Cardiology

Muscle symptoms, such as cramps, pain, and other discomfort many patients blame on their recently prescribed statin usually aren’t caused by the drug at all, but by the expectation of such adverse effects, conclude researchers behind the randomized SAMSON trial, now fully published .

It’s common for patients to stop taking their statin because of muscle pain and their belief that the drug itself is to blame. That can sometimes be true, but the SAMSON trial, owing to its unusual design, makes a strong case that such symptoms are usually a nocebo effect.

That is, most statin-related muscle symptoms are likely “driven by the act of taking tablets rather than whether the tablets contain a statin,” concludes the report, which appears in the September 21 issue of the Journal of the American College of Cardiology, with lead authors James P. Howard, PhD, and Frances A. Wood, MPhil, Imperial College London.

SAMSON had been presented at the American Heart Association Scientific Sessions 2020 virtual meeting, covered at the time by this news organization, and simultaneously published in abbreviated form as correspondence in the New England Journal of Medicine.

“SAMSON suggests that the bulk of statin-related intolerable side effects arise from the taking of a tablet, not from statin therapy per se,” agrees an editorial accompanying the new publication.

“The study also demonstrates that the informal experimentation of stopping and restarting a statin to evaluate symptom resolution and reinduction without use of a placebo leads to nocebo symptoms misattributed to the statin,” writes Peter P. Toth, MD, PhD, Johns Hopkins University, Baltimore.

Statin intolerance, he continues, “warrants considerable further investigation, because it undermines standard of care for a very large number of patients worldwide,” leaving them vulnerable to atherosclerotic cardiovascular disease events. “Aches and pains are a fact of life; just because a patient has them does not mean they should be attributed to their statin.”

SAMSON assigned 35 men and 25 women to take atorvastatin 20 mg/day, its matching placebo, or neither pill each for 1 month in randomly alternating order for 12 months, with double-blinding, such that each of the three regimens was maintained for a total of 4 months.

The patients, 77% of whom were prescribed statins for primary prevention and all of whom had a history of stopping the drugs because of adverse effects, documented the severity of any perceived adverse effects on a smartphone app, with a “symptom score” ranging from 0 to 100.

The symptom score averaged 8.0 in months when no tablet was taken, but it was much higher in other months: 15.4 in placebo-pill months and 16.3 in months when atorvastatin was taken. The no-tablet score was significantly lower (P < .001) than either of the two other scores, which themselves were not significantly different from each other.

Eleven patients were unable to complete all 12 one-month segments of the trial, including five because of severe symptoms, but discontinuation was no more likely to occur in the atorvastatin group than in the placebo group.

The authors calculated an overall 0.90 “nocebo ratio” for the study, defined as the difference between symptom intensity on placebo and on no pill, divided by the difference between symptom intensity on atorvastatin and on no pill.

That means, the authors propose, that 90% of the symptom burden felt by patients receiving atorvastatin was also felt on the placebo pill and could be attributed to the nocebo effect.

“Prompt onset and offset of symptoms after starting and stopping tablets is often interpreted by patients and clinicians as evidence of causation. Our data indicate that this is true,” the authors write, but “the causation is from taking a tablet, rather than from the tablet being a statin.”

SAMSON was funded by the British Heart Foundation and supported by the National Institute for Health Research Imperial Biomedical Research Centre and the Imperial Clinical Trials Unit. Dr. Howard is supported by the Wellcome Trust. Dr. Wood declared no conflicts. Disclosures for the other authors are in the report. Dr. Toth discloses serving as a consultant to Amarin, Amgen, AstraZeneca, nio89, Kowa, Merck, Resverlogix, and Theravance; and serving on a speaker’s bureau for Amarin, Amgen, Esperion, and NovoNordisk.

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

Muscle symptoms, such as cramps, pain, and other discomfort many patients blame on their recently prescribed statin usually aren’t caused by the drug at all, but by the expectation of such adverse effects, conclude researchers behind the randomized SAMSON trial, now fully published .

It’s common for patients to stop taking their statin because of muscle pain and their belief that the drug itself is to blame. That can sometimes be true, but the SAMSON trial, owing to its unusual design, makes a strong case that such symptoms are usually a nocebo effect.

That is, most statin-related muscle symptoms are likely “driven by the act of taking tablets rather than whether the tablets contain a statin,” concludes the report, which appears in the September 21 issue of the Journal of the American College of Cardiology, with lead authors James P. Howard, PhD, and Frances A. Wood, MPhil, Imperial College London.

SAMSON had been presented at the American Heart Association Scientific Sessions 2020 virtual meeting, covered at the time by this news organization, and simultaneously published in abbreviated form as correspondence in the New England Journal of Medicine.

“SAMSON suggests that the bulk of statin-related intolerable side effects arise from the taking of a tablet, not from statin therapy per se,” agrees an editorial accompanying the new publication.

“The study also demonstrates that the informal experimentation of stopping and restarting a statin to evaluate symptom resolution and reinduction without use of a placebo leads to nocebo symptoms misattributed to the statin,” writes Peter P. Toth, MD, PhD, Johns Hopkins University, Baltimore.

Statin intolerance, he continues, “warrants considerable further investigation, because it undermines standard of care for a very large number of patients worldwide,” leaving them vulnerable to atherosclerotic cardiovascular disease events. “Aches and pains are a fact of life; just because a patient has them does not mean they should be attributed to their statin.”

SAMSON assigned 35 men and 25 women to take atorvastatin 20 mg/day, its matching placebo, or neither pill each for 1 month in randomly alternating order for 12 months, with double-blinding, such that each of the three regimens was maintained for a total of 4 months.

The patients, 77% of whom were prescribed statins for primary prevention and all of whom had a history of stopping the drugs because of adverse effects, documented the severity of any perceived adverse effects on a smartphone app, with a “symptom score” ranging from 0 to 100.

The symptom score averaged 8.0 in months when no tablet was taken, but it was much higher in other months: 15.4 in placebo-pill months and 16.3 in months when atorvastatin was taken. The no-tablet score was significantly lower (P < .001) than either of the two other scores, which themselves were not significantly different from each other.

Eleven patients were unable to complete all 12 one-month segments of the trial, including five because of severe symptoms, but discontinuation was no more likely to occur in the atorvastatin group than in the placebo group.

The authors calculated an overall 0.90 “nocebo ratio” for the study, defined as the difference between symptom intensity on placebo and on no pill, divided by the difference between symptom intensity on atorvastatin and on no pill.

That means, the authors propose, that 90% of the symptom burden felt by patients receiving atorvastatin was also felt on the placebo pill and could be attributed to the nocebo effect.

“Prompt onset and offset of symptoms after starting and stopping tablets is often interpreted by patients and clinicians as evidence of causation. Our data indicate that this is true,” the authors write, but “the causation is from taking a tablet, rather than from the tablet being a statin.”

SAMSON was funded by the British Heart Foundation and supported by the National Institute for Health Research Imperial Biomedical Research Centre and the Imperial Clinical Trials Unit. Dr. Howard is supported by the Wellcome Trust. Dr. Wood declared no conflicts. Disclosures for the other authors are in the report. Dr. Toth discloses serving as a consultant to Amarin, Amgen, AstraZeneca, nio89, Kowa, Merck, Resverlogix, and Theravance; and serving on a speaker’s bureau for Amarin, Amgen, Esperion, and NovoNordisk.

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

Muscle symptoms, such as cramps, pain, and other discomfort many patients blame on their recently prescribed statin usually aren’t caused by the drug at all, but by the expectation of such adverse effects, conclude researchers behind the randomized SAMSON trial, now fully published .

It’s common for patients to stop taking their statin because of muscle pain and their belief that the drug itself is to blame. That can sometimes be true, but the SAMSON trial, owing to its unusual design, makes a strong case that such symptoms are usually a nocebo effect.

That is, most statin-related muscle symptoms are likely “driven by the act of taking tablets rather than whether the tablets contain a statin,” concludes the report, which appears in the September 21 issue of the Journal of the American College of Cardiology, with lead authors James P. Howard, PhD, and Frances A. Wood, MPhil, Imperial College London.

SAMSON had been presented at the American Heart Association Scientific Sessions 2020 virtual meeting, covered at the time by this news organization, and simultaneously published in abbreviated form as correspondence in the New England Journal of Medicine.

“SAMSON suggests that the bulk of statin-related intolerable side effects arise from the taking of a tablet, not from statin therapy per se,” agrees an editorial accompanying the new publication.

“The study also demonstrates that the informal experimentation of stopping and restarting a statin to evaluate symptom resolution and reinduction without use of a placebo leads to nocebo symptoms misattributed to the statin,” writes Peter P. Toth, MD, PhD, Johns Hopkins University, Baltimore.

Statin intolerance, he continues, “warrants considerable further investigation, because it undermines standard of care for a very large number of patients worldwide,” leaving them vulnerable to atherosclerotic cardiovascular disease events. “Aches and pains are a fact of life; just because a patient has them does not mean they should be attributed to their statin.”

SAMSON assigned 35 men and 25 women to take atorvastatin 20 mg/day, its matching placebo, or neither pill each for 1 month in randomly alternating order for 12 months, with double-blinding, such that each of the three regimens was maintained for a total of 4 months.

The patients, 77% of whom were prescribed statins for primary prevention and all of whom had a history of stopping the drugs because of adverse effects, documented the severity of any perceived adverse effects on a smartphone app, with a “symptom score” ranging from 0 to 100.

The symptom score averaged 8.0 in months when no tablet was taken, but it was much higher in other months: 15.4 in placebo-pill months and 16.3 in months when atorvastatin was taken. The no-tablet score was significantly lower (P < .001) than either of the two other scores, which themselves were not significantly different from each other.

Eleven patients were unable to complete all 12 one-month segments of the trial, including five because of severe symptoms, but discontinuation was no more likely to occur in the atorvastatin group than in the placebo group.

The authors calculated an overall 0.90 “nocebo ratio” for the study, defined as the difference between symptom intensity on placebo and on no pill, divided by the difference between symptom intensity on atorvastatin and on no pill.

That means, the authors propose, that 90% of the symptom burden felt by patients receiving atorvastatin was also felt on the placebo pill and could be attributed to the nocebo effect.

“Prompt onset and offset of symptoms after starting and stopping tablets is often interpreted by patients and clinicians as evidence of causation. Our data indicate that this is true,” the authors write, but “the causation is from taking a tablet, rather than from the tablet being a statin.”

SAMSON was funded by the British Heart Foundation and supported by the National Institute for Health Research Imperial Biomedical Research Centre and the Imperial Clinical Trials Unit. Dr. Howard is supported by the Wellcome Trust. Dr. Wood declared no conflicts. Disclosures for the other authors are in the report. Dr. Toth discloses serving as a consultant to Amarin, Amgen, AstraZeneca, nio89, Kowa, Merck, Resverlogix, and Theravance; and serving on a speaker’s bureau for Amarin, Amgen, Esperion, and NovoNordisk.

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

Poor lung function appears to be a stronger marker of risk for sudden cardiac death than for a survivable first coronary event, results of a prospective population-based study suggest.

Among 28,584 adults with no history of acute coronary events who were followed over 4 decades, every standard deviation decrease in forced expiratory volume in 1 second (FEV₁) was associated with a 23% increase in risk for sudden cardiac death, reported Suneela Zaigham, PhD, a cardiovascular epidemiology fellow at the University of Lund, Sweden, and colleagues.

“Our main findings and subsequent conclusions are that low FEV₁ is associated with both sudden cardiac death and nonfatal coronary events but is consistently more strongly associated with future sudden cardiac death,” Dr. Zaigham said in a narrated poster presented at the European Respiratory Society (ERS) 2021 International Congress, which was held online.

“We propose that measurement with spirometry in early life could aid in the risk stratification of future sudden cardiac death, and our results support the use of spirometry for cardiovascular risk assessment,” she said.

Marc Humbert, MD, PhD, professor of respiratory medicine at Université Paris–Saclay, who was not involved in the study, said that “this is something we can measure fairly easily, meaning that lung function could be used as part of a screening tool.

“We need to do more research to understand the links between lung function and sudden cardiac death and to investigate whether we can use lung function tests to help prevent deaths in the future,” he said.
 

Fatal vs. nonfatal events

It is well known that poor lung function is a strong predictor of future coronary events, but it was unknown whether patterns of lung impairment differ in their ability to predict future nonfatal coronary events or sudden cardiac death, Dr. Zaigham said.

To see whether measurable differences in lung function could predict risk for both fatal and nonfatal coronary events, the investigators studied 28,584 middle-aged residents of Malmö, Sweden. Baseline spirometry test results were available for all study participants.

The patients were followed for approximately 40 years for sudden cardiac death, defined as death on the day of a coronary event, or nonfatal events, defined as survival for at least 24 hours after an event.

Dr. Zaigham and colleagues used a modified version of Lunn McNeil’s competing risks method to create Cox regression models.

Results of an analysis that was adjusted for potential confounding factors indicated that one standard deviation reduction in FEV₁ was associated with a hazard ratio (HR) for sudden cardiac death of 1.23 (95% confidence interval, 1.15-1.31). In contrast, one standard deviation in FEV₁ was associated with a lower but still significant risk for nonfatal events, with an HR of 1.08 (95% CI, 1.04-1.13; P for equal associations = .002).

The results remained significant among participants who had never smoked, with an HR for sudden cardiac death of 1.34 (95% CI, 1.15-1.55) and for nonfatal events of 1.11 (95% CI, 1.02-1.21; P for equal associations = .038).

“This study suggests a link between lung health and sudden cardiac death. It shows a higher risk of fatal than nonfatal coronary events even in people whose lung function is moderately lower but may still be within a normal range,” Dr. Humbert said.

The study was supported by the Swedish Heart-Lung Foundation. Dr. Zaigham and Dr. Humbert reported having no relevant financial relationships.

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

Poor lung function appears to be a stronger marker of risk for sudden cardiac death than for a survivable first coronary event, results of a prospective population-based study suggest.

Among 28,584 adults with no history of acute coronary events who were followed over 4 decades, every standard deviation decrease in forced expiratory volume in 1 second (FEV₁) was associated with a 23% increase in risk for sudden cardiac death, reported Suneela Zaigham, PhD, a cardiovascular epidemiology fellow at the University of Lund, Sweden, and colleagues.

“Our main findings and subsequent conclusions are that low FEV₁ is associated with both sudden cardiac death and nonfatal coronary events but is consistently more strongly associated with future sudden cardiac death,” Dr. Zaigham said in a narrated poster presented at the European Respiratory Society (ERS) 2021 International Congress, which was held online.

“We propose that measurement with spirometry in early life could aid in the risk stratification of future sudden cardiac death, and our results support the use of spirometry for cardiovascular risk assessment,” she said.

Marc Humbert, MD, PhD, professor of respiratory medicine at Université Paris–Saclay, who was not involved in the study, said that “this is something we can measure fairly easily, meaning that lung function could be used as part of a screening tool.

“We need to do more research to understand the links between lung function and sudden cardiac death and to investigate whether we can use lung function tests to help prevent deaths in the future,” he said.
 

Fatal vs. nonfatal events

It is well known that poor lung function is a strong predictor of future coronary events, but it was unknown whether patterns of lung impairment differ in their ability to predict future nonfatal coronary events or sudden cardiac death, Dr. Zaigham said.

To see whether measurable differences in lung function could predict risk for both fatal and nonfatal coronary events, the investigators studied 28,584 middle-aged residents of Malmö, Sweden. Baseline spirometry test results were available for all study participants.

The patients were followed for approximately 40 years for sudden cardiac death, defined as death on the day of a coronary event, or nonfatal events, defined as survival for at least 24 hours after an event.

Dr. Zaigham and colleagues used a modified version of Lunn McNeil’s competing risks method to create Cox regression models.

Results of an analysis that was adjusted for potential confounding factors indicated that one standard deviation reduction in FEV₁ was associated with a hazard ratio (HR) for sudden cardiac death of 1.23 (95% confidence interval, 1.15-1.31). In contrast, one standard deviation in FEV₁ was associated with a lower but still significant risk for nonfatal events, with an HR of 1.08 (95% CI, 1.04-1.13; P for equal associations = .002).

The results remained significant among participants who had never smoked, with an HR for sudden cardiac death of 1.34 (95% CI, 1.15-1.55) and for nonfatal events of 1.11 (95% CI, 1.02-1.21; P for equal associations = .038).

“This study suggests a link between lung health and sudden cardiac death. It shows a higher risk of fatal than nonfatal coronary events even in people whose lung function is moderately lower but may still be within a normal range,” Dr. Humbert said.

The study was supported by the Swedish Heart-Lung Foundation. Dr. Zaigham and Dr. Humbert reported having no relevant financial relationships.

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

Poor lung function appears to be a stronger marker of risk for sudden cardiac death than for a survivable first coronary event, results of a prospective population-based study suggest.

Among 28,584 adults with no history of acute coronary events who were followed over 4 decades, every standard deviation decrease in forced expiratory volume in 1 second (FEV₁) was associated with a 23% increase in risk for sudden cardiac death, reported Suneela Zaigham, PhD, a cardiovascular epidemiology fellow at the University of Lund, Sweden, and colleagues.

“Our main findings and subsequent conclusions are that low FEV₁ is associated with both sudden cardiac death and nonfatal coronary events but is consistently more strongly associated with future sudden cardiac death,” Dr. Zaigham said in a narrated poster presented at the European Respiratory Society (ERS) 2021 International Congress, which was held online.

“We propose that measurement with spirometry in early life could aid in the risk stratification of future sudden cardiac death, and our results support the use of spirometry for cardiovascular risk assessment,” she said.

Marc Humbert, MD, PhD, professor of respiratory medicine at Université Paris–Saclay, who was not involved in the study, said that “this is something we can measure fairly easily, meaning that lung function could be used as part of a screening tool.

“We need to do more research to understand the links between lung function and sudden cardiac death and to investigate whether we can use lung function tests to help prevent deaths in the future,” he said.
 

Fatal vs. nonfatal events

It is well known that poor lung function is a strong predictor of future coronary events, but it was unknown whether patterns of lung impairment differ in their ability to predict future nonfatal coronary events or sudden cardiac death, Dr. Zaigham said.

To see whether measurable differences in lung function could predict risk for both fatal and nonfatal coronary events, the investigators studied 28,584 middle-aged residents of Malmö, Sweden. Baseline spirometry test results were available for all study participants.

The patients were followed for approximately 40 years for sudden cardiac death, defined as death on the day of a coronary event, or nonfatal events, defined as survival for at least 24 hours after an event.

Dr. Zaigham and colleagues used a modified version of Lunn McNeil’s competing risks method to create Cox regression models.

Results of an analysis that was adjusted for potential confounding factors indicated that one standard deviation reduction in FEV₁ was associated with a hazard ratio (HR) for sudden cardiac death of 1.23 (95% confidence interval, 1.15-1.31). In contrast, one standard deviation in FEV₁ was associated with a lower but still significant risk for nonfatal events, with an HR of 1.08 (95% CI, 1.04-1.13; P for equal associations = .002).

The results remained significant among participants who had never smoked, with an HR for sudden cardiac death of 1.34 (95% CI, 1.15-1.55) and for nonfatal events of 1.11 (95% CI, 1.02-1.21; P for equal associations = .038).

“This study suggests a link between lung health and sudden cardiac death. It shows a higher risk of fatal than nonfatal coronary events even in people whose lung function is moderately lower but may still be within a normal range,” Dr. Humbert said.

The study was supported by the Swedish Heart-Lung Foundation. Dr. Zaigham and Dr. Humbert reported having no relevant financial relationships.

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

Treatment with acetylsalicylic acid (ASA) or heparin is associated with an increased risk for symptomatic intracranial hemorrhage (sICH) in patients with ischemic stroke who are undergoing endovascular therapy (EVT), new data show.

In this population, ASA and heparin are each associated with an approximately doubled risk for sICH when administered during EVT.

“We did not find any evidence for a beneficial effect on functional outcome,” investigator Wouter van der Steen, MD, research physician and PhD student at Erasmus University Medical Center, Rotterdam, the Netherlands, told this news organization. The possibility that a positive effect would be observed if the trial were continued was considered negligible, he added.

The researchers stopped the trial for safety reasons and recommend avoiding the evaluated dosages of both medications during EVT for ischemic stroke, said Dr. van der Steen.

He presented the findings from the MR CLEAN-MED trial at the European Stroke Organisation Conference (ESOC) 2021, which was held online.
 

Trial stopped for safety

Previous research has supported the safety and efficacy of EVT for ischemic stroke. Still, more than 30% of patients do not recover, despite fast and complete recanalization. Incomplete microvascular reperfusion (IMR) could explain this incomplete recovery, the researchers note.

Microthrombi, which occlude distal vessels, and neutrophil extracellular traps can cause IMR. This problem can be reduced through treatment with ASA, which has an antithrombotic effect, or with heparin, which dissolves neutrophil extracellular traps, they add. Although these drugs are associated with good clinical outcomes, they entail an increased risk for sICH.

The investigators conducted the multicenter, randomized controlled MR CLEAN-MED trial to evaluate the effect of intravenous (IV) ASA and heparin, alone or in combination, during EVT for acute ischemic stroke. Treatment was open label, but outcome assessment was blinded. Eligible participants were adults with a National Institutes of Health Stroke Scale (NIHSS) score of greater than or equal to 2 and an anterior circulation large-vessel occlusion for whom EVT could be initiated in fewer than 6 hours.

Investigators randomly assigned patients to receive or not to receive ASA. Within each of these two treatment groups, patients were randomly assigned to receive no heparin, low-dose heparin, or moderate-dose heparin.

ASA was given in a loading dose of 300 mg. Patients who were given low-dose heparin received a loading dose of 5,000 IU followed by 500 IU/h for 6 hours. Patients who received moderate-dose heparin were given a loading dose of 5,000 IU followed by 1,250 IU/h for 6 hours.

The study’s primary outcome was Modified Rankin Scale (mRS) score at 90 days. Secondary outcomes were NIHSS score at 24 hours, NIHSS score at 5 to 7 days, and recanalization grade at 24 hours on CT angiography or MRI. The primary safety outcomes were sICH and death within 90 days.

An independent, unblinded data and safety monitoring board (DSMB) assessed the risk for the primary safety outcomes throughout the trial. The board performed interim analyses of safety and efficacy for every 300 patients.

After the fourth safety assessment, the DSMB recommended that enrollment in the moderate-dose heparin arm be discontinued for safety reasons. Enrollment in other arms continued.

After the second interim analysis, the DSMB advised that the trial steering committee be unblinded to decide whether to stop or continue the trial. The steering committee decided to stop the trial for reasons of safety.
 

Increased risk for sICH

In all, 628 patients were included in the study. The ASA groups included 310 patients, and the no-ASA groups included 318 patients. In all, 332 participants received heparin, and 296 received no heparin.

The demographic characteristics were well balanced between groups. The population’s median age was 73 years, and about 53% were men. The median baseline NIHSS score was approximately 15. About 74% of patients received IV thrombolysis. The median baseline Alberta Stroke Program Early CT Scan score was 9.

The investigators observed a slight shift toward worse outcome in the ASA group, compared with the no-ASA group (adjusted OR, 0.91). In addition, the ASA group had a significantly increased risk for sICH, compared with the no-ASA group (14% vs. 7.2%; aOR, 1.95).

Patients in the ASA group were less likely to have good functional outcome (mRS of 0 to 2; aOR, 0.76), and the mortality rate tended to be higher.

The researchers found a nonsignificant shift toward a worse functional outcome in the heparin group, compared with the no-heparin group (aOR, 0.81). The risk for sICH was significantly higher in the heparin group, compared with the no-heparin group (13% vs. 7.4%; aOR, 2.00).

Patients in the heparin group were also less likely to have a good functional outcome (aOR, 0.78), and there was a nonsignificant increase in risk for death among those patients.

The rate of sICH was 11% in the group that received low-dose heparin; it was 26% in the group that received moderate-dose heparin (aOR, 6.05). The mortality rate was 23% in the low-dose group and 47% in the moderate-dose group (aOR, 5.45).

There was no significant interaction between ASA and heparin on the primary outcome and on sICH occurrence.
 

‘A unique trial’

“MR CLEAN-MED is a unique trial because it investigated a widely used treatment but until now without any proof of effectiveness,” said Dr. van der Steen. The researchers expect that their findings will have a strong impact on the management of patients with acute ischemic stroke. They suggest that the administration of antithrombotic agents during EVT be avoided.

“We consider it probable that the increased risk of sICH explains at least a part of the nonsignificant shift towards a worse functional outcome,” co-investigator Bob Roozenbeek, MD, PhD, a neurologist at the Erasmus Medical Center, said in an interview. “However, to make more definite statements, we will have to do more in-depth analyses.”

It remains unclear whether the periprocedural use of lower dosages of antithrombotic agents or of a single bolus of heparin could be safe and effective, said Dr. van der Steen.

To gain insight into these questions, the investigators will evaluate the effect of the medications and dosages examined in this trial on primary hemostasis and coagulation activity in the trial population. They also plan to examine the effect of primary hemostasis and coagulation activity on risk for sICH and functional outcome.

Enhancing the effectiveness of thrombectomy for acute ischemic stroke continues to be an important goal for stroke therapy, said Mark Fisher, MD, professor of neurology and pathology and laboratory medicine at the University of California, Irvine, who commented on the findings for this news organization.

At least three strategies are available: The use of ancillary antithrombotic medications, neuroprotection, and modulation of the vasoconstrictive properties of the microcirculation.

“Results of MR CLEAN-MED argue against the antithrombotic strategy,” said Dr. Fisher. “The alternate strategies remain viable, and results of interventions using those approaches are awaited with great interest.”

The study was funded by the CONTRAST consortium, which is supported by the Netherlands Cardiovascular Research Initiative and the Brain Foundation Netherlands. Funding also was provided by Stryker, Medtronic, and Cerenovus. Dr. van der Steen and Dr. Fisher have disclosed no relevant financial relationships.

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

Treatment with acetylsalicylic acid (ASA) or heparin is associated with an increased risk for symptomatic intracranial hemorrhage (sICH) in patients with ischemic stroke who are undergoing endovascular therapy (EVT), new data show.

In this population, ASA and heparin are each associated with an approximately doubled risk for sICH when administered during EVT.

“We did not find any evidence for a beneficial effect on functional outcome,” investigator Wouter van der Steen, MD, research physician and PhD student at Erasmus University Medical Center, Rotterdam, the Netherlands, told this news organization. The possibility that a positive effect would be observed if the trial were continued was considered negligible, he added.

The researchers stopped the trial for safety reasons and recommend avoiding the evaluated dosages of both medications during EVT for ischemic stroke, said Dr. van der Steen.

He presented the findings from the MR CLEAN-MED trial at the European Stroke Organisation Conference (ESOC) 2021, which was held online.
 

Trial stopped for safety

Previous research has supported the safety and efficacy of EVT for ischemic stroke. Still, more than 30% of patients do not recover, despite fast and complete recanalization. Incomplete microvascular reperfusion (IMR) could explain this incomplete recovery, the researchers note.

Microthrombi, which occlude distal vessels, and neutrophil extracellular traps can cause IMR. This problem can be reduced through treatment with ASA, which has an antithrombotic effect, or with heparin, which dissolves neutrophil extracellular traps, they add. Although these drugs are associated with good clinical outcomes, they entail an increased risk for sICH.

The investigators conducted the multicenter, randomized controlled MR CLEAN-MED trial to evaluate the effect of intravenous (IV) ASA and heparin, alone or in combination, during EVT for acute ischemic stroke. Treatment was open label, but outcome assessment was blinded. Eligible participants were adults with a National Institutes of Health Stroke Scale (NIHSS) score of greater than or equal to 2 and an anterior circulation large-vessel occlusion for whom EVT could be initiated in fewer than 6 hours.

Investigators randomly assigned patients to receive or not to receive ASA. Within each of these two treatment groups, patients were randomly assigned to receive no heparin, low-dose heparin, or moderate-dose heparin.

ASA was given in a loading dose of 300 mg. Patients who were given low-dose heparin received a loading dose of 5,000 IU followed by 500 IU/h for 6 hours. Patients who received moderate-dose heparin were given a loading dose of 5,000 IU followed by 1,250 IU/h for 6 hours.

The study’s primary outcome was Modified Rankin Scale (mRS) score at 90 days. Secondary outcomes were NIHSS score at 24 hours, NIHSS score at 5 to 7 days, and recanalization grade at 24 hours on CT angiography or MRI. The primary safety outcomes were sICH and death within 90 days.

An independent, unblinded data and safety monitoring board (DSMB) assessed the risk for the primary safety outcomes throughout the trial. The board performed interim analyses of safety and efficacy for every 300 patients.

After the fourth safety assessment, the DSMB recommended that enrollment in the moderate-dose heparin arm be discontinued for safety reasons. Enrollment in other arms continued.

After the second interim analysis, the DSMB advised that the trial steering committee be unblinded to decide whether to stop or continue the trial. The steering committee decided to stop the trial for reasons of safety.
 

Increased risk for sICH

In all, 628 patients were included in the study. The ASA groups included 310 patients, and the no-ASA groups included 318 patients. In all, 332 participants received heparin, and 296 received no heparin.

The demographic characteristics were well balanced between groups. The population’s median age was 73 years, and about 53% were men. The median baseline NIHSS score was approximately 15. About 74% of patients received IV thrombolysis. The median baseline Alberta Stroke Program Early CT Scan score was 9.

The investigators observed a slight shift toward worse outcome in the ASA group, compared with the no-ASA group (adjusted OR, 0.91). In addition, the ASA group had a significantly increased risk for sICH, compared with the no-ASA group (14% vs. 7.2%; aOR, 1.95).

Patients in the ASA group were less likely to have good functional outcome (mRS of 0 to 2; aOR, 0.76), and the mortality rate tended to be higher.

The researchers found a nonsignificant shift toward a worse functional outcome in the heparin group, compared with the no-heparin group (aOR, 0.81). The risk for sICH was significantly higher in the heparin group, compared with the no-heparin group (13% vs. 7.4%; aOR, 2.00).

Patients in the heparin group were also less likely to have a good functional outcome (aOR, 0.78), and there was a nonsignificant increase in risk for death among those patients.

The rate of sICH was 11% in the group that received low-dose heparin; it was 26% in the group that received moderate-dose heparin (aOR, 6.05). The mortality rate was 23% in the low-dose group and 47% in the moderate-dose group (aOR, 5.45).

There was no significant interaction between ASA and heparin on the primary outcome and on sICH occurrence.
 

‘A unique trial’

“MR CLEAN-MED is a unique trial because it investigated a widely used treatment but until now without any proof of effectiveness,” said Dr. van der Steen. The researchers expect that their findings will have a strong impact on the management of patients with acute ischemic stroke. They suggest that the administration of antithrombotic agents during EVT be avoided.

“We consider it probable that the increased risk of sICH explains at least a part of the nonsignificant shift towards a worse functional outcome,” co-investigator Bob Roozenbeek, MD, PhD, a neurologist at the Erasmus Medical Center, said in an interview. “However, to make more definite statements, we will have to do more in-depth analyses.”

It remains unclear whether the periprocedural use of lower dosages of antithrombotic agents or of a single bolus of heparin could be safe and effective, said Dr. van der Steen.

To gain insight into these questions, the investigators will evaluate the effect of the medications and dosages examined in this trial on primary hemostasis and coagulation activity in the trial population. They also plan to examine the effect of primary hemostasis and coagulation activity on risk for sICH and functional outcome.

Enhancing the effectiveness of thrombectomy for acute ischemic stroke continues to be an important goal for stroke therapy, said Mark Fisher, MD, professor of neurology and pathology and laboratory medicine at the University of California, Irvine, who commented on the findings for this news organization.

At least three strategies are available: The use of ancillary antithrombotic medications, neuroprotection, and modulation of the vasoconstrictive properties of the microcirculation.

“Results of MR CLEAN-MED argue against the antithrombotic strategy,” said Dr. Fisher. “The alternate strategies remain viable, and results of interventions using those approaches are awaited with great interest.”

The study was funded by the CONTRAST consortium, which is supported by the Netherlands Cardiovascular Research Initiative and the Brain Foundation Netherlands. Funding also was provided by Stryker, Medtronic, and Cerenovus. Dr. van der Steen and Dr. Fisher have disclosed no relevant financial relationships.

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

Treatment with acetylsalicylic acid (ASA) or heparin is associated with an increased risk for symptomatic intracranial hemorrhage (sICH) in patients with ischemic stroke who are undergoing endovascular therapy (EVT), new data show.

In this population, ASA and heparin are each associated with an approximately doubled risk for sICH when administered during EVT.

“We did not find any evidence for a beneficial effect on functional outcome,” investigator Wouter van der Steen, MD, research physician and PhD student at Erasmus University Medical Center, Rotterdam, the Netherlands, told this news organization. The possibility that a positive effect would be observed if the trial were continued was considered negligible, he added.

The researchers stopped the trial for safety reasons and recommend avoiding the evaluated dosages of both medications during EVT for ischemic stroke, said Dr. van der Steen.

He presented the findings from the MR CLEAN-MED trial at the European Stroke Organisation Conference (ESOC) 2021, which was held online.
 

Trial stopped for safety

Previous research has supported the safety and efficacy of EVT for ischemic stroke. Still, more than 30% of patients do not recover, despite fast and complete recanalization. Incomplete microvascular reperfusion (IMR) could explain this incomplete recovery, the researchers note.

Microthrombi, which occlude distal vessels, and neutrophil extracellular traps can cause IMR. This problem can be reduced through treatment with ASA, which has an antithrombotic effect, or with heparin, which dissolves neutrophil extracellular traps, they add. Although these drugs are associated with good clinical outcomes, they entail an increased risk for sICH.

The investigators conducted the multicenter, randomized controlled MR CLEAN-MED trial to evaluate the effect of intravenous (IV) ASA and heparin, alone or in combination, during EVT for acute ischemic stroke. Treatment was open label, but outcome assessment was blinded. Eligible participants were adults with a National Institutes of Health Stroke Scale (NIHSS) score of greater than or equal to 2 and an anterior circulation large-vessel occlusion for whom EVT could be initiated in fewer than 6 hours.

Investigators randomly assigned patients to receive or not to receive ASA. Within each of these two treatment groups, patients were randomly assigned to receive no heparin, low-dose heparin, or moderate-dose heparin.

ASA was given in a loading dose of 300 mg. Patients who were given low-dose heparin received a loading dose of 5,000 IU followed by 500 IU/h for 6 hours. Patients who received moderate-dose heparin were given a loading dose of 5,000 IU followed by 1,250 IU/h for 6 hours.

The study’s primary outcome was Modified Rankin Scale (mRS) score at 90 days. Secondary outcomes were NIHSS score at 24 hours, NIHSS score at 5 to 7 days, and recanalization grade at 24 hours on CT angiography or MRI. The primary safety outcomes were sICH and death within 90 days.

An independent, unblinded data and safety monitoring board (DSMB) assessed the risk for the primary safety outcomes throughout the trial. The board performed interim analyses of safety and efficacy for every 300 patients.

After the fourth safety assessment, the DSMB recommended that enrollment in the moderate-dose heparin arm be discontinued for safety reasons. Enrollment in other arms continued.

After the second interim analysis, the DSMB advised that the trial steering committee be unblinded to decide whether to stop or continue the trial. The steering committee decided to stop the trial for reasons of safety.
 

Increased risk for sICH

In all, 628 patients were included in the study. The ASA groups included 310 patients, and the no-ASA groups included 318 patients. In all, 332 participants received heparin, and 296 received no heparin.

The demographic characteristics were well balanced between groups. The population’s median age was 73 years, and about 53% were men. The median baseline NIHSS score was approximately 15. About 74% of patients received IV thrombolysis. The median baseline Alberta Stroke Program Early CT Scan score was 9.

The investigators observed a slight shift toward worse outcome in the ASA group, compared with the no-ASA group (adjusted OR, 0.91). In addition, the ASA group had a significantly increased risk for sICH, compared with the no-ASA group (14% vs. 7.2%; aOR, 1.95).

Patients in the ASA group were less likely to have good functional outcome (mRS of 0 to 2; aOR, 0.76), and the mortality rate tended to be higher.

The researchers found a nonsignificant shift toward a worse functional outcome in the heparin group, compared with the no-heparin group (aOR, 0.81). The risk for sICH was significantly higher in the heparin group, compared with the no-heparin group (13% vs. 7.4%; aOR, 2.00).

Patients in the heparin group were also less likely to have a good functional outcome (aOR, 0.78), and there was a nonsignificant increase in risk for death among those patients.

The rate of sICH was 11% in the group that received low-dose heparin; it was 26% in the group that received moderate-dose heparin (aOR, 6.05). The mortality rate was 23% in the low-dose group and 47% in the moderate-dose group (aOR, 5.45).

There was no significant interaction between ASA and heparin on the primary outcome and on sICH occurrence.
 

‘A unique trial’

“MR CLEAN-MED is a unique trial because it investigated a widely used treatment but until now without any proof of effectiveness,” said Dr. van der Steen. The researchers expect that their findings will have a strong impact on the management of patients with acute ischemic stroke. They suggest that the administration of antithrombotic agents during EVT be avoided.

“We consider it probable that the increased risk of sICH explains at least a part of the nonsignificant shift towards a worse functional outcome,” co-investigator Bob Roozenbeek, MD, PhD, a neurologist at the Erasmus Medical Center, said in an interview. “However, to make more definite statements, we will have to do more in-depth analyses.”

It remains unclear whether the periprocedural use of lower dosages of antithrombotic agents or of a single bolus of heparin could be safe and effective, said Dr. van der Steen.

To gain insight into these questions, the investigators will evaluate the effect of the medications and dosages examined in this trial on primary hemostasis and coagulation activity in the trial population. They also plan to examine the effect of primary hemostasis and coagulation activity on risk for sICH and functional outcome.

Enhancing the effectiveness of thrombectomy for acute ischemic stroke continues to be an important goal for stroke therapy, said Mark Fisher, MD, professor of neurology and pathology and laboratory medicine at the University of California, Irvine, who commented on the findings for this news organization.

At least three strategies are available: The use of ancillary antithrombotic medications, neuroprotection, and modulation of the vasoconstrictive properties of the microcirculation.

“Results of MR CLEAN-MED argue against the antithrombotic strategy,” said Dr. Fisher. “The alternate strategies remain viable, and results of interventions using those approaches are awaited with great interest.”

The study was funded by the CONTRAST consortium, which is supported by the Netherlands Cardiovascular Research Initiative and the Brain Foundation Netherlands. Funding also was provided by Stryker, Medtronic, and Cerenovus. Dr. van der Steen and Dr. Fisher have disclosed no relevant financial relationships.

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

A preprint study finding that the Pfizer-BioNTech mRNA COVID vaccine is associated with an increased risk for cardiac adverse events in teenage boys has elicited a firestorm on Twitter. Although some people issued thoughtful critiques, others lobbed insults against the authors, and still others accused them of either being antivaccine or stoking the fires of the vaccine skeptic movement.

The controversy began soon after the study was posted online September 8 on medRxiv. The authors conclude that for boys, the risk for a cardiac adverse event or hospitalization after the second dose of the Pfizer mRNA vaccine was “considerably higher” than the 120-day risk for hospitalization for COVID-19, “even at times of peak disease prevalence.” This was especially true for those aged 12 to 15 years and even those with no underlying health conditions.

The conclusion – as well as the paper’s source, the Vaccine Adverse Event Reporting System (VAERS), and its methodology, modeled after the Centers for Disease Control and Prevention assessment of the database – did not sit well with many.

“Your methodology hugely overestimates risk, which many commentators who are specialists in the field have highlighted,” tweeted Deepti Gurdasani, senior lecturer in epidemiology at Queen Mary University of London. “Why make this claim when you must know it’s wrong?”

“The authors don’t know what they are doing and they are following their own ideology,” tweeted Boback Ziaeian, MD, PhD, assistant professor of medicine at the University of California, Los Angeles, in the cardiology division. Dr. Ziaeian also tweeted, “I believe the CDC is doing honest work and not dredging slop like you are.”

“Holy shit. Truly terrible methods in that paper,” tweeted Michael Mina, MD, PhD, an epidemiologist and immunologist at the Harvard School of Public Health, Boston, more bluntly.

Some pointed out that VAERS is often used by vaccine skeptics to spread misinformation. “‘Dumpster diving’ describes studies using #VAERS by authors (almost always antivaxxers) who don’t understand its limitations,” tweeted David Gorski, MD, PhD, the editor of Science-Based Medicine, who says in his Twitter bio that he “exposes quackery.”

Added Dr. Gorski: “Doctors fell into this trap with their study suggesting #CovidVaccine is more dangerous to children than #COVID19.”

Dr. Gorski said he did not think that the authors were antivaccine. But, he tweeted, “I’d argue that at least one of the authors (Stevenson) is grossly unqualified to analyze the data. Mandrola? Marginal. The other two *might* be qualified in public health/epi, but they clearly either had no clue about #VAERS limitations or didn’t take them seriously enough.” 

Two of the authors, John Mandrola, MD, a cardiac electrophysiologist who is also a columnist for Medscape, and Tracy Beth Hoeg, MD, PhD, an epidemiologist and sports medicine specialist, told this news organization that their estimates are not definitive, owing to the nature of the VAERS database.

“I want to emphasize that our signal is hypothesis-generating,” said Dr. Mandrola. “There’s obviously more research that needs to be done.” 

“I don’t think it should be used to establish a for-certain rate,” said Dr. Hoeg, about the study. “It’s not a perfect way of establishing what the rate of cardiac adverse events was, but it gives you an estimate, and generally with VAERS, it’s a significant underestimate.”

Both Dr. Hoeg and Dr. Mandrola said their analysis showed enough of a signal that it warranted a rush to publish. “We felt that it was super time-sensitive,” Dr. Mandrola said.
 

Vaccine risks versus COVID harm

The authors searched the VAERS system for children aged 12 to 17 years who had received one or two doses of an mRNA vaccine and had symptoms of myocarditis, pericarditis, myopericarditis, or chest pain, and also troponin levels available in the lab data.

Of the 257 patients they examined, 211 had peak troponin values available for analysis. All but one received the Pfizer vaccine. Results were stratified by age and sex.

The authors found that the rates of cardiac adverse events (CAEs) after dose 1 were 12.0 per million for 12- to 15-year-old boys and 8.2 per million for 16- and 17-year-old boys, compared with 0.0 per million and 2.0 per million for girls the same ages.

The estimates for the 12- to 15-year-old boys were 22% to 150% higher than what the CDC had previously reported.

After the second dose, the rate of CAEs for boys 12 to 15 years was 162.2 per million (143% to 280% higher than the CDC estimate) and for boys 16 and 17 years, it was 94.0 per million, or 30% to 40% higher than CDC estimate.

Dr. Mandrola said he and his colleagues found potentially more cases by using slightly broader search terms than those employed by the CDC but agreed with some critics that a limitation was that they did not call the reporting physicians, as is typical with CDC follow-up on VAERS reports.

The authors point to troponin levels as valid indicators of myocardial damage. Peak troponin levels exceeded 2 ng/mL in 71% of the 12- to 15-year-olds and 82% of 16- and 17-year-olds.

The study shows that for boys 12 to 15 years with no comorbidities, the risk for a CAE after the second dose would be 22.8 times higher than the risk for hospitalization for COVID-19 during periods of low disease burden, 6.0 times higher during periods of moderate transmission, and 4.3 times higher during periods of high transmission.

The authors acknowledge in the paper that their analysis “does not take into account any benefits the vaccine provides against transmission to others, long-term COVID-19 disease risk, or protection from nonsevere COVID-19 symptoms.”

Both Dr. Mandrola and Dr. Hoeg told this news organization that they are currently recalculating their estimates because of the rising numbers of pediatric hospitalizations from the Delta variant surge.
 

Paper rejected by journals

Dr. Hoeg said in an interview that the paper went through peer-review at three journals but was rejected by all three, for reasons that were not made clear.

She and the other authors incorporated the reviewers’ feedback at each turn and included all of their suggestions in the paper that was ultimately uploaded to medRxiv, said Dr. Hoeg.

They decided to put it out as a preprint after the U.S. Food and Drug Administration issued its data and then a warning on June 25 about myocarditis with use of the Pfizer vaccine in children 12 to 15 years of age.

The preprint study was picked up by some media outlets, including The Telegraph and The Guardian newspapers, and tweeted out by vaccine skeptics like Robert W. Malone, MD. 

Rep. Marjorie Taylor Greene (R-Georgia), an outspoken vaccine skeptic, tweeted out the Guardian story saying that the findings mean “there is every reason to stop the covid vaccine mandates.”

Dr. Gorski noted in tweets and in a blog post that one of the paper’s coauthors, Josh Stevenson, is part of Rational Ground, a group that supports the Great Barrington Declaration and is against lockdowns and mask mandates.

Mr. Stevenson did not disclose his affiliation in the paper, and Dr. Hoeg said in an interview that she was unaware of the group and Mr. Stevenson’s association with it and that she did not have the impression that he was altering the data to show any bias.

Both Dr. Mandrola and Dr. Hoeg said they are provaccine and that they were dismayed to find their work being used to support any agenda. “It’s very frustrating,” said Dr. Hoeg, adding that she understands that “when you publish research on a controversial topic, people are going to take it and use it for their agendas.”

Some on Twitter blamed the open and free-wheeling nature of preprints.

Harlan Krumholz, MD, SM, the Harold H. Hines, junior professor of medicine and public health at Yale University, New Haven, Conn., which oversees medRxiv, tweeted, “Do you get that the discussion about the preprint is exactly the purpose of #preprints. So that way when someone claims something, you can look at the source and experts can comment.”

But Dr. Ziaeian tweeted back, “Preprints like this one can be weaponized to stir anti-vaccine lies and damage public health.”

In turn, the Yale physician replied, “Unfortunately these days, almost anything can be weaponized, distorted, misunderstood.” Dr. Krumholz added: “There is no question that this preprint is worthy of deep vetting and discussion. But there is a #preprint artifact to examine.”
 

Measured support

Some clinicians signaled their support for open debate and the preprint’s findings.

“I’ve been very critical of preprints that are too quickly disseminated in the media, and this one is no exception,” tweeted Walid Gellad, MD, MPH, associate professor of medicine at the University of Pittsburgh. “On the other hand, I think the vitriol directed at these authors is wrong,” he added.

“Like it or not, the issue of myocarditis in kids is an issue. Other countries have made vaccination decisions because of this issue, not because they’re driven by some ideology,” he tweeted.

Dr. Gellad also notes that the FDA has estimated the risk could be as high as one in 5,000 and that the preprint numbers could actually be underestimates.

In a long thread, Frank Han, MD, an adult congenital and pediatric cardiologist at the University of Illinois, tweets that relying on the VAERS reports might be faulty and that advanced cardiac imaging – guided by strict criteria – is the best way to determine myocarditis. And, he tweeted, “Physician review of VAERS reports really matters.”

Dr. Han concluded that vaccination “trades in a significant risk with a much smaller risk. That’s what counts in the end.”

In a response, Dr. Mandrola called Han’s tweets “reasoned criticism of our analysis.” He adds that his and Dr. Hoeg’s study have limits, but “our point is not to avoid protecting kids, but how to do so most safely.”

Both Dr. Mandrola and Dr. Hoeg said they welcomed critiques, but they felt blindsided by the vehemence of some of the Twitter debate.

“Some of the vitriol was surprising,” Dr. Mandrola said. “I kind of have this naive notion that people would assume that we’re not bad people,” he added.

However, Dr. Mandrola is known on Twitter for sometimes being highly critical of other researchers’ work, referring to some studies as “howlers,” and has in the past called out others for citing those papers.

Dr. Hoeg said she found critiques about weaknesses in the methods to be helpful. But she said many tweets were “attacking us as people, or not really attacking anything about our study, but just attacking the finding,” which does not help anyone “figure out what we should do about the safety signal or how we can research it further.”

Said Dr. Mandrola: “Why would we just ignore that and go forward with two-shot vaccination as a mandate when other countries are looking at other strategies?”

He noted that the United Kingdom has announced that children 12 to 15 years of age should receive just one shot of the mRNA vaccines instead of two because of the risk for myocarditis. Sixteen- to 18-year-olds have already been advised to get only one dose.

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

A preprint study finding that the Pfizer-BioNTech mRNA COVID vaccine is associated with an increased risk for cardiac adverse events in teenage boys has elicited a firestorm on Twitter. Although some people issued thoughtful critiques, others lobbed insults against the authors, and still others accused them of either being antivaccine or stoking the fires of the vaccine skeptic movement.

The controversy began soon after the study was posted online September 8 on medRxiv. The authors conclude that for boys, the risk for a cardiac adverse event or hospitalization after the second dose of the Pfizer mRNA vaccine was “considerably higher” than the 120-day risk for hospitalization for COVID-19, “even at times of peak disease prevalence.” This was especially true for those aged 12 to 15 years and even those with no underlying health conditions.

The conclusion – as well as the paper’s source, the Vaccine Adverse Event Reporting System (VAERS), and its methodology, modeled after the Centers for Disease Control and Prevention assessment of the database – did not sit well with many.

“Your methodology hugely overestimates risk, which many commentators who are specialists in the field have highlighted,” tweeted Deepti Gurdasani, senior lecturer in epidemiology at Queen Mary University of London. “Why make this claim when you must know it’s wrong?”

“The authors don’t know what they are doing and they are following their own ideology,” tweeted Boback Ziaeian, MD, PhD, assistant professor of medicine at the University of California, Los Angeles, in the cardiology division. Dr. Ziaeian also tweeted, “I believe the CDC is doing honest work and not dredging slop like you are.”

“Holy shit. Truly terrible methods in that paper,” tweeted Michael Mina, MD, PhD, an epidemiologist and immunologist at the Harvard School of Public Health, Boston, more bluntly.

Some pointed out that VAERS is often used by vaccine skeptics to spread misinformation. “‘Dumpster diving’ describes studies using #VAERS by authors (almost always antivaxxers) who don’t understand its limitations,” tweeted David Gorski, MD, PhD, the editor of Science-Based Medicine, who says in his Twitter bio that he “exposes quackery.”

Added Dr. Gorski: “Doctors fell into this trap with their study suggesting #CovidVaccine is more dangerous to children than #COVID19.”

Dr. Gorski said he did not think that the authors were antivaccine. But, he tweeted, “I’d argue that at least one of the authors (Stevenson) is grossly unqualified to analyze the data. Mandrola? Marginal. The other two *might* be qualified in public health/epi, but they clearly either had no clue about #VAERS limitations or didn’t take them seriously enough.” 

Two of the authors, John Mandrola, MD, a cardiac electrophysiologist who is also a columnist for Medscape, and Tracy Beth Hoeg, MD, PhD, an epidemiologist and sports medicine specialist, told this news organization that their estimates are not definitive, owing to the nature of the VAERS database.

“I want to emphasize that our signal is hypothesis-generating,” said Dr. Mandrola. “There’s obviously more research that needs to be done.” 

“I don’t think it should be used to establish a for-certain rate,” said Dr. Hoeg, about the study. “It’s not a perfect way of establishing what the rate of cardiac adverse events was, but it gives you an estimate, and generally with VAERS, it’s a significant underestimate.”

Both Dr. Hoeg and Dr. Mandrola said their analysis showed enough of a signal that it warranted a rush to publish. “We felt that it was super time-sensitive,” Dr. Mandrola said.
 

Vaccine risks versus COVID harm

The authors searched the VAERS system for children aged 12 to 17 years who had received one or two doses of an mRNA vaccine and had symptoms of myocarditis, pericarditis, myopericarditis, or chest pain, and also troponin levels available in the lab data.

Of the 257 patients they examined, 211 had peak troponin values available for analysis. All but one received the Pfizer vaccine. Results were stratified by age and sex.

The authors found that the rates of cardiac adverse events (CAEs) after dose 1 were 12.0 per million for 12- to 15-year-old boys and 8.2 per million for 16- and 17-year-old boys, compared with 0.0 per million and 2.0 per million for girls the same ages.

The estimates for the 12- to 15-year-old boys were 22% to 150% higher than what the CDC had previously reported.

After the second dose, the rate of CAEs for boys 12 to 15 years was 162.2 per million (143% to 280% higher than the CDC estimate) and for boys 16 and 17 years, it was 94.0 per million, or 30% to 40% higher than CDC estimate.

Dr. Mandrola said he and his colleagues found potentially more cases by using slightly broader search terms than those employed by the CDC but agreed with some critics that a limitation was that they did not call the reporting physicians, as is typical with CDC follow-up on VAERS reports.

The authors point to troponin levels as valid indicators of myocardial damage. Peak troponin levels exceeded 2 ng/mL in 71% of the 12- to 15-year-olds and 82% of 16- and 17-year-olds.

The study shows that for boys 12 to 15 years with no comorbidities, the risk for a CAE after the second dose would be 22.8 times higher than the risk for hospitalization for COVID-19 during periods of low disease burden, 6.0 times higher during periods of moderate transmission, and 4.3 times higher during periods of high transmission.

The authors acknowledge in the paper that their analysis “does not take into account any benefits the vaccine provides against transmission to others, long-term COVID-19 disease risk, or protection from nonsevere COVID-19 symptoms.”

Both Dr. Mandrola and Dr. Hoeg told this news organization that they are currently recalculating their estimates because of the rising numbers of pediatric hospitalizations from the Delta variant surge.
 

Paper rejected by journals

Dr. Hoeg said in an interview that the paper went through peer-review at three journals but was rejected by all three, for reasons that were not made clear.

She and the other authors incorporated the reviewers’ feedback at each turn and included all of their suggestions in the paper that was ultimately uploaded to medRxiv, said Dr. Hoeg.

They decided to put it out as a preprint after the U.S. Food and Drug Administration issued its data and then a warning on June 25 about myocarditis with use of the Pfizer vaccine in children 12 to 15 years of age.

The preprint study was picked up by some media outlets, including The Telegraph and The Guardian newspapers, and tweeted out by vaccine skeptics like Robert W. Malone, MD. 

Rep. Marjorie Taylor Greene (R-Georgia), an outspoken vaccine skeptic, tweeted out the Guardian story saying that the findings mean “there is every reason to stop the covid vaccine mandates.”

Dr. Gorski noted in tweets and in a blog post that one of the paper’s coauthors, Josh Stevenson, is part of Rational Ground, a group that supports the Great Barrington Declaration and is against lockdowns and mask mandates.

Mr. Stevenson did not disclose his affiliation in the paper, and Dr. Hoeg said in an interview that she was unaware of the group and Mr. Stevenson’s association with it and that she did not have the impression that he was altering the data to show any bias.

Both Dr. Mandrola and Dr. Hoeg said they are provaccine and that they were dismayed to find their work being used to support any agenda. “It’s very frustrating,” said Dr. Hoeg, adding that she understands that “when you publish research on a controversial topic, people are going to take it and use it for their agendas.”

Some on Twitter blamed the open and free-wheeling nature of preprints.

Harlan Krumholz, MD, SM, the Harold H. Hines, junior professor of medicine and public health at Yale University, New Haven, Conn., which oversees medRxiv, tweeted, “Do you get that the discussion about the preprint is exactly the purpose of #preprints. So that way when someone claims something, you can look at the source and experts can comment.”

But Dr. Ziaeian tweeted back, “Preprints like this one can be weaponized to stir anti-vaccine lies and damage public health.”

In turn, the Yale physician replied, “Unfortunately these days, almost anything can be weaponized, distorted, misunderstood.” Dr. Krumholz added: “There is no question that this preprint is worthy of deep vetting and discussion. But there is a #preprint artifact to examine.”
 

Measured support

Some clinicians signaled their support for open debate and the preprint’s findings.

“I’ve been very critical of preprints that are too quickly disseminated in the media, and this one is no exception,” tweeted Walid Gellad, MD, MPH, associate professor of medicine at the University of Pittsburgh. “On the other hand, I think the vitriol directed at these authors is wrong,” he added.

“Like it or not, the issue of myocarditis in kids is an issue. Other countries have made vaccination decisions because of this issue, not because they’re driven by some ideology,” he tweeted.

Dr. Gellad also notes that the FDA has estimated the risk could be as high as one in 5,000 and that the preprint numbers could actually be underestimates.

In a long thread, Frank Han, MD, an adult congenital and pediatric cardiologist at the University of Illinois, tweets that relying on the VAERS reports might be faulty and that advanced cardiac imaging – guided by strict criteria – is the best way to determine myocarditis. And, he tweeted, “Physician review of VAERS reports really matters.”

Dr. Han concluded that vaccination “trades in a significant risk with a much smaller risk. That’s what counts in the end.”

In a response, Dr. Mandrola called Han’s tweets “reasoned criticism of our analysis.” He adds that his and Dr. Hoeg’s study have limits, but “our point is not to avoid protecting kids, but how to do so most safely.”

Both Dr. Mandrola and Dr. Hoeg said they welcomed critiques, but they felt blindsided by the vehemence of some of the Twitter debate.

“Some of the vitriol was surprising,” Dr. Mandrola said. “I kind of have this naive notion that people would assume that we’re not bad people,” he added.

However, Dr. Mandrola is known on Twitter for sometimes being highly critical of other researchers’ work, referring to some studies as “howlers,” and has in the past called out others for citing those papers.

Dr. Hoeg said she found critiques about weaknesses in the methods to be helpful. But she said many tweets were “attacking us as people, or not really attacking anything about our study, but just attacking the finding,” which does not help anyone “figure out what we should do about the safety signal or how we can research it further.”

Said Dr. Mandrola: “Why would we just ignore that and go forward with two-shot vaccination as a mandate when other countries are looking at other strategies?”

He noted that the United Kingdom has announced that children 12 to 15 years of age should receive just one shot of the mRNA vaccines instead of two because of the risk for myocarditis. Sixteen- to 18-year-olds have already been advised to get only one dose.

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

A preprint study finding that the Pfizer-BioNTech mRNA COVID vaccine is associated with an increased risk for cardiac adverse events in teenage boys has elicited a firestorm on Twitter. Although some people issued thoughtful critiques, others lobbed insults against the authors, and still others accused them of either being antivaccine or stoking the fires of the vaccine skeptic movement.

The controversy began soon after the study was posted online September 8 on medRxiv. The authors conclude that for boys, the risk for a cardiac adverse event or hospitalization after the second dose of the Pfizer mRNA vaccine was “considerably higher” than the 120-day risk for hospitalization for COVID-19, “even at times of peak disease prevalence.” This was especially true for those aged 12 to 15 years and even those with no underlying health conditions.

The conclusion – as well as the paper’s source, the Vaccine Adverse Event Reporting System (VAERS), and its methodology, modeled after the Centers for Disease Control and Prevention assessment of the database – did not sit well with many.

“Your methodology hugely overestimates risk, which many commentators who are specialists in the field have highlighted,” tweeted Deepti Gurdasani, senior lecturer in epidemiology at Queen Mary University of London. “Why make this claim when you must know it’s wrong?”

“The authors don’t know what they are doing and they are following their own ideology,” tweeted Boback Ziaeian, MD, PhD, assistant professor of medicine at the University of California, Los Angeles, in the cardiology division. Dr. Ziaeian also tweeted, “I believe the CDC is doing honest work and not dredging slop like you are.”

“Holy shit. Truly terrible methods in that paper,” tweeted Michael Mina, MD, PhD, an epidemiologist and immunologist at the Harvard School of Public Health, Boston, more bluntly.

Some pointed out that VAERS is often used by vaccine skeptics to spread misinformation. “‘Dumpster diving’ describes studies using #VAERS by authors (almost always antivaxxers) who don’t understand its limitations,” tweeted David Gorski, MD, PhD, the editor of Science-Based Medicine, who says in his Twitter bio that he “exposes quackery.”

Added Dr. Gorski: “Doctors fell into this trap with their study suggesting #CovidVaccine is more dangerous to children than #COVID19.”

Dr. Gorski said he did not think that the authors were antivaccine. But, he tweeted, “I’d argue that at least one of the authors (Stevenson) is grossly unqualified to analyze the data. Mandrola? Marginal. The other two *might* be qualified in public health/epi, but they clearly either had no clue about #VAERS limitations or didn’t take them seriously enough.” 

Two of the authors, John Mandrola, MD, a cardiac electrophysiologist who is also a columnist for Medscape, and Tracy Beth Hoeg, MD, PhD, an epidemiologist and sports medicine specialist, told this news organization that their estimates are not definitive, owing to the nature of the VAERS database.

“I want to emphasize that our signal is hypothesis-generating,” said Dr. Mandrola. “There’s obviously more research that needs to be done.” 

“I don’t think it should be used to establish a for-certain rate,” said Dr. Hoeg, about the study. “It’s not a perfect way of establishing what the rate of cardiac adverse events was, but it gives you an estimate, and generally with VAERS, it’s a significant underestimate.”

Both Dr. Hoeg and Dr. Mandrola said their analysis showed enough of a signal that it warranted a rush to publish. “We felt that it was super time-sensitive,” Dr. Mandrola said.
 

Vaccine risks versus COVID harm

The authors searched the VAERS system for children aged 12 to 17 years who had received one or two doses of an mRNA vaccine and had symptoms of myocarditis, pericarditis, myopericarditis, or chest pain, and also troponin levels available in the lab data.

Of the 257 patients they examined, 211 had peak troponin values available for analysis. All but one received the Pfizer vaccine. Results were stratified by age and sex.

The authors found that the rates of cardiac adverse events (CAEs) after dose 1 were 12.0 per million for 12- to 15-year-old boys and 8.2 per million for 16- and 17-year-old boys, compared with 0.0 per million and 2.0 per million for girls the same ages.

The estimates for the 12- to 15-year-old boys were 22% to 150% higher than what the CDC had previously reported.

After the second dose, the rate of CAEs for boys 12 to 15 years was 162.2 per million (143% to 280% higher than the CDC estimate) and for boys 16 and 17 years, it was 94.0 per million, or 30% to 40% higher than CDC estimate.

Dr. Mandrola said he and his colleagues found potentially more cases by using slightly broader search terms than those employed by the CDC but agreed with some critics that a limitation was that they did not call the reporting physicians, as is typical with CDC follow-up on VAERS reports.

The authors point to troponin levels as valid indicators of myocardial damage. Peak troponin levels exceeded 2 ng/mL in 71% of the 12- to 15-year-olds and 82% of 16- and 17-year-olds.

The study shows that for boys 12 to 15 years with no comorbidities, the risk for a CAE after the second dose would be 22.8 times higher than the risk for hospitalization for COVID-19 during periods of low disease burden, 6.0 times higher during periods of moderate transmission, and 4.3 times higher during periods of high transmission.

The authors acknowledge in the paper that their analysis “does not take into account any benefits the vaccine provides against transmission to others, long-term COVID-19 disease risk, or protection from nonsevere COVID-19 symptoms.”

Both Dr. Mandrola and Dr. Hoeg told this news organization that they are currently recalculating their estimates because of the rising numbers of pediatric hospitalizations from the Delta variant surge.
 

Paper rejected by journals

Dr. Hoeg said in an interview that the paper went through peer-review at three journals but was rejected by all three, for reasons that were not made clear.

She and the other authors incorporated the reviewers’ feedback at each turn and included all of their suggestions in the paper that was ultimately uploaded to medRxiv, said Dr. Hoeg.

They decided to put it out as a preprint after the U.S. Food and Drug Administration issued its data and then a warning on June 25 about myocarditis with use of the Pfizer vaccine in children 12 to 15 years of age.

The preprint study was picked up by some media outlets, including The Telegraph and The Guardian newspapers, and tweeted out by vaccine skeptics like Robert W. Malone, MD. 

Rep. Marjorie Taylor Greene (R-Georgia), an outspoken vaccine skeptic, tweeted out the Guardian story saying that the findings mean “there is every reason to stop the covid vaccine mandates.”

Dr. Gorski noted in tweets and in a blog post that one of the paper’s coauthors, Josh Stevenson, is part of Rational Ground, a group that supports the Great Barrington Declaration and is against lockdowns and mask mandates.

Mr. Stevenson did not disclose his affiliation in the paper, and Dr. Hoeg said in an interview that she was unaware of the group and Mr. Stevenson’s association with it and that she did not have the impression that he was altering the data to show any bias.

Both Dr. Mandrola and Dr. Hoeg said they are provaccine and that they were dismayed to find their work being used to support any agenda. “It’s very frustrating,” said Dr. Hoeg, adding that she understands that “when you publish research on a controversial topic, people are going to take it and use it for their agendas.”

Some on Twitter blamed the open and free-wheeling nature of preprints.

Harlan Krumholz, MD, SM, the Harold H. Hines, junior professor of medicine and public health at Yale University, New Haven, Conn., which oversees medRxiv, tweeted, “Do you get that the discussion about the preprint is exactly the purpose of #preprints. So that way when someone claims something, you can look at the source and experts can comment.”

But Dr. Ziaeian tweeted back, “Preprints like this one can be weaponized to stir anti-vaccine lies and damage public health.”

In turn, the Yale physician replied, “Unfortunately these days, almost anything can be weaponized, distorted, misunderstood.” Dr. Krumholz added: “There is no question that this preprint is worthy of deep vetting and discussion. But there is a #preprint artifact to examine.”
 

Measured support

Some clinicians signaled their support for open debate and the preprint’s findings.

“I’ve been very critical of preprints that are too quickly disseminated in the media, and this one is no exception,” tweeted Walid Gellad, MD, MPH, associate professor of medicine at the University of Pittsburgh. “On the other hand, I think the vitriol directed at these authors is wrong,” he added.

“Like it or not, the issue of myocarditis in kids is an issue. Other countries have made vaccination decisions because of this issue, not because they’re driven by some ideology,” he tweeted.

Dr. Gellad also notes that the FDA has estimated the risk could be as high as one in 5,000 and that the preprint numbers could actually be underestimates.

In a long thread, Frank Han, MD, an adult congenital and pediatric cardiologist at the University of Illinois, tweets that relying on the VAERS reports might be faulty and that advanced cardiac imaging – guided by strict criteria – is the best way to determine myocarditis. And, he tweeted, “Physician review of VAERS reports really matters.”

Dr. Han concluded that vaccination “trades in a significant risk with a much smaller risk. That’s what counts in the end.”

In a response, Dr. Mandrola called Han’s tweets “reasoned criticism of our analysis.” He adds that his and Dr. Hoeg’s study have limits, but “our point is not to avoid protecting kids, but how to do so most safely.”

Both Dr. Mandrola and Dr. Hoeg said they welcomed critiques, but they felt blindsided by the vehemence of some of the Twitter debate.

“Some of the vitriol was surprising,” Dr. Mandrola said. “I kind of have this naive notion that people would assume that we’re not bad people,” he added.

However, Dr. Mandrola is known on Twitter for sometimes being highly critical of other researchers’ work, referring to some studies as “howlers,” and has in the past called out others for citing those papers.

Dr. Hoeg said she found critiques about weaknesses in the methods to be helpful. But she said many tweets were “attacking us as people, or not really attacking anything about our study, but just attacking the finding,” which does not help anyone “figure out what we should do about the safety signal or how we can research it further.”

Said Dr. Mandrola: “Why would we just ignore that and go forward with two-shot vaccination as a mandate when other countries are looking at other strategies?”

He noted that the United Kingdom has announced that children 12 to 15 years of age should receive just one shot of the mRNA vaccines instead of two because of the risk for myocarditis. Sixteen- to 18-year-olds have already been advised to get only one dose.

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

A 3-month lifestyle intervention that used a step counter and regular, personalized text messages to encourage increased mobility and adherence to medications led to a substantial rise in the quality of life in a randomized controlled study with 187 U.S. patients with heart failure and diabetes.

The TARGET-HF-DM study supplied a wrist-worn step counting device to adults with any type of heart failure and any type of diabetes at six U.S. sites and collected data on daily step counts and medication adherence through smartphone-based apps. Researchers randomized the patients to an intervention of thrice-weekly text messages that gave them personalized feedback on their recent activity and adherence and updated activity and adherence goals, or to a control group that only received a once-weekly generic message to wear the step counter.

After 3 months, patients in the intervention arm had an average incremental gain of 313 steps per day from baseline, compared with the controls, a significant difference for the study’s primary endpoint, G. Michael Felker, MD, reported at the annual scientific meeting of the Heart Failure Society of America.
 

A ‘quite large’ increase in quality of life.

Perhaps more importantly, a secondary analysis assessed quality of life with the Kansas City Cardiomyopathy Questionnaire (KCCQ) overall summary score, which showed after 3 months a 5.5-point average increased improvement among patients in the intervention arm, compared with controls. Score increases of 5 of more points on the KCCQ represent clinically meaningful changes.

This average, incremental KCCQ score improvement was “quite large relative to what we typically see in placebo-controlled trials of effective drugs,” said Dr. Felker, professor of medicine at Duke University, Durham, N.C., and director of cardiovascular research at the Duke Clinical Research Institute. If a similar magnitude change in KCCQ was associated with a drug treatment “we would say it was an incredibly large signal in terms of quality of life, so I think the patients are telling us that [the intervention] is making a clinically important difference.”

But Dr. Felker cautioned that the study was not blinded, raising the possibility that the change in quality of life could have been partially explained by “patients feeling more engaged about doing something for their health.”

His report omitted data on the medication adherence facet of the study, which will come out in a subsequent report, raising the possibility that some of the quality of life benefit as well as the ability of patients to boost their step count was related to more consistent treatment with their prescribed medications, but Dr. Felker discounted this possibility.

“The adherence intervention was basically a digital tool that helped people better remember their medication regimen. While it is possible that this could have influenced the KCCQ data this seems quite unlikely to me,” he said in an interview.
 

‘Exercise is the new magic’

“Exercise is the new magic,” commented Mariann R. Piano, PhD, a professor at Vanderbilt University, Nashville, Tenn., and cochair of the session where Dr. Felker gave his report. “I love that the trial was pragmatic, randomized, and ran at six sites so the generalizability of the findings is really strong.” Dr. Piano also gave the study high marks for recruiting many African American patients, 47% of the study population, and its assessment of a patient-reported outcome, the KCCQ score.

Patients enrolled in TARGET-HF-DM averaged 59 years of age, about a third were women, and two-thirds had heart failure with a reduced ejection fraction of 40% or less. Eighty percent of participants had New York Heart Association class II functional limitations, and a third also had atrial fibrillation. Their average serum level of the N-terminal of the prohormone brain natriuretic peptide at baseline was 1,309 pg/mL. Most patients were on standard heart failure and diabetes medications, with 88% receiving an ACE inhibitor or angiotensin-receptor blocker (in some cases coupled with sacubitril), 90% were on a beta-blocker, 50% were on a mineralocorticoid receptor antagonist, 54% were on insulin, 47% were on a biguanidine, 25% were on a sulfonylurea, and 7% were on a sodium-glucose cotransporter inhibitor. About half the patients also had an implantable cardioverter defibrillator.

Dr. Felker acknowledged that the 313 average increment in steps per day among patients in the intervention group, compared with controls was modest, but it represented about a 10% increase from baseline among patients who in general had a very sedentary life. All patients had received at the start of the study guidelines from the American Heart Association on appropriate types and levels of physical activity for patients with heart failure and diabetes. The researcher previously published a description of the design and rationale of the study.

The study followed patients for an additional 3 months beyond the end of the intervention period, and the excess step count among people in the intervention arm persisted, although the between-group difference was no longer significant. The researchers also analyzed changes during the intervention phase in abnormal fatty acid metabolites among a subgroup of 110 patients and found that these levels tended to decline among those in the intervention group but not among the controls. These metabolites have been associated with disordered metabolism in patient with heart failure, so the observed reduced levels were consistent with the other outcomes. “The signals all went in the direction of reduced metabolic dysregulation,” said Dr. Felker.

Despite the positive outcomes of the intervention studied, Dr. Felker said that this type of approach needs further refinement and study before it’s ready for widespread use. “I think TARGET-HF-DM is another piece of the puzzle, but like all small trials it needs replication in larger trials before adoption into practice guidelines,” he added.

The study received no commercial funding. Dr. Felker has been a consultant to Amgen, Bristol-Myers Squibb, Cytokinetics, Medtronic, Novartis, Reprieve, and Sequana, and he has received research funding from several companies. Dr. Piano had no disclosures.

mzoler@mdedge.com

A 3-month lifestyle intervention that used a step counter and regular, personalized text messages to encourage increased mobility and adherence to medications led to a substantial rise in the quality of life in a randomized controlled study with 187 U.S. patients with heart failure and diabetes.

The TARGET-HF-DM study supplied a wrist-worn step counting device to adults with any type of heart failure and any type of diabetes at six U.S. sites and collected data on daily step counts and medication adherence through smartphone-based apps. Researchers randomized the patients to an intervention of thrice-weekly text messages that gave them personalized feedback on their recent activity and adherence and updated activity and adherence goals, or to a control group that only received a once-weekly generic message to wear the step counter.

After 3 months, patients in the intervention arm had an average incremental gain of 313 steps per day from baseline, compared with the controls, a significant difference for the study’s primary endpoint, G. Michael Felker, MD, reported at the annual scientific meeting of the Heart Failure Society of America.
 

A ‘quite large’ increase in quality of life.

Perhaps more importantly, a secondary analysis assessed quality of life with the Kansas City Cardiomyopathy Questionnaire (KCCQ) overall summary score, which showed after 3 months a 5.5-point average increased improvement among patients in the intervention arm, compared with controls. Score increases of 5 of more points on the KCCQ represent clinically meaningful changes.

This average, incremental KCCQ score improvement was “quite large relative to what we typically see in placebo-controlled trials of effective drugs,” said Dr. Felker, professor of medicine at Duke University, Durham, N.C., and director of cardiovascular research at the Duke Clinical Research Institute. If a similar magnitude change in KCCQ was associated with a drug treatment “we would say it was an incredibly large signal in terms of quality of life, so I think the patients are telling us that [the intervention] is making a clinically important difference.”

But Dr. Felker cautioned that the study was not blinded, raising the possibility that the change in quality of life could have been partially explained by “patients feeling more engaged about doing something for their health.”

His report omitted data on the medication adherence facet of the study, which will come out in a subsequent report, raising the possibility that some of the quality of life benefit as well as the ability of patients to boost their step count was related to more consistent treatment with their prescribed medications, but Dr. Felker discounted this possibility.

“The adherence intervention was basically a digital tool that helped people better remember their medication regimen. While it is possible that this could have influenced the KCCQ data this seems quite unlikely to me,” he said in an interview.
 

‘Exercise is the new magic’

“Exercise is the new magic,” commented Mariann R. Piano, PhD, a professor at Vanderbilt University, Nashville, Tenn., and cochair of the session where Dr. Felker gave his report. “I love that the trial was pragmatic, randomized, and ran at six sites so the generalizability of the findings is really strong.” Dr. Piano also gave the study high marks for recruiting many African American patients, 47% of the study population, and its assessment of a patient-reported outcome, the KCCQ score.

Patients enrolled in TARGET-HF-DM averaged 59 years of age, about a third were women, and two-thirds had heart failure with a reduced ejection fraction of 40% or less. Eighty percent of participants had New York Heart Association class II functional limitations, and a third also had atrial fibrillation. Their average serum level of the N-terminal of the prohormone brain natriuretic peptide at baseline was 1,309 pg/mL. Most patients were on standard heart failure and diabetes medications, with 88% receiving an ACE inhibitor or angiotensin-receptor blocker (in some cases coupled with sacubitril), 90% were on a beta-blocker, 50% were on a mineralocorticoid receptor antagonist, 54% were on insulin, 47% were on a biguanidine, 25% were on a sulfonylurea, and 7% were on a sodium-glucose cotransporter inhibitor. About half the patients also had an implantable cardioverter defibrillator.

Dr. Felker acknowledged that the 313 average increment in steps per day among patients in the intervention group, compared with controls was modest, but it represented about a 10% increase from baseline among patients who in general had a very sedentary life. All patients had received at the start of the study guidelines from the American Heart Association on appropriate types and levels of physical activity for patients with heart failure and diabetes. The researcher previously published a description of the design and rationale of the study.

The study followed patients for an additional 3 months beyond the end of the intervention period, and the excess step count among people in the intervention arm persisted, although the between-group difference was no longer significant. The researchers also analyzed changes during the intervention phase in abnormal fatty acid metabolites among a subgroup of 110 patients and found that these levels tended to decline among those in the intervention group but not among the controls. These metabolites have been associated with disordered metabolism in patient with heart failure, so the observed reduced levels were consistent with the other outcomes. “The signals all went in the direction of reduced metabolic dysregulation,” said Dr. Felker.

Despite the positive outcomes of the intervention studied, Dr. Felker said that this type of approach needs further refinement and study before it’s ready for widespread use. “I think TARGET-HF-DM is another piece of the puzzle, but like all small trials it needs replication in larger trials before adoption into practice guidelines,” he added.

The study received no commercial funding. Dr. Felker has been a consultant to Amgen, Bristol-Myers Squibb, Cytokinetics, Medtronic, Novartis, Reprieve, and Sequana, and he has received research funding from several companies. Dr. Piano had no disclosures.

mzoler@mdedge.com

A 3-month lifestyle intervention that used a step counter and regular, personalized text messages to encourage increased mobility and adherence to medications led to a substantial rise in the quality of life in a randomized controlled study with 187 U.S. patients with heart failure and diabetes.

The TARGET-HF-DM study supplied a wrist-worn step counting device to adults with any type of heart failure and any type of diabetes at six U.S. sites and collected data on daily step counts and medication adherence through smartphone-based apps. Researchers randomized the patients to an intervention of thrice-weekly text messages that gave them personalized feedback on their recent activity and adherence and updated activity and adherence goals, or to a control group that only received a once-weekly generic message to wear the step counter.

After 3 months, patients in the intervention arm had an average incremental gain of 313 steps per day from baseline, compared with the controls, a significant difference for the study’s primary endpoint, G. Michael Felker, MD, reported at the annual scientific meeting of the Heart Failure Society of America.
 

A ‘quite large’ increase in quality of life.

Perhaps more importantly, a secondary analysis assessed quality of life with the Kansas City Cardiomyopathy Questionnaire (KCCQ) overall summary score, which showed after 3 months a 5.5-point average increased improvement among patients in the intervention arm, compared with controls. Score increases of 5 of more points on the KCCQ represent clinically meaningful changes.

This average, incremental KCCQ score improvement was “quite large relative to what we typically see in placebo-controlled trials of effective drugs,” said Dr. Felker, professor of medicine at Duke University, Durham, N.C., and director of cardiovascular research at the Duke Clinical Research Institute. If a similar magnitude change in KCCQ was associated with a drug treatment “we would say it was an incredibly large signal in terms of quality of life, so I think the patients are telling us that [the intervention] is making a clinically important difference.”

But Dr. Felker cautioned that the study was not blinded, raising the possibility that the change in quality of life could have been partially explained by “patients feeling more engaged about doing something for their health.”

His report omitted data on the medication adherence facet of the study, which will come out in a subsequent report, raising the possibility that some of the quality of life benefit as well as the ability of patients to boost their step count was related to more consistent treatment with their prescribed medications, but Dr. Felker discounted this possibility.

“The adherence intervention was basically a digital tool that helped people better remember their medication regimen. While it is possible that this could have influenced the KCCQ data this seems quite unlikely to me,” he said in an interview.
 

‘Exercise is the new magic’

“Exercise is the new magic,” commented Mariann R. Piano, PhD, a professor at Vanderbilt University, Nashville, Tenn., and cochair of the session where Dr. Felker gave his report. “I love that the trial was pragmatic, randomized, and ran at six sites so the generalizability of the findings is really strong.” Dr. Piano also gave the study high marks for recruiting many African American patients, 47% of the study population, and its assessment of a patient-reported outcome, the KCCQ score.

Patients enrolled in TARGET-HF-DM averaged 59 years of age, about a third were women, and two-thirds had heart failure with a reduced ejection fraction of 40% or less. Eighty percent of participants had New York Heart Association class II functional limitations, and a third also had atrial fibrillation. Their average serum level of the N-terminal of the prohormone brain natriuretic peptide at baseline was 1,309 pg/mL. Most patients were on standard heart failure and diabetes medications, with 88% receiving an ACE inhibitor or angiotensin-receptor blocker (in some cases coupled with sacubitril), 90% were on a beta-blocker, 50% were on a mineralocorticoid receptor antagonist, 54% were on insulin, 47% were on a biguanidine, 25% were on a sulfonylurea, and 7% were on a sodium-glucose cotransporter inhibitor. About half the patients also had an implantable cardioverter defibrillator.

Dr. Felker acknowledged that the 313 average increment in steps per day among patients in the intervention group, compared with controls was modest, but it represented about a 10% increase from baseline among patients who in general had a very sedentary life. All patients had received at the start of the study guidelines from the American Heart Association on appropriate types and levels of physical activity for patients with heart failure and diabetes. The researcher previously published a description of the design and rationale of the study.

The study followed patients for an additional 3 months beyond the end of the intervention period, and the excess step count among people in the intervention arm persisted, although the between-group difference was no longer significant. The researchers also analyzed changes during the intervention phase in abnormal fatty acid metabolites among a subgroup of 110 patients and found that these levels tended to decline among those in the intervention group but not among the controls. These metabolites have been associated with disordered metabolism in patient with heart failure, so the observed reduced levels were consistent with the other outcomes. “The signals all went in the direction of reduced metabolic dysregulation,” said Dr. Felker.

Despite the positive outcomes of the intervention studied, Dr. Felker said that this type of approach needs further refinement and study before it’s ready for widespread use. “I think TARGET-HF-DM is another piece of the puzzle, but like all small trials it needs replication in larger trials before adoption into practice guidelines,” he added.

The study received no commercial funding. Dr. Felker has been a consultant to Amgen, Bristol-Myers Squibb, Cytokinetics, Medtronic, Novartis, Reprieve, and Sequana, and he has received research funding from several companies. Dr. Piano had no disclosures.

mzoler@mdedge.com

Bariatric surgery is associated with a reduction in risk of major adverse cardiac events (MACE), and Roux-en-Y gastric bypass (RYGB) is linked to a greater reduction than sleeve gastrectomy (SG).

Those are the key findings of a retrospective analysis of a large group of patients who received care at the Cleveland Clinic between 1998 and 2017. MACE is defined as first occurrence of coronary artery events, cerebrovascular events, heart failure, nephropathy, atrial fibrillation, and all-cause mortality.

“I think what it tells us is that, in making these choices and in counseling patients about the potential advantages of undergoing bariatric surgery for their obesity and diabetes, that they should know that they’re more likely to be protected by a Roux-en-Y gastric bypass, although certainly sleeve gastrectomy is effective,” said study coauthor Steven E. Nissen, MD, who is the chief academic officer of the Heart and Vascular Institute at the Cleveland Clinic.

Previous studies have shown a benefit to metabolic surgery in patients with type 2 diabetes and obesity, improving diabetes control and altering cardiometabolic risk factors. Others have shown a link between surgery and reduced mortality. Most studies examined the impact of RYGB. SG is a newer procedure, but its relative simplicity and lower complication rate have helped it become the most commonly performed metabolic surgery in the world.

“There was no study to compare gastric bypass and sleeve gastrectomy head to head in terms of reduction in risk of cardiovascular disease. There are studies comparing these two procedures for diabetes control and weight loss, but not specifically in terms of effects on their risk of developing cardiovascular disease. That’s the unique feature of this study,” said lead author Ali Aminian, MD, who is director of the Bariatric and Metabolic Institute at the Cleveland Clinic.

The researchers included 2,287 adults with type 2 diabetes and a body mass index of at least 30 kg/m², with no history of solid organ transplant, severe heart failure, or active cancer. 1,362 underwent RYGB, and 693 SG. Outcomes were compared with 11,435 matched nonsurgical patients.

At 5 years, 13.7% of the RYGB group experienced a MACE (95% confidence interval, 11.4-15.9), compared with 24.7% of the SG group for a relative reduction of 33% (95% CI, 19.0-30.0; adjusted hazard ratio, 0.77; P = .035). The nonsurgical group had a 5-year MACE incidence of 30.4% (95% CI, 29.4-31.5). Compared with usual care, the risk of MACE was lower in both the RYGB group (HR, 0.53; P < .001) and the SG group (HR, 0.69; P < .001). The researchers also analyzed the cumulative incidence of all-cause mortality, myocardial infarction, and ischemic stroke (three-component MACE) at 5 years. The cumulative incidence of three-component MACE at 5 years was 15.5% in the usual care group, 6.4% in the RYGB group (HR, 0.53 versus usual care; P < .001) and 11.8% in the SG group (HR vs. usual care, 0.65; P = .006).

The RYGB group had less nephropathy at 5 years (2.8% vs. 8.3%; HR, 0.47; P = .005), and experienced a greater reduction in weight, glycated hemoglobin, and diabetes and cardiovascular medication use. At 5 years, RYGB was associated with a higher frequency of upper endoscopy (45.8% vs. 35.6%, P < .001) and abdominal surgical procedures (10.8% vs. 5.4%, P = .001), compared with SG.

“Both procedures are extremely safe and extremely effective,” said Dr. Aminian. He pointed out the need to consider multiple factors when choosing between the procedures, including overall health, weight, comorbidities, and the patient’s values and goals.

A few factors may be contraindicated for one procedure or another. The sleeve may worsen severe reflux disease, while the gastric bypass may interfere more with absorption of psychiatric medications. Some patients may have multiple comorbidities that could point to a less risky procedure. “Decision-making should not be solely based on findings of this study. All these conditions need to be considered when patients and surgeons make a final decision about the most appropriate procedure,” said Dr. Aminian.

Dr. Nissen noted that the associations were wide ranging, including classic outcomes like death, stroke, and heart failure, but also extending to heart failure, coronary events, cerebral vascular events, nephropathy, and atrial fibrillation. “I found the nephropathy results to be amongst the most striking, that Roux-en-Y really dramatically reduced the risk of neuropathy,” he added. That’s a particularly important point because end-stage renal disease is a common cause of diabetes mortality.

Dr. Nissen acknowledged the limitations of the retrospective nature of the study, though he feels confident that the relationships are causal. “Bariatric surgery desperately needs a randomized, controlled trial, where both groups get intensive dietary and lifestyle counseling, but one group gets metabolic surgery and the other doesn’t. Given the dramatic effects in diabetic patients of reducing their hemoglobin A1c in a sustained way, reducing their body weight. We think these are very strong data to suggest that we have a major reduction in all the endpoints. If we’re right about this, the randomized controlled trial will show that dramatic effect, and will convince even the skeptics that metabolic surgery is the best way to go.”

Bariatric surgery is associated with a reduction in risk of major adverse cardiac events (MACE), and Roux-en-Y gastric bypass (RYGB) is linked to a greater reduction than sleeve gastrectomy (SG).

Those are the key findings of a retrospective analysis of a large group of patients who received care at the Cleveland Clinic between 1998 and 2017. MACE is defined as first occurrence of coronary artery events, cerebrovascular events, heart failure, nephropathy, atrial fibrillation, and all-cause mortality.

“I think what it tells us is that, in making these choices and in counseling patients about the potential advantages of undergoing bariatric surgery for their obesity and diabetes, that they should know that they’re more likely to be protected by a Roux-en-Y gastric bypass, although certainly sleeve gastrectomy is effective,” said study coauthor Steven E. Nissen, MD, who is the chief academic officer of the Heart and Vascular Institute at the Cleveland Clinic.

Previous studies have shown a benefit to metabolic surgery in patients with type 2 diabetes and obesity, improving diabetes control and altering cardiometabolic risk factors. Others have shown a link between surgery and reduced mortality. Most studies examined the impact of RYGB. SG is a newer procedure, but its relative simplicity and lower complication rate have helped it become the most commonly performed metabolic surgery in the world.

“There was no study to compare gastric bypass and sleeve gastrectomy head to head in terms of reduction in risk of cardiovascular disease. There are studies comparing these two procedures for diabetes control and weight loss, but not specifically in terms of effects on their risk of developing cardiovascular disease. That’s the unique feature of this study,” said lead author Ali Aminian, MD, who is director of the Bariatric and Metabolic Institute at the Cleveland Clinic.

The researchers included 2,287 adults with type 2 diabetes and a body mass index of at least 30 kg/m², with no history of solid organ transplant, severe heart failure, or active cancer. 1,362 underwent RYGB, and 693 SG. Outcomes were compared with 11,435 matched nonsurgical patients.

At 5 years, 13.7% of the RYGB group experienced a MACE (95% confidence interval, 11.4-15.9), compared with 24.7% of the SG group for a relative reduction of 33% (95% CI, 19.0-30.0; adjusted hazard ratio, 0.77; P = .035). The nonsurgical group had a 5-year MACE incidence of 30.4% (95% CI, 29.4-31.5). Compared with usual care, the risk of MACE was lower in both the RYGB group (HR, 0.53; P < .001) and the SG group (HR, 0.69; P < .001). The researchers also analyzed the cumulative incidence of all-cause mortality, myocardial infarction, and ischemic stroke (three-component MACE) at 5 years. The cumulative incidence of three-component MACE at 5 years was 15.5% in the usual care group, 6.4% in the RYGB group (HR, 0.53 versus usual care; P < .001) and 11.8% in the SG group (HR vs. usual care, 0.65; P = .006).

The RYGB group had less nephropathy at 5 years (2.8% vs. 8.3%; HR, 0.47; P = .005), and experienced a greater reduction in weight, glycated hemoglobin, and diabetes and cardiovascular medication use. At 5 years, RYGB was associated with a higher frequency of upper endoscopy (45.8% vs. 35.6%, P < .001) and abdominal surgical procedures (10.8% vs. 5.4%, P = .001), compared with SG.

“Both procedures are extremely safe and extremely effective,” said Dr. Aminian. He pointed out the need to consider multiple factors when choosing between the procedures, including overall health, weight, comorbidities, and the patient’s values and goals.

A few factors may be contraindicated for one procedure or another. The sleeve may worsen severe reflux disease, while the gastric bypass may interfere more with absorption of psychiatric medications. Some patients may have multiple comorbidities that could point to a less risky procedure. “Decision-making should not be solely based on findings of this study. All these conditions need to be considered when patients and surgeons make a final decision about the most appropriate procedure,” said Dr. Aminian.

Dr. Nissen noted that the associations were wide ranging, including classic outcomes like death, stroke, and heart failure, but also extending to heart failure, coronary events, cerebral vascular events, nephropathy, and atrial fibrillation. “I found the nephropathy results to be amongst the most striking, that Roux-en-Y really dramatically reduced the risk of neuropathy,” he added. That’s a particularly important point because end-stage renal disease is a common cause of diabetes mortality.

Dr. Nissen acknowledged the limitations of the retrospective nature of the study, though he feels confident that the relationships are causal. “Bariatric surgery desperately needs a randomized, controlled trial, where both groups get intensive dietary and lifestyle counseling, but one group gets metabolic surgery and the other doesn’t. Given the dramatic effects in diabetic patients of reducing their hemoglobin A1c in a sustained way, reducing their body weight. We think these are very strong data to suggest that we have a major reduction in all the endpoints. If we’re right about this, the randomized controlled trial will show that dramatic effect, and will convince even the skeptics that metabolic surgery is the best way to go.”

Bariatric surgery is associated with a reduction in risk of major adverse cardiac events (MACE), and Roux-en-Y gastric bypass (RYGB) is linked to a greater reduction than sleeve gastrectomy (SG).

Those are the key findings of a retrospective analysis of a large group of patients who received care at the Cleveland Clinic between 1998 and 2017. MACE is defined as first occurrence of coronary artery events, cerebrovascular events, heart failure, nephropathy, atrial fibrillation, and all-cause mortality.

“I think what it tells us is that, in making these choices and in counseling patients about the potential advantages of undergoing bariatric surgery for their obesity and diabetes, that they should know that they’re more likely to be protected by a Roux-en-Y gastric bypass, although certainly sleeve gastrectomy is effective,” said study coauthor Steven E. Nissen, MD, who is the chief academic officer of the Heart and Vascular Institute at the Cleveland Clinic.

Previous studies have shown a benefit to metabolic surgery in patients with type 2 diabetes and obesity, improving diabetes control and altering cardiometabolic risk factors. Others have shown a link between surgery and reduced mortality. Most studies examined the impact of RYGB. SG is a newer procedure, but its relative simplicity and lower complication rate have helped it become the most commonly performed metabolic surgery in the world.

“There was no study to compare gastric bypass and sleeve gastrectomy head to head in terms of reduction in risk of cardiovascular disease. There are studies comparing these two procedures for diabetes control and weight loss, but not specifically in terms of effects on their risk of developing cardiovascular disease. That’s the unique feature of this study,” said lead author Ali Aminian, MD, who is director of the Bariatric and Metabolic Institute at the Cleveland Clinic.

The researchers included 2,287 adults with type 2 diabetes and a body mass index of at least 30 kg/m², with no history of solid organ transplant, severe heart failure, or active cancer. 1,362 underwent RYGB, and 693 SG. Outcomes were compared with 11,435 matched nonsurgical patients.

At 5 years, 13.7% of the RYGB group experienced a MACE (95% confidence interval, 11.4-15.9), compared with 24.7% of the SG group for a relative reduction of 33% (95% CI, 19.0-30.0; adjusted hazard ratio, 0.77; P = .035). The nonsurgical group had a 5-year MACE incidence of 30.4% (95% CI, 29.4-31.5). Compared with usual care, the risk of MACE was lower in both the RYGB group (HR, 0.53; P < .001) and the SG group (HR, 0.69; P < .001). The researchers also analyzed the cumulative incidence of all-cause mortality, myocardial infarction, and ischemic stroke (three-component MACE) at 5 years. The cumulative incidence of three-component MACE at 5 years was 15.5% in the usual care group, 6.4% in the RYGB group (HR, 0.53 versus usual care; P < .001) and 11.8% in the SG group (HR vs. usual care, 0.65; P = .006).

The RYGB group had less nephropathy at 5 years (2.8% vs. 8.3%; HR, 0.47; P = .005), and experienced a greater reduction in weight, glycated hemoglobin, and diabetes and cardiovascular medication use. At 5 years, RYGB was associated with a higher frequency of upper endoscopy (45.8% vs. 35.6%, P < .001) and abdominal surgical procedures (10.8% vs. 5.4%, P = .001), compared with SG.

“Both procedures are extremely safe and extremely effective,” said Dr. Aminian. He pointed out the need to consider multiple factors when choosing between the procedures, including overall health, weight, comorbidities, and the patient’s values and goals.

A few factors may be contraindicated for one procedure or another. The sleeve may worsen severe reflux disease, while the gastric bypass may interfere more with absorption of psychiatric medications. Some patients may have multiple comorbidities that could point to a less risky procedure. “Decision-making should not be solely based on findings of this study. All these conditions need to be considered when patients and surgeons make a final decision about the most appropriate procedure,” said Dr. Aminian.

Dr. Nissen noted that the associations were wide ranging, including classic outcomes like death, stroke, and heart failure, but also extending to heart failure, coronary events, cerebral vascular events, nephropathy, and atrial fibrillation. “I found the nephropathy results to be amongst the most striking, that Roux-en-Y really dramatically reduced the risk of neuropathy,” he added. That’s a particularly important point because end-stage renal disease is a common cause of diabetes mortality.

Dr. Nissen acknowledged the limitations of the retrospective nature of the study, though he feels confident that the relationships are causal. “Bariatric surgery desperately needs a randomized, controlled trial, where both groups get intensive dietary and lifestyle counseling, but one group gets metabolic surgery and the other doesn’t. Given the dramatic effects in diabetic patients of reducing their hemoglobin A1c in a sustained way, reducing their body weight. We think these are very strong data to suggest that we have a major reduction in all the endpoints. If we’re right about this, the randomized controlled trial will show that dramatic effect, and will convince even the skeptics that metabolic surgery is the best way to go.”

THE CASE

A 75-year-old man with a history of osteoarthritis presented to our clinic with worsening weakness over the previous month. His signs and symptoms included profound fatigue, subjective fevers, a 10-pound weight loss, ankle swelling, myalgias in his legs and back, shortness of breath, and a persistent cough. The patient was otherwise previously healthy.

The patient’s heart and lung exams were normal. Initial outpatient labs showed significantly elevated inflammatory markers, with an erythrocyte sedimentation rate (ESR) of 102 mm/h (normal range for men ≥ 50 years, 0-20 mm/h) and a C-reactive protein (CRP) level of 11.1 mg/L (normal range, < 3 mg/L). The patient also had an elevated white blood cell count of 12,000/mcL (normal range, 4500-11,000/mcL). His hemoglobin was low (11 g/dL; normal range, 13.5-17.5 g/dL) and so was his albumin level (2.9 g/dL; normal range, 3.4-5.4 g/dL). The results of his prostate-specific antigen and brain natriuretic peptide tests were both normal. The results of a computed tomography scan of his thorax, abdomen, and pelvis were negative for malignancy.

The patient returned to our clinic 3 days later with severe weakness, which inhibited him from walking. He complained of a severe spasmodic pain between his shoulder blades. He denied joint stiffness, headaches, vision changes, or jaw claudication. The patient’s son had noted an overall increase in his father’s baseline heart rate, with readings increasing from the 50 beats/min range to the 70 beats/min range; this raised concern for a ­catecholamine-secreting tumor. There was also concern for occult infection and malignancy, or an autoimmune process, such as polymyalgia rheumatica. Due to his extreme weakness, the patient was directly admitted to the hospital for further work-up.

THE DIAGNOSIS

Concern for a smoldering infection prompted an order for a ­transthoracic echocardiogram. Images revealed a large mass on the mitral valve (FIGURE 1). Blood cultures quickly grew Streptococcus sanguinis. Additional work-up with a transesophageal echocardiogram (TEE) showed a “windsock” deformity (thinning and ballooning of the mitral valve), a known sequela of infective endocarditis (FIGURE 2).¹ Further history obtained after the TEE revealed the patient had had a routine dental cleaning the month before his symptoms began. A murmur was then also detected.

DISCUSSION

Infective endocarditis (IE) is uncommon and difficult to diagnose; it has a high early-­mortality rate of 30%.² TEE is the recommended imaging study for IE, because it is more sensitive than a transthoracic echocardiogram for identifying vegetations on the valves and it is more cost effective.³

The modified Duke Criteria provide guidance for diagnosis of endocarditis. Major criteria focus on positive blood cultures and evidence of endocardial involvement. Minor criteria include predisposing heart conditions, intravenous drug use (IVDU), fever, and vascular and immunologic phenomena. As many as 90% of patients have a fever and often experience weight loss.⁴ Murmurs are auscultated in up to 85% of patients, and embolic features are present in up to 25% of patients at the time of diagnosis.⁴ In the developed world, Janeway lesions, Osler nodes, and splinter hemorrhages are increasingly rare, as patients usually present earlier in the disease course.⁴ While ESR and CRP are generally elevated in cases of IE, they are not part of the Duke Criteria.⁴

A closer look at risk factors

In 2007, guidelines for the prevention, treatment, and management of endocarditis were given significant categorical revision by the American Heart Association for the first time in 50 years.⁵ Recommendations for antibiotic prophylaxis prior to dental procedures became more restrictive, to include only 4 groups of high-risk patients: those with prosthetic cardiac valves, those with a history of IE, those with congenital heart disease, and cardiac transplant recipients.⁴ The rationale for these restrictions included the small risk for anaphylaxis and potential increase in risk for bacterial resistance associated with antibiotic prophylaxis.⁴ A review published in 2021 noted no increase in the frequency of, nor the morbidity and mortality from, viridans group streptococcal IE since the guideline updates.⁵

Continue to: There is an emerging consensus...

There is an emerging consensus that poor oral hygiene and gingival bleeding after tooth brushing promote a chronic low-grade bacteremia that may be more strongly associated with IE than an isolated dental extraction.⁶ Poor dental hygiene, defined as dental plaque and calculus, is especially common in the elderly, who are known to let their dental hygiene lapse.⁶ In our patient’s case, his generally poor oral hygiene was more likely the cause of his IE than his routine dental cleaning.

Other risk factors include IV drug use. At our tertiary care hospital in western North Carolina, 48% of patients with endocarditis had an additional diagnosis of opiate or narcotic dependence (Ryan Tilton, PharmD, email communication, June 7, 2018). Interestingly, though, only 16% of patients in North America with endocarditis were found to be currently using IV drugs.⁷

Our patient was treated with IV antibiotics for 4 weeks and underwent rehabilitation at a skilled nursing facility. Four weeks after diagnosis, he underwent an endoscopic porcine mitral valve replacement. Two months after that, he returned to his previously active lifestyle and began riding his stationary bike. The patient also began taking a daily aspirin. Consistent with current guidelines, he now gets antibiotic prophylaxis prior to dental procedures.

THE TAKEAWAY

This patient, without any history of IVDU or cardiac valvular abnormalities, presented with symptoms classic for a developing malignancy or possible rheumatologic condition. Subacute IE may manifest similarly, with vague symptoms such as myalgias, fatigue, chills, and/or anemia. In non-drug users, suspicion for endocarditis should be highest in men older than age 60. Also, it’s important to auscultate for a new heart murmur. In our patient’s case, no murmur was auscultated until after his TEE. JFP

CORRESPONDENCE
Ginger Poulton, MD, 123 Hendersonville Road, Asheville, NC 28803; ginger.poulton@mahec.net

THE CASE

A 75-year-old man with a history of osteoarthritis presented to our clinic with worsening weakness over the previous month. His signs and symptoms included profound fatigue, subjective fevers, a 10-pound weight loss, ankle swelling, myalgias in his legs and back, shortness of breath, and a persistent cough. The patient was otherwise previously healthy.

The patient’s heart and lung exams were normal. Initial outpatient labs showed significantly elevated inflammatory markers, with an erythrocyte sedimentation rate (ESR) of 102 mm/h (normal range for men ≥ 50 years, 0-20 mm/h) and a C-reactive protein (CRP) level of 11.1 mg/L (normal range, < 3 mg/L). The patient also had an elevated white blood cell count of 12,000/mcL (normal range, 4500-11,000/mcL). His hemoglobin was low (11 g/dL; normal range, 13.5-17.5 g/dL) and so was his albumin level (2.9 g/dL; normal range, 3.4-5.4 g/dL). The results of his prostate-specific antigen and brain natriuretic peptide tests were both normal. The results of a computed tomography scan of his thorax, abdomen, and pelvis were negative for malignancy.

The patient returned to our clinic 3 days later with severe weakness, which inhibited him from walking. He complained of a severe spasmodic pain between his shoulder blades. He denied joint stiffness, headaches, vision changes, or jaw claudication. The patient’s son had noted an overall increase in his father’s baseline heart rate, with readings increasing from the 50 beats/min range to the 70 beats/min range; this raised concern for a ­catecholamine-secreting tumor. There was also concern for occult infection and malignancy, or an autoimmune process, such as polymyalgia rheumatica. Due to his extreme weakness, the patient was directly admitted to the hospital for further work-up.

THE DIAGNOSIS

Concern for a smoldering infection prompted an order for a ­transthoracic echocardiogram. Images revealed a large mass on the mitral valve (FIGURE 1). Blood cultures quickly grew Streptococcus sanguinis. Additional work-up with a transesophageal echocardiogram (TEE) showed a “windsock” deformity (thinning and ballooning of the mitral valve), a known sequela of infective endocarditis (FIGURE 2).¹ Further history obtained after the TEE revealed the patient had had a routine dental cleaning the month before his symptoms began. A murmur was then also detected.

DISCUSSION

Infective endocarditis (IE) is uncommon and difficult to diagnose; it has a high early-­mortality rate of 30%.² TEE is the recommended imaging study for IE, because it is more sensitive than a transthoracic echocardiogram for identifying vegetations on the valves and it is more cost effective.³

The modified Duke Criteria provide guidance for diagnosis of endocarditis. Major criteria focus on positive blood cultures and evidence of endocardial involvement. Minor criteria include predisposing heart conditions, intravenous drug use (IVDU), fever, and vascular and immunologic phenomena. As many as 90% of patients have a fever and often experience weight loss.⁴ Murmurs are auscultated in up to 85% of patients, and embolic features are present in up to 25% of patients at the time of diagnosis.⁴ In the developed world, Janeway lesions, Osler nodes, and splinter hemorrhages are increasingly rare, as patients usually present earlier in the disease course.⁴ While ESR and CRP are generally elevated in cases of IE, they are not part of the Duke Criteria.⁴

A closer look at risk factors

In 2007, guidelines for the prevention, treatment, and management of endocarditis were given significant categorical revision by the American Heart Association for the first time in 50 years.⁵ Recommendations for antibiotic prophylaxis prior to dental procedures became more restrictive, to include only 4 groups of high-risk patients: those with prosthetic cardiac valves, those with a history of IE, those with congenital heart disease, and cardiac transplant recipients.⁴ The rationale for these restrictions included the small risk for anaphylaxis and potential increase in risk for bacterial resistance associated with antibiotic prophylaxis.⁴ A review published in 2021 noted no increase in the frequency of, nor the morbidity and mortality from, viridans group streptococcal IE since the guideline updates.⁵

Continue to: There is an emerging consensus...

There is an emerging consensus that poor oral hygiene and gingival bleeding after tooth brushing promote a chronic low-grade bacteremia that may be more strongly associated with IE than an isolated dental extraction.⁶ Poor dental hygiene, defined as dental plaque and calculus, is especially common in the elderly, who are known to let their dental hygiene lapse.⁶ In our patient’s case, his generally poor oral hygiene was more likely the cause of his IE than his routine dental cleaning.

Other risk factors include IV drug use. At our tertiary care hospital in western North Carolina, 48% of patients with endocarditis had an additional diagnosis of opiate or narcotic dependence (Ryan Tilton, PharmD, email communication, June 7, 2018). Interestingly, though, only 16% of patients in North America with endocarditis were found to be currently using IV drugs.⁷

Our patient was treated with IV antibiotics for 4 weeks and underwent rehabilitation at a skilled nursing facility. Four weeks after diagnosis, he underwent an endoscopic porcine mitral valve replacement. Two months after that, he returned to his previously active lifestyle and began riding his stationary bike. The patient also began taking a daily aspirin. Consistent with current guidelines, he now gets antibiotic prophylaxis prior to dental procedures.

THE TAKEAWAY

This patient, without any history of IVDU or cardiac valvular abnormalities, presented with symptoms classic for a developing malignancy or possible rheumatologic condition. Subacute IE may manifest similarly, with vague symptoms such as myalgias, fatigue, chills, and/or anemia. In non-drug users, suspicion for endocarditis should be highest in men older than age 60. Also, it’s important to auscultate for a new heart murmur. In our patient’s case, no murmur was auscultated until after his TEE. JFP

CORRESPONDENCE
Ginger Poulton, MD, 123 Hendersonville Road, Asheville, NC 28803; ginger.poulton@mahec.net

THE CASE

A 75-year-old man with a history of osteoarthritis presented to our clinic with worsening weakness over the previous month. His signs and symptoms included profound fatigue, subjective fevers, a 10-pound weight loss, ankle swelling, myalgias in his legs and back, shortness of breath, and a persistent cough. The patient was otherwise previously healthy.

The patient’s heart and lung exams were normal. Initial outpatient labs showed significantly elevated inflammatory markers, with an erythrocyte sedimentation rate (ESR) of 102 mm/h (normal range for men ≥ 50 years, 0-20 mm/h) and a C-reactive protein (CRP) level of 11.1 mg/L (normal range, < 3 mg/L). The patient also had an elevated white blood cell count of 12,000/mcL (normal range, 4500-11,000/mcL). His hemoglobin was low (11 g/dL; normal range, 13.5-17.5 g/dL) and so was his albumin level (2.9 g/dL; normal range, 3.4-5.4 g/dL). The results of his prostate-specific antigen and brain natriuretic peptide tests were both normal. The results of a computed tomography scan of his thorax, abdomen, and pelvis were negative for malignancy.

The patient returned to our clinic 3 days later with severe weakness, which inhibited him from walking. He complained of a severe spasmodic pain between his shoulder blades. He denied joint stiffness, headaches, vision changes, or jaw claudication. The patient’s son had noted an overall increase in his father’s baseline heart rate, with readings increasing from the 50 beats/min range to the 70 beats/min range; this raised concern for a ­catecholamine-secreting tumor. There was also concern for occult infection and malignancy, or an autoimmune process, such as polymyalgia rheumatica. Due to his extreme weakness, the patient was directly admitted to the hospital for further work-up.

THE DIAGNOSIS

Concern for a smoldering infection prompted an order for a ­transthoracic echocardiogram. Images revealed a large mass on the mitral valve (FIGURE 1). Blood cultures quickly grew Streptococcus sanguinis. Additional work-up with a transesophageal echocardiogram (TEE) showed a “windsock” deformity (thinning and ballooning of the mitral valve), a known sequela of infective endocarditis (FIGURE 2).¹ Further history obtained after the TEE revealed the patient had had a routine dental cleaning the month before his symptoms began. A murmur was then also detected.

DISCUSSION

Infective endocarditis (IE) is uncommon and difficult to diagnose; it has a high early-­mortality rate of 30%.² TEE is the recommended imaging study for IE, because it is more sensitive than a transthoracic echocardiogram for identifying vegetations on the valves and it is more cost effective.³

The modified Duke Criteria provide guidance for diagnosis of endocarditis. Major criteria focus on positive blood cultures and evidence of endocardial involvement. Minor criteria include predisposing heart conditions, intravenous drug use (IVDU), fever, and vascular and immunologic phenomena. As many as 90% of patients have a fever and often experience weight loss.⁴ Murmurs are auscultated in up to 85% of patients, and embolic features are present in up to 25% of patients at the time of diagnosis.⁴ In the developed world, Janeway lesions, Osler nodes, and splinter hemorrhages are increasingly rare, as patients usually present earlier in the disease course.⁴ While ESR and CRP are generally elevated in cases of IE, they are not part of the Duke Criteria.⁴

A closer look at risk factors

In 2007, guidelines for the prevention, treatment, and management of endocarditis were given significant categorical revision by the American Heart Association for the first time in 50 years.⁵ Recommendations for antibiotic prophylaxis prior to dental procedures became more restrictive, to include only 4 groups of high-risk patients: those with prosthetic cardiac valves, those with a history of IE, those with congenital heart disease, and cardiac transplant recipients.⁴ The rationale for these restrictions included the small risk for anaphylaxis and potential increase in risk for bacterial resistance associated with antibiotic prophylaxis.⁴ A review published in 2021 noted no increase in the frequency of, nor the morbidity and mortality from, viridans group streptococcal IE since the guideline updates.⁵

Continue to: There is an emerging consensus...

There is an emerging consensus that poor oral hygiene and gingival bleeding after tooth brushing promote a chronic low-grade bacteremia that may be more strongly associated with IE than an isolated dental extraction.⁶ Poor dental hygiene, defined as dental plaque and calculus, is especially common in the elderly, who are known to let their dental hygiene lapse.⁶ In our patient’s case, his generally poor oral hygiene was more likely the cause of his IE than his routine dental cleaning.

Other risk factors include IV drug use. At our tertiary care hospital in western North Carolina, 48% of patients with endocarditis had an additional diagnosis of opiate or narcotic dependence (Ryan Tilton, PharmD, email communication, June 7, 2018). Interestingly, though, only 16% of patients in North America with endocarditis were found to be currently using IV drugs.⁷

Our patient was treated with IV antibiotics for 4 weeks and underwent rehabilitation at a skilled nursing facility. Four weeks after diagnosis, he underwent an endoscopic porcine mitral valve replacement. Two months after that, he returned to his previously active lifestyle and began riding his stationary bike. The patient also began taking a daily aspirin. Consistent with current guidelines, he now gets antibiotic prophylaxis prior to dental procedures.

THE TAKEAWAY

This patient, without any history of IVDU or cardiac valvular abnormalities, presented with symptoms classic for a developing malignancy or possible rheumatologic condition. Subacute IE may manifest similarly, with vague symptoms such as myalgias, fatigue, chills, and/or anemia. In non-drug users, suspicion for endocarditis should be highest in men older than age 60. Also, it’s important to auscultate for a new heart murmur. In our patient’s case, no murmur was auscultated until after his TEE. JFP

CORRESPONDENCE
Ginger Poulton, MD, 123 Hendersonville Road, Asheville, NC 28803; ginger.poulton@mahec.net

The SGLT2 inhibitor dapagliflozin scored a clear win in a randomized, controlled trial with more than 300 U.S. patients with heart failure with preserved ejection fraction (HFpEF), showing a significant and clinically meaningful benefit for the primary endpoint, a KCCQ measure of symptoms and physical limitations, after 12 weeks of treatment.

These results in the PRESERVED-HF study follow closely on the heals of the initial report from the EMPEROR-Preserved trial that showed a benefit from a different sodium-glucose cotransporter 2 (SGLT2) inhibitor, empagliflozin (Jardiance) in nearly 6,000 randomized patients for the primary endpoint of preventing cardiovascular death or hospitalizations for heart failure.

In PRESERVED-HF, patients with HFpEF who received a standard, once-daily dose of dapagliflozin (Farxiga) had an average 5.8-point improvement in their condition as measured by the Kansas City Cardiomyopathy Questionnaire clinical summary score (KCCQ-CS), the study’s primary endpoint.

This is “the first study to demonstrate that an SGLT2 inhibitor dapagliflozin significantly improves symptoms, physical limitations, and 6-minute walking distance in patients with HFpEF,” Mikhail N. Kosiborod, MD, reported at the annual scientific meeting of the Heart Failure Society of America. The secondary endpoint of 6-minute walking distance “has been very difficult to improve in many previous studies of other treatments” tested in patients with HFpEF, noted Dr. Kosiborod, a cardiologist and codirector of the Cardiometabolic Center of Excellence at Saint Luke’s Mid-America Heart Institute.

The results are “highly complementary” to the findings from large outcome trials, such as the findings from EMPEROR-Preserved, he said, and collectively the recent findings from these studies of SGLT2 inhibitors in patients with HFpEF identify drugs in this class as a “new treatment option” for patients with a disorder that until now had no treatment with unequivocally proven efficacy and safety.
 

‘Impressive and unprecedented’ findings

The findings are “really impressive and unprecedented,” said Milton Packer, MD, a cardiologist at Baylor University Medical Center in Dallas who was not involved in the study. “This is the largest KCCQ benefit ever seen in either patients with HFpEF or in patients with heart failure with reduced ejection fraction,” said Dr. Packer, one of the investigators who led the EMPEROR-Preserved trial.

MDedge News

PRESERVED-HF randomized 324 patients diagnosed with heart failure and with a left ventricular ejection fraction of 45% or higher at any of 26 U.S. centers, with 304 patients completing the planned final analysis after 12 weeks on treatment. Patients could be in New York Heart Association (NYHA) functional class II-IV, they had to have a baseline N-terminal pro-brain natriuretic peptide (NT-proBNP) level of at least 225 pg/mL (or higher if they also had atrial fibrillation), and they required at least one of three markers of established heart failure: recent hospitalization for heart failure or an urgent outpatient visit that required treatment with an IV diuretic, elevated filling pressure measured by left or right catheterization, or structural heart disease detected by echocardiography.

The average age of the enrolled patients was 70 years, and they had been diagnosed with heart failure for about 3 years; 57% were women, 30% were African American, and their median body mass index was 35 kg/m². Roughly 42% had NYHA class III or IV disease, 56% had type 2 diabetes, their median estimated glomerular filtration rate was about 55 mL/min per 1.73m², their median KCCQ-CS score at baseline was about 62, and their average 6-minute walk distance was 244 m.

These and other features of the enrolled population define a distinctly U.S. patient population, stressed Dr. Kosiborod, professor of medicine at the University of Missouri–Kansas City.

“The patients we enrolled are the patients we see in U.S. clinical practice,” he said in an interview. Importantly, the patient profile of a median BMI of 35 kg/m², a median KCCQ-CS score of 62 – “quite low,” noted Dr. Kosiborod – and having more than 40% of patients in NYHA functional class III defines a study population with a substantially greater burden of obesity, symptoms, and functional impairment compared with those enrolled in prior trials involving patients with HFpEF such as EMPEROR-Preserved.
 

Results complement findings from larger trials

PRESERVED-HF was an investigator-initiated study designed to inform clinical practice, not as a pivotal trial like EMPEROR-Preserved, which aims to gather evidence to support a new indication for regulatory approval. (On Sept. 9, 2021, the Food and Drug Administration granted empagliflozin “breakthrough therapy” status for treating HFpEF based on the EMPEROR-Preserved results, which will fast-track the agency’s decision on this indication.)

Dr. Kosiborod noted that he and his associates designed PRESERVED-HF with adequate patient numbers to power a statistically valid assessment of effect on KCCQ-CS score. While the new findings will not by themselves lead to a new indication for dapagliflozin to treat patients with HFpEF, they will potentially complement the pending results of another trial, DELIVER, by showing efficacy and safety in a uniquely U.S. patient population. DELIVER is a pivotal, global trial of dapagliflozin in more than 6,000 patients with HFpEF that’s on track to report findings in 2022.

Dr. Kosiborod also stressed that dapagliflozin has U.S.-approved indications for treating patients with type 2 diabetes, and for patients with chronic kidney disease, and that a majority of patients enrolled in PRESERVED-HF had one or both of these conditions. That makes the new findings especially compelling for patients with either type 2 diabetes or chronic kidney disease and HFpEF who are not already receiving an SGLT2 inhibitor.

Other findings that he reported showed a range of benefits consistent with the primary endpoint, including the KCCQ overall summary score, which also showed a significant 4.5-point average increase over placebo after 12 weeks. Analysis by the percentage of patients achieving at least a 5-point improvement in the KCCQ clinical summary score (the threshold for a clinically meaningful improvement) showed that about 45% of patients treated with dapagliflozin reached this mark compared with roughly 35% of patients in the placebo arm, indicating a number needed to treat of nine to have one additional patient achieve this threshold after 12 weeks. Average improvement in 6-minute walk distance was about 20 m with dapagliflozin compared with placebo.

No heterogeneity of effect by baseline ejection fraction.

Subgroup analyses showed no heterogeneity of response across 12 different ways of subdividing the study population, including age, sex, race, diabetes status, and BMI. The median left ventricular ejection fraction among enrolled patients was 60%, and the findings showed identical KCCQ improvements among patients with ejection fractions less than the median and those with an ejection fraction above the median.

This last finding was especially relevant because the EMPEROR-Preserved results showed a possible signal of heterogeneity by ejection fraction and an attenuated effect among patients with HFpEF and an ejection fraction above the 60%-65% range, although the certainty of this finding is currently controversial.

The impact of empagliflozin on KCCQ clinical summary score in EMPEROR-Preserved showed an average incremental improvement of 1.32 points compared with placebo, a significant difference, but more modest than the increment from dapagliflozin treatment seen in PRESERVED-HF. Dr. Kosiborod hypothesized that this difference might be mostly because of the different patient populations enrolled in the two studies.

Dr. Kosiborod noted that a report on the PRESERVED-HF results will soon appear in Nature Medicine.

PRESERVED-HF was funded by AstraZeneca, which markets dapagliflozin (Farxiga), but the trials’ design and conduct were independent of this funding source. Dr. Kosiborod has been a consultant to AstraZeneca and numerous other companies, and he has received research funding from AstraZeneca and Boehringer Ingelheim. Dr. Packer has had financial relationships with AstraZeneca and numerous other companies.

mzoler@mdedge.com

The SGLT2 inhibitor dapagliflozin scored a clear win in a randomized, controlled trial with more than 300 U.S. patients with heart failure with preserved ejection fraction (HFpEF), showing a significant and clinically meaningful benefit for the primary endpoint, a KCCQ measure of symptoms and physical limitations, after 12 weeks of treatment.

These results in the PRESERVED-HF study follow closely on the heals of the initial report from the EMPEROR-Preserved trial that showed a benefit from a different sodium-glucose cotransporter 2 (SGLT2) inhibitor, empagliflozin (Jardiance) in nearly 6,000 randomized patients for the primary endpoint of preventing cardiovascular death or hospitalizations for heart failure.

In PRESERVED-HF, patients with HFpEF who received a standard, once-daily dose of dapagliflozin (Farxiga) had an average 5.8-point improvement in their condition as measured by the Kansas City Cardiomyopathy Questionnaire clinical summary score (KCCQ-CS), the study’s primary endpoint.

This is “the first study to demonstrate that an SGLT2 inhibitor dapagliflozin significantly improves symptoms, physical limitations, and 6-minute walking distance in patients with HFpEF,” Mikhail N. Kosiborod, MD, reported at the annual scientific meeting of the Heart Failure Society of America. The secondary endpoint of 6-minute walking distance “has been very difficult to improve in many previous studies of other treatments” tested in patients with HFpEF, noted Dr. Kosiborod, a cardiologist and codirector of the Cardiometabolic Center of Excellence at Saint Luke’s Mid-America Heart Institute.

The results are “highly complementary” to the findings from large outcome trials, such as the findings from EMPEROR-Preserved, he said, and collectively the recent findings from these studies of SGLT2 inhibitors in patients with HFpEF identify drugs in this class as a “new treatment option” for patients with a disorder that until now had no treatment with unequivocally proven efficacy and safety.
 

‘Impressive and unprecedented’ findings

The findings are “really impressive and unprecedented,” said Milton Packer, MD, a cardiologist at Baylor University Medical Center in Dallas who was not involved in the study. “This is the largest KCCQ benefit ever seen in either patients with HFpEF or in patients with heart failure with reduced ejection fraction,” said Dr. Packer, one of the investigators who led the EMPEROR-Preserved trial.

MDedge News

PRESERVED-HF randomized 324 patients diagnosed with heart failure and with a left ventricular ejection fraction of 45% or higher at any of 26 U.S. centers, with 304 patients completing the planned final analysis after 12 weeks on treatment. Patients could be in New York Heart Association (NYHA) functional class II-IV, they had to have a baseline N-terminal pro-brain natriuretic peptide (NT-proBNP) level of at least 225 pg/mL (or higher if they also had atrial fibrillation), and they required at least one of three markers of established heart failure: recent hospitalization for heart failure or an urgent outpatient visit that required treatment with an IV diuretic, elevated filling pressure measured by left or right catheterization, or structural heart disease detected by echocardiography.

The average age of the enrolled patients was 70 years, and they had been diagnosed with heart failure for about 3 years; 57% were women, 30% were African American, and their median body mass index was 35 kg/m². Roughly 42% had NYHA class III or IV disease, 56% had type 2 diabetes, their median estimated glomerular filtration rate was about 55 mL/min per 1.73m², their median KCCQ-CS score at baseline was about 62, and their average 6-minute walk distance was 244 m.

These and other features of the enrolled population define a distinctly U.S. patient population, stressed Dr. Kosiborod, professor of medicine at the University of Missouri–Kansas City.

“The patients we enrolled are the patients we see in U.S. clinical practice,” he said in an interview. Importantly, the patient profile of a median BMI of 35 kg/m², a median KCCQ-CS score of 62 – “quite low,” noted Dr. Kosiborod – and having more than 40% of patients in NYHA functional class III defines a study population with a substantially greater burden of obesity, symptoms, and functional impairment compared with those enrolled in prior trials involving patients with HFpEF such as EMPEROR-Preserved.
 

Results complement findings from larger trials

PRESERVED-HF was an investigator-initiated study designed to inform clinical practice, not as a pivotal trial like EMPEROR-Preserved, which aims to gather evidence to support a new indication for regulatory approval. (On Sept. 9, 2021, the Food and Drug Administration granted empagliflozin “breakthrough therapy” status for treating HFpEF based on the EMPEROR-Preserved results, which will fast-track the agency’s decision on this indication.)

Dr. Kosiborod noted that he and his associates designed PRESERVED-HF with adequate patient numbers to power a statistically valid assessment of effect on KCCQ-CS score. While the new findings will not by themselves lead to a new indication for dapagliflozin to treat patients with HFpEF, they will potentially complement the pending results of another trial, DELIVER, by showing efficacy and safety in a uniquely U.S. patient population. DELIVER is a pivotal, global trial of dapagliflozin in more than 6,000 patients with HFpEF that’s on track to report findings in 2022.

Dr. Kosiborod also stressed that dapagliflozin has U.S.-approved indications for treating patients with type 2 diabetes, and for patients with chronic kidney disease, and that a majority of patients enrolled in PRESERVED-HF had one or both of these conditions. That makes the new findings especially compelling for patients with either type 2 diabetes or chronic kidney disease and HFpEF who are not already receiving an SGLT2 inhibitor.

Other findings that he reported showed a range of benefits consistent with the primary endpoint, including the KCCQ overall summary score, which also showed a significant 4.5-point average increase over placebo after 12 weeks. Analysis by the percentage of patients achieving at least a 5-point improvement in the KCCQ clinical summary score (the threshold for a clinically meaningful improvement) showed that about 45% of patients treated with dapagliflozin reached this mark compared with roughly 35% of patients in the placebo arm, indicating a number needed to treat of nine to have one additional patient achieve this threshold after 12 weeks. Average improvement in 6-minute walk distance was about 20 m with dapagliflozin compared with placebo.

No heterogeneity of effect by baseline ejection fraction.

Subgroup analyses showed no heterogeneity of response across 12 different ways of subdividing the study population, including age, sex, race, diabetes status, and BMI. The median left ventricular ejection fraction among enrolled patients was 60%, and the findings showed identical KCCQ improvements among patients with ejection fractions less than the median and those with an ejection fraction above the median.

This last finding was especially relevant because the EMPEROR-Preserved results showed a possible signal of heterogeneity by ejection fraction and an attenuated effect among patients with HFpEF and an ejection fraction above the 60%-65% range, although the certainty of this finding is currently controversial.

The impact of empagliflozin on KCCQ clinical summary score in EMPEROR-Preserved showed an average incremental improvement of 1.32 points compared with placebo, a significant difference, but more modest than the increment from dapagliflozin treatment seen in PRESERVED-HF. Dr. Kosiborod hypothesized that this difference might be mostly because of the different patient populations enrolled in the two studies.

Dr. Kosiborod noted that a report on the PRESERVED-HF results will soon appear in Nature Medicine.

PRESERVED-HF was funded by AstraZeneca, which markets dapagliflozin (Farxiga), but the trials’ design and conduct were independent of this funding source. Dr. Kosiborod has been a consultant to AstraZeneca and numerous other companies, and he has received research funding from AstraZeneca and Boehringer Ingelheim. Dr. Packer has had financial relationships with AstraZeneca and numerous other companies.

mzoler@mdedge.com

The SGLT2 inhibitor dapagliflozin scored a clear win in a randomized, controlled trial with more than 300 U.S. patients with heart failure with preserved ejection fraction (HFpEF), showing a significant and clinically meaningful benefit for the primary endpoint, a KCCQ measure of symptoms and physical limitations, after 12 weeks of treatment.

These results in the PRESERVED-HF study follow closely on the heals of the initial report from the EMPEROR-Preserved trial that showed a benefit from a different sodium-glucose cotransporter 2 (SGLT2) inhibitor, empagliflozin (Jardiance) in nearly 6,000 randomized patients for the primary endpoint of preventing cardiovascular death or hospitalizations for heart failure.

In PRESERVED-HF, patients with HFpEF who received a standard, once-daily dose of dapagliflozin (Farxiga) had an average 5.8-point improvement in their condition as measured by the Kansas City Cardiomyopathy Questionnaire clinical summary score (KCCQ-CS), the study’s primary endpoint.

This is “the first study to demonstrate that an SGLT2 inhibitor dapagliflozin significantly improves symptoms, physical limitations, and 6-minute walking distance in patients with HFpEF,” Mikhail N. Kosiborod, MD, reported at the annual scientific meeting of the Heart Failure Society of America. The secondary endpoint of 6-minute walking distance “has been very difficult to improve in many previous studies of other treatments” tested in patients with HFpEF, noted Dr. Kosiborod, a cardiologist and codirector of the Cardiometabolic Center of Excellence at Saint Luke’s Mid-America Heart Institute.

The results are “highly complementary” to the findings from large outcome trials, such as the findings from EMPEROR-Preserved, he said, and collectively the recent findings from these studies of SGLT2 inhibitors in patients with HFpEF identify drugs in this class as a “new treatment option” for patients with a disorder that until now had no treatment with unequivocally proven efficacy and safety.
 

‘Impressive and unprecedented’ findings

The findings are “really impressive and unprecedented,” said Milton Packer, MD, a cardiologist at Baylor University Medical Center in Dallas who was not involved in the study. “This is the largest KCCQ benefit ever seen in either patients with HFpEF or in patients with heart failure with reduced ejection fraction,” said Dr. Packer, one of the investigators who led the EMPEROR-Preserved trial.

MDedge News

PRESERVED-HF randomized 324 patients diagnosed with heart failure and with a left ventricular ejection fraction of 45% or higher at any of 26 U.S. centers, with 304 patients completing the planned final analysis after 12 weeks on treatment. Patients could be in New York Heart Association (NYHA) functional class II-IV, they had to have a baseline N-terminal pro-brain natriuretic peptide (NT-proBNP) level of at least 225 pg/mL (or higher if they also had atrial fibrillation), and they required at least one of three markers of established heart failure: recent hospitalization for heart failure or an urgent outpatient visit that required treatment with an IV diuretic, elevated filling pressure measured by left or right catheterization, or structural heart disease detected by echocardiography.

The average age of the enrolled patients was 70 years, and they had been diagnosed with heart failure for about 3 years; 57% were women, 30% were African American, and their median body mass index was 35 kg/m². Roughly 42% had NYHA class III or IV disease, 56% had type 2 diabetes, their median estimated glomerular filtration rate was about 55 mL/min per 1.73m², their median KCCQ-CS score at baseline was about 62, and their average 6-minute walk distance was 244 m.

These and other features of the enrolled population define a distinctly U.S. patient population, stressed Dr. Kosiborod, professor of medicine at the University of Missouri–Kansas City.

“The patients we enrolled are the patients we see in U.S. clinical practice,” he said in an interview. Importantly, the patient profile of a median BMI of 35 kg/m², a median KCCQ-CS score of 62 – “quite low,” noted Dr. Kosiborod – and having more than 40% of patients in NYHA functional class III defines a study population with a substantially greater burden of obesity, symptoms, and functional impairment compared with those enrolled in prior trials involving patients with HFpEF such as EMPEROR-Preserved.
 

Results complement findings from larger trials

PRESERVED-HF was an investigator-initiated study designed to inform clinical practice, not as a pivotal trial like EMPEROR-Preserved, which aims to gather evidence to support a new indication for regulatory approval. (On Sept. 9, 2021, the Food and Drug Administration granted empagliflozin “breakthrough therapy” status for treating HFpEF based on the EMPEROR-Preserved results, which will fast-track the agency’s decision on this indication.)

Dr. Kosiborod noted that he and his associates designed PRESERVED-HF with adequate patient numbers to power a statistically valid assessment of effect on KCCQ-CS score. While the new findings will not by themselves lead to a new indication for dapagliflozin to treat patients with HFpEF, they will potentially complement the pending results of another trial, DELIVER, by showing efficacy and safety in a uniquely U.S. patient population. DELIVER is a pivotal, global trial of dapagliflozin in more than 6,000 patients with HFpEF that’s on track to report findings in 2022.

Dr. Kosiborod also stressed that dapagliflozin has U.S.-approved indications for treating patients with type 2 diabetes, and for patients with chronic kidney disease, and that a majority of patients enrolled in PRESERVED-HF had one or both of these conditions. That makes the new findings especially compelling for patients with either type 2 diabetes or chronic kidney disease and HFpEF who are not already receiving an SGLT2 inhibitor.

Other findings that he reported showed a range of benefits consistent with the primary endpoint, including the KCCQ overall summary score, which also showed a significant 4.5-point average increase over placebo after 12 weeks. Analysis by the percentage of patients achieving at least a 5-point improvement in the KCCQ clinical summary score (the threshold for a clinically meaningful improvement) showed that about 45% of patients treated with dapagliflozin reached this mark compared with roughly 35% of patients in the placebo arm, indicating a number needed to treat of nine to have one additional patient achieve this threshold after 12 weeks. Average improvement in 6-minute walk distance was about 20 m with dapagliflozin compared with placebo.

No heterogeneity of effect by baseline ejection fraction.

Subgroup analyses showed no heterogeneity of response across 12 different ways of subdividing the study population, including age, sex, race, diabetes status, and BMI. The median left ventricular ejection fraction among enrolled patients was 60%, and the findings showed identical KCCQ improvements among patients with ejection fractions less than the median and those with an ejection fraction above the median.

This last finding was especially relevant because the EMPEROR-Preserved results showed a possible signal of heterogeneity by ejection fraction and an attenuated effect among patients with HFpEF and an ejection fraction above the 60%-65% range, although the certainty of this finding is currently controversial.

The impact of empagliflozin on KCCQ clinical summary score in EMPEROR-Preserved showed an average incremental improvement of 1.32 points compared with placebo, a significant difference, but more modest than the increment from dapagliflozin treatment seen in PRESERVED-HF. Dr. Kosiborod hypothesized that this difference might be mostly because of the different patient populations enrolled in the two studies.

Dr. Kosiborod noted that a report on the PRESERVED-HF results will soon appear in Nature Medicine.

PRESERVED-HF was funded by AstraZeneca, which markets dapagliflozin (Farxiga), but the trials’ design and conduct were independent of this funding source. Dr. Kosiborod has been a consultant to AstraZeneca and numerous other companies, and he has received research funding from AstraZeneca and Boehringer Ingelheim. Dr. Packer has had financial relationships with AstraZeneca and numerous other companies.

mzoler@mdedge.com

Women cardiologists receive dramatically smaller payments from the U.S. Centers for Medicare & Medicaid Services (CMS) than their male counterparts, new research suggests.

An analysis of 2016 claims data revealed male cardiologists received on average 45% more reimbursement than women in the inpatient setting, with the median payment 39% higher ($62,897 vs. $45,288).

In the outpatient setting, men received on average 62% more annual CMS payments, with the median payment 75% higher ($91,053 vs. $51,975; P < .001 for both).

The difference remained significant after the exclusion of the top and bottom 2.5% of earning physicians and cardiology subspecialties, like electrophysiology and interventional cardiology, with high procedural volumes and greater gender imbalances.

“This is one study among others which demonstrates a wage gap between men and women in medicine in cardiology,” lead author Inbar Raber, MD, Beth Israel Deaconess Medical Center, Boston, said in an interview. “I hope by increasing awareness [and] understanding of possible etiologies, it will enable some sustainable solutions, and those include access to additional support staff and equitable models surrounding parental leave and childcare support.”

The study, published online September 8 in JAMA Cardiology, comes on the heels of a recent cross-sectional analysis that put cardiology at the bottom of 13 internal medicine subspecialties with just 21% female faculty representation and one of only three specialties in which women’s median salaries did not reach 90% of men’s.

The new findings build on a 2017 report that showed Medicare payments to women physicians in 2013 were 55% of those to male physicians across all specialties.  

“It can be disheartening, especially as an early career woman cardiologist, seeing these differences, but I think the responsibility on all of us is to take these observations and really try to understand more deeply why they exist,” Nosheen Reza, MD, from the University of Pennsylvania, Philadelphia, and coauthor of the cross-sectional analysis, told this news organization.

Several factors could be contributing to the disparity, but “it’s not gender discrimination from Medicare,” Dr. Raber said. “The gap in reimbursement is really driven by the types and the volume of charges submitted.”

Indeed, a direct comparison of the three most common inpatient and outpatient billing codes showed no difference in payments between the sexes.

Men, however, submitted 24% more median inpatient charges to CMS than women (1,190 vs. 959), and 94% more outpatient charges (1,685 vs. 870).

Men also submitted slightly more unique billing codes (median inpatient, 10 vs. 9; median outpatient, 11 vs. 8).

Notably, women made up just 13% of the 17,524 cardiologists who received CMS payments in the inpatient setting in 2016 and 13% of the 16,929 cardiologists who did so in the outpatient setting.

Louisiana had the dubious distinction of having the largest gender gap in mean CMS payments, with male cardiologists earning $145,323 (235%) more than women, whereas women cardiologists in Vermont out-earned men by $31,483 (38%).

Overall, male cardiologists had more years in practice than women cardiologists and cared for slightly older Medicare beneficiaries.

Differences in CMS payments persisted, however, after adjustment for years since graduation, physician subspecialty, number of charges, number of unique billing codes, and patient complexity. The resulting β coefficient was -0.06, which translates into women receiving an average of 94% of the CMS payments received by men.

“The first takeaway, if you were really crass and focused on the bottom line, might be: ‘Hey, let me get a few more male cardiologists because they’re going to bring more into the organization.’ But we shouldn’t do that because, unless you link these data with quality outcomes, they’re an interesting observation and hypothesis-generating,” said Sharonne Hayes, MD, coauthor of the 2017 report and professor of cardiovascular medicine at Mayo Clinic in Rochester, Minn., where she has served as director of diversity and inclusion for a decade.

She noted that there are multiple examples that the style of medicine women practice, on average, may be more effective, may be more outcomes based, and may save lives, as suggested by a recent analysis of hospitalized Medicare beneficiaries.

“The gap was not much different, like within 1% or so, but when you take that over the literally millions of Medicare patients cared for each year by hospitalists, that’s a substantial number of people,” Dr. Hayes said. “So, I think we need to take a step back, and we have to include these observations on studies like this and better understand the compensation gaps.”

She pointed out that the present study lacks data on full-time-equivalent status but that female physicians are more likely to work part-time, thus reducing the volume of claims.

Women might also care for different patient populations. “I practice in a women’s heart clinic and take care of [spontaneous coronary artery dissection] SCAD patients where the average age of SCAD is 42. So, the vast majority of patients I see on a day-to-day basis aren’t going to be Medicare age,” observed Dr. Hayes.

The differences in charges might also reflect the increased obligations in nonreimbursed work that women can have, Dr. Raber said. These can be things like mentoring, teaching roles, and serving on committees, which is a hypothesis supported by a 2021 study that showed women physicians spend more time on these “citizenship tasks” than men.

Finally, there could be organizational barriers that affect women’s clinical volumes, including less access to support from health care personnel. Added support is especially important, though, amid a 100-year pandemic, the women agreed.

“Within the first year of the pandemic, we saw women leaving the workforce in droves across all sectors, including medicine, including academic medicine. And, as the pandemic goes on without any signs of abatement, those threats continue to exist and continue to be amplified,” Dr. Reza said.

The groundswell of support surrounding the importance of diversity, equity, and inclusion initiatives across the board has helped bring attention to the issue, she said. Some institutions, including the National Institutes of Health, are making efforts to extend relief to women with young families, caregivers, or those in academic medicine who, for example, need extensions on grants or bridge funding.

“There’s certainly a lot left to do, but I do think within the last year, there’s been an acceleration of literature that has come out, not only pointing out the disparities, but pointing out that perhaps women physicians do have better outcomes and are better liked by their patients and that losing women in the workforce would be a huge detriment to the field overall,” Dr. Reza said.

Dr. Raber, Dr. Reza, and Dr. Hayes reports no relevant financial relationships. Coauthor conflict of interest disclosures are listed in the paper.

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

Women cardiologists receive dramatically smaller payments from the U.S. Centers for Medicare & Medicaid Services (CMS) than their male counterparts, new research suggests.

An analysis of 2016 claims data revealed male cardiologists received on average 45% more reimbursement than women in the inpatient setting, with the median payment 39% higher ($62,897 vs. $45,288).

In the outpatient setting, men received on average 62% more annual CMS payments, with the median payment 75% higher ($91,053 vs. $51,975; P < .001 for both).

The difference remained significant after the exclusion of the top and bottom 2.5% of earning physicians and cardiology subspecialties, like electrophysiology and interventional cardiology, with high procedural volumes and greater gender imbalances.

“This is one study among others which demonstrates a wage gap between men and women in medicine in cardiology,” lead author Inbar Raber, MD, Beth Israel Deaconess Medical Center, Boston, said in an interview. “I hope by increasing awareness [and] understanding of possible etiologies, it will enable some sustainable solutions, and those include access to additional support staff and equitable models surrounding parental leave and childcare support.”

The study, published online September 8 in JAMA Cardiology, comes on the heels of a recent cross-sectional analysis that put cardiology at the bottom of 13 internal medicine subspecialties with just 21% female faculty representation and one of only three specialties in which women’s median salaries did not reach 90% of men’s.

The new findings build on a 2017 report that showed Medicare payments to women physicians in 2013 were 55% of those to male physicians across all specialties.  

“It can be disheartening, especially as an early career woman cardiologist, seeing these differences, but I think the responsibility on all of us is to take these observations and really try to understand more deeply why they exist,” Nosheen Reza, MD, from the University of Pennsylvania, Philadelphia, and coauthor of the cross-sectional analysis, told this news organization.

Several factors could be contributing to the disparity, but “it’s not gender discrimination from Medicare,” Dr. Raber said. “The gap in reimbursement is really driven by the types and the volume of charges submitted.”

Indeed, a direct comparison of the three most common inpatient and outpatient billing codes showed no difference in payments between the sexes.

Men, however, submitted 24% more median inpatient charges to CMS than women (1,190 vs. 959), and 94% more outpatient charges (1,685 vs. 870).

Men also submitted slightly more unique billing codes (median inpatient, 10 vs. 9; median outpatient, 11 vs. 8).

Notably, women made up just 13% of the 17,524 cardiologists who received CMS payments in the inpatient setting in 2016 and 13% of the 16,929 cardiologists who did so in the outpatient setting.

Louisiana had the dubious distinction of having the largest gender gap in mean CMS payments, with male cardiologists earning $145,323 (235%) more than women, whereas women cardiologists in Vermont out-earned men by $31,483 (38%).

Overall, male cardiologists had more years in practice than women cardiologists and cared for slightly older Medicare beneficiaries.

Differences in CMS payments persisted, however, after adjustment for years since graduation, physician subspecialty, number of charges, number of unique billing codes, and patient complexity. The resulting β coefficient was -0.06, which translates into women receiving an average of 94% of the CMS payments received by men.

“The first takeaway, if you were really crass and focused on the bottom line, might be: ‘Hey, let me get a few more male cardiologists because they’re going to bring more into the organization.’ But we shouldn’t do that because, unless you link these data with quality outcomes, they’re an interesting observation and hypothesis-generating,” said Sharonne Hayes, MD, coauthor of the 2017 report and professor of cardiovascular medicine at Mayo Clinic in Rochester, Minn., where she has served as director of diversity and inclusion for a decade.

She noted that there are multiple examples that the style of medicine women practice, on average, may be more effective, may be more outcomes based, and may save lives, as suggested by a recent analysis of hospitalized Medicare beneficiaries.

“The gap was not much different, like within 1% or so, but when you take that over the literally millions of Medicare patients cared for each year by hospitalists, that’s a substantial number of people,” Dr. Hayes said. “So, I think we need to take a step back, and we have to include these observations on studies like this and better understand the compensation gaps.”

She pointed out that the present study lacks data on full-time-equivalent status but that female physicians are more likely to work part-time, thus reducing the volume of claims.

Women might also care for different patient populations. “I practice in a women’s heart clinic and take care of [spontaneous coronary artery dissection] SCAD patients where the average age of SCAD is 42. So, the vast majority of patients I see on a day-to-day basis aren’t going to be Medicare age,” observed Dr. Hayes.

The differences in charges might also reflect the increased obligations in nonreimbursed work that women can have, Dr. Raber said. These can be things like mentoring, teaching roles, and serving on committees, which is a hypothesis supported by a 2021 study that showed women physicians spend more time on these “citizenship tasks” than men.

Finally, there could be organizational barriers that affect women’s clinical volumes, including less access to support from health care personnel. Added support is especially important, though, amid a 100-year pandemic, the women agreed.

“Within the first year of the pandemic, we saw women leaving the workforce in droves across all sectors, including medicine, including academic medicine. And, as the pandemic goes on without any signs of abatement, those threats continue to exist and continue to be amplified,” Dr. Reza said.

The groundswell of support surrounding the importance of diversity, equity, and inclusion initiatives across the board has helped bring attention to the issue, she said. Some institutions, including the National Institutes of Health, are making efforts to extend relief to women with young families, caregivers, or those in academic medicine who, for example, need extensions on grants or bridge funding.

“There’s certainly a lot left to do, but I do think within the last year, there’s been an acceleration of literature that has come out, not only pointing out the disparities, but pointing out that perhaps women physicians do have better outcomes and are better liked by their patients and that losing women in the workforce would be a huge detriment to the field overall,” Dr. Reza said.

Dr. Raber, Dr. Reza, and Dr. Hayes reports no relevant financial relationships. Coauthor conflict of interest disclosures are listed in the paper.

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

Women cardiologists receive dramatically smaller payments from the U.S. Centers for Medicare & Medicaid Services (CMS) than their male counterparts, new research suggests.

An analysis of 2016 claims data revealed male cardiologists received on average 45% more reimbursement than women in the inpatient setting, with the median payment 39% higher ($62,897 vs. $45,288).

In the outpatient setting, men received on average 62% more annual CMS payments, with the median payment 75% higher ($91,053 vs. $51,975; P < .001 for both).

The difference remained significant after the exclusion of the top and bottom 2.5% of earning physicians and cardiology subspecialties, like electrophysiology and interventional cardiology, with high procedural volumes and greater gender imbalances.

“This is one study among others which demonstrates a wage gap between men and women in medicine in cardiology,” lead author Inbar Raber, MD, Beth Israel Deaconess Medical Center, Boston, said in an interview. “I hope by increasing awareness [and] understanding of possible etiologies, it will enable some sustainable solutions, and those include access to additional support staff and equitable models surrounding parental leave and childcare support.”

The study, published online September 8 in JAMA Cardiology, comes on the heels of a recent cross-sectional analysis that put cardiology at the bottom of 13 internal medicine subspecialties with just 21% female faculty representation and one of only three specialties in which women’s median salaries did not reach 90% of men’s.

The new findings build on a 2017 report that showed Medicare payments to women physicians in 2013 were 55% of those to male physicians across all specialties.  

“It can be disheartening, especially as an early career woman cardiologist, seeing these differences, but I think the responsibility on all of us is to take these observations and really try to understand more deeply why they exist,” Nosheen Reza, MD, from the University of Pennsylvania, Philadelphia, and coauthor of the cross-sectional analysis, told this news organization.

Several factors could be contributing to the disparity, but “it’s not gender discrimination from Medicare,” Dr. Raber said. “The gap in reimbursement is really driven by the types and the volume of charges submitted.”

Indeed, a direct comparison of the three most common inpatient and outpatient billing codes showed no difference in payments between the sexes.

Men, however, submitted 24% more median inpatient charges to CMS than women (1,190 vs. 959), and 94% more outpatient charges (1,685 vs. 870).

Men also submitted slightly more unique billing codes (median inpatient, 10 vs. 9; median outpatient, 11 vs. 8).

Notably, women made up just 13% of the 17,524 cardiologists who received CMS payments in the inpatient setting in 2016 and 13% of the 16,929 cardiologists who did so in the outpatient setting.

Louisiana had the dubious distinction of having the largest gender gap in mean CMS payments, with male cardiologists earning $145,323 (235%) more than women, whereas women cardiologists in Vermont out-earned men by $31,483 (38%).

Overall, male cardiologists had more years in practice than women cardiologists and cared for slightly older Medicare beneficiaries.

Differences in CMS payments persisted, however, after adjustment for years since graduation, physician subspecialty, number of charges, number of unique billing codes, and patient complexity. The resulting β coefficient was -0.06, which translates into women receiving an average of 94% of the CMS payments received by men.

“The first takeaway, if you were really crass and focused on the bottom line, might be: ‘Hey, let me get a few more male cardiologists because they’re going to bring more into the organization.’ But we shouldn’t do that because, unless you link these data with quality outcomes, they’re an interesting observation and hypothesis-generating,” said Sharonne Hayes, MD, coauthor of the 2017 report and professor of cardiovascular medicine at Mayo Clinic in Rochester, Minn., where she has served as director of diversity and inclusion for a decade.

She noted that there are multiple examples that the style of medicine women practice, on average, may be more effective, may be more outcomes based, and may save lives, as suggested by a recent analysis of hospitalized Medicare beneficiaries.

“The gap was not much different, like within 1% or so, but when you take that over the literally millions of Medicare patients cared for each year by hospitalists, that’s a substantial number of people,” Dr. Hayes said. “So, I think we need to take a step back, and we have to include these observations on studies like this and better understand the compensation gaps.”

She pointed out that the present study lacks data on full-time-equivalent status but that female physicians are more likely to work part-time, thus reducing the volume of claims.

Women might also care for different patient populations. “I practice in a women’s heart clinic and take care of [spontaneous coronary artery dissection] SCAD patients where the average age of SCAD is 42. So, the vast majority of patients I see on a day-to-day basis aren’t going to be Medicare age,” observed Dr. Hayes.

The differences in charges might also reflect the increased obligations in nonreimbursed work that women can have, Dr. Raber said. These can be things like mentoring, teaching roles, and serving on committees, which is a hypothesis supported by a 2021 study that showed women physicians spend more time on these “citizenship tasks” than men.

Finally, there could be organizational barriers that affect women’s clinical volumes, including less access to support from health care personnel. Added support is especially important, though, amid a 100-year pandemic, the women agreed.

“Within the first year of the pandemic, we saw women leaving the workforce in droves across all sectors, including medicine, including academic medicine. And, as the pandemic goes on without any signs of abatement, those threats continue to exist and continue to be amplified,” Dr. Reza said.

The groundswell of support surrounding the importance of diversity, equity, and inclusion initiatives across the board has helped bring attention to the issue, she said. Some institutions, including the National Institutes of Health, are making efforts to extend relief to women with young families, caregivers, or those in academic medicine who, for example, need extensions on grants or bridge funding.

“There’s certainly a lot left to do, but I do think within the last year, there’s been an acceleration of literature that has come out, not only pointing out the disparities, but pointing out that perhaps women physicians do have better outcomes and are better liked by their patients and that losing women in the workforce would be a huge detriment to the field overall,” Dr. Reza said.

Dr. Raber, Dr. Reza, and Dr. Hayes reports no relevant financial relationships. Coauthor conflict of interest disclosures are listed in the paper.

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

The new guideline on management of heart failure (HF) from the European Society of Cardiology seemed to bear an asterisk or footnote even before its full unveiling in the early hours of ESC Congress 2021.

frankpeters/Getty Images

The document would offer little new in the arena of HF with preserved ejection fraction (HFpEF), so understandably the fast-approaching presentation of a major HFpEF trial – arguably the conference’s marquee event – would feel to some like the elephant in the room.

“I’d like to highlight this unfortunate timing of the guideline, because it’s an hour or 2 before we hear the full story from EMPEROR-Preserved, which I’m sure will change the guidelines,” Faiez Zannad, MD, PhD, University of Lorraine, Vandoeuvre-Les-Nancy, France, said wryly.

Anticipation of the trial’s full presentation was intense as the ESC congress got underway, in part because the top-line and incomplete message from EMPEROR-Preserved had already been released: Patients with HFpEF treated with the sodium-glucose cotransporter 2 inhibitor empagliflozin (Jardiance, Boehringer Ingelheim/Eli Lilly) showed a significant benefit for the primary endpoint of cardiovascular (CV) death or HF hospitalization.

Although empagliflozin is the first medication to achieve that status in a major HFpEF trial, conspicuously absent from the early announcement were the magnitude of “benefit” and any data. Still, the tantalizing top-line results mean that technically, at least, “we have a drug which is effective in reduced and preserved ejection fraction,” Dr. Zannad said.

But the new guideline, published online Aug. 27, 2021, in the European Heart Journal and comprehensively described that day at the congress, was never really expected to consider results from EMPEROR-Reduced. “These new indications do need to go through the regulatory authorities,” such as the European Medicines Agency and the U.S. Food and Drug Administration, observed Carlos Aguiar, MD, Hospital Santa Cruz, Carnaxide, Portugal.

“It does take some time for the whole process to be concluded and, finally, as physicians, being able to implement it in clinical practice,” Dr. Aguiar said as moderator of press briefing prior to the ESC congress.

The ESC guideline’s next iteration or update could well include an SGLT2 inhibitor recommendation that applies beyond the ejection fraction limits of HFrEF. Still, the document summarized that day reflects a number of pivotal concepts with profound treatment implications. Among them are the field’s latest paradigm for medical therapy of HFrEF and the increasingly accepted division of traditional HFpEF into two entities: HF with mildly reduced ejection fraction (HFmrEF); and HFpEF, with its left ventricular ejection fraction (LVEF) threshold raised to 50%.

In fact, HFmrEF in the new document is a drug-therapy indication that barely existed a few years ago but grew in prominence after secondary findings from trials like TOPCAT for spironolactone and PARAGON-HF for sacubitril-valsartan (Entresto, Novartis), an angiotensin-receptor/neprilysin inhibitor (ARNI). Still, the HFmrEF recommendations come with different class and level-of-evidence designations.

Those new guideline features and others in the realm of pharmacologic therapy were summarized by the document’s authors at the 2021 Heart Failure Association of the European Society of Cardiology (ESC-HFA) meeting, and covered at the time by this news organization

The ‘fantastic four’

One of the document’s central recommendations specifies which contemporary drug classes should be initiated, and when, in patients with HFrEF. An ACE inhibitor or ARNI, a beta-blocker, a mineralocorticoid receptor antagonist (MRA), and an SGLT2 inhibitor collectively earned a class I recommendation, “given the importance of these key HFrEF therapies, some of which have been shown to improve outcomes within a month of initiation,” observed Roy S. Gardner, MBChB, MD.

An agent from each of the four classes is to be “commenced and up-titrated as quickly and as safely as possible, whilst using the lowest effective dose of loop diuretic to relieve congestion,” said Dr. Gardner, from Golden Jubilee National Hospital, Clydebank, Scotland, when presenting the full HFrEF portion of the guidelines.

The oral soluble guanylate-cyclase receptor stimulator vericiguat (Verquvo, Merck), which recently emerged from the VICTORIA trial as a modest success for patients with HFrEF and a previous HF hospitalization, gained a class IIb recommendation.

The document’s “simplified algorithm” for managing such patients overall and the advent of SGLT2 inhibitors are new twists in ESC guidelines for HF. But the way the four drug classes are started in patients is key and could take some practitioners time to get used to. There is no prespecified order of initiation.

“We’ve left the door open for clinicians to evaluate the evidence to make sure these four drugs are started, and to tailor how to do it according to the patient,” based on clinical considerations such as blood pressure or renal function, said Theresa A. McDonagh, MD, King’s College London, cochair of the guideline task force.

“The SGLT2 inhibitor trials were done on top of therapy with ACE inhibitors or ARNI, beta-blockers, and MRAs, so some people no doubt will choose to follow a sequenced approach,” Dr. McDonagh said. Other practitioners will consider each patient and attempt to get all four started “as quickly and safely as possible based on the phenotype.”

Importantly, clinicians “should not wait for weeks, months, or years until you have the four drugs in the patient, but you should do this within weeks,” cautioned Johann Bauersachs, MD, Hannover (Germany) Medical School, a discussant for the guideline presentation who is listed as a reviewer on the document.

Although angiotensin-receptor blockers (ARBs) and ACE inhibitors are sometimes thought of as interchangeable, the new guideline does not give them the same weight. “The angiotensin-receptor blocker valsartan is a constituent of the ARNI,” Dr. McDonagh noted. “So, the place of ARBs in heart failure has been downgraded in HFrEF. They are really for those who are intolerant of an ACE inhibitor or an ARNI.”

In practice, ARBs are likely to be used as first-line therapy in some circumstances, observed Dr. Bauersachs. They are “the default option in, unfortunately, many low-income countries that may not afford sacubitril-valsartan. And I know that there are many of them.”
 

Tweaks to device recommendations

The new document contains several new wrinkles in the recommendations for HF device therapy, which should usually be considered only if still appropriate after at least 3 months of optimal medical therapy, Dr. Gardner said.

For example, use of an implantable cardioverter-defibrillator (ICD) has been demoted from its previous class I recommendation to class II, level of evidence A, in patients with nonischemic cardiomyopathy “in light of the data from the DANISH study,” Dr. Gardner said.

The 2016 DANISH trial was noteworthy for questioning the survival benefits of ICDs in patients with nonischemic cardiomyopathy, whether or not they were also receiving cardiac resynchronization therapy (CRT).

The new document also puts greater emphasis on a range of specific CRT patient-selection criteria. Beyond the conventional recommended standards of an LVEF of 35% or less, QRS of at least 150 ms, and left-bundle-branch block on optimal meds, consideration can be given to CRT if the QRS is only 130 ms or greater. “And where it’s appropriate to do so, an ICD could be an option,” Dr. Gardner said.

It also recommends CRT as a replacement for right ventricular pacing in patients with high-degree atrioventricular block. “And this, for the first time, includes patients with atrial fibrillation,” he said. “The previous indications for CRT were in individuals in sinus rhythm.”

The new document recommends that HF in any patient be classified as HFrEF, defined by an LVEF of ≤40%; HFmrEF, defined by an LVEF of 41%-49%; or HFpEF, defined by an LVEF of at least 50%. “Importantly, for all forms, the presence of the clinical syndrome of heart failure is a prerequisite,” observed Carolyn S.P. Lam, MBBS, PhD, Duke-NUS Graduate Medical School, Singapore, at the presentation.

In a critical update from previous guidelines, the term HF with “mid-range” ejection fraction was replaced by the term specifying “mildly reduced” ejection fraction, Dr. Lam noted. The shift retains the acronym but now reflects growing appreciation that HFmrEF patients can benefit from treatments also used in HFrEF, including ACE inhibitors, ARBs, beta-blockers, MRAs, and sacubitril-valsartan, she said.

Support for that relationship comes largely from post hoc subgroup analyses of trials that featured some patients with LVEF 40%-49%. That includes most HFpEF trials represented in the guideline document, but also EMPEROR-Preserved, which saw gains for the primary outcome across the entire range of LVEF above 40%.

The LVEF-based definitions are consistent with a recent HF classification proposal endorsed by the ESC and subspecialty societies in Europe, North America, Japan, India, Australia, New Zealand, and China.

The document doesn’t update recommendations for HFpEF, in which “no treatment has been shown to convincingly reduce mortality or morbidity,” Dr. Lam observed. Still, she noted, the guideline task force “acknowledges that treatment options for HFpEF are being revised even as the guidelines have been published.”

That could be a reference to empagliflozin in EMPEROR-Preserved, but it also refers to the strikingly broad wording of an expanded indication for sacubitril-valsartan in the United States – “to reduce the risk of cardiovascular death and hospitalization for heart failure in adult patients with chronic heart failure” – without specific restrictions on the basis of LVEF. The new indication was announced in early 2021, too late to be considered in the new guidelines.
 

Whither LVEF-based definitions?

During discussion after the guideline presentation, Dr. Zannad speculated on the future of HF classifications based on ventricular function, given trial evidence in recent years that some agents – notably spironolactone, sacubitril-valsartan, and now, apparently, empagliflozin – might be effective in HFpEF as well as HFrEF.

Will the field continue with “LVEF-centric” distinctions across the range of HF, or transition to “some definition in which drug therapies can be used independently across the full spectrum of ejection fraction?” Dr. Zannad posed.

“I think we need to wait and see what some of these trials with the SGLT2 inhibitors are going to show in heart failure with preserved ejection fraction,” Dr. McDonagh replied. “And I think that will be a step for the next guideline, completely redefining heart failure.”

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

The new guideline on management of heart failure (HF) from the European Society of Cardiology seemed to bear an asterisk or footnote even before its full unveiling in the early hours of ESC Congress 2021.

frankpeters/Getty Images

The document would offer little new in the arena of HF with preserved ejection fraction (HFpEF), so understandably the fast-approaching presentation of a major HFpEF trial – arguably the conference’s marquee event – would feel to some like the elephant in the room.

“I’d like to highlight this unfortunate timing of the guideline, because it’s an hour or 2 before we hear the full story from EMPEROR-Preserved, which I’m sure will change the guidelines,” Faiez Zannad, MD, PhD, University of Lorraine, Vandoeuvre-Les-Nancy, France, said wryly.

Anticipation of the trial’s full presentation was intense as the ESC congress got underway, in part because the top-line and incomplete message from EMPEROR-Preserved had already been released: Patients with HFpEF treated with the sodium-glucose cotransporter 2 inhibitor empagliflozin (Jardiance, Boehringer Ingelheim/Eli Lilly) showed a significant benefit for the primary endpoint of cardiovascular (CV) death or HF hospitalization.

Although empagliflozin is the first medication to achieve that status in a major HFpEF trial, conspicuously absent from the early announcement were the magnitude of “benefit” and any data. Still, the tantalizing top-line results mean that technically, at least, “we have a drug which is effective in reduced and preserved ejection fraction,” Dr. Zannad said.

But the new guideline, published online Aug. 27, 2021, in the European Heart Journal and comprehensively described that day at the congress, was never really expected to consider results from EMPEROR-Reduced. “These new indications do need to go through the regulatory authorities,” such as the European Medicines Agency and the U.S. Food and Drug Administration, observed Carlos Aguiar, MD, Hospital Santa Cruz, Carnaxide, Portugal.

“It does take some time for the whole process to be concluded and, finally, as physicians, being able to implement it in clinical practice,” Dr. Aguiar said as moderator of press briefing prior to the ESC congress.

The ESC guideline’s next iteration or update could well include an SGLT2 inhibitor recommendation that applies beyond the ejection fraction limits of HFrEF. Still, the document summarized that day reflects a number of pivotal concepts with profound treatment implications. Among them are the field’s latest paradigm for medical therapy of HFrEF and the increasingly accepted division of traditional HFpEF into two entities: HF with mildly reduced ejection fraction (HFmrEF); and HFpEF, with its left ventricular ejection fraction (LVEF) threshold raised to 50%.

In fact, HFmrEF in the new document is a drug-therapy indication that barely existed a few years ago but grew in prominence after secondary findings from trials like TOPCAT for spironolactone and PARAGON-HF for sacubitril-valsartan (Entresto, Novartis), an angiotensin-receptor/neprilysin inhibitor (ARNI). Still, the HFmrEF recommendations come with different class and level-of-evidence designations.

Those new guideline features and others in the realm of pharmacologic therapy were summarized by the document’s authors at the 2021 Heart Failure Association of the European Society of Cardiology (ESC-HFA) meeting, and covered at the time by this news organization

The ‘fantastic four’

One of the document’s central recommendations specifies which contemporary drug classes should be initiated, and when, in patients with HFrEF. An ACE inhibitor or ARNI, a beta-blocker, a mineralocorticoid receptor antagonist (MRA), and an SGLT2 inhibitor collectively earned a class I recommendation, “given the importance of these key HFrEF therapies, some of which have been shown to improve outcomes within a month of initiation,” observed Roy S. Gardner, MBChB, MD.

An agent from each of the four classes is to be “commenced and up-titrated as quickly and as safely as possible, whilst using the lowest effective dose of loop diuretic to relieve congestion,” said Dr. Gardner, from Golden Jubilee National Hospital, Clydebank, Scotland, when presenting the full HFrEF portion of the guidelines.

The oral soluble guanylate-cyclase receptor stimulator vericiguat (Verquvo, Merck), which recently emerged from the VICTORIA trial as a modest success for patients with HFrEF and a previous HF hospitalization, gained a class IIb recommendation.

The document’s “simplified algorithm” for managing such patients overall and the advent of SGLT2 inhibitors are new twists in ESC guidelines for HF. But the way the four drug classes are started in patients is key and could take some practitioners time to get used to. There is no prespecified order of initiation.

“We’ve left the door open for clinicians to evaluate the evidence to make sure these four drugs are started, and to tailor how to do it according to the patient,” based on clinical considerations such as blood pressure or renal function, said Theresa A. McDonagh, MD, King’s College London, cochair of the guideline task force.

“The SGLT2 inhibitor trials were done on top of therapy with ACE inhibitors or ARNI, beta-blockers, and MRAs, so some people no doubt will choose to follow a sequenced approach,” Dr. McDonagh said. Other practitioners will consider each patient and attempt to get all four started “as quickly and safely as possible based on the phenotype.”

Importantly, clinicians “should not wait for weeks, months, or years until you have the four drugs in the patient, but you should do this within weeks,” cautioned Johann Bauersachs, MD, Hannover (Germany) Medical School, a discussant for the guideline presentation who is listed as a reviewer on the document.

Although angiotensin-receptor blockers (ARBs) and ACE inhibitors are sometimes thought of as interchangeable, the new guideline does not give them the same weight. “The angiotensin-receptor blocker valsartan is a constituent of the ARNI,” Dr. McDonagh noted. “So, the place of ARBs in heart failure has been downgraded in HFrEF. They are really for those who are intolerant of an ACE inhibitor or an ARNI.”

In practice, ARBs are likely to be used as first-line therapy in some circumstances, observed Dr. Bauersachs. They are “the default option in, unfortunately, many low-income countries that may not afford sacubitril-valsartan. And I know that there are many of them.”
 

Tweaks to device recommendations

The new document contains several new wrinkles in the recommendations for HF device therapy, which should usually be considered only if still appropriate after at least 3 months of optimal medical therapy, Dr. Gardner said.

For example, use of an implantable cardioverter-defibrillator (ICD) has been demoted from its previous class I recommendation to class II, level of evidence A, in patients with nonischemic cardiomyopathy “in light of the data from the DANISH study,” Dr. Gardner said.

The 2016 DANISH trial was noteworthy for questioning the survival benefits of ICDs in patients with nonischemic cardiomyopathy, whether or not they were also receiving cardiac resynchronization therapy (CRT).

The new document also puts greater emphasis on a range of specific CRT patient-selection criteria. Beyond the conventional recommended standards of an LVEF of 35% or less, QRS of at least 150 ms, and left-bundle-branch block on optimal meds, consideration can be given to CRT if the QRS is only 130 ms or greater. “And where it’s appropriate to do so, an ICD could be an option,” Dr. Gardner said.

It also recommends CRT as a replacement for right ventricular pacing in patients with high-degree atrioventricular block. “And this, for the first time, includes patients with atrial fibrillation,” he said. “The previous indications for CRT were in individuals in sinus rhythm.”

The new document recommends that HF in any patient be classified as HFrEF, defined by an LVEF of ≤40%; HFmrEF, defined by an LVEF of 41%-49%; or HFpEF, defined by an LVEF of at least 50%. “Importantly, for all forms, the presence of the clinical syndrome of heart failure is a prerequisite,” observed Carolyn S.P. Lam, MBBS, PhD, Duke-NUS Graduate Medical School, Singapore, at the presentation.

In a critical update from previous guidelines, the term HF with “mid-range” ejection fraction was replaced by the term specifying “mildly reduced” ejection fraction, Dr. Lam noted. The shift retains the acronym but now reflects growing appreciation that HFmrEF patients can benefit from treatments also used in HFrEF, including ACE inhibitors, ARBs, beta-blockers, MRAs, and sacubitril-valsartan, she said.

Support for that relationship comes largely from post hoc subgroup analyses of trials that featured some patients with LVEF 40%-49%. That includes most HFpEF trials represented in the guideline document, but also EMPEROR-Preserved, which saw gains for the primary outcome across the entire range of LVEF above 40%.

The LVEF-based definitions are consistent with a recent HF classification proposal endorsed by the ESC and subspecialty societies in Europe, North America, Japan, India, Australia, New Zealand, and China.

The document doesn’t update recommendations for HFpEF, in which “no treatment has been shown to convincingly reduce mortality or morbidity,” Dr. Lam observed. Still, she noted, the guideline task force “acknowledges that treatment options for HFpEF are being revised even as the guidelines have been published.”

That could be a reference to empagliflozin in EMPEROR-Preserved, but it also refers to the strikingly broad wording of an expanded indication for sacubitril-valsartan in the United States – “to reduce the risk of cardiovascular death and hospitalization for heart failure in adult patients with chronic heart failure” – without specific restrictions on the basis of LVEF. The new indication was announced in early 2021, too late to be considered in the new guidelines.
 

Whither LVEF-based definitions?

During discussion after the guideline presentation, Dr. Zannad speculated on the future of HF classifications based on ventricular function, given trial evidence in recent years that some agents – notably spironolactone, sacubitril-valsartan, and now, apparently, empagliflozin – might be effective in HFpEF as well as HFrEF.

Will the field continue with “LVEF-centric” distinctions across the range of HF, or transition to “some definition in which drug therapies can be used independently across the full spectrum of ejection fraction?” Dr. Zannad posed.

“I think we need to wait and see what some of these trials with the SGLT2 inhibitors are going to show in heart failure with preserved ejection fraction,” Dr. McDonagh replied. “And I think that will be a step for the next guideline, completely redefining heart failure.”

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

The new guideline on management of heart failure (HF) from the European Society of Cardiology seemed to bear an asterisk or footnote even before its full unveiling in the early hours of ESC Congress 2021.

frankpeters/Getty Images

The document would offer little new in the arena of HF with preserved ejection fraction (HFpEF), so understandably the fast-approaching presentation of a major HFpEF trial – arguably the conference’s marquee event – would feel to some like the elephant in the room.

“I’d like to highlight this unfortunate timing of the guideline, because it’s an hour or 2 before we hear the full story from EMPEROR-Preserved, which I’m sure will change the guidelines,” Faiez Zannad, MD, PhD, University of Lorraine, Vandoeuvre-Les-Nancy, France, said wryly.

Anticipation of the trial’s full presentation was intense as the ESC congress got underway, in part because the top-line and incomplete message from EMPEROR-Preserved had already been released: Patients with HFpEF treated with the sodium-glucose cotransporter 2 inhibitor empagliflozin (Jardiance, Boehringer Ingelheim/Eli Lilly) showed a significant benefit for the primary endpoint of cardiovascular (CV) death or HF hospitalization.

Although empagliflozin is the first medication to achieve that status in a major HFpEF trial, conspicuously absent from the early announcement were the magnitude of “benefit” and any data. Still, the tantalizing top-line results mean that technically, at least, “we have a drug which is effective in reduced and preserved ejection fraction,” Dr. Zannad said.

But the new guideline, published online Aug. 27, 2021, in the European Heart Journal and comprehensively described that day at the congress, was never really expected to consider results from EMPEROR-Reduced. “These new indications do need to go through the regulatory authorities,” such as the European Medicines Agency and the U.S. Food and Drug Administration, observed Carlos Aguiar, MD, Hospital Santa Cruz, Carnaxide, Portugal.

“It does take some time for the whole process to be concluded and, finally, as physicians, being able to implement it in clinical practice,” Dr. Aguiar said as moderator of press briefing prior to the ESC congress.

The ESC guideline’s next iteration or update could well include an SGLT2 inhibitor recommendation that applies beyond the ejection fraction limits of HFrEF. Still, the document summarized that day reflects a number of pivotal concepts with profound treatment implications. Among them are the field’s latest paradigm for medical therapy of HFrEF and the increasingly accepted division of traditional HFpEF into two entities: HF with mildly reduced ejection fraction (HFmrEF); and HFpEF, with its left ventricular ejection fraction (LVEF) threshold raised to 50%.

In fact, HFmrEF in the new document is a drug-therapy indication that barely existed a few years ago but grew in prominence after secondary findings from trials like TOPCAT for spironolactone and PARAGON-HF for sacubitril-valsartan (Entresto, Novartis), an angiotensin-receptor/neprilysin inhibitor (ARNI). Still, the HFmrEF recommendations come with different class and level-of-evidence designations.

Those new guideline features and others in the realm of pharmacologic therapy were summarized by the document’s authors at the 2021 Heart Failure Association of the European Society of Cardiology (ESC-HFA) meeting, and covered at the time by this news organization

The ‘fantastic four’

One of the document’s central recommendations specifies which contemporary drug classes should be initiated, and when, in patients with HFrEF. An ACE inhibitor or ARNI, a beta-blocker, a mineralocorticoid receptor antagonist (MRA), and an SGLT2 inhibitor collectively earned a class I recommendation, “given the importance of these key HFrEF therapies, some of which have been shown to improve outcomes within a month of initiation,” observed Roy S. Gardner, MBChB, MD.

An agent from each of the four classes is to be “commenced and up-titrated as quickly and as safely as possible, whilst using the lowest effective dose of loop diuretic to relieve congestion,” said Dr. Gardner, from Golden Jubilee National Hospital, Clydebank, Scotland, when presenting the full HFrEF portion of the guidelines.

The oral soluble guanylate-cyclase receptor stimulator vericiguat (Verquvo, Merck), which recently emerged from the VICTORIA trial as a modest success for patients with HFrEF and a previous HF hospitalization, gained a class IIb recommendation.

The document’s “simplified algorithm” for managing such patients overall and the advent of SGLT2 inhibitors are new twists in ESC guidelines for HF. But the way the four drug classes are started in patients is key and could take some practitioners time to get used to. There is no prespecified order of initiation.

“We’ve left the door open for clinicians to evaluate the evidence to make sure these four drugs are started, and to tailor how to do it according to the patient,” based on clinical considerations such as blood pressure or renal function, said Theresa A. McDonagh, MD, King’s College London, cochair of the guideline task force.

“The SGLT2 inhibitor trials were done on top of therapy with ACE inhibitors or ARNI, beta-blockers, and MRAs, so some people no doubt will choose to follow a sequenced approach,” Dr. McDonagh said. Other practitioners will consider each patient and attempt to get all four started “as quickly and safely as possible based on the phenotype.”

Importantly, clinicians “should not wait for weeks, months, or years until you have the four drugs in the patient, but you should do this within weeks,” cautioned Johann Bauersachs, MD, Hannover (Germany) Medical School, a discussant for the guideline presentation who is listed as a reviewer on the document.

Although angiotensin-receptor blockers (ARBs) and ACE inhibitors are sometimes thought of as interchangeable, the new guideline does not give them the same weight. “The angiotensin-receptor blocker valsartan is a constituent of the ARNI,” Dr. McDonagh noted. “So, the place of ARBs in heart failure has been downgraded in HFrEF. They are really for those who are intolerant of an ACE inhibitor or an ARNI.”

In practice, ARBs are likely to be used as first-line therapy in some circumstances, observed Dr. Bauersachs. They are “the default option in, unfortunately, many low-income countries that may not afford sacubitril-valsartan. And I know that there are many of them.”
 

Tweaks to device recommendations

The new document contains several new wrinkles in the recommendations for HF device therapy, which should usually be considered only if still appropriate after at least 3 months of optimal medical therapy, Dr. Gardner said.

For example, use of an implantable cardioverter-defibrillator (ICD) has been demoted from its previous class I recommendation to class II, level of evidence A, in patients with nonischemic cardiomyopathy “in light of the data from the DANISH study,” Dr. Gardner said.

The 2016 DANISH trial was noteworthy for questioning the survival benefits of ICDs in patients with nonischemic cardiomyopathy, whether or not they were also receiving cardiac resynchronization therapy (CRT).

The new document also puts greater emphasis on a range of specific CRT patient-selection criteria. Beyond the conventional recommended standards of an LVEF of 35% or less, QRS of at least 150 ms, and left-bundle-branch block on optimal meds, consideration can be given to CRT if the QRS is only 130 ms or greater. “And where it’s appropriate to do so, an ICD could be an option,” Dr. Gardner said.

It also recommends CRT as a replacement for right ventricular pacing in patients with high-degree atrioventricular block. “And this, for the first time, includes patients with atrial fibrillation,” he said. “The previous indications for CRT were in individuals in sinus rhythm.”

The new document recommends that HF in any patient be classified as HFrEF, defined by an LVEF of ≤40%; HFmrEF, defined by an LVEF of 41%-49%; or HFpEF, defined by an LVEF of at least 50%. “Importantly, for all forms, the presence of the clinical syndrome of heart failure is a prerequisite,” observed Carolyn S.P. Lam, MBBS, PhD, Duke-NUS Graduate Medical School, Singapore, at the presentation.

In a critical update from previous guidelines, the term HF with “mid-range” ejection fraction was replaced by the term specifying “mildly reduced” ejection fraction, Dr. Lam noted. The shift retains the acronym but now reflects growing appreciation that HFmrEF patients can benefit from treatments also used in HFrEF, including ACE inhibitors, ARBs, beta-blockers, MRAs, and sacubitril-valsartan, she said.

Support for that relationship comes largely from post hoc subgroup analyses of trials that featured some patients with LVEF 40%-49%. That includes most HFpEF trials represented in the guideline document, but also EMPEROR-Preserved, which saw gains for the primary outcome across the entire range of LVEF above 40%.

The LVEF-based definitions are consistent with a recent HF classification proposal endorsed by the ESC and subspecialty societies in Europe, North America, Japan, India, Australia, New Zealand, and China.

The document doesn’t update recommendations for HFpEF, in which “no treatment has been shown to convincingly reduce mortality or morbidity,” Dr. Lam observed. Still, she noted, the guideline task force “acknowledges that treatment options for HFpEF are being revised even as the guidelines have been published.”

That could be a reference to empagliflozin in EMPEROR-Preserved, but it also refers to the strikingly broad wording of an expanded indication for sacubitril-valsartan in the United States – “to reduce the risk of cardiovascular death and hospitalization for heart failure in adult patients with chronic heart failure” – without specific restrictions on the basis of LVEF. The new indication was announced in early 2021, too late to be considered in the new guidelines.
 

Whither LVEF-based definitions?

During discussion after the guideline presentation, Dr. Zannad speculated on the future of HF classifications based on ventricular function, given trial evidence in recent years that some agents – notably spironolactone, sacubitril-valsartan, and now, apparently, empagliflozin – might be effective in HFpEF as well as HFrEF.

Will the field continue with “LVEF-centric” distinctions across the range of HF, or transition to “some definition in which drug therapies can be used independently across the full spectrum of ejection fraction?” Dr. Zannad posed.

“I think we need to wait and see what some of these trials with the SGLT2 inhibitors are going to show in heart failure with preserved ejection fraction,” Dr. McDonagh replied. “And I think that will be a step for the next guideline, completely redefining heart failure.”

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