal that enters the MRI machine is at risk of heating due to the radiofrequency fields inherent to image generation.”

Adverse events related to the metal components of a face mask should be reported to the FDA using the MedWatch voluntary reporting form. In addition, healthcare providers subject to the FDA user facility reporting requirements should follow procedures at their facilities to report such events.

This article first appeared on Medscape.com.

After a patient’s face was burned in the outline of a mask worn during a 3-Tesla MRI neck scan, the US Food and Drug Administration (FDA) cautioned that face masks containing metal can heat to unsafe temperatures during scanning.

Clinicians have known for years to ask patients to remove all metal jewelry and other objects prior to an MRI. The widespread wearing of face masks during the COVID-19 pandemic, however, adds one more consideration to the list.

The FDA’s December 7 safety communication applies to surgical and nonsurgical face masks and respirators.

The injury risk relates to rapid heating of metal components. Many face masks contain a nose wire or metal clip that helps the product conform to the face. Some masks contain metal nanoparticles, while others feature antimicrobial coatings with silver or copper. Each of these products should be avoided during MRI scanning. Also watch out for staples on headbands, the FDA warned.

If the metal content of a face mask is unknown, the FDA suggests providing the patient with a facial covering that is known not to contain any metal.

Robert E. Watson Jr, MD, PhD, chair of the American College of Radiology (ACR) Committee on MR Safety, agreed. He recommended that facilities “provide patients with masks known to be MRI-safe and not permit patient-owned masks in the MRI.”

Watson suggested this strategy at a time when face masks are required.

“COVID-19 safety protocols require that patients wear masks when being scanned, to decrease infection risk to MRI staff, decrease risk of contaminating the MRI scanner, and to protect themselves from infection,” he told Medscape Medical News. “Any conducting metal that enters the MRI machine is at risk of heating due to the radiofrequency fields inherent to image generation.”

Adverse events related to the metal components of a face mask should be reported to the FDA using the MedWatch voluntary reporting form. In addition, healthcare providers subject to the FDA user facility reporting requirements should follow procedures at their facilities to report such events.

This article first appeared on Medscape.com.