User login
Acetaminophen beats fentanyl in STEMI
Swapping out intravenous fentanyl in favor of IV acetaminophen in patients with ST-elevation MI (STEMI) provides comparable pain relief but with desirably higher blood levels of ticagrelor both immediately after primary percutaneous intervention and 1 hour post procedure.
That’s according to results of the Dutch ON-TIME 3 trial, presented by Anne H. Tavenier, MD, at the virtual annual meeting of the European Association of Percutaneous Cardiovascular Interventions.
“Our trial results have implications for the prehospital treatment of STEMI patients,” said Dr. Tavenier, a cardiologist at the Isala Clinic in Zwolle, the Netherlands.
The explanation for the success of this novel STEMI pain management strategy? The synthetic opioid fentanyl impairs gastrointestinal absorption of oral P2Y12 receptor antagonists such as ticagrelor. Opiates do so as well, whereas acetaminophen does not, she explained.
The potent platelet inhibition provided by oral P2Y12 inhibitors is crucial to successful primary PCI for STEMI. But these platelet inhibitory effects are inherently slowed in STEMI patients owing to hemodynamic changes and delayed GI absorption. And even though both American College of Cardiology/American Heart Association and European Society of Cardiology guidelines recommend the use of opioids for pain control in STEMI patients, the fact is that these medications further delay the absorption of oral P2Y12 inhibitors. And this delay is further exacerbated by the nausea and vomiting which are common side effects of IV fentanyl, she continued.
The impetus for the ON-TIME 3 trial was straightforward, the cardiologist said: “For years, STEMI patients have been treated with morphine or morphinelike drugs like fentanyl because of pain or sympathetic stress. To date, trials investigating alternative analgesics to opioids have been scarce.”
ON-TIME 3 was a multicenter, open-label, phase 4 clinical trial in which 195 STEMI patients with a self-reported pain score of at least 4 on a 0-10 scale received crushed ticagrelor in the ambulance along with either 1,000 mg of IV acetaminophen or fentanyl at 1-2 mcg/kg.
Ticagrelor blood levels were significantly higher in the IV acetaminophen group when measured just prior to primary PCI (151 ng/mL versus 60 ng/mL in the IV fentanyl group; immediately after PCI (326 versus 115 ng/mL), and 1 hour post PCI (488 versus 372 ng/mL).
However, there was no significant between-group difference in levels of platelet reactivity units measured immediately after primary PCI, Dr. Tavenier added.
Discussant Christoph K. Naber, MD, PhD, confessed that prior to ON-TIME 3 he was unaware that administering opioids to STEMI patients results in delayed absorption of oral P2Y12 inhibitors. Upon delving into the literature, however, he found that this is indeed a well-documented problem.
“The open question I have about this very elegant trial is whether the increased P2Y12 levels will translate into a measurable difference in clinical outcomes,” said Dr. Naber, an interventional cardiologist at the Wilhemshaven (Germany) Clinic.
The answer to that question would require a larger, longer-term trial. And he’s disinclined to wait around for that to happen.
“I think when we look at the risk balance, the risk of switching from an opioid to acetaminophen, if it works for the patient, is rather low. So this might be something to introduce in my practice,” the cardiologist said.
Dr. Tavenier and Dr. Naber reported having no financial conflicts of interest.
SOURCE: Tavenier AH. EuroPCR 2020.
Swapping out intravenous fentanyl in favor of IV acetaminophen in patients with ST-elevation MI (STEMI) provides comparable pain relief but with desirably higher blood levels of ticagrelor both immediately after primary percutaneous intervention and 1 hour post procedure.
That’s according to results of the Dutch ON-TIME 3 trial, presented by Anne H. Tavenier, MD, at the virtual annual meeting of the European Association of Percutaneous Cardiovascular Interventions.
“Our trial results have implications for the prehospital treatment of STEMI patients,” said Dr. Tavenier, a cardiologist at the Isala Clinic in Zwolle, the Netherlands.
The explanation for the success of this novel STEMI pain management strategy? The synthetic opioid fentanyl impairs gastrointestinal absorption of oral P2Y12 receptor antagonists such as ticagrelor. Opiates do so as well, whereas acetaminophen does not, she explained.
The potent platelet inhibition provided by oral P2Y12 inhibitors is crucial to successful primary PCI for STEMI. But these platelet inhibitory effects are inherently slowed in STEMI patients owing to hemodynamic changes and delayed GI absorption. And even though both American College of Cardiology/American Heart Association and European Society of Cardiology guidelines recommend the use of opioids for pain control in STEMI patients, the fact is that these medications further delay the absorption of oral P2Y12 inhibitors. And this delay is further exacerbated by the nausea and vomiting which are common side effects of IV fentanyl, she continued.
The impetus for the ON-TIME 3 trial was straightforward, the cardiologist said: “For years, STEMI patients have been treated with morphine or morphinelike drugs like fentanyl because of pain or sympathetic stress. To date, trials investigating alternative analgesics to opioids have been scarce.”
ON-TIME 3 was a multicenter, open-label, phase 4 clinical trial in which 195 STEMI patients with a self-reported pain score of at least 4 on a 0-10 scale received crushed ticagrelor in the ambulance along with either 1,000 mg of IV acetaminophen or fentanyl at 1-2 mcg/kg.
Ticagrelor blood levels were significantly higher in the IV acetaminophen group when measured just prior to primary PCI (151 ng/mL versus 60 ng/mL in the IV fentanyl group; immediately after PCI (326 versus 115 ng/mL), and 1 hour post PCI (488 versus 372 ng/mL).
However, there was no significant between-group difference in levels of platelet reactivity units measured immediately after primary PCI, Dr. Tavenier added.
Discussant Christoph K. Naber, MD, PhD, confessed that prior to ON-TIME 3 he was unaware that administering opioids to STEMI patients results in delayed absorption of oral P2Y12 inhibitors. Upon delving into the literature, however, he found that this is indeed a well-documented problem.
“The open question I have about this very elegant trial is whether the increased P2Y12 levels will translate into a measurable difference in clinical outcomes,” said Dr. Naber, an interventional cardiologist at the Wilhemshaven (Germany) Clinic.
The answer to that question would require a larger, longer-term trial. And he’s disinclined to wait around for that to happen.
“I think when we look at the risk balance, the risk of switching from an opioid to acetaminophen, if it works for the patient, is rather low. So this might be something to introduce in my practice,” the cardiologist said.
Dr. Tavenier and Dr. Naber reported having no financial conflicts of interest.
SOURCE: Tavenier AH. EuroPCR 2020.
Swapping out intravenous fentanyl in favor of IV acetaminophen in patients with ST-elevation MI (STEMI) provides comparable pain relief but with desirably higher blood levels of ticagrelor both immediately after primary percutaneous intervention and 1 hour post procedure.
That’s according to results of the Dutch ON-TIME 3 trial, presented by Anne H. Tavenier, MD, at the virtual annual meeting of the European Association of Percutaneous Cardiovascular Interventions.
“Our trial results have implications for the prehospital treatment of STEMI patients,” said Dr. Tavenier, a cardiologist at the Isala Clinic in Zwolle, the Netherlands.
The explanation for the success of this novel STEMI pain management strategy? The synthetic opioid fentanyl impairs gastrointestinal absorption of oral P2Y12 receptor antagonists such as ticagrelor. Opiates do so as well, whereas acetaminophen does not, she explained.
The potent platelet inhibition provided by oral P2Y12 inhibitors is crucial to successful primary PCI for STEMI. But these platelet inhibitory effects are inherently slowed in STEMI patients owing to hemodynamic changes and delayed GI absorption. And even though both American College of Cardiology/American Heart Association and European Society of Cardiology guidelines recommend the use of opioids for pain control in STEMI patients, the fact is that these medications further delay the absorption of oral P2Y12 inhibitors. And this delay is further exacerbated by the nausea and vomiting which are common side effects of IV fentanyl, she continued.
The impetus for the ON-TIME 3 trial was straightforward, the cardiologist said: “For years, STEMI patients have been treated with morphine or morphinelike drugs like fentanyl because of pain or sympathetic stress. To date, trials investigating alternative analgesics to opioids have been scarce.”
ON-TIME 3 was a multicenter, open-label, phase 4 clinical trial in which 195 STEMI patients with a self-reported pain score of at least 4 on a 0-10 scale received crushed ticagrelor in the ambulance along with either 1,000 mg of IV acetaminophen or fentanyl at 1-2 mcg/kg.
Ticagrelor blood levels were significantly higher in the IV acetaminophen group when measured just prior to primary PCI (151 ng/mL versus 60 ng/mL in the IV fentanyl group; immediately after PCI (326 versus 115 ng/mL), and 1 hour post PCI (488 versus 372 ng/mL).
However, there was no significant between-group difference in levels of platelet reactivity units measured immediately after primary PCI, Dr. Tavenier added.
Discussant Christoph K. Naber, MD, PhD, confessed that prior to ON-TIME 3 he was unaware that administering opioids to STEMI patients results in delayed absorption of oral P2Y12 inhibitors. Upon delving into the literature, however, he found that this is indeed a well-documented problem.
“The open question I have about this very elegant trial is whether the increased P2Y12 levels will translate into a measurable difference in clinical outcomes,” said Dr. Naber, an interventional cardiologist at the Wilhemshaven (Germany) Clinic.
The answer to that question would require a larger, longer-term trial. And he’s disinclined to wait around for that to happen.
“I think when we look at the risk balance, the risk of switching from an opioid to acetaminophen, if it works for the patient, is rather low. So this might be something to introduce in my practice,” the cardiologist said.
Dr. Tavenier and Dr. Naber reported having no financial conflicts of interest.
SOURCE: Tavenier AH. EuroPCR 2020.
REPORTING FROM EUROPCR 2020
Post-PCI mortality higher in Blacks vs. Whites, regardless of comorbidities
A combined analysis of 10 prospective trials, intended to shed light on racial disparities in percutaneous coronary intervention (PCI) outcomes, saw sharply higher risks of death and myocardial infarction (MI) for Blacks compared with Whites.
The burden of comorbidities, including diabetes, was greater for Hispanics and Blacks, compared with Whites, but only in Blacks were PCI outcomes significantly worse even after controlling for such conditions and other baseline risk factors.
The analysis based on more than 22,000 patients was published July 6 in JACC: Cardiovascular Interventions,with lead author Mordechai Golomb, MD, Cardiovascular Research Foundation, New York.
In the study based on patient-level data from the different trials, the adjusted risk of MI after PCI was increased 45% at 1 year and 55% after 5 years for Blacks, compared with Whites. Their risk of death at 1 year was doubled, and their risk of major adverse cardiac events (MACE) was up by 28% at 5 years.
“Improving health care and outcomes for minorities is essential, and we are hopeful that our work may help direct these efforts, senior author Gregg W. Stone, MD, Icahn School of Medicine at Mount Sinai, New York, said in an interview.
“But this won’t happen without active, concerted efforts to promote change and opportunity, a task for government, regulators, payers, hospital administrators, physicians, and all health care providers,” he said. “Understanding patient outcomes according to race and ethnicity is essential to optimize health for all patients,” but “most prior studies in this regard have looked at population-based data.”
In contrast, the current study used hospital source records – which are considered more accurate than administrative databases – and event coding reports, Dr. Stone said, plus angiographic core laboratory analyses for all patients, which allows “an independent assessment of the extent and type of coronary artery disease and procedural outcomes.”
The analysis “demonstrated that even when upfront treatments are presumably similar [across racial groups] in a clinical trial setting, longitudinal outcomes still differ by race,” Michael Nanna, MD, said in an interview.
The “troubling” results “highlight the persistence of racial disparities in health care and the need to renew our focus on closing these gaps [and] is yet another call to action for clinicians, researchers, and the health care system at large,” said Dr. Nanna, of Duke University Medical Center, Durham, N.C., and lead author on an editorial accompanying the published analysis.
Of the 10 randomized controlled trials included in the study, which encompassed 22,638 patients, 9 were stent comparisons and 1 compared antithrombotic regimens in patients with acute coronary syndromes (ACS), the authors noted. The median follow-up was about 1,100 days.
White patients made up 90.9% of the combined cohort, Black patients comprised 4.1%, Hispanics 2.1%, and Asians 1.8% – figures that “confirm the well-known fact that minority groups are underrepresented in clinical trials,” Dr. Stone said.
There were notable demographic and clinical differences at baseline between the four groups.
For example, Black patients tended to be younger than White, Hispanic, and Asian patients. Black and Hispanic patients were also less likely to be male, compared with White patients.
Both Black and Hispanic patients had more comorbidities than Whites did at baseline, the authors observe. For example, Black and Hispanic patients had a greater body mass index, compared with Whites, whereas it was lower for Asians; and they had more diabetes and more hypertension than Whites (P < .0001 for all differences). Hispanics were more likely to have ACS at baseline, compared with Whites, and less likely to have stable coronary artery disease (CAD) (P < .0001 for all differences). Similar proportions of Blacks and of Whites had stable CAD (about 32% of each) and ACS (about 68% in both cases). Rates of hyperlipidemia and stable CAD were greater and rates of ACS was lower in Asians than the other three race groups (P < .0001 for each difference). In adjusted analysis, the risk of MACE at 5 years was significantly increased for Blacks, compared with Whites (hazard ratio, 1.28; 95% CI, 1.05-1.57; P = .01). The same applied to MI (HR, 1.55; 95% CI, 1.15-2.09; P = .004). At 1 year, Blacks showed higher risks for death (HR, 2.06; 95% CI, 1.26-3.36; P = .004) and for MI (HR, 1.45; 95% CI, 1.01-2.10; P = .045), compared with Whites.
No significant increases in risk for outcomes at 1 and 5 years were seen for Hispanics or Asians, compared with Whites.
Covariates in the analyses included age, sex, body mass index, diabetes, current smoking, hypertension, hyperlipidemia, history of MI or coronary revascularization, clinical CAD presentation, category of stent, and race stratified by study.
Even with underlying genotypic differences between Blacks and Whites, much of the difference in risk for outcomes “should have been accounted for when the researchers adjusted for these clinical phenotypes,” the editorial notes.
Some of the difference in risk must have derived from uncontrolled-for variables, and “[b]eyond genetics, it is clear that race is also a surrogate for other socioeconomic factors that influence both medical care and patient outcomes,” the editorialists wrote.
The adjusted analysis, noted Golomb et al, suggests “that for Hispanic patients, the excess risk for adverse clinical outcomes may have been attributable to a higher prevalence of risk factors. In contrast, the excess risk for adverse clinical outcomes for Black patients persisted even after adjustment for baseline risk factors.”
As such, they agreed: “The observed increased risk may be explained by differences that are not fully captured in traditional cardiovascular risk factor assessment, including socioeconomic differences and education, treatment compliance rates, and yet-to-be-elucidated genetic differences and/or other factors.”
Dr. Stone said that such socioeconomic considerations may include reduced access to care and insurance coverage; lack of preventive care, disease awareness, and education; delayed presentation; and varying levels of provided care.
“Possible genetic or environmental-related differences in the development and progression of atherosclerosis and other disease processes” may also be involved.
“Achieving representative proportions of minorities in clinical trials is essential but has proved challenging,” Dr. Stone said. “We must ensure that adequate numbers of hospitals and providers that are serving these patients participate in multicenter trials, and trust has to be developed so that minority populations have confidence to enroll in studies.”
Dr. Stone reported holding equity options in Ancora, Qool Therapeutics, Cagent, Applied Therapeutics, the Biostar family of funds, SpectraWave, Orchestro Biomed, Aria, Cardiac Success, the MedFocus family of funds, and Valfix and receiving consulting fees from Valfix, TherOx, Vascular Dynamics, Robocath, HeartFlow, Gore Ablative Solutions, Miracor, Neovasc, W-Wave, Abiomed, and others. Disclosures for the other authors are in the report. Nanna reports no relevant financial relationships; other coauthor disclosures are provided with the editorial.
A version of this article originally appeared on Medscape.com.
A combined analysis of 10 prospective trials, intended to shed light on racial disparities in percutaneous coronary intervention (PCI) outcomes, saw sharply higher risks of death and myocardial infarction (MI) for Blacks compared with Whites.
The burden of comorbidities, including diabetes, was greater for Hispanics and Blacks, compared with Whites, but only in Blacks were PCI outcomes significantly worse even after controlling for such conditions and other baseline risk factors.
The analysis based on more than 22,000 patients was published July 6 in JACC: Cardiovascular Interventions,with lead author Mordechai Golomb, MD, Cardiovascular Research Foundation, New York.
In the study based on patient-level data from the different trials, the adjusted risk of MI after PCI was increased 45% at 1 year and 55% after 5 years for Blacks, compared with Whites. Their risk of death at 1 year was doubled, and their risk of major adverse cardiac events (MACE) was up by 28% at 5 years.
“Improving health care and outcomes for minorities is essential, and we are hopeful that our work may help direct these efforts, senior author Gregg W. Stone, MD, Icahn School of Medicine at Mount Sinai, New York, said in an interview.
“But this won’t happen without active, concerted efforts to promote change and opportunity, a task for government, regulators, payers, hospital administrators, physicians, and all health care providers,” he said. “Understanding patient outcomes according to race and ethnicity is essential to optimize health for all patients,” but “most prior studies in this regard have looked at population-based data.”
In contrast, the current study used hospital source records – which are considered more accurate than administrative databases – and event coding reports, Dr. Stone said, plus angiographic core laboratory analyses for all patients, which allows “an independent assessment of the extent and type of coronary artery disease and procedural outcomes.”
The analysis “demonstrated that even when upfront treatments are presumably similar [across racial groups] in a clinical trial setting, longitudinal outcomes still differ by race,” Michael Nanna, MD, said in an interview.
The “troubling” results “highlight the persistence of racial disparities in health care and the need to renew our focus on closing these gaps [and] is yet another call to action for clinicians, researchers, and the health care system at large,” said Dr. Nanna, of Duke University Medical Center, Durham, N.C., and lead author on an editorial accompanying the published analysis.
Of the 10 randomized controlled trials included in the study, which encompassed 22,638 patients, 9 were stent comparisons and 1 compared antithrombotic regimens in patients with acute coronary syndromes (ACS), the authors noted. The median follow-up was about 1,100 days.
White patients made up 90.9% of the combined cohort, Black patients comprised 4.1%, Hispanics 2.1%, and Asians 1.8% – figures that “confirm the well-known fact that minority groups are underrepresented in clinical trials,” Dr. Stone said.
There were notable demographic and clinical differences at baseline between the four groups.
For example, Black patients tended to be younger than White, Hispanic, and Asian patients. Black and Hispanic patients were also less likely to be male, compared with White patients.
Both Black and Hispanic patients had more comorbidities than Whites did at baseline, the authors observe. For example, Black and Hispanic patients had a greater body mass index, compared with Whites, whereas it was lower for Asians; and they had more diabetes and more hypertension than Whites (P < .0001 for all differences). Hispanics were more likely to have ACS at baseline, compared with Whites, and less likely to have stable coronary artery disease (CAD) (P < .0001 for all differences). Similar proportions of Blacks and of Whites had stable CAD (about 32% of each) and ACS (about 68% in both cases). Rates of hyperlipidemia and stable CAD were greater and rates of ACS was lower in Asians than the other three race groups (P < .0001 for each difference). In adjusted analysis, the risk of MACE at 5 years was significantly increased for Blacks, compared with Whites (hazard ratio, 1.28; 95% CI, 1.05-1.57; P = .01). The same applied to MI (HR, 1.55; 95% CI, 1.15-2.09; P = .004). At 1 year, Blacks showed higher risks for death (HR, 2.06; 95% CI, 1.26-3.36; P = .004) and for MI (HR, 1.45; 95% CI, 1.01-2.10; P = .045), compared with Whites.
No significant increases in risk for outcomes at 1 and 5 years were seen for Hispanics or Asians, compared with Whites.
Covariates in the analyses included age, sex, body mass index, diabetes, current smoking, hypertension, hyperlipidemia, history of MI or coronary revascularization, clinical CAD presentation, category of stent, and race stratified by study.
Even with underlying genotypic differences between Blacks and Whites, much of the difference in risk for outcomes “should have been accounted for when the researchers adjusted for these clinical phenotypes,” the editorial notes.
Some of the difference in risk must have derived from uncontrolled-for variables, and “[b]eyond genetics, it is clear that race is also a surrogate for other socioeconomic factors that influence both medical care and patient outcomes,” the editorialists wrote.
The adjusted analysis, noted Golomb et al, suggests “that for Hispanic patients, the excess risk for adverse clinical outcomes may have been attributable to a higher prevalence of risk factors. In contrast, the excess risk for adverse clinical outcomes for Black patients persisted even after adjustment for baseline risk factors.”
As such, they agreed: “The observed increased risk may be explained by differences that are not fully captured in traditional cardiovascular risk factor assessment, including socioeconomic differences and education, treatment compliance rates, and yet-to-be-elucidated genetic differences and/or other factors.”
Dr. Stone said that such socioeconomic considerations may include reduced access to care and insurance coverage; lack of preventive care, disease awareness, and education; delayed presentation; and varying levels of provided care.
“Possible genetic or environmental-related differences in the development and progression of atherosclerosis and other disease processes” may also be involved.
“Achieving representative proportions of minorities in clinical trials is essential but has proved challenging,” Dr. Stone said. “We must ensure that adequate numbers of hospitals and providers that are serving these patients participate in multicenter trials, and trust has to be developed so that minority populations have confidence to enroll in studies.”
Dr. Stone reported holding equity options in Ancora, Qool Therapeutics, Cagent, Applied Therapeutics, the Biostar family of funds, SpectraWave, Orchestro Biomed, Aria, Cardiac Success, the MedFocus family of funds, and Valfix and receiving consulting fees from Valfix, TherOx, Vascular Dynamics, Robocath, HeartFlow, Gore Ablative Solutions, Miracor, Neovasc, W-Wave, Abiomed, and others. Disclosures for the other authors are in the report. Nanna reports no relevant financial relationships; other coauthor disclosures are provided with the editorial.
A version of this article originally appeared on Medscape.com.
A combined analysis of 10 prospective trials, intended to shed light on racial disparities in percutaneous coronary intervention (PCI) outcomes, saw sharply higher risks of death and myocardial infarction (MI) for Blacks compared with Whites.
The burden of comorbidities, including diabetes, was greater for Hispanics and Blacks, compared with Whites, but only in Blacks were PCI outcomes significantly worse even after controlling for such conditions and other baseline risk factors.
The analysis based on more than 22,000 patients was published July 6 in JACC: Cardiovascular Interventions,with lead author Mordechai Golomb, MD, Cardiovascular Research Foundation, New York.
In the study based on patient-level data from the different trials, the adjusted risk of MI after PCI was increased 45% at 1 year and 55% after 5 years for Blacks, compared with Whites. Their risk of death at 1 year was doubled, and their risk of major adverse cardiac events (MACE) was up by 28% at 5 years.
“Improving health care and outcomes for minorities is essential, and we are hopeful that our work may help direct these efforts, senior author Gregg W. Stone, MD, Icahn School of Medicine at Mount Sinai, New York, said in an interview.
“But this won’t happen without active, concerted efforts to promote change and opportunity, a task for government, regulators, payers, hospital administrators, physicians, and all health care providers,” he said. “Understanding patient outcomes according to race and ethnicity is essential to optimize health for all patients,” but “most prior studies in this regard have looked at population-based data.”
In contrast, the current study used hospital source records – which are considered more accurate than administrative databases – and event coding reports, Dr. Stone said, plus angiographic core laboratory analyses for all patients, which allows “an independent assessment of the extent and type of coronary artery disease and procedural outcomes.”
The analysis “demonstrated that even when upfront treatments are presumably similar [across racial groups] in a clinical trial setting, longitudinal outcomes still differ by race,” Michael Nanna, MD, said in an interview.
The “troubling” results “highlight the persistence of racial disparities in health care and the need to renew our focus on closing these gaps [and] is yet another call to action for clinicians, researchers, and the health care system at large,” said Dr. Nanna, of Duke University Medical Center, Durham, N.C., and lead author on an editorial accompanying the published analysis.
Of the 10 randomized controlled trials included in the study, which encompassed 22,638 patients, 9 were stent comparisons and 1 compared antithrombotic regimens in patients with acute coronary syndromes (ACS), the authors noted. The median follow-up was about 1,100 days.
White patients made up 90.9% of the combined cohort, Black patients comprised 4.1%, Hispanics 2.1%, and Asians 1.8% – figures that “confirm the well-known fact that minority groups are underrepresented in clinical trials,” Dr. Stone said.
There were notable demographic and clinical differences at baseline between the four groups.
For example, Black patients tended to be younger than White, Hispanic, and Asian patients. Black and Hispanic patients were also less likely to be male, compared with White patients.
Both Black and Hispanic patients had more comorbidities than Whites did at baseline, the authors observe. For example, Black and Hispanic patients had a greater body mass index, compared with Whites, whereas it was lower for Asians; and they had more diabetes and more hypertension than Whites (P < .0001 for all differences). Hispanics were more likely to have ACS at baseline, compared with Whites, and less likely to have stable coronary artery disease (CAD) (P < .0001 for all differences). Similar proportions of Blacks and of Whites had stable CAD (about 32% of each) and ACS (about 68% in both cases). Rates of hyperlipidemia and stable CAD were greater and rates of ACS was lower in Asians than the other three race groups (P < .0001 for each difference). In adjusted analysis, the risk of MACE at 5 years was significantly increased for Blacks, compared with Whites (hazard ratio, 1.28; 95% CI, 1.05-1.57; P = .01). The same applied to MI (HR, 1.55; 95% CI, 1.15-2.09; P = .004). At 1 year, Blacks showed higher risks for death (HR, 2.06; 95% CI, 1.26-3.36; P = .004) and for MI (HR, 1.45; 95% CI, 1.01-2.10; P = .045), compared with Whites.
No significant increases in risk for outcomes at 1 and 5 years were seen for Hispanics or Asians, compared with Whites.
Covariates in the analyses included age, sex, body mass index, diabetes, current smoking, hypertension, hyperlipidemia, history of MI or coronary revascularization, clinical CAD presentation, category of stent, and race stratified by study.
Even with underlying genotypic differences between Blacks and Whites, much of the difference in risk for outcomes “should have been accounted for when the researchers adjusted for these clinical phenotypes,” the editorial notes.
Some of the difference in risk must have derived from uncontrolled-for variables, and “[b]eyond genetics, it is clear that race is also a surrogate for other socioeconomic factors that influence both medical care and patient outcomes,” the editorialists wrote.
The adjusted analysis, noted Golomb et al, suggests “that for Hispanic patients, the excess risk for adverse clinical outcomes may have been attributable to a higher prevalence of risk factors. In contrast, the excess risk for adverse clinical outcomes for Black patients persisted even after adjustment for baseline risk factors.”
As such, they agreed: “The observed increased risk may be explained by differences that are not fully captured in traditional cardiovascular risk factor assessment, including socioeconomic differences and education, treatment compliance rates, and yet-to-be-elucidated genetic differences and/or other factors.”
Dr. Stone said that such socioeconomic considerations may include reduced access to care and insurance coverage; lack of preventive care, disease awareness, and education; delayed presentation; and varying levels of provided care.
“Possible genetic or environmental-related differences in the development and progression of atherosclerosis and other disease processes” may also be involved.
“Achieving representative proportions of minorities in clinical trials is essential but has proved challenging,” Dr. Stone said. “We must ensure that adequate numbers of hospitals and providers that are serving these patients participate in multicenter trials, and trust has to be developed so that minority populations have confidence to enroll in studies.”
Dr. Stone reported holding equity options in Ancora, Qool Therapeutics, Cagent, Applied Therapeutics, the Biostar family of funds, SpectraWave, Orchestro Biomed, Aria, Cardiac Success, the MedFocus family of funds, and Valfix and receiving consulting fees from Valfix, TherOx, Vascular Dynamics, Robocath, HeartFlow, Gore Ablative Solutions, Miracor, Neovasc, W-Wave, Abiomed, and others. Disclosures for the other authors are in the report. Nanna reports no relevant financial relationships; other coauthor disclosures are provided with the editorial.
A version of this article originally appeared on Medscape.com.
Chewed prasugrel for primary PCI? Forget it!
And cangrelor, in turn, is superior to oral prasugrel, according to the randomized FABOLUS FASTER trial, Marco Valgimigli, MD, PhD, reported at the virtual annual meeting of the European Association of Percutaneous Cardiovascular Interventions.
Moreover, contrary to conventional wisdom, chewed prasugrel (Effient) proved no better than swallowing the tablets whole for platelet inhibition, said Dr. Valgimigli, an interventional cardiologist at the University of Bern (Switzerland).
He explained that standard administration of the newer oral P2Y12 inhibitors prasugrel and ticagrelor (Brilinta) in patients undergoing percutaneous coronary intervention (PCI) for ST-elevation MI (STEMI) does not provide optimal early inhibition of platelet aggregation. The parenteral antiplatelet drugs tirofiban and cangrelor have been shown to provide faster and more prolonged inhibition of platelet aggregation than the oral P2Y12 inhibitors.
But there has been no head-to-head comparative data for the glycoprotein IIb/IIIA inhibitor tirofiban (Aggrastat) and the P2Y12 inhibitor cangrelor (Kengreal) in the setting of primary PCI for STEMI. This was the impetus for FABOLUS FASTER, the first study to compare the pharmacodynamic effects of the two parenteral antiplatelet agents. The trial also looked at how these potent parenteral drugs, compared with chewed prasugrel, another previously unexamined yet highly practical issue.
The three-center, multinational, open-label FABOLUS FASTER trial randomized 122 patients undergoing primary PCI for STEMI to one of three arms: a standard intravenous bolus and 2-hour infusion of either the P2Y12 inhibitor cangrelor (Kengreal) or the glycoprotein IIb/IIIA inhibitor tirofiban (Aggrastat), followed in either case by 60 mg of oral prasugrel, or a third arm in which patients didn’t receive either drug but were instead randomized to a 60-mg loading dose of chewed or whole prasugrel tablets.
The primary study endpoint was inhibition of platelet aggregation at 30 minutes as measured by light transmittance aggregometry in response to 20 mcmol/L of adenosine diphosphate (ADP).
Tirofiban was the unequivocal winner with 95% inhibition, as compared with 34.1% with cangrelor, 10.5% with chewed prasugrel, and 6.3% with prasugrel swallowed whole, even though the concentration of prasugrel’s active metabolite was far greater at 62.3 ng/mL after prasugrel was chewed, compared with 17.1 ng/mL when swallowed in integral tablet form.
The rate of nonresponsiveness to tirofiban as defined by greater than 59% platelet aggregation was zero for tirofiban during its 2-hour infusion, then a scant 8% thereafter during repeated testing at 3 and 4-6 hours. In contrast, the cangrelor nonresponsiveness rate was 50%-58% during the 2-hour infusion, rising to 82% at 3 hours.
FABOLUS FASTER, while not powered for clinical endpoints, might nevertheless have important clinical implications, according to Dr. Valgimigli. First, the superiority of the intravenous drugs tirofiban and cangrelor over prasugrel for early, strong platelet inhibition underscores the importance of giving parenteral antiplatelet drugs over oral therapy during the acute phase of STEMI therapy. Moreover, tirofiban’s outstanding performance – and the high residual platelet reactivity associated with cangrelor – makes a strong case for large comparative, randomized trials of the two drugs, with hard clinical endpoints.
Discussant Christoph K. Naber, MD, PhD, opined that he personally doesn’t consider the FABOLUS FASTER results practice changing, for a couple of reasons.
“Platelet inhibition measured by ADP in vitro is not necessarily related to true effects in vivo. We know that platelets are activated by multiple mechanisms, and the ADP pathway is just one of them,” said Dr. Naber, an interventional cardiologist at the Wilhemshaven (Germany) Clinic.
Also, there’s a good reason why no glycoprotein IIb/IIIA inhibitors are approved for treatment of STEMI, and why tirofiban, despite its impressive antiplatelet effects, is currently largely reserved for bailout situations, such as complex lesions with large thrombus burden. It’s because tirofiban’s potent antiplatelet activity is accompanied by a high risk of bleeding, he added.
However, Dr. Valgimigli noted that this conviction about excessive bleeding risk is mainly based on older studies in which glycoprotein IIb/IIIA inhibitors were administered for prolonged duration through femoral access sites. He argued that it’s time for large clinical trials examining the risk/benefit ratio of short infusion of these agents in the contemporary practice of primary PCI for STEMI.
Simultaneously with Dr. Valgimigli’s presentation, the FABOLUS FASTER results were published online (Circulation. 2020 Jun 27; doi: 10.1161/CIRCULATIONAHA.120.046928).
Dr. Valgimigli reported that Medicure, the sponsor of the FABOLUS FASTER trial, provided an institutional research grant to conduct the study. He also disclosed receiving research grants and personal fees outside the scope of this study from a dozen pharmaceutical and medical device companies. Dr. Naber reported having no financial conflicts.
And cangrelor, in turn, is superior to oral prasugrel, according to the randomized FABOLUS FASTER trial, Marco Valgimigli, MD, PhD, reported at the virtual annual meeting of the European Association of Percutaneous Cardiovascular Interventions.
Moreover, contrary to conventional wisdom, chewed prasugrel (Effient) proved no better than swallowing the tablets whole for platelet inhibition, said Dr. Valgimigli, an interventional cardiologist at the University of Bern (Switzerland).
He explained that standard administration of the newer oral P2Y12 inhibitors prasugrel and ticagrelor (Brilinta) in patients undergoing percutaneous coronary intervention (PCI) for ST-elevation MI (STEMI) does not provide optimal early inhibition of platelet aggregation. The parenteral antiplatelet drugs tirofiban and cangrelor have been shown to provide faster and more prolonged inhibition of platelet aggregation than the oral P2Y12 inhibitors.
But there has been no head-to-head comparative data for the glycoprotein IIb/IIIA inhibitor tirofiban (Aggrastat) and the P2Y12 inhibitor cangrelor (Kengreal) in the setting of primary PCI for STEMI. This was the impetus for FABOLUS FASTER, the first study to compare the pharmacodynamic effects of the two parenteral antiplatelet agents. The trial also looked at how these potent parenteral drugs, compared with chewed prasugrel, another previously unexamined yet highly practical issue.
The three-center, multinational, open-label FABOLUS FASTER trial randomized 122 patients undergoing primary PCI for STEMI to one of three arms: a standard intravenous bolus and 2-hour infusion of either the P2Y12 inhibitor cangrelor (Kengreal) or the glycoprotein IIb/IIIA inhibitor tirofiban (Aggrastat), followed in either case by 60 mg of oral prasugrel, or a third arm in which patients didn’t receive either drug but were instead randomized to a 60-mg loading dose of chewed or whole prasugrel tablets.
The primary study endpoint was inhibition of platelet aggregation at 30 minutes as measured by light transmittance aggregometry in response to 20 mcmol/L of adenosine diphosphate (ADP).
Tirofiban was the unequivocal winner with 95% inhibition, as compared with 34.1% with cangrelor, 10.5% with chewed prasugrel, and 6.3% with prasugrel swallowed whole, even though the concentration of prasugrel’s active metabolite was far greater at 62.3 ng/mL after prasugrel was chewed, compared with 17.1 ng/mL when swallowed in integral tablet form.
The rate of nonresponsiveness to tirofiban as defined by greater than 59% platelet aggregation was zero for tirofiban during its 2-hour infusion, then a scant 8% thereafter during repeated testing at 3 and 4-6 hours. In contrast, the cangrelor nonresponsiveness rate was 50%-58% during the 2-hour infusion, rising to 82% at 3 hours.
FABOLUS FASTER, while not powered for clinical endpoints, might nevertheless have important clinical implications, according to Dr. Valgimigli. First, the superiority of the intravenous drugs tirofiban and cangrelor over prasugrel for early, strong platelet inhibition underscores the importance of giving parenteral antiplatelet drugs over oral therapy during the acute phase of STEMI therapy. Moreover, tirofiban’s outstanding performance – and the high residual platelet reactivity associated with cangrelor – makes a strong case for large comparative, randomized trials of the two drugs, with hard clinical endpoints.
Discussant Christoph K. Naber, MD, PhD, opined that he personally doesn’t consider the FABOLUS FASTER results practice changing, for a couple of reasons.
“Platelet inhibition measured by ADP in vitro is not necessarily related to true effects in vivo. We know that platelets are activated by multiple mechanisms, and the ADP pathway is just one of them,” said Dr. Naber, an interventional cardiologist at the Wilhemshaven (Germany) Clinic.
Also, there’s a good reason why no glycoprotein IIb/IIIA inhibitors are approved for treatment of STEMI, and why tirofiban, despite its impressive antiplatelet effects, is currently largely reserved for bailout situations, such as complex lesions with large thrombus burden. It’s because tirofiban’s potent antiplatelet activity is accompanied by a high risk of bleeding, he added.
However, Dr. Valgimigli noted that this conviction about excessive bleeding risk is mainly based on older studies in which glycoprotein IIb/IIIA inhibitors were administered for prolonged duration through femoral access sites. He argued that it’s time for large clinical trials examining the risk/benefit ratio of short infusion of these agents in the contemporary practice of primary PCI for STEMI.
Simultaneously with Dr. Valgimigli’s presentation, the FABOLUS FASTER results were published online (Circulation. 2020 Jun 27; doi: 10.1161/CIRCULATIONAHA.120.046928).
Dr. Valgimigli reported that Medicure, the sponsor of the FABOLUS FASTER trial, provided an institutional research grant to conduct the study. He also disclosed receiving research grants and personal fees outside the scope of this study from a dozen pharmaceutical and medical device companies. Dr. Naber reported having no financial conflicts.
And cangrelor, in turn, is superior to oral prasugrel, according to the randomized FABOLUS FASTER trial, Marco Valgimigli, MD, PhD, reported at the virtual annual meeting of the European Association of Percutaneous Cardiovascular Interventions.
Moreover, contrary to conventional wisdom, chewed prasugrel (Effient) proved no better than swallowing the tablets whole for platelet inhibition, said Dr. Valgimigli, an interventional cardiologist at the University of Bern (Switzerland).
He explained that standard administration of the newer oral P2Y12 inhibitors prasugrel and ticagrelor (Brilinta) in patients undergoing percutaneous coronary intervention (PCI) for ST-elevation MI (STEMI) does not provide optimal early inhibition of platelet aggregation. The parenteral antiplatelet drugs tirofiban and cangrelor have been shown to provide faster and more prolonged inhibition of platelet aggregation than the oral P2Y12 inhibitors.
But there has been no head-to-head comparative data for the glycoprotein IIb/IIIA inhibitor tirofiban (Aggrastat) and the P2Y12 inhibitor cangrelor (Kengreal) in the setting of primary PCI for STEMI. This was the impetus for FABOLUS FASTER, the first study to compare the pharmacodynamic effects of the two parenteral antiplatelet agents. The trial also looked at how these potent parenteral drugs, compared with chewed prasugrel, another previously unexamined yet highly practical issue.
The three-center, multinational, open-label FABOLUS FASTER trial randomized 122 patients undergoing primary PCI for STEMI to one of three arms: a standard intravenous bolus and 2-hour infusion of either the P2Y12 inhibitor cangrelor (Kengreal) or the glycoprotein IIb/IIIA inhibitor tirofiban (Aggrastat), followed in either case by 60 mg of oral prasugrel, or a third arm in which patients didn’t receive either drug but were instead randomized to a 60-mg loading dose of chewed or whole prasugrel tablets.
The primary study endpoint was inhibition of platelet aggregation at 30 minutes as measured by light transmittance aggregometry in response to 20 mcmol/L of adenosine diphosphate (ADP).
Tirofiban was the unequivocal winner with 95% inhibition, as compared with 34.1% with cangrelor, 10.5% with chewed prasugrel, and 6.3% with prasugrel swallowed whole, even though the concentration of prasugrel’s active metabolite was far greater at 62.3 ng/mL after prasugrel was chewed, compared with 17.1 ng/mL when swallowed in integral tablet form.
The rate of nonresponsiveness to tirofiban as defined by greater than 59% platelet aggregation was zero for tirofiban during its 2-hour infusion, then a scant 8% thereafter during repeated testing at 3 and 4-6 hours. In contrast, the cangrelor nonresponsiveness rate was 50%-58% during the 2-hour infusion, rising to 82% at 3 hours.
FABOLUS FASTER, while not powered for clinical endpoints, might nevertheless have important clinical implications, according to Dr. Valgimigli. First, the superiority of the intravenous drugs tirofiban and cangrelor over prasugrel for early, strong platelet inhibition underscores the importance of giving parenteral antiplatelet drugs over oral therapy during the acute phase of STEMI therapy. Moreover, tirofiban’s outstanding performance – and the high residual platelet reactivity associated with cangrelor – makes a strong case for large comparative, randomized trials of the two drugs, with hard clinical endpoints.
Discussant Christoph K. Naber, MD, PhD, opined that he personally doesn’t consider the FABOLUS FASTER results practice changing, for a couple of reasons.
“Platelet inhibition measured by ADP in vitro is not necessarily related to true effects in vivo. We know that platelets are activated by multiple mechanisms, and the ADP pathway is just one of them,” said Dr. Naber, an interventional cardiologist at the Wilhemshaven (Germany) Clinic.
Also, there’s a good reason why no glycoprotein IIb/IIIA inhibitors are approved for treatment of STEMI, and why tirofiban, despite its impressive antiplatelet effects, is currently largely reserved for bailout situations, such as complex lesions with large thrombus burden. It’s because tirofiban’s potent antiplatelet activity is accompanied by a high risk of bleeding, he added.
However, Dr. Valgimigli noted that this conviction about excessive bleeding risk is mainly based on older studies in which glycoprotein IIb/IIIA inhibitors were administered for prolonged duration through femoral access sites. He argued that it’s time for large clinical trials examining the risk/benefit ratio of short infusion of these agents in the contemporary practice of primary PCI for STEMI.
Simultaneously with Dr. Valgimigli’s presentation, the FABOLUS FASTER results were published online (Circulation. 2020 Jun 27; doi: 10.1161/CIRCULATIONAHA.120.046928).
Dr. Valgimigli reported that Medicure, the sponsor of the FABOLUS FASTER trial, provided an institutional research grant to conduct the study. He also disclosed receiving research grants and personal fees outside the scope of this study from a dozen pharmaceutical and medical device companies. Dr. Naber reported having no financial conflicts.
REPORTING FROM EUROPCR 2020
COVID-19: ‘dramatic’ surge in out-of-hospital cardiac arrests in NYC
The COVID-19 pandemic in New York City led to a surge in out-of-hospital cardiac arrests (OHCAs) that placed a huge burden on first responders, a new analysis shows.
During the height of the pandemic in New York, there was a “dramatic increase in cardiopulmonary arrests, nearly all presented in non-shockable cardiac rhythms (> 90% fatality rate) and vulnerable patient populations were most affected,” David J. Prezant, MD, chief medical officer, Fire Department of New York (FDNY), said in an interview.
In a news release, Dr. Prezant noted that “relatively few, if any, patients were tested to confirm the presence of COVID-19,” making it impossible to distinguish between cardiac arrests as a result of COVID-19 and those that may have resulted from other health conditions.
“We also can’t rule out the possibility that some people may have died from delays in seeking or receiving treatment for non–COVID-19-related conditions. However, the dramatic increase in cardiac arrests compared to the same period in 2019 strongly indicates that the pandemic was directly or indirectly responsible for that surge in cardiac arrests and deaths,” said Dr. Prezant.
The study was published online June 19 in JAMA Cardiology.
New York City has the largest and busiest EMS system in the United States, serving a population of more than 8.4 million people and responding to more than 1.5 million calls every year.
To gauge the impact of COVID-19 on first responders, Dr. Prezant and colleagues analyzed data for adults with OHCA who received EMS resuscitation from March 1, when the first case of COVID-19 was diagnosed in the city, through April 25, when EMS call volume had receded to pre-COVID-19 levels.
Compared with the same period in 2019, the COVID-19 period had an excess of 2,653 patients with OHCA who underwent EMS resuscitation attempts (3,989 in 2020 vs. 1,336 in 2019, P < .001), an incidence rate triple that of 2019 (47.5 vs. 15.9 per 100,000).
On the worst day – Monday, April 6 – OHCAs peaked at 305 cases, an increase of nearly 10-fold compared with the same day in 2019.
Despite the surge in cases, the median response time of available EMS units to OHCAs increased by about 1 minute over 2019, a nonsignificant difference. Although the average time varied, median response time during the COVID-19 period was less than 3 minutes.
A more vulnerable group
Compared with 2019, patients suffering OHCA during the pandemic period were older (mean age 72 vs. 68 years), less likely to be white (20% white vs. 33%) and more likely to have hypertension (54% vs. 46%), diabetes (36% vs. 26%), physical limitations (57% vs. 48%) and cardiac rhythms that don’t respond to defibrillator shocks (92% vs. 81%).
Compared with 2019, the COVID-19 period had substantial reductions in return of spontaneous circulation (ROSC) (18% vs. 35%; P < .001) and sustained ROSC (11% vs. 25%; P < .001). The case fatality rate was 90% in the COVID-19 period vs. 75% a year earlier.
“The tragedy of the COVID-19 pandemic is not just the number of patients infected, but the large increase in OHCAs and deaths,” Dr. Prezant and colleagues said.
Identifying patients with the greatest risk for OHCA and death during the COVID-19 pandemic “should allow for early, targeted interventions in the outpatient setting that could lead to reductions in out-of-hospital deaths,” they noted.
“Vulnerable patient populations need outreach, telephonic medicine, televideo medicine, home visits, not just temperature monitoring but home O2 saturation monitoring,” Dr. Prezant said in an interview. “Barriers need to be removed, not just for this pandemic but for the future – no matter what the trigger is.”
Unsung heroes
In an Editor’s Note in JAMA Cardiology, Robert O. Bonow, MD, Northwestern University, Chicago, and colleagues said the American people owe a debt of gratitude to first responders for their “heroic work” triaging, resuscitating, and transporting thousands of people affected by COVID-19.
“Although the typically bustling NYC streets remained eerily deserted, the characteristic cacophony of sounds of the ‘City that Never Sleeps’ was replaced by sirens wailing all hours of the night,” they wrote.
First responders to OHCAs in the COVID-19 era place themselves at extremely high risk, in some cases without optimal personal protective equipment, they pointed out. “Sadly,” many first responders have fallen ill to COVID-19 infection, they added.
As of June 1, 29 EMS workers and volunteers across the United States had died of COVID-19.
They are James Villecco, Gregory Hodge, Tony Thomas, Mike Field, John Redd, Idris Bey, Richard Seaberry, and Sal Mancuso of New York; Israel Tolentino, Reuven Maroth, Liana Sá, Kevin Leiva, Frank Molinari, Robert Weber, Robert Tarrant, Solomon Donald, Scott Geiger, John Farrarella, John Careccia, Bill Nauta, and David Pinto of New Jersey; Kevin Bundy, Robert Zerman, and Jeremy Emerich of Pennsylvania; Paul Cary of Colorado; Paul Novicki of Michigan; David Martin of Mississippi; Billy Birmingham of Missouri; and John “JP” Granger of South Carolina.
“We offer their families, friends, and colleagues our sincerest condolences and honor their memory with our highest respect and gratitude,” Dr. Bonow and colleagues wrote.
This study was supported by the City of New York and the Fire Department of the City of New York. The authors have disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
The COVID-19 pandemic in New York City led to a surge in out-of-hospital cardiac arrests (OHCAs) that placed a huge burden on first responders, a new analysis shows.
During the height of the pandemic in New York, there was a “dramatic increase in cardiopulmonary arrests, nearly all presented in non-shockable cardiac rhythms (> 90% fatality rate) and vulnerable patient populations were most affected,” David J. Prezant, MD, chief medical officer, Fire Department of New York (FDNY), said in an interview.
In a news release, Dr. Prezant noted that “relatively few, if any, patients were tested to confirm the presence of COVID-19,” making it impossible to distinguish between cardiac arrests as a result of COVID-19 and those that may have resulted from other health conditions.
“We also can’t rule out the possibility that some people may have died from delays in seeking or receiving treatment for non–COVID-19-related conditions. However, the dramatic increase in cardiac arrests compared to the same period in 2019 strongly indicates that the pandemic was directly or indirectly responsible for that surge in cardiac arrests and deaths,” said Dr. Prezant.
The study was published online June 19 in JAMA Cardiology.
New York City has the largest and busiest EMS system in the United States, serving a population of more than 8.4 million people and responding to more than 1.5 million calls every year.
To gauge the impact of COVID-19 on first responders, Dr. Prezant and colleagues analyzed data for adults with OHCA who received EMS resuscitation from March 1, when the first case of COVID-19 was diagnosed in the city, through April 25, when EMS call volume had receded to pre-COVID-19 levels.
Compared with the same period in 2019, the COVID-19 period had an excess of 2,653 patients with OHCA who underwent EMS resuscitation attempts (3,989 in 2020 vs. 1,336 in 2019, P < .001), an incidence rate triple that of 2019 (47.5 vs. 15.9 per 100,000).
On the worst day – Monday, April 6 – OHCAs peaked at 305 cases, an increase of nearly 10-fold compared with the same day in 2019.
Despite the surge in cases, the median response time of available EMS units to OHCAs increased by about 1 minute over 2019, a nonsignificant difference. Although the average time varied, median response time during the COVID-19 period was less than 3 minutes.
A more vulnerable group
Compared with 2019, patients suffering OHCA during the pandemic period were older (mean age 72 vs. 68 years), less likely to be white (20% white vs. 33%) and more likely to have hypertension (54% vs. 46%), diabetes (36% vs. 26%), physical limitations (57% vs. 48%) and cardiac rhythms that don’t respond to defibrillator shocks (92% vs. 81%).
Compared with 2019, the COVID-19 period had substantial reductions in return of spontaneous circulation (ROSC) (18% vs. 35%; P < .001) and sustained ROSC (11% vs. 25%; P < .001). The case fatality rate was 90% in the COVID-19 period vs. 75% a year earlier.
“The tragedy of the COVID-19 pandemic is not just the number of patients infected, but the large increase in OHCAs and deaths,” Dr. Prezant and colleagues said.
Identifying patients with the greatest risk for OHCA and death during the COVID-19 pandemic “should allow for early, targeted interventions in the outpatient setting that could lead to reductions in out-of-hospital deaths,” they noted.
“Vulnerable patient populations need outreach, telephonic medicine, televideo medicine, home visits, not just temperature monitoring but home O2 saturation monitoring,” Dr. Prezant said in an interview. “Barriers need to be removed, not just for this pandemic but for the future – no matter what the trigger is.”
Unsung heroes
In an Editor’s Note in JAMA Cardiology, Robert O. Bonow, MD, Northwestern University, Chicago, and colleagues said the American people owe a debt of gratitude to first responders for their “heroic work” triaging, resuscitating, and transporting thousands of people affected by COVID-19.
“Although the typically bustling NYC streets remained eerily deserted, the characteristic cacophony of sounds of the ‘City that Never Sleeps’ was replaced by sirens wailing all hours of the night,” they wrote.
First responders to OHCAs in the COVID-19 era place themselves at extremely high risk, in some cases without optimal personal protective equipment, they pointed out. “Sadly,” many first responders have fallen ill to COVID-19 infection, they added.
As of June 1, 29 EMS workers and volunteers across the United States had died of COVID-19.
They are James Villecco, Gregory Hodge, Tony Thomas, Mike Field, John Redd, Idris Bey, Richard Seaberry, and Sal Mancuso of New York; Israel Tolentino, Reuven Maroth, Liana Sá, Kevin Leiva, Frank Molinari, Robert Weber, Robert Tarrant, Solomon Donald, Scott Geiger, John Farrarella, John Careccia, Bill Nauta, and David Pinto of New Jersey; Kevin Bundy, Robert Zerman, and Jeremy Emerich of Pennsylvania; Paul Cary of Colorado; Paul Novicki of Michigan; David Martin of Mississippi; Billy Birmingham of Missouri; and John “JP” Granger of South Carolina.
“We offer their families, friends, and colleagues our sincerest condolences and honor their memory with our highest respect and gratitude,” Dr. Bonow and colleagues wrote.
This study was supported by the City of New York and the Fire Department of the City of New York. The authors have disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
The COVID-19 pandemic in New York City led to a surge in out-of-hospital cardiac arrests (OHCAs) that placed a huge burden on first responders, a new analysis shows.
During the height of the pandemic in New York, there was a “dramatic increase in cardiopulmonary arrests, nearly all presented in non-shockable cardiac rhythms (> 90% fatality rate) and vulnerable patient populations were most affected,” David J. Prezant, MD, chief medical officer, Fire Department of New York (FDNY), said in an interview.
In a news release, Dr. Prezant noted that “relatively few, if any, patients were tested to confirm the presence of COVID-19,” making it impossible to distinguish between cardiac arrests as a result of COVID-19 and those that may have resulted from other health conditions.
“We also can’t rule out the possibility that some people may have died from delays in seeking or receiving treatment for non–COVID-19-related conditions. However, the dramatic increase in cardiac arrests compared to the same period in 2019 strongly indicates that the pandemic was directly or indirectly responsible for that surge in cardiac arrests and deaths,” said Dr. Prezant.
The study was published online June 19 in JAMA Cardiology.
New York City has the largest and busiest EMS system in the United States, serving a population of more than 8.4 million people and responding to more than 1.5 million calls every year.
To gauge the impact of COVID-19 on first responders, Dr. Prezant and colleagues analyzed data for adults with OHCA who received EMS resuscitation from March 1, when the first case of COVID-19 was diagnosed in the city, through April 25, when EMS call volume had receded to pre-COVID-19 levels.
Compared with the same period in 2019, the COVID-19 period had an excess of 2,653 patients with OHCA who underwent EMS resuscitation attempts (3,989 in 2020 vs. 1,336 in 2019, P < .001), an incidence rate triple that of 2019 (47.5 vs. 15.9 per 100,000).
On the worst day – Monday, April 6 – OHCAs peaked at 305 cases, an increase of nearly 10-fold compared with the same day in 2019.
Despite the surge in cases, the median response time of available EMS units to OHCAs increased by about 1 minute over 2019, a nonsignificant difference. Although the average time varied, median response time during the COVID-19 period was less than 3 minutes.
A more vulnerable group
Compared with 2019, patients suffering OHCA during the pandemic period were older (mean age 72 vs. 68 years), less likely to be white (20% white vs. 33%) and more likely to have hypertension (54% vs. 46%), diabetes (36% vs. 26%), physical limitations (57% vs. 48%) and cardiac rhythms that don’t respond to defibrillator shocks (92% vs. 81%).
Compared with 2019, the COVID-19 period had substantial reductions in return of spontaneous circulation (ROSC) (18% vs. 35%; P < .001) and sustained ROSC (11% vs. 25%; P < .001). The case fatality rate was 90% in the COVID-19 period vs. 75% a year earlier.
“The tragedy of the COVID-19 pandemic is not just the number of patients infected, but the large increase in OHCAs and deaths,” Dr. Prezant and colleagues said.
Identifying patients with the greatest risk for OHCA and death during the COVID-19 pandemic “should allow for early, targeted interventions in the outpatient setting that could lead to reductions in out-of-hospital deaths,” they noted.
“Vulnerable patient populations need outreach, telephonic medicine, televideo medicine, home visits, not just temperature monitoring but home O2 saturation monitoring,” Dr. Prezant said in an interview. “Barriers need to be removed, not just for this pandemic but for the future – no matter what the trigger is.”
Unsung heroes
In an Editor’s Note in JAMA Cardiology, Robert O. Bonow, MD, Northwestern University, Chicago, and colleagues said the American people owe a debt of gratitude to first responders for their “heroic work” triaging, resuscitating, and transporting thousands of people affected by COVID-19.
“Although the typically bustling NYC streets remained eerily deserted, the characteristic cacophony of sounds of the ‘City that Never Sleeps’ was replaced by sirens wailing all hours of the night,” they wrote.
First responders to OHCAs in the COVID-19 era place themselves at extremely high risk, in some cases without optimal personal protective equipment, they pointed out. “Sadly,” many first responders have fallen ill to COVID-19 infection, they added.
As of June 1, 29 EMS workers and volunteers across the United States had died of COVID-19.
They are James Villecco, Gregory Hodge, Tony Thomas, Mike Field, John Redd, Idris Bey, Richard Seaberry, and Sal Mancuso of New York; Israel Tolentino, Reuven Maroth, Liana Sá, Kevin Leiva, Frank Molinari, Robert Weber, Robert Tarrant, Solomon Donald, Scott Geiger, John Farrarella, John Careccia, Bill Nauta, and David Pinto of New Jersey; Kevin Bundy, Robert Zerman, and Jeremy Emerich of Pennsylvania; Paul Cary of Colorado; Paul Novicki of Michigan; David Martin of Mississippi; Billy Birmingham of Missouri; and John “JP” Granger of South Carolina.
“We offer their families, friends, and colleagues our sincerest condolences and honor their memory with our highest respect and gratitude,” Dr. Bonow and colleagues wrote.
This study was supported by the City of New York and the Fire Department of the City of New York. The authors have disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
Daily Recap: ED visits for life-threatening conditions plummet; COVID-19 imaging strategies for kids
Here are the stories our MDedge editors across specialties think you need to know about today:
ED visits drop for life-threatening conditions
Emergency department visits for myocardial infarction, stroke, and hyperglycemic crisis dropped substantially in the 10 weeks after COVID-19 was declared a national emergency, according to new research from the Centers for Disease Control and Prevention.
Compared with the 10-week period from Jan. 5 to March 14, ED visits were down by 23% for MI, 20% for stroke, and 10% for hyperglycemic crisis from March 15 to May 23.
“A short-term decline of this magnitude … is biologically implausible for MI and stroke, especially for older adults, and unlikely for hyperglycemic crisis, and the finding suggests that patients with these conditions either could not access care or were delaying or avoiding seeking care during the early pandemic period,” the researchers wrote in the Morbidity and Mortality Weekly Report. Read more.
Expert recommendations for pediatric COVID-19 imaging
A team of pulmonologists has synthesized the clinical and imaging characteristics of COVID-19 in children, and has issued recommendations for ordering imaging studies in suspected cases of the infection.
Current recommendations from the American College of Radiology (ACR) do not include chest computed tomography (CT) or chest radiography (CXR) as an upfront test to diagnose pediatric COVID-19, but the tests may still have a role in clinical monitoring, especially in patients with a moderate to severe disease course. The potential benefits of utilizing radiologic evaluation – such as establishing a baseline for monitoring disease progression – must be balanced with potential drawbacks, including radiation exposure and reduced availability of imaging resources owing to necessary cleaning and air turnover time.
Based on the most recent international guidelines for pediatric COVID-19 patient management, the authors developed an algorithm for performing imaging studies in suspected cases of COVID-19 pneumonia. The purpose of the tool is to support clinical decision-making around the utilization of CXR and CT to evaluate pediatric COVID-19 pneumonia. “The step by step algorithm addresses the selection, sequence and timing of imaging studies with multiple images illustrating key findings of COVID-19 pneumonia in the pediatric age group,” said Mary Cataletto, MD, of NYU Langone Health in Mineola, N.Y. Read more.
Cortisol levels on COVID-19 admission may be a marker of severity
Patients with COVID-19 who have high levels of the steroid hormone cortisol on admission to the hospital have a substantially increased risk of dying, according to new study findings.
Researchers assessed 535 patients admitted to major London hospitals. Of these, 403 patients were diagnosed with COVID-19 based on a positive result on real-time polymerase chain reaction testing or a strong clinical and radiological suspicion, despite a negative test. Mean cortisol concentrations in patients with COVID-19 were significantly higher than those not diagnosed with the virus and as of May 8, significantly more patients with COVID-19 died than those without (27.8% vs 6.8%).
Measuring cortisol on admission is potentially “another simple marker to use alongside oxygen saturation levels to help us identify which patients need to be admitted immediately, and which may not,” said Waljit S. Dhillo, MBBS, PhD, head of the division of diabetes, endocrinology and metabolism at Imperial College London.
“Having an early indicator of which patients may deteriorate more quickly will help us with providing the best level of care as quickly as possible. In addition, we can also take cortisol levels into account when we are working out how best to treat our patients,” he said. Read more.
Normal-weight prediabetes patients can benefit from lifestyle changes
Adults of normal weight with prediabetes may derive at least as much benefit from lifestyle health coaching programs as adults who are overweight or obese, results of a recent nonrandomized, real-world study show.
Fasting plasma glucose (FPG) normalized in about 63% of prediabetic adults with normal body mass index (BMI) participating in a personalized coaching program that emphasized exercise, nutrition, and weight management. In contrast, FPG normalized in about 52% of overweight and 44% of obese prediabetic individuals participating in the program.
“It is interesting to note that, although the normal weight group lost the least amount of weight, they still benefited from the lifestyle health coaching program... having a resultant greatest decrease in fasting plasma glucose and normalization to a range of someone without prediabetes,” said researcher Mandy Salmon, MS, a medical student at the University of Pennsylvania, Philadelphia. She presented the findings at the virtual annual scientific sessions of the American Diabetes Association. Read more.
Diabetes-related amputations rise in older adults
The recent resurgence in diabetes-related lower-extremity amputations in the United States is not limited to younger adults, according to the author of a recent study that documents similar increases among an older population of Medicare beneficiaries.
While the rate of amputations fell among these older adults from 2000 to 2009, it increased significantly from 2009 to 2017, albeit at a “less severe rate” than recently reported in younger populations, according to study investigator Jessica Harding, PhD, an assistant professor in the department of surgery at Emory University, Atlanta. Dr. Harding reported the results at the virtual annual scientific sessions of the American Diabetes Association.
The rate of nontraumatic lower extremity amputation (NLEA) was ticking upward by more than 1% per year over the 2009-2017 period. Read more.
For more on COVID-19, visit our Resource Center. All of our latest news is available on MDedge.com.
Here are the stories our MDedge editors across specialties think you need to know about today:
ED visits drop for life-threatening conditions
Emergency department visits for myocardial infarction, stroke, and hyperglycemic crisis dropped substantially in the 10 weeks after COVID-19 was declared a national emergency, according to new research from the Centers for Disease Control and Prevention.
Compared with the 10-week period from Jan. 5 to March 14, ED visits were down by 23% for MI, 20% for stroke, and 10% for hyperglycemic crisis from March 15 to May 23.
“A short-term decline of this magnitude … is biologically implausible for MI and stroke, especially for older adults, and unlikely for hyperglycemic crisis, and the finding suggests that patients with these conditions either could not access care or were delaying or avoiding seeking care during the early pandemic period,” the researchers wrote in the Morbidity and Mortality Weekly Report. Read more.
Expert recommendations for pediatric COVID-19 imaging
A team of pulmonologists has synthesized the clinical and imaging characteristics of COVID-19 in children, and has issued recommendations for ordering imaging studies in suspected cases of the infection.
Current recommendations from the American College of Radiology (ACR) do not include chest computed tomography (CT) or chest radiography (CXR) as an upfront test to diagnose pediatric COVID-19, but the tests may still have a role in clinical monitoring, especially in patients with a moderate to severe disease course. The potential benefits of utilizing radiologic evaluation – such as establishing a baseline for monitoring disease progression – must be balanced with potential drawbacks, including radiation exposure and reduced availability of imaging resources owing to necessary cleaning and air turnover time.
Based on the most recent international guidelines for pediatric COVID-19 patient management, the authors developed an algorithm for performing imaging studies in suspected cases of COVID-19 pneumonia. The purpose of the tool is to support clinical decision-making around the utilization of CXR and CT to evaluate pediatric COVID-19 pneumonia. “The step by step algorithm addresses the selection, sequence and timing of imaging studies with multiple images illustrating key findings of COVID-19 pneumonia in the pediatric age group,” said Mary Cataletto, MD, of NYU Langone Health in Mineola, N.Y. Read more.
Cortisol levels on COVID-19 admission may be a marker of severity
Patients with COVID-19 who have high levels of the steroid hormone cortisol on admission to the hospital have a substantially increased risk of dying, according to new study findings.
Researchers assessed 535 patients admitted to major London hospitals. Of these, 403 patients were diagnosed with COVID-19 based on a positive result on real-time polymerase chain reaction testing or a strong clinical and radiological suspicion, despite a negative test. Mean cortisol concentrations in patients with COVID-19 were significantly higher than those not diagnosed with the virus and as of May 8, significantly more patients with COVID-19 died than those without (27.8% vs 6.8%).
Measuring cortisol on admission is potentially “another simple marker to use alongside oxygen saturation levels to help us identify which patients need to be admitted immediately, and which may not,” said Waljit S. Dhillo, MBBS, PhD, head of the division of diabetes, endocrinology and metabolism at Imperial College London.
“Having an early indicator of which patients may deteriorate more quickly will help us with providing the best level of care as quickly as possible. In addition, we can also take cortisol levels into account when we are working out how best to treat our patients,” he said. Read more.
Normal-weight prediabetes patients can benefit from lifestyle changes
Adults of normal weight with prediabetes may derive at least as much benefit from lifestyle health coaching programs as adults who are overweight or obese, results of a recent nonrandomized, real-world study show.
Fasting plasma glucose (FPG) normalized in about 63% of prediabetic adults with normal body mass index (BMI) participating in a personalized coaching program that emphasized exercise, nutrition, and weight management. In contrast, FPG normalized in about 52% of overweight and 44% of obese prediabetic individuals participating in the program.
“It is interesting to note that, although the normal weight group lost the least amount of weight, they still benefited from the lifestyle health coaching program... having a resultant greatest decrease in fasting plasma glucose and normalization to a range of someone without prediabetes,” said researcher Mandy Salmon, MS, a medical student at the University of Pennsylvania, Philadelphia. She presented the findings at the virtual annual scientific sessions of the American Diabetes Association. Read more.
Diabetes-related amputations rise in older adults
The recent resurgence in diabetes-related lower-extremity amputations in the United States is not limited to younger adults, according to the author of a recent study that documents similar increases among an older population of Medicare beneficiaries.
While the rate of amputations fell among these older adults from 2000 to 2009, it increased significantly from 2009 to 2017, albeit at a “less severe rate” than recently reported in younger populations, according to study investigator Jessica Harding, PhD, an assistant professor in the department of surgery at Emory University, Atlanta. Dr. Harding reported the results at the virtual annual scientific sessions of the American Diabetes Association.
The rate of nontraumatic lower extremity amputation (NLEA) was ticking upward by more than 1% per year over the 2009-2017 period. Read more.
For more on COVID-19, visit our Resource Center. All of our latest news is available on MDedge.com.
Here are the stories our MDedge editors across specialties think you need to know about today:
ED visits drop for life-threatening conditions
Emergency department visits for myocardial infarction, stroke, and hyperglycemic crisis dropped substantially in the 10 weeks after COVID-19 was declared a national emergency, according to new research from the Centers for Disease Control and Prevention.
Compared with the 10-week period from Jan. 5 to March 14, ED visits were down by 23% for MI, 20% for stroke, and 10% for hyperglycemic crisis from March 15 to May 23.
“A short-term decline of this magnitude … is biologically implausible for MI and stroke, especially for older adults, and unlikely for hyperglycemic crisis, and the finding suggests that patients with these conditions either could not access care or were delaying or avoiding seeking care during the early pandemic period,” the researchers wrote in the Morbidity and Mortality Weekly Report. Read more.
Expert recommendations for pediatric COVID-19 imaging
A team of pulmonologists has synthesized the clinical and imaging characteristics of COVID-19 in children, and has issued recommendations for ordering imaging studies in suspected cases of the infection.
Current recommendations from the American College of Radiology (ACR) do not include chest computed tomography (CT) or chest radiography (CXR) as an upfront test to diagnose pediatric COVID-19, but the tests may still have a role in clinical monitoring, especially in patients with a moderate to severe disease course. The potential benefits of utilizing radiologic evaluation – such as establishing a baseline for monitoring disease progression – must be balanced with potential drawbacks, including radiation exposure and reduced availability of imaging resources owing to necessary cleaning and air turnover time.
Based on the most recent international guidelines for pediatric COVID-19 patient management, the authors developed an algorithm for performing imaging studies in suspected cases of COVID-19 pneumonia. The purpose of the tool is to support clinical decision-making around the utilization of CXR and CT to evaluate pediatric COVID-19 pneumonia. “The step by step algorithm addresses the selection, sequence and timing of imaging studies with multiple images illustrating key findings of COVID-19 pneumonia in the pediatric age group,” said Mary Cataletto, MD, of NYU Langone Health in Mineola, N.Y. Read more.
Cortisol levels on COVID-19 admission may be a marker of severity
Patients with COVID-19 who have high levels of the steroid hormone cortisol on admission to the hospital have a substantially increased risk of dying, according to new study findings.
Researchers assessed 535 patients admitted to major London hospitals. Of these, 403 patients were diagnosed with COVID-19 based on a positive result on real-time polymerase chain reaction testing or a strong clinical and radiological suspicion, despite a negative test. Mean cortisol concentrations in patients with COVID-19 were significantly higher than those not diagnosed with the virus and as of May 8, significantly more patients with COVID-19 died than those without (27.8% vs 6.8%).
Measuring cortisol on admission is potentially “another simple marker to use alongside oxygen saturation levels to help us identify which patients need to be admitted immediately, and which may not,” said Waljit S. Dhillo, MBBS, PhD, head of the division of diabetes, endocrinology and metabolism at Imperial College London.
“Having an early indicator of which patients may deteriorate more quickly will help us with providing the best level of care as quickly as possible. In addition, we can also take cortisol levels into account when we are working out how best to treat our patients,” he said. Read more.
Normal-weight prediabetes patients can benefit from lifestyle changes
Adults of normal weight with prediabetes may derive at least as much benefit from lifestyle health coaching programs as adults who are overweight or obese, results of a recent nonrandomized, real-world study show.
Fasting plasma glucose (FPG) normalized in about 63% of prediabetic adults with normal body mass index (BMI) participating in a personalized coaching program that emphasized exercise, nutrition, and weight management. In contrast, FPG normalized in about 52% of overweight and 44% of obese prediabetic individuals participating in the program.
“It is interesting to note that, although the normal weight group lost the least amount of weight, they still benefited from the lifestyle health coaching program... having a resultant greatest decrease in fasting plasma glucose and normalization to a range of someone without prediabetes,” said researcher Mandy Salmon, MS, a medical student at the University of Pennsylvania, Philadelphia. She presented the findings at the virtual annual scientific sessions of the American Diabetes Association. Read more.
Diabetes-related amputations rise in older adults
The recent resurgence in diabetes-related lower-extremity amputations in the United States is not limited to younger adults, according to the author of a recent study that documents similar increases among an older population of Medicare beneficiaries.
While the rate of amputations fell among these older adults from 2000 to 2009, it increased significantly from 2009 to 2017, albeit at a “less severe rate” than recently reported in younger populations, according to study investigator Jessica Harding, PhD, an assistant professor in the department of surgery at Emory University, Atlanta. Dr. Harding reported the results at the virtual annual scientific sessions of the American Diabetes Association.
The rate of nontraumatic lower extremity amputation (NLEA) was ticking upward by more than 1% per year over the 2009-2017 period. Read more.
For more on COVID-19, visit our Resource Center. All of our latest news is available on MDedge.com.
ED visits for life-threatening conditions declined early in COVID-19 pandemic
ED visits for myocardial infarction, stroke, and hyperglycemic crisis dropped substantially in the 10 weeks after COVID-19 was declared a national emergency on March 13, according to the Centers for Disease Control and Prevention.
Compared with the 10-week period from Jan. 5 to March 14, ED visits were down by 23% for MI, 20% for stroke, and 10% for hyperglycemic crisis from March 15 to May 23, Samantha J. Lange, MPH, and associates at the CDC reported June 22 in the Morbidity and Mortality Weekly Report.
“A short-term decline of this magnitude … is biologically implausible for MI and stroke, especially for older adults, and unlikely for hyperglycemic crisis, and the finding suggests that patients with these conditions either could not access care or were delaying or avoiding seeking care during the early pandemic period,” they wrote.
The largest decreases in the actual number of visits for MI occurred among both men (down by 2,114, –24%) and women (down by 1,459, –25%) aged 65-74 years. For stroke, men aged 65-74 years had 1,406 (–19%) fewer visits to the ED and women 75-84 years had 1,642 (–23%) fewer visits, the CDC researchers said.
For hypoglycemic crisis, the largest declines during the early pandemic period occurred among younger adults: ED visits for men and women aged 18-44 years were down, respectively, by 419 (–8%) and 775 (–16%), they reported based on data from the National Syndromic Surveillance Program.
“Decreases in ED visits for hyperglycemic crisis might be less striking because patient recognition of this crisis is typically augmented by home glucose monitoring and not reliant upon symptoms alone, as is the case for MI and stroke,” Ms. Lange and her associates noted.
Charting weekly visit numbers showed that the drop for all three conditions actually started the week before the emergency was declared and reached its nadir the week after (March 22) for MI and 2 weeks later (March 29) for stroke and hypoglycemic crisis.
Visits for hypoglycemic crisis have largely returned to normal since those low points, but MI and stroke visits “remain below prepandemic levels” despite gradual increases through April and May, they said.
It has been reported that “deaths not associated with confirmed or probable COVID-19 might have been directly or indirectly attributed to the pandemic. The striking decline in ED visits for acute life-threatening conditions might partially explain observed excess mortality not associated with COVID-19,” the investigators wrote.
ED visits for myocardial infarction, stroke, and hyperglycemic crisis dropped substantially in the 10 weeks after COVID-19 was declared a national emergency on March 13, according to the Centers for Disease Control and Prevention.
Compared with the 10-week period from Jan. 5 to March 14, ED visits were down by 23% for MI, 20% for stroke, and 10% for hyperglycemic crisis from March 15 to May 23, Samantha J. Lange, MPH, and associates at the CDC reported June 22 in the Morbidity and Mortality Weekly Report.
“A short-term decline of this magnitude … is biologically implausible for MI and stroke, especially for older adults, and unlikely for hyperglycemic crisis, and the finding suggests that patients with these conditions either could not access care or were delaying or avoiding seeking care during the early pandemic period,” they wrote.
The largest decreases in the actual number of visits for MI occurred among both men (down by 2,114, –24%) and women (down by 1,459, –25%) aged 65-74 years. For stroke, men aged 65-74 years had 1,406 (–19%) fewer visits to the ED and women 75-84 years had 1,642 (–23%) fewer visits, the CDC researchers said.
For hypoglycemic crisis, the largest declines during the early pandemic period occurred among younger adults: ED visits for men and women aged 18-44 years were down, respectively, by 419 (–8%) and 775 (–16%), they reported based on data from the National Syndromic Surveillance Program.
“Decreases in ED visits for hyperglycemic crisis might be less striking because patient recognition of this crisis is typically augmented by home glucose monitoring and not reliant upon symptoms alone, as is the case for MI and stroke,” Ms. Lange and her associates noted.
Charting weekly visit numbers showed that the drop for all three conditions actually started the week before the emergency was declared and reached its nadir the week after (March 22) for MI and 2 weeks later (March 29) for stroke and hypoglycemic crisis.
Visits for hypoglycemic crisis have largely returned to normal since those low points, but MI and stroke visits “remain below prepandemic levels” despite gradual increases through April and May, they said.
It has been reported that “deaths not associated with confirmed or probable COVID-19 might have been directly or indirectly attributed to the pandemic. The striking decline in ED visits for acute life-threatening conditions might partially explain observed excess mortality not associated with COVID-19,” the investigators wrote.
ED visits for myocardial infarction, stroke, and hyperglycemic crisis dropped substantially in the 10 weeks after COVID-19 was declared a national emergency on March 13, according to the Centers for Disease Control and Prevention.
Compared with the 10-week period from Jan. 5 to March 14, ED visits were down by 23% for MI, 20% for stroke, and 10% for hyperglycemic crisis from March 15 to May 23, Samantha J. Lange, MPH, and associates at the CDC reported June 22 in the Morbidity and Mortality Weekly Report.
“A short-term decline of this magnitude … is biologically implausible for MI and stroke, especially for older adults, and unlikely for hyperglycemic crisis, and the finding suggests that patients with these conditions either could not access care or were delaying or avoiding seeking care during the early pandemic period,” they wrote.
The largest decreases in the actual number of visits for MI occurred among both men (down by 2,114, –24%) and women (down by 1,459, –25%) aged 65-74 years. For stroke, men aged 65-74 years had 1,406 (–19%) fewer visits to the ED and women 75-84 years had 1,642 (–23%) fewer visits, the CDC researchers said.
For hypoglycemic crisis, the largest declines during the early pandemic period occurred among younger adults: ED visits for men and women aged 18-44 years were down, respectively, by 419 (–8%) and 775 (–16%), they reported based on data from the National Syndromic Surveillance Program.
“Decreases in ED visits for hyperglycemic crisis might be less striking because patient recognition of this crisis is typically augmented by home glucose monitoring and not reliant upon symptoms alone, as is the case for MI and stroke,” Ms. Lange and her associates noted.
Charting weekly visit numbers showed that the drop for all three conditions actually started the week before the emergency was declared and reached its nadir the week after (March 22) for MI and 2 weeks later (March 29) for stroke and hypoglycemic crisis.
Visits for hypoglycemic crisis have largely returned to normal since those low points, but MI and stroke visits “remain below prepandemic levels” despite gradual increases through April and May, they said.
It has been reported that “deaths not associated with confirmed or probable COVID-19 might have been directly or indirectly attributed to the pandemic. The striking decline in ED visits for acute life-threatening conditions might partially explain observed excess mortality not associated with COVID-19,” the investigators wrote.
FROM MMWR
Social isolation tied to higher risk of cardiovascular events, death
“These results are especially important in the current times of social isolation during the coronavirus crisis,” Janine Gronewold, PhD, University Hospital in Essen, Germany, told a press briefing.
The mechanism by which social isolation may boost risk for stroke, MI, or death is not clear, but other research has shown that loneliness or lack of contact with close friends and family can affect physical health, said Dr. Gronewold.
The findings were presented at the sixth Congress of the European Academy of Neurology (EAN) 2020, which transitioned to a virtual/online meeting because of the COVID-19 pandemic.
For this new study, researchers analyzed data from 4,139 participants, ranging in age from 45 to 75 years (mean 59.1 years), who were recruited into the large community-based Heinz Nixdorf Recall study. The randomly selected study group was representative of an industrial rural area of Germany, said Dr. Gronewold.
Study participants entered the study with no known cardiovascular disease and were followed for a mean of 13.4 years.
Social supports
Investigators collected information on three types of social support: instrumental (getting help with everyday activities such as buying food), emotional (provided with comfort), and financial (receiving monetary assistance when needed). They also looked at social integration (or social isolation) using an index with scores for marital status, number of contacts with family and friends, and membership in political, religious, community, sports, or professional associations.
Of the total, 501 participants reported a lack of instrumental support, 659 a lack of emotional support, and 907 a lack of financial support. A total of 309 lacked social integration, defined by the lowest level on the social integration index.
Participants were asked annually about new cardiovascular events, including stroke and MI. Over the follow-up period, there were 339 such events and 530 deaths.
After adjustment for age, sex, and social support, the analysis showed that social isolation was significantly associated with an increased risk of cardiovascular events (hazard ratio, 1.44; 95% confidence interval, 0.97-2.14) and all-cause mortality (HR, 1.47; 95% CI, 1.09-1.97).
The new research also showed that lack of financial support was significantly associated with increased risk for a cardiovascular event (HR, 1.30; 95% CI, 1.01-1.67).
Direct effect
Additional models that also adjusted for cardiovascular risk factors, health behaviors, depression, and socioeconomic factors, did not significantly change effect estimates.
“Social relationships protect us from cardiovascular events and mortality, not only via good mood, healthy behavior, and lower cardiovascular risk profile,” Dr. Gronewold said. “They seem to have a direct effect on these outcomes.”
Having strong social relationships is as important to cardiovascular health as classic protective factors such as controlling blood pressure and cholesterol levels, and maintaining a normal weight, said Dr. Gronewold.
The new results are worrying and are particularly important during the current COVID-19 pandemic, as social contact has been restricted in many areas, said Dr. Gronewold.
It is not yet clear why people who are socially isolated have such poor health outcomes, she added.
Dr. Gronewold has reported no relevant financial relationships.
This article first appeared on Medscape.com.
“These results are especially important in the current times of social isolation during the coronavirus crisis,” Janine Gronewold, PhD, University Hospital in Essen, Germany, told a press briefing.
The mechanism by which social isolation may boost risk for stroke, MI, or death is not clear, but other research has shown that loneliness or lack of contact with close friends and family can affect physical health, said Dr. Gronewold.
The findings were presented at the sixth Congress of the European Academy of Neurology (EAN) 2020, which transitioned to a virtual/online meeting because of the COVID-19 pandemic.
For this new study, researchers analyzed data from 4,139 participants, ranging in age from 45 to 75 years (mean 59.1 years), who were recruited into the large community-based Heinz Nixdorf Recall study. The randomly selected study group was representative of an industrial rural area of Germany, said Dr. Gronewold.
Study participants entered the study with no known cardiovascular disease and were followed for a mean of 13.4 years.
Social supports
Investigators collected information on three types of social support: instrumental (getting help with everyday activities such as buying food), emotional (provided with comfort), and financial (receiving monetary assistance when needed). They also looked at social integration (or social isolation) using an index with scores for marital status, number of contacts with family and friends, and membership in political, religious, community, sports, or professional associations.
Of the total, 501 participants reported a lack of instrumental support, 659 a lack of emotional support, and 907 a lack of financial support. A total of 309 lacked social integration, defined by the lowest level on the social integration index.
Participants were asked annually about new cardiovascular events, including stroke and MI. Over the follow-up period, there were 339 such events and 530 deaths.
After adjustment for age, sex, and social support, the analysis showed that social isolation was significantly associated with an increased risk of cardiovascular events (hazard ratio, 1.44; 95% confidence interval, 0.97-2.14) and all-cause mortality (HR, 1.47; 95% CI, 1.09-1.97).
The new research also showed that lack of financial support was significantly associated with increased risk for a cardiovascular event (HR, 1.30; 95% CI, 1.01-1.67).
Direct effect
Additional models that also adjusted for cardiovascular risk factors, health behaviors, depression, and socioeconomic factors, did not significantly change effect estimates.
“Social relationships protect us from cardiovascular events and mortality, not only via good mood, healthy behavior, and lower cardiovascular risk profile,” Dr. Gronewold said. “They seem to have a direct effect on these outcomes.”
Having strong social relationships is as important to cardiovascular health as classic protective factors such as controlling blood pressure and cholesterol levels, and maintaining a normal weight, said Dr. Gronewold.
The new results are worrying and are particularly important during the current COVID-19 pandemic, as social contact has been restricted in many areas, said Dr. Gronewold.
It is not yet clear why people who are socially isolated have such poor health outcomes, she added.
Dr. Gronewold has reported no relevant financial relationships.
This article first appeared on Medscape.com.
“These results are especially important in the current times of social isolation during the coronavirus crisis,” Janine Gronewold, PhD, University Hospital in Essen, Germany, told a press briefing.
The mechanism by which social isolation may boost risk for stroke, MI, or death is not clear, but other research has shown that loneliness or lack of contact with close friends and family can affect physical health, said Dr. Gronewold.
The findings were presented at the sixth Congress of the European Academy of Neurology (EAN) 2020, which transitioned to a virtual/online meeting because of the COVID-19 pandemic.
For this new study, researchers analyzed data from 4,139 participants, ranging in age from 45 to 75 years (mean 59.1 years), who were recruited into the large community-based Heinz Nixdorf Recall study. The randomly selected study group was representative of an industrial rural area of Germany, said Dr. Gronewold.
Study participants entered the study with no known cardiovascular disease and were followed for a mean of 13.4 years.
Social supports
Investigators collected information on three types of social support: instrumental (getting help with everyday activities such as buying food), emotional (provided with comfort), and financial (receiving monetary assistance when needed). They also looked at social integration (or social isolation) using an index with scores for marital status, number of contacts with family and friends, and membership in political, religious, community, sports, or professional associations.
Of the total, 501 participants reported a lack of instrumental support, 659 a lack of emotional support, and 907 a lack of financial support. A total of 309 lacked social integration, defined by the lowest level on the social integration index.
Participants were asked annually about new cardiovascular events, including stroke and MI. Over the follow-up period, there were 339 such events and 530 deaths.
After adjustment for age, sex, and social support, the analysis showed that social isolation was significantly associated with an increased risk of cardiovascular events (hazard ratio, 1.44; 95% confidence interval, 0.97-2.14) and all-cause mortality (HR, 1.47; 95% CI, 1.09-1.97).
The new research also showed that lack of financial support was significantly associated with increased risk for a cardiovascular event (HR, 1.30; 95% CI, 1.01-1.67).
Direct effect
Additional models that also adjusted for cardiovascular risk factors, health behaviors, depression, and socioeconomic factors, did not significantly change effect estimates.
“Social relationships protect us from cardiovascular events and mortality, not only via good mood, healthy behavior, and lower cardiovascular risk profile,” Dr. Gronewold said. “They seem to have a direct effect on these outcomes.”
Having strong social relationships is as important to cardiovascular health as classic protective factors such as controlling blood pressure and cholesterol levels, and maintaining a normal weight, said Dr. Gronewold.
The new results are worrying and are particularly important during the current COVID-19 pandemic, as social contact has been restricted in many areas, said Dr. Gronewold.
It is not yet clear why people who are socially isolated have such poor health outcomes, she added.
Dr. Gronewold has reported no relevant financial relationships.
This article first appeared on Medscape.com.
FROM EAN 2020
As visits for AMI drop during pandemic, deaths rise
The drastic drop in admissions for acute myocardial infarctions (AMI) during the COVID-19 pandemic in Italy has seen a parallel rise in MI fatality rates in those who do present to hospitals, according to a new report. This gives credence to suggestions that people have avoided hospitals during the pandemic despite life-threatening emergencies.
Salvatore De Rosa, MD, PhD, and colleagues reported their results in the European Heart Journal.
“These data return a frightening picture of about half of AMI patients not reaching out to the hospital at all, which will probably significantly increase mortality for AMI and bring with it a number of patients with post-MI heart failure, despite the fact that acute coronary syndrome management protocols were promptly implemented,” Dr. De Rosa, of Magna Graecia University in Catanzaro, Italy, and associates wrote.
Hospitalizations down
The study counted AMIs at 54 hospital coronary care units nationwide for the week of March 12-19, 2020, at the height of the coronavirus outbreak in northern Italy, and compared that with an equivalent week in 2019. The researchers reported 319 AMIs during the week in 2020, compared with 618 in the equivalent 2019 week, a 48% reduction (P < .001). Although the outbreak was worst in northern Italy, the decline in admissions occurred throughout the country.
An analysis of subtype determined the decline in the incidence of ST-segment elevation MI lagged significantly behind that of non-STEMI. STEMI declined from 268 in 2019 to 197 in 2020, a 27% reduction, while hospitalizations for non-STEMI went from 350 to 122, a 65% reduction.
The researchers also found substantial reductions in hospitalizations for heart failure, by 47%, and atrial fibrillation, by 53%. Incidentally, the mean age of atrial fibrillation patients was considerably younger in 2020: 64.6 vs. 70 years.
Death, complications up
AMI patients who managed to get to the hospital during the pandemic also had worse outcomes. Mortality for STEMI cases more than tripled, to 14% during the outbreak, compared with 4% in 2019 (P < .001) and complication rates increased by 80% to 19% (P = .025). Twenty-one STEMI patients were positive for COVID-19 and more than a quarter (29%) died, which was more than two and a half times the 12% death rate in non–COVID-19 STEMI patients.
Analysis of the STEMI group also found that the care gap for women with heart disease worsened significantly during the pandemic, as they comprised 20.3% of cases this year, compared with 25.4% before the pandemic. Also, the reduction in admissions for STEMI during the pandemic was statistically significant at 41% for women, but not for men at 18%.
Non-STEMI patients fared better overall than STEMI patients, but their outcomes also worsened during the pandemic. Non-STEMI patients were significantly less likely to have percutaneous coronary intervention during the pandemic than previously; the rate declined by 13%, from 77% to 66%. The non-STEMI mortality rate nearly doubled, although not statistically significantly, from 1.7% to 3.3%, whereas complication rates actually more than doubled, from 5.1% to 10.7%, a significant difference. Twelve (9.8%) of the non-STEMI patients were COVID-19 positive, but none died.
Trend extends beyond borders
Dr. De Rosa and colleagues noted that their findings are in line with studies that reported similar declines for STEMI interventions in the United States and Spain during the pandemic (J Am Coll Cardiol. 2020. doi: 10.1016/j.jacc.2020.04.011; REC Interv Cardiol. 2020. doi: 10.24875/RECIC.M20000120).
Additionally, a group at Kaiser Permanente in Northern California also reported a 50% decline in the incidence of AMI hospitalizations during the pandemic (N Engl J Med. 2020 May 19. doi: 10.1056/NEJMc2015630). Likewise, a study of aortic dissections in New York reported a sharp decline in procedures during the pandemic in the city, from 13 to 3 a month (J Am Coll Cardiol. 2020 May 15. doi: 10.1016/j.jacc.2020.05.022)
The researchers in Italy didn’t aim to determine the reasons for the decline in AMI hospitalizations, but Dr. De Rosa and colleagues speculated on the following explanations: Fear of contagion in response to media reports, concentration of resources to address COVID-19 may have engendered a sense to defer less urgent care among patients and health care systems, and a true reduction in acute cardiovascular disease because people under stay-at-home orders had low physical stress.
“The concern is fewer MIs most likely means people are dying at home or presenting later as this study suggests,” said Martha Gulati, MD, chief of cardiology at the University of Arizona, Phoenix, in interpreting the results of the Italian study.
That could be a result of a mixed message from the media about accessing health care during the pandemic. “What it suggests to a lot of us is that the media has transmitted this notion that hospitals are busy taking care of COVID-19 patients, but we never said don’t come to hospital if you’re having a heart attack,” Dr. Gulati said. “I think we created some sort of fear that patients if they didn’t have COVID-19 they didn’t want to bother physicians.”
Dr. Gulati, whose practice focuses on women with CVD, said the study’s findings that interventions in women dropped more precipitously than men were concerning. “We know already that women don’t do as well after a heart attack, compared to men, and now we see it worsen it even further when women aren’t presenting,” she said. “We’re worried that this is going to increase the gap.”
Dr. DeRosa and colleagues have no relevant financial relationships to disclose.
SOURCE: De Rosa S et al. Euro Heart J. 2020 May 15. doi: 10.1093/eurheartj/ehaa409.
The drastic drop in admissions for acute myocardial infarctions (AMI) during the COVID-19 pandemic in Italy has seen a parallel rise in MI fatality rates in those who do present to hospitals, according to a new report. This gives credence to suggestions that people have avoided hospitals during the pandemic despite life-threatening emergencies.
Salvatore De Rosa, MD, PhD, and colleagues reported their results in the European Heart Journal.
“These data return a frightening picture of about half of AMI patients not reaching out to the hospital at all, which will probably significantly increase mortality for AMI and bring with it a number of patients with post-MI heart failure, despite the fact that acute coronary syndrome management protocols were promptly implemented,” Dr. De Rosa, of Magna Graecia University in Catanzaro, Italy, and associates wrote.
Hospitalizations down
The study counted AMIs at 54 hospital coronary care units nationwide for the week of March 12-19, 2020, at the height of the coronavirus outbreak in northern Italy, and compared that with an equivalent week in 2019. The researchers reported 319 AMIs during the week in 2020, compared with 618 in the equivalent 2019 week, a 48% reduction (P < .001). Although the outbreak was worst in northern Italy, the decline in admissions occurred throughout the country.
An analysis of subtype determined the decline in the incidence of ST-segment elevation MI lagged significantly behind that of non-STEMI. STEMI declined from 268 in 2019 to 197 in 2020, a 27% reduction, while hospitalizations for non-STEMI went from 350 to 122, a 65% reduction.
The researchers also found substantial reductions in hospitalizations for heart failure, by 47%, and atrial fibrillation, by 53%. Incidentally, the mean age of atrial fibrillation patients was considerably younger in 2020: 64.6 vs. 70 years.
Death, complications up
AMI patients who managed to get to the hospital during the pandemic also had worse outcomes. Mortality for STEMI cases more than tripled, to 14% during the outbreak, compared with 4% in 2019 (P < .001) and complication rates increased by 80% to 19% (P = .025). Twenty-one STEMI patients were positive for COVID-19 and more than a quarter (29%) died, which was more than two and a half times the 12% death rate in non–COVID-19 STEMI patients.
Analysis of the STEMI group also found that the care gap for women with heart disease worsened significantly during the pandemic, as they comprised 20.3% of cases this year, compared with 25.4% before the pandemic. Also, the reduction in admissions for STEMI during the pandemic was statistically significant at 41% for women, but not for men at 18%.
Non-STEMI patients fared better overall than STEMI patients, but their outcomes also worsened during the pandemic. Non-STEMI patients were significantly less likely to have percutaneous coronary intervention during the pandemic than previously; the rate declined by 13%, from 77% to 66%. The non-STEMI mortality rate nearly doubled, although not statistically significantly, from 1.7% to 3.3%, whereas complication rates actually more than doubled, from 5.1% to 10.7%, a significant difference. Twelve (9.8%) of the non-STEMI patients were COVID-19 positive, but none died.
Trend extends beyond borders
Dr. De Rosa and colleagues noted that their findings are in line with studies that reported similar declines for STEMI interventions in the United States and Spain during the pandemic (J Am Coll Cardiol. 2020. doi: 10.1016/j.jacc.2020.04.011; REC Interv Cardiol. 2020. doi: 10.24875/RECIC.M20000120).
Additionally, a group at Kaiser Permanente in Northern California also reported a 50% decline in the incidence of AMI hospitalizations during the pandemic (N Engl J Med. 2020 May 19. doi: 10.1056/NEJMc2015630). Likewise, a study of aortic dissections in New York reported a sharp decline in procedures during the pandemic in the city, from 13 to 3 a month (J Am Coll Cardiol. 2020 May 15. doi: 10.1016/j.jacc.2020.05.022)
The researchers in Italy didn’t aim to determine the reasons for the decline in AMI hospitalizations, but Dr. De Rosa and colleagues speculated on the following explanations: Fear of contagion in response to media reports, concentration of resources to address COVID-19 may have engendered a sense to defer less urgent care among patients and health care systems, and a true reduction in acute cardiovascular disease because people under stay-at-home orders had low physical stress.
“The concern is fewer MIs most likely means people are dying at home or presenting later as this study suggests,” said Martha Gulati, MD, chief of cardiology at the University of Arizona, Phoenix, in interpreting the results of the Italian study.
That could be a result of a mixed message from the media about accessing health care during the pandemic. “What it suggests to a lot of us is that the media has transmitted this notion that hospitals are busy taking care of COVID-19 patients, but we never said don’t come to hospital if you’re having a heart attack,” Dr. Gulati said. “I think we created some sort of fear that patients if they didn’t have COVID-19 they didn’t want to bother physicians.”
Dr. Gulati, whose practice focuses on women with CVD, said the study’s findings that interventions in women dropped more precipitously than men were concerning. “We know already that women don’t do as well after a heart attack, compared to men, and now we see it worsen it even further when women aren’t presenting,” she said. “We’re worried that this is going to increase the gap.”
Dr. DeRosa and colleagues have no relevant financial relationships to disclose.
SOURCE: De Rosa S et al. Euro Heart J. 2020 May 15. doi: 10.1093/eurheartj/ehaa409.
The drastic drop in admissions for acute myocardial infarctions (AMI) during the COVID-19 pandemic in Italy has seen a parallel rise in MI fatality rates in those who do present to hospitals, according to a new report. This gives credence to suggestions that people have avoided hospitals during the pandemic despite life-threatening emergencies.
Salvatore De Rosa, MD, PhD, and colleagues reported their results in the European Heart Journal.
“These data return a frightening picture of about half of AMI patients not reaching out to the hospital at all, which will probably significantly increase mortality for AMI and bring with it a number of patients with post-MI heart failure, despite the fact that acute coronary syndrome management protocols were promptly implemented,” Dr. De Rosa, of Magna Graecia University in Catanzaro, Italy, and associates wrote.
Hospitalizations down
The study counted AMIs at 54 hospital coronary care units nationwide for the week of March 12-19, 2020, at the height of the coronavirus outbreak in northern Italy, and compared that with an equivalent week in 2019. The researchers reported 319 AMIs during the week in 2020, compared with 618 in the equivalent 2019 week, a 48% reduction (P < .001). Although the outbreak was worst in northern Italy, the decline in admissions occurred throughout the country.
An analysis of subtype determined the decline in the incidence of ST-segment elevation MI lagged significantly behind that of non-STEMI. STEMI declined from 268 in 2019 to 197 in 2020, a 27% reduction, while hospitalizations for non-STEMI went from 350 to 122, a 65% reduction.
The researchers also found substantial reductions in hospitalizations for heart failure, by 47%, and atrial fibrillation, by 53%. Incidentally, the mean age of atrial fibrillation patients was considerably younger in 2020: 64.6 vs. 70 years.
Death, complications up
AMI patients who managed to get to the hospital during the pandemic also had worse outcomes. Mortality for STEMI cases more than tripled, to 14% during the outbreak, compared with 4% in 2019 (P < .001) and complication rates increased by 80% to 19% (P = .025). Twenty-one STEMI patients were positive for COVID-19 and more than a quarter (29%) died, which was more than two and a half times the 12% death rate in non–COVID-19 STEMI patients.
Analysis of the STEMI group also found that the care gap for women with heart disease worsened significantly during the pandemic, as they comprised 20.3% of cases this year, compared with 25.4% before the pandemic. Also, the reduction in admissions for STEMI during the pandemic was statistically significant at 41% for women, but not for men at 18%.
Non-STEMI patients fared better overall than STEMI patients, but their outcomes also worsened during the pandemic. Non-STEMI patients were significantly less likely to have percutaneous coronary intervention during the pandemic than previously; the rate declined by 13%, from 77% to 66%. The non-STEMI mortality rate nearly doubled, although not statistically significantly, from 1.7% to 3.3%, whereas complication rates actually more than doubled, from 5.1% to 10.7%, a significant difference. Twelve (9.8%) of the non-STEMI patients were COVID-19 positive, but none died.
Trend extends beyond borders
Dr. De Rosa and colleagues noted that their findings are in line with studies that reported similar declines for STEMI interventions in the United States and Spain during the pandemic (J Am Coll Cardiol. 2020. doi: 10.1016/j.jacc.2020.04.011; REC Interv Cardiol. 2020. doi: 10.24875/RECIC.M20000120).
Additionally, a group at Kaiser Permanente in Northern California also reported a 50% decline in the incidence of AMI hospitalizations during the pandemic (N Engl J Med. 2020 May 19. doi: 10.1056/NEJMc2015630). Likewise, a study of aortic dissections in New York reported a sharp decline in procedures during the pandemic in the city, from 13 to 3 a month (J Am Coll Cardiol. 2020 May 15. doi: 10.1016/j.jacc.2020.05.022)
The researchers in Italy didn’t aim to determine the reasons for the decline in AMI hospitalizations, but Dr. De Rosa and colleagues speculated on the following explanations: Fear of contagion in response to media reports, concentration of resources to address COVID-19 may have engendered a sense to defer less urgent care among patients and health care systems, and a true reduction in acute cardiovascular disease because people under stay-at-home orders had low physical stress.
“The concern is fewer MIs most likely means people are dying at home or presenting later as this study suggests,” said Martha Gulati, MD, chief of cardiology at the University of Arizona, Phoenix, in interpreting the results of the Italian study.
That could be a result of a mixed message from the media about accessing health care during the pandemic. “What it suggests to a lot of us is that the media has transmitted this notion that hospitals are busy taking care of COVID-19 patients, but we never said don’t come to hospital if you’re having a heart attack,” Dr. Gulati said. “I think we created some sort of fear that patients if they didn’t have COVID-19 they didn’t want to bother physicians.”
Dr. Gulati, whose practice focuses on women with CVD, said the study’s findings that interventions in women dropped more precipitously than men were concerning. “We know already that women don’t do as well after a heart attack, compared to men, and now we see it worsen it even further when women aren’t presenting,” she said. “We’re worried that this is going to increase the gap.”
Dr. DeRosa and colleagues have no relevant financial relationships to disclose.
SOURCE: De Rosa S et al. Euro Heart J. 2020 May 15. doi: 10.1093/eurheartj/ehaa409.
FROM THE EUROPEAN HEART JOURNAL
With massive reach, telemedicine transforms STEMI care in Latin America
A novel telemedicine approach to remotely guide ST-segment elevation myocardial infarction treatment in four Latin American countries screened more than 780,000 patients and resulted in a mortality rate of 5.2%, results from a 1-year, prospective, observational study showed.
“We have created a modality where the care of acute MI can be remotely guided,” lead investigator Sameer Mehta, MD, MBA, said during a press briefing at the Society for Cardiovascular Angiography & Interventions virtual annual scientific sessions. “This flattens the disparity between the developed and the developing countries, particularly in the poorer parts of Africa, the Middle East, and Southeast Asia.”
Dr. Mehta, chairman of the Lumen Foundation in Miami, and colleagues developed a “hub and spoke” platform to expand STEMI access to more than 100 million people in Brazil, Colombia, Mexico, and Argentina. For the effort, known as the Latin America Telemedicine Infarct Network (LATIN), “spokes” consisted of small clinics and primary health care centers in remote locations, while the “hubs” were medical centers that provided percutaneous coronary intervention (PCI) and/or coronary artery bypass graft (CABG) surgery. There were 313 spokes, 47 hubs, and more than 2,000 health care professionals who participated in the endeavor, including about 600 physicians.
The study, which is the largest of its kind, implemented a 3T strategy: telemedicine, triage, and transport, “which was the hardest part,” Dr. Mehta said. “In some cases, the spokes were located up to 300 miles away from the hubs. Up to 11% of these spokes in the remote areas did not even have a physician. Some had nurses who were triaging the patients.”
Patients who presented at spoke sites were enrolled into LATIN and data were collected through a form that included patient demographics, previous medical history, and an ECG. This information was sent through an app to one of three telemedicine diagnosis centers with 24/7 access to a cardiologist: one in Colombia, one in Brazil, one in Argentina. Once STEMI was identified by ECG, the STEMI protocol was activated, sending alerts to both designated hub and spoke sites and triggering ambulance dispatch. At the spoke sites, thrombolysis, a pharmaco-invasive strategy, or a primary PCI was performed, depending on case and treatment availability. Patients with successful thrombolysis were stabilized for up to 24 hours before transferral to a hub. Patients for whom reperfusion failed were transferred immediately to a hub for rescue PCI.
Dr. Mehta reported findings from 780,234 telemedicine encounters that occurred in the LATIN network in 2018. Telemedicine experts diagnosed 8,395 patients (1%) with STEMI, of which 3,872 (46%) were urgently treated at 47 hubs. A total of 3,015 (78%) were reperfused with PCI. Time-to-telemedicine diagnosis averaged 3.5 minutes. “It used to take us 11 minutes of time to make a diagnosis by telemedicine,” Dr. Mehta said. “By the time we were done with the trial, the time to diagnosis was brought down to 3.5 minutes.” Average door-to-balloon time was 48 minutes and the STEMI mortality was 5.2%. This represents a 55% reduction in STEMI mortality from when LATIN began as a pilot project in 2013, Dr. Mehta said.
Hypertension was the most prevalent underlying disease (59%), followed by smoking (30%) and diabetes (29%), and the male to female STEMI diagnosis ratio was 1.71. The chief reason for nontreatment was coverage denial from insurance carriers (71%). “Getting payers onboard is extremely difficult, because being located here in Miami, is it very hard for me to convince them about the importance of supporting these people,” Dr. Mehta said. “However, as time has passed [and with] coverage of LATIN by the media, the program has become better known. We have been able to work mainly through the health secretaries [in these four countries], but is difficult from there onward.”
LATIN investigators faced other hurdles, which were unique in each of the four countries. “In Colombia, we were facing all sorts of geographical challenges; Brazil was challenging because of its size of the country and [difficulty establishing relationships with] some of the inner-city hospitals,” he said. “Mexico and Argentina were unique from the telemedicine point of view.” The fact that the care of LATIN patients was navigated from one of three telemedicine diagnosis centers “demonstrates the ability of telemedicine,” he said. “If I am able to guide a patient in Mexico from Bogotá, Colombia, it should be easy to guide a patient from Miami who’s presenting in Zambia.”
Dealing with the lack of ambulance services in Brazil, Colombia, Mexico, and Argentina has also been a hitch to the effort. “There is either a complete lack of ambulances or there is no central ambulance system,” he said. “In one of the earlier cities where we started the program in Colombia, 84% of patients used to self-transport. At the moment, 79% are being transported by ambulance. So, the halo effect of how LATIN has helped MI management has been impressive.”
Despite the lack of a comparator study as robust as LATIN, the program was estimated to reach between $39.6 million and $119 million USD total savings during the study period. This includes the cost of tele-emergency encounters, avoided transfers, and the cost of transportation. The investigators project that by the year 2026, 5 million patients could be triaged by this telemedicine pathway, saving $249 million. “As we are getting excited about the developments and the possibilities of telemedicine in the COVID-19 era, I think the work of LATIN becomes all the more relevant,” Dr. Mehta said during his main presentation.
During the press briefing, Timothy D. Henry, MD, praised the success of LATIN in reaching an underserved population. “The majority of these patients 10 years ago were not being treated with any reperfusion therapy at all,” said Dr. Henry, medical director of The Carl and Edyth Lindner Center for Research and Education at The Christ Hospital in Cincinnati. “With rapid diagnosis and the process of putting [LATIN] in place, that has increased to the point where 78% are now getting primary PCI. That is remarkable.”
LATIN was supported by an educational grant from the Medtronic Foundation. Dr. Mehta and Dr. Henry both reported having no financial disclosures.
A novel telemedicine approach to remotely guide ST-segment elevation myocardial infarction treatment in four Latin American countries screened more than 780,000 patients and resulted in a mortality rate of 5.2%, results from a 1-year, prospective, observational study showed.
“We have created a modality where the care of acute MI can be remotely guided,” lead investigator Sameer Mehta, MD, MBA, said during a press briefing at the Society for Cardiovascular Angiography & Interventions virtual annual scientific sessions. “This flattens the disparity between the developed and the developing countries, particularly in the poorer parts of Africa, the Middle East, and Southeast Asia.”
Dr. Mehta, chairman of the Lumen Foundation in Miami, and colleagues developed a “hub and spoke” platform to expand STEMI access to more than 100 million people in Brazil, Colombia, Mexico, and Argentina. For the effort, known as the Latin America Telemedicine Infarct Network (LATIN), “spokes” consisted of small clinics and primary health care centers in remote locations, while the “hubs” were medical centers that provided percutaneous coronary intervention (PCI) and/or coronary artery bypass graft (CABG) surgery. There were 313 spokes, 47 hubs, and more than 2,000 health care professionals who participated in the endeavor, including about 600 physicians.
The study, which is the largest of its kind, implemented a 3T strategy: telemedicine, triage, and transport, “which was the hardest part,” Dr. Mehta said. “In some cases, the spokes were located up to 300 miles away from the hubs. Up to 11% of these spokes in the remote areas did not even have a physician. Some had nurses who were triaging the patients.”
Patients who presented at spoke sites were enrolled into LATIN and data were collected through a form that included patient demographics, previous medical history, and an ECG. This information was sent through an app to one of three telemedicine diagnosis centers with 24/7 access to a cardiologist: one in Colombia, one in Brazil, one in Argentina. Once STEMI was identified by ECG, the STEMI protocol was activated, sending alerts to both designated hub and spoke sites and triggering ambulance dispatch. At the spoke sites, thrombolysis, a pharmaco-invasive strategy, or a primary PCI was performed, depending on case and treatment availability. Patients with successful thrombolysis were stabilized for up to 24 hours before transferral to a hub. Patients for whom reperfusion failed were transferred immediately to a hub for rescue PCI.
Dr. Mehta reported findings from 780,234 telemedicine encounters that occurred in the LATIN network in 2018. Telemedicine experts diagnosed 8,395 patients (1%) with STEMI, of which 3,872 (46%) were urgently treated at 47 hubs. A total of 3,015 (78%) were reperfused with PCI. Time-to-telemedicine diagnosis averaged 3.5 minutes. “It used to take us 11 minutes of time to make a diagnosis by telemedicine,” Dr. Mehta said. “By the time we were done with the trial, the time to diagnosis was brought down to 3.5 minutes.” Average door-to-balloon time was 48 minutes and the STEMI mortality was 5.2%. This represents a 55% reduction in STEMI mortality from when LATIN began as a pilot project in 2013, Dr. Mehta said.
Hypertension was the most prevalent underlying disease (59%), followed by smoking (30%) and diabetes (29%), and the male to female STEMI diagnosis ratio was 1.71. The chief reason for nontreatment was coverage denial from insurance carriers (71%). “Getting payers onboard is extremely difficult, because being located here in Miami, is it very hard for me to convince them about the importance of supporting these people,” Dr. Mehta said. “However, as time has passed [and with] coverage of LATIN by the media, the program has become better known. We have been able to work mainly through the health secretaries [in these four countries], but is difficult from there onward.”
LATIN investigators faced other hurdles, which were unique in each of the four countries. “In Colombia, we were facing all sorts of geographical challenges; Brazil was challenging because of its size of the country and [difficulty establishing relationships with] some of the inner-city hospitals,” he said. “Mexico and Argentina were unique from the telemedicine point of view.” The fact that the care of LATIN patients was navigated from one of three telemedicine diagnosis centers “demonstrates the ability of telemedicine,” he said. “If I am able to guide a patient in Mexico from Bogotá, Colombia, it should be easy to guide a patient from Miami who’s presenting in Zambia.”
Dealing with the lack of ambulance services in Brazil, Colombia, Mexico, and Argentina has also been a hitch to the effort. “There is either a complete lack of ambulances or there is no central ambulance system,” he said. “In one of the earlier cities where we started the program in Colombia, 84% of patients used to self-transport. At the moment, 79% are being transported by ambulance. So, the halo effect of how LATIN has helped MI management has been impressive.”
Despite the lack of a comparator study as robust as LATIN, the program was estimated to reach between $39.6 million and $119 million USD total savings during the study period. This includes the cost of tele-emergency encounters, avoided transfers, and the cost of transportation. The investigators project that by the year 2026, 5 million patients could be triaged by this telemedicine pathway, saving $249 million. “As we are getting excited about the developments and the possibilities of telemedicine in the COVID-19 era, I think the work of LATIN becomes all the more relevant,” Dr. Mehta said during his main presentation.
During the press briefing, Timothy D. Henry, MD, praised the success of LATIN in reaching an underserved population. “The majority of these patients 10 years ago were not being treated with any reperfusion therapy at all,” said Dr. Henry, medical director of The Carl and Edyth Lindner Center for Research and Education at The Christ Hospital in Cincinnati. “With rapid diagnosis and the process of putting [LATIN] in place, that has increased to the point where 78% are now getting primary PCI. That is remarkable.”
LATIN was supported by an educational grant from the Medtronic Foundation. Dr. Mehta and Dr. Henry both reported having no financial disclosures.
A novel telemedicine approach to remotely guide ST-segment elevation myocardial infarction treatment in four Latin American countries screened more than 780,000 patients and resulted in a mortality rate of 5.2%, results from a 1-year, prospective, observational study showed.
“We have created a modality where the care of acute MI can be remotely guided,” lead investigator Sameer Mehta, MD, MBA, said during a press briefing at the Society for Cardiovascular Angiography & Interventions virtual annual scientific sessions. “This flattens the disparity between the developed and the developing countries, particularly in the poorer parts of Africa, the Middle East, and Southeast Asia.”
Dr. Mehta, chairman of the Lumen Foundation in Miami, and colleagues developed a “hub and spoke” platform to expand STEMI access to more than 100 million people in Brazil, Colombia, Mexico, and Argentina. For the effort, known as the Latin America Telemedicine Infarct Network (LATIN), “spokes” consisted of small clinics and primary health care centers in remote locations, while the “hubs” were medical centers that provided percutaneous coronary intervention (PCI) and/or coronary artery bypass graft (CABG) surgery. There were 313 spokes, 47 hubs, and more than 2,000 health care professionals who participated in the endeavor, including about 600 physicians.
The study, which is the largest of its kind, implemented a 3T strategy: telemedicine, triage, and transport, “which was the hardest part,” Dr. Mehta said. “In some cases, the spokes were located up to 300 miles away from the hubs. Up to 11% of these spokes in the remote areas did not even have a physician. Some had nurses who were triaging the patients.”
Patients who presented at spoke sites were enrolled into LATIN and data were collected through a form that included patient demographics, previous medical history, and an ECG. This information was sent through an app to one of three telemedicine diagnosis centers with 24/7 access to a cardiologist: one in Colombia, one in Brazil, one in Argentina. Once STEMI was identified by ECG, the STEMI protocol was activated, sending alerts to both designated hub and spoke sites and triggering ambulance dispatch. At the spoke sites, thrombolysis, a pharmaco-invasive strategy, or a primary PCI was performed, depending on case and treatment availability. Patients with successful thrombolysis were stabilized for up to 24 hours before transferral to a hub. Patients for whom reperfusion failed were transferred immediately to a hub for rescue PCI.
Dr. Mehta reported findings from 780,234 telemedicine encounters that occurred in the LATIN network in 2018. Telemedicine experts diagnosed 8,395 patients (1%) with STEMI, of which 3,872 (46%) were urgently treated at 47 hubs. A total of 3,015 (78%) were reperfused with PCI. Time-to-telemedicine diagnosis averaged 3.5 minutes. “It used to take us 11 minutes of time to make a diagnosis by telemedicine,” Dr. Mehta said. “By the time we were done with the trial, the time to diagnosis was brought down to 3.5 minutes.” Average door-to-balloon time was 48 minutes and the STEMI mortality was 5.2%. This represents a 55% reduction in STEMI mortality from when LATIN began as a pilot project in 2013, Dr. Mehta said.
Hypertension was the most prevalent underlying disease (59%), followed by smoking (30%) and diabetes (29%), and the male to female STEMI diagnosis ratio was 1.71. The chief reason for nontreatment was coverage denial from insurance carriers (71%). “Getting payers onboard is extremely difficult, because being located here in Miami, is it very hard for me to convince them about the importance of supporting these people,” Dr. Mehta said. “However, as time has passed [and with] coverage of LATIN by the media, the program has become better known. We have been able to work mainly through the health secretaries [in these four countries], but is difficult from there onward.”
LATIN investigators faced other hurdles, which were unique in each of the four countries. “In Colombia, we were facing all sorts of geographical challenges; Brazil was challenging because of its size of the country and [difficulty establishing relationships with] some of the inner-city hospitals,” he said. “Mexico and Argentina were unique from the telemedicine point of view.” The fact that the care of LATIN patients was navigated from one of three telemedicine diagnosis centers “demonstrates the ability of telemedicine,” he said. “If I am able to guide a patient in Mexico from Bogotá, Colombia, it should be easy to guide a patient from Miami who’s presenting in Zambia.”
Dealing with the lack of ambulance services in Brazil, Colombia, Mexico, and Argentina has also been a hitch to the effort. “There is either a complete lack of ambulances or there is no central ambulance system,” he said. “In one of the earlier cities where we started the program in Colombia, 84% of patients used to self-transport. At the moment, 79% are being transported by ambulance. So, the halo effect of how LATIN has helped MI management has been impressive.”
Despite the lack of a comparator study as robust as LATIN, the program was estimated to reach between $39.6 million and $119 million USD total savings during the study period. This includes the cost of tele-emergency encounters, avoided transfers, and the cost of transportation. The investigators project that by the year 2026, 5 million patients could be triaged by this telemedicine pathway, saving $249 million. “As we are getting excited about the developments and the possibilities of telemedicine in the COVID-19 era, I think the work of LATIN becomes all the more relevant,” Dr. Mehta said during his main presentation.
During the press briefing, Timothy D. Henry, MD, praised the success of LATIN in reaching an underserved population. “The majority of these patients 10 years ago were not being treated with any reperfusion therapy at all,” said Dr. Henry, medical director of The Carl and Edyth Lindner Center for Research and Education at The Christ Hospital in Cincinnati. “With rapid diagnosis and the process of putting [LATIN] in place, that has increased to the point where 78% are now getting primary PCI. That is remarkable.”
LATIN was supported by an educational grant from the Medtronic Foundation. Dr. Mehta and Dr. Henry both reported having no financial disclosures.
REPORTING FROM SCAI 2020
Coronary CT angiography gives superior MI risk prediction
In patients with stable chest pain, the burden of low-attenuation noncalcified plaque on coronary CT angiography is a better predictor of future myocardial infarction risk than a cardiovascular risk score, an Agatson coronary artery calcium score, or angiographic severity of coronary stenoses, Michelle C. Williams, MBChB, PhD, reported at the joint scientific sessions of the American College of Cardiology and the World Heart Federation. The meeting was conducted online after its cancellation because of the COVID-19 pandemic.
These findings from a post hoc analysis of the large multicenter SCOT-HEART trial challenge current concepts regarding the supposed superiority of the classic tools for MI risk prediction, noted Dr. Williams, a senior clinical research fellow at the University of Edinburgh.
Indeed, it’s likely that the current established predictors of risk – that is, coronary artery calcium, severity of stenosis, and cardiovascular risk score – are associated with clinical events only indirectly through their correlation with low-attenuated calcified plaque burden, which is the real driver of future MI, she continued.
Histologically, low-attenuated noncalcified plaque on coronary CT angiography (CCTA) is defined by a thin fibrous cap, a large, inflamed, lipid-rich necrotic core, and microcalcification. Previously, Dr. Williams and her coinvestigators demonstrated that visual identification of this unstable plaque subtype is of benefit in predicting future risk of MI (J Am Coll Cardiol. 2019 Jan 29;73[3]:291-301).
But visual identification of plaque subtypes is a crude and laborious process. In her current study, she and her coworkers have taken things a giant step further, using commercially available CCTA software to semiautomatically quantify the burden of this highest-risk plaque subtype as well as all the other subtypes.
This post hoc analysis of the previously reported main SCOT-HEART trial (N Engl J Med. 2018 Sep 6;379[10]:924-933) included 1,769 patients with stable chest pain randomized to standard care with or without CCTA guidance and followed for a median of 4.7 years, during which 41 patients had a fatal or nonfatal MI. At enrollment, 37% of participants had normal coronary arteries, 38% had nonobstructive coronary artery disease (CAD), and the remainder had obstructive CAD.
In a multivariate analysis, low-attenuation noncalcified plaque burden was the strongest predictor of future MI, with an adjusted hazard ratio of 1.6 per doubling. This metric was strongly correlated with coronary artery calcium score, underscoring the limited value of doing noncontrast CT in order to determine a coronary artery calcium score when CCTA is performed.
Low-attenuation plaque burden correlated very strongly with angiographic severity of stenosis, and only weakly with cardiovascular risk score, perhaps explaining the poor prognostic performance of cardiovascular risk scores in SCOT-HEART and other studies, according to Dr. Williams.
Patients with a low-attenuation noncalcified plaque burden greater than 4% in their coronary tree were 4.7 times more likely to have a subsequent MI than were those with a lesser burden. The predictive power was even greater in patients with nonobstructive CAD, where a low-attenuation noncalcified plaque burden in excess of 4% conferred a 6.6-fold greater likelihood of fatal or nonfatal MI, she observed.
Two things need to happen before measurement of low-attenuation noncalcified plaque via CCTA to predict MI risk is ready to be adopted in routine clinical practice, according to Dr. Williams. These SCOT-HEART results need to be validated in other cohorts, a process now underway in the SCOT-HEART 2 trial and other studies. Also, improved software incorporating machine learning is needed in order to speed up the semiautomated analysis of plaque subtypes, which now takes 20-30 minutes.
Dr. Williams reported having no financial conflicts regarding her study, funded by the National Health Service.
In conjunction with her virtual presentation at ACC 2020, the SCOT-HEART study results were published online (Circulation. 2020 Mar 16. doi: 10.1161/CIRCULATIONAHA.119.044720. [Epub ahead of print]).
SOURCE: Williams MC et al. ACC 2020, Abstract 909-06.
In patients with stable chest pain, the burden of low-attenuation noncalcified plaque on coronary CT angiography is a better predictor of future myocardial infarction risk than a cardiovascular risk score, an Agatson coronary artery calcium score, or angiographic severity of coronary stenoses, Michelle C. Williams, MBChB, PhD, reported at the joint scientific sessions of the American College of Cardiology and the World Heart Federation. The meeting was conducted online after its cancellation because of the COVID-19 pandemic.
These findings from a post hoc analysis of the large multicenter SCOT-HEART trial challenge current concepts regarding the supposed superiority of the classic tools for MI risk prediction, noted Dr. Williams, a senior clinical research fellow at the University of Edinburgh.
Indeed, it’s likely that the current established predictors of risk – that is, coronary artery calcium, severity of stenosis, and cardiovascular risk score – are associated with clinical events only indirectly through their correlation with low-attenuated calcified plaque burden, which is the real driver of future MI, she continued.
Histologically, low-attenuated noncalcified plaque on coronary CT angiography (CCTA) is defined by a thin fibrous cap, a large, inflamed, lipid-rich necrotic core, and microcalcification. Previously, Dr. Williams and her coinvestigators demonstrated that visual identification of this unstable plaque subtype is of benefit in predicting future risk of MI (J Am Coll Cardiol. 2019 Jan 29;73[3]:291-301).
But visual identification of plaque subtypes is a crude and laborious process. In her current study, she and her coworkers have taken things a giant step further, using commercially available CCTA software to semiautomatically quantify the burden of this highest-risk plaque subtype as well as all the other subtypes.
This post hoc analysis of the previously reported main SCOT-HEART trial (N Engl J Med. 2018 Sep 6;379[10]:924-933) included 1,769 patients with stable chest pain randomized to standard care with or without CCTA guidance and followed for a median of 4.7 years, during which 41 patients had a fatal or nonfatal MI. At enrollment, 37% of participants had normal coronary arteries, 38% had nonobstructive coronary artery disease (CAD), and the remainder had obstructive CAD.
In a multivariate analysis, low-attenuation noncalcified plaque burden was the strongest predictor of future MI, with an adjusted hazard ratio of 1.6 per doubling. This metric was strongly correlated with coronary artery calcium score, underscoring the limited value of doing noncontrast CT in order to determine a coronary artery calcium score when CCTA is performed.
Low-attenuation plaque burden correlated very strongly with angiographic severity of stenosis, and only weakly with cardiovascular risk score, perhaps explaining the poor prognostic performance of cardiovascular risk scores in SCOT-HEART and other studies, according to Dr. Williams.
Patients with a low-attenuation noncalcified plaque burden greater than 4% in their coronary tree were 4.7 times more likely to have a subsequent MI than were those with a lesser burden. The predictive power was even greater in patients with nonobstructive CAD, where a low-attenuation noncalcified plaque burden in excess of 4% conferred a 6.6-fold greater likelihood of fatal or nonfatal MI, she observed.
Two things need to happen before measurement of low-attenuation noncalcified plaque via CCTA to predict MI risk is ready to be adopted in routine clinical practice, according to Dr. Williams. These SCOT-HEART results need to be validated in other cohorts, a process now underway in the SCOT-HEART 2 trial and other studies. Also, improved software incorporating machine learning is needed in order to speed up the semiautomated analysis of plaque subtypes, which now takes 20-30 minutes.
Dr. Williams reported having no financial conflicts regarding her study, funded by the National Health Service.
In conjunction with her virtual presentation at ACC 2020, the SCOT-HEART study results were published online (Circulation. 2020 Mar 16. doi: 10.1161/CIRCULATIONAHA.119.044720. [Epub ahead of print]).
SOURCE: Williams MC et al. ACC 2020, Abstract 909-06.
In patients with stable chest pain, the burden of low-attenuation noncalcified plaque on coronary CT angiography is a better predictor of future myocardial infarction risk than a cardiovascular risk score, an Agatson coronary artery calcium score, or angiographic severity of coronary stenoses, Michelle C. Williams, MBChB, PhD, reported at the joint scientific sessions of the American College of Cardiology and the World Heart Federation. The meeting was conducted online after its cancellation because of the COVID-19 pandemic.
These findings from a post hoc analysis of the large multicenter SCOT-HEART trial challenge current concepts regarding the supposed superiority of the classic tools for MI risk prediction, noted Dr. Williams, a senior clinical research fellow at the University of Edinburgh.
Indeed, it’s likely that the current established predictors of risk – that is, coronary artery calcium, severity of stenosis, and cardiovascular risk score – are associated with clinical events only indirectly through their correlation with low-attenuated calcified plaque burden, which is the real driver of future MI, she continued.
Histologically, low-attenuated noncalcified plaque on coronary CT angiography (CCTA) is defined by a thin fibrous cap, a large, inflamed, lipid-rich necrotic core, and microcalcification. Previously, Dr. Williams and her coinvestigators demonstrated that visual identification of this unstable plaque subtype is of benefit in predicting future risk of MI (J Am Coll Cardiol. 2019 Jan 29;73[3]:291-301).
But visual identification of plaque subtypes is a crude and laborious process. In her current study, she and her coworkers have taken things a giant step further, using commercially available CCTA software to semiautomatically quantify the burden of this highest-risk plaque subtype as well as all the other subtypes.
This post hoc analysis of the previously reported main SCOT-HEART trial (N Engl J Med. 2018 Sep 6;379[10]:924-933) included 1,769 patients with stable chest pain randomized to standard care with or without CCTA guidance and followed for a median of 4.7 years, during which 41 patients had a fatal or nonfatal MI. At enrollment, 37% of participants had normal coronary arteries, 38% had nonobstructive coronary artery disease (CAD), and the remainder had obstructive CAD.
In a multivariate analysis, low-attenuation noncalcified plaque burden was the strongest predictor of future MI, with an adjusted hazard ratio of 1.6 per doubling. This metric was strongly correlated with coronary artery calcium score, underscoring the limited value of doing noncontrast CT in order to determine a coronary artery calcium score when CCTA is performed.
Low-attenuation plaque burden correlated very strongly with angiographic severity of stenosis, and only weakly with cardiovascular risk score, perhaps explaining the poor prognostic performance of cardiovascular risk scores in SCOT-HEART and other studies, according to Dr. Williams.
Patients with a low-attenuation noncalcified plaque burden greater than 4% in their coronary tree were 4.7 times more likely to have a subsequent MI than were those with a lesser burden. The predictive power was even greater in patients with nonobstructive CAD, where a low-attenuation noncalcified plaque burden in excess of 4% conferred a 6.6-fold greater likelihood of fatal or nonfatal MI, she observed.
Two things need to happen before measurement of low-attenuation noncalcified plaque via CCTA to predict MI risk is ready to be adopted in routine clinical practice, according to Dr. Williams. These SCOT-HEART results need to be validated in other cohorts, a process now underway in the SCOT-HEART 2 trial and other studies. Also, improved software incorporating machine learning is needed in order to speed up the semiautomated analysis of plaque subtypes, which now takes 20-30 minutes.
Dr. Williams reported having no financial conflicts regarding her study, funded by the National Health Service.
In conjunction with her virtual presentation at ACC 2020, the SCOT-HEART study results were published online (Circulation. 2020 Mar 16. doi: 10.1161/CIRCULATIONAHA.119.044720. [Epub ahead of print]).
SOURCE: Williams MC et al. ACC 2020, Abstract 909-06.
FROM ACC 2020