Prognostic Outcomes in Acute Myocardial Infarction Patients Without Standard Modifiable Risk Factors: A Multiethnic Study of 8,680 Asian Patients

BackgroundAn increasing proportion of patients with acute myocardial infarction (AMI) are presenting without standard modifiable risk factors (SMuRFs) of hypertension, hypercholesterolemia, diabetes, and smoking, but with an unexpectedly increased mortality. This study examined the SMuRF-less patien...

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Main Authors: Gwyneth Kong, Nicholas W. S. Chew, Cheng Han Ng, Yip Han Chin, Oliver Z. H. Lim, Anand Ambhore, Gavin Ng, William Kong, Kian-Keong Poh, Roger Foo, James Yip, Tiong-Cheng Yeo, Adrian Fatt-Hoe Low, Chi-Hang Lee, Mark Yan-Yee Chan, Huay-Cheem Tan, Poay-Huan Loh
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-03-01
Series:Frontiers in Cardiovascular Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2022.869168/full
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author Gwyneth Kong
Nicholas W. S. Chew
Cheng Han Ng
Yip Han Chin
Oliver Z. H. Lim
Anand Ambhore
Anand Ambhore
Gavin Ng
Gavin Ng
William Kong
William Kong
Kian-Keong Poh
Kian-Keong Poh
Roger Foo
Roger Foo
James Yip
James Yip
Tiong-Cheng Yeo
Tiong-Cheng Yeo
Adrian Fatt-Hoe Low
Adrian Fatt-Hoe Low
Chi-Hang Lee
Chi-Hang Lee
Mark Yan-Yee Chan
Mark Yan-Yee Chan
Huay-Cheem Tan
Huay-Cheem Tan
Poay-Huan Loh
Poay-Huan Loh
author_facet Gwyneth Kong
Nicholas W. S. Chew
Cheng Han Ng
Yip Han Chin
Oliver Z. H. Lim
Anand Ambhore
Anand Ambhore
Gavin Ng
Gavin Ng
William Kong
William Kong
Kian-Keong Poh
Kian-Keong Poh
Roger Foo
Roger Foo
James Yip
James Yip
Tiong-Cheng Yeo
Tiong-Cheng Yeo
Adrian Fatt-Hoe Low
Adrian Fatt-Hoe Low
Chi-Hang Lee
Chi-Hang Lee
Mark Yan-Yee Chan
Mark Yan-Yee Chan
Huay-Cheem Tan
Huay-Cheem Tan
Poay-Huan Loh
Poay-Huan Loh
author_sort Gwyneth Kong
collection DOAJ
description BackgroundAn increasing proportion of patients with acute myocardial infarction (AMI) are presenting without standard modifiable risk factors (SMuRFs) of hypertension, hypercholesterolemia, diabetes, and smoking, but with an unexpectedly increased mortality. This study examined the SMuRF-less patients presenting with AMI in a multiethnic Asian population.MethodsWe recruited patients presenting with AMI from 2011 to 2021 and compared the prevalence, clinical characteristics, and outcomes of SMuRF-less and SMuRF patients. Multivariable analysis was used to compare the outcomes of 30-day cardiovascular mortality, all-cause mortality, readmission, cardiogenic shock, stroke, and heart failure. Kaplan–Meier curves were constructed for 30-day cardiovascular mortality, with stratification by ethnicity, gender and AMI type, and 10-year all-cause mortality.ResultsStandard modifiable risk factor-less patients, who made up 8.6% of 8,680 patients, were significantly younger with fewer comorbidities that include stroke and chronic kidney disease, but higher rates of ventricular arrhythmias and inotropic or invasive ventilation requirement. Multivariable analysis showed higher rates of cardiovascular mortality (HR 1.48, 95% CI: 1.09–1.86, p = 0.048), cardiogenic shock (RR: 1.31, 95% CI: 1.09–1.52, p = 0.015), and stroke (RR: 2.51, 95% CI: 1.67–3.34, p = 0.030) among SMuRF-less patients. A 30-day cardiovascular mortality was raised in the SMuRF-less group, with similar trends in men, patients with ST-segment elevation myocardial infarction (STEMI), and the three Asian ethnicities. All-cause mortality remains increased in the SMuRF-less group for up to 5 years.ConclusionThere is a significant proportion of patients with AMI without standard risk factors in Asia, who have worse short-term mortality. This calls for greater focus on the management of this unexpectedly high-risk subgroup of patients.
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spelling doaj.art-0f05e2b988fe4633b5fddb2429581a9e2022-12-22T00:03:56ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2022-03-01910.3389/fcvm.2022.869168869168Prognostic Outcomes in Acute Myocardial Infarction Patients Without Standard Modifiable Risk Factors: A Multiethnic Study of 8,680 Asian PatientsGwyneth Kong0Nicholas W. S. Chew1Cheng Han Ng2Yip Han Chin3Oliver Z. H. Lim4Anand Ambhore5Anand Ambhore6Gavin Ng7Gavin Ng8William Kong9William Kong10Kian-Keong Poh11Kian-Keong Poh12Roger Foo13Roger Foo14James Yip15James Yip16Tiong-Cheng Yeo17Tiong-Cheng Yeo18Adrian Fatt-Hoe Low19Adrian Fatt-Hoe Low20Chi-Hang Lee21Chi-Hang Lee22Mark Yan-Yee Chan23Mark Yan-Yee Chan24Huay-Cheem Tan25Huay-Cheem Tan26Poay-Huan Loh27Poay-Huan Loh28Yong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeYong Loo Lin School of Medicine, National University of Singapore, Singapore, SingaporeDepartment of Cardiology, National University Heart Centre, National University Health System, Singapore, SingaporeBackgroundAn increasing proportion of patients with acute myocardial infarction (AMI) are presenting without standard modifiable risk factors (SMuRFs) of hypertension, hypercholesterolemia, diabetes, and smoking, but with an unexpectedly increased mortality. This study examined the SMuRF-less patients presenting with AMI in a multiethnic Asian population.MethodsWe recruited patients presenting with AMI from 2011 to 2021 and compared the prevalence, clinical characteristics, and outcomes of SMuRF-less and SMuRF patients. Multivariable analysis was used to compare the outcomes of 30-day cardiovascular mortality, all-cause mortality, readmission, cardiogenic shock, stroke, and heart failure. Kaplan–Meier curves were constructed for 30-day cardiovascular mortality, with stratification by ethnicity, gender and AMI type, and 10-year all-cause mortality.ResultsStandard modifiable risk factor-less patients, who made up 8.6% of 8,680 patients, were significantly younger with fewer comorbidities that include stroke and chronic kidney disease, but higher rates of ventricular arrhythmias and inotropic or invasive ventilation requirement. Multivariable analysis showed higher rates of cardiovascular mortality (HR 1.48, 95% CI: 1.09–1.86, p = 0.048), cardiogenic shock (RR: 1.31, 95% CI: 1.09–1.52, p = 0.015), and stroke (RR: 2.51, 95% CI: 1.67–3.34, p = 0.030) among SMuRF-less patients. A 30-day cardiovascular mortality was raised in the SMuRF-less group, with similar trends in men, patients with ST-segment elevation myocardial infarction (STEMI), and the three Asian ethnicities. All-cause mortality remains increased in the SMuRF-less group for up to 5 years.ConclusionThere is a significant proportion of patients with AMI without standard risk factors in Asia, who have worse short-term mortality. This calls for greater focus on the management of this unexpectedly high-risk subgroup of patients.https://www.frontiersin.org/articles/10.3389/fcvm.2022.869168/fullhypertensionhyperlipidemiadiabetesstandard modifiable cardiovascular risk factorsprognostic outcomessmoking
spellingShingle Gwyneth Kong
Nicholas W. S. Chew
Cheng Han Ng
Yip Han Chin
Oliver Z. H. Lim
Anand Ambhore
Anand Ambhore
Gavin Ng
Gavin Ng
William Kong
William Kong
Kian-Keong Poh
Kian-Keong Poh
Roger Foo
Roger Foo
James Yip
James Yip
Tiong-Cheng Yeo
Tiong-Cheng Yeo
Adrian Fatt-Hoe Low
Adrian Fatt-Hoe Low
Chi-Hang Lee
Chi-Hang Lee
Mark Yan-Yee Chan
Mark Yan-Yee Chan
Huay-Cheem Tan
Huay-Cheem Tan
Poay-Huan Loh
Poay-Huan Loh
Prognostic Outcomes in Acute Myocardial Infarction Patients Without Standard Modifiable Risk Factors: A Multiethnic Study of 8,680 Asian Patients
Frontiers in Cardiovascular Medicine
hypertension
hyperlipidemia
diabetes
standard modifiable cardiovascular risk factors
prognostic outcomes
smoking
title Prognostic Outcomes in Acute Myocardial Infarction Patients Without Standard Modifiable Risk Factors: A Multiethnic Study of 8,680 Asian Patients
title_full Prognostic Outcomes in Acute Myocardial Infarction Patients Without Standard Modifiable Risk Factors: A Multiethnic Study of 8,680 Asian Patients
title_fullStr Prognostic Outcomes in Acute Myocardial Infarction Patients Without Standard Modifiable Risk Factors: A Multiethnic Study of 8,680 Asian Patients
title_full_unstemmed Prognostic Outcomes in Acute Myocardial Infarction Patients Without Standard Modifiable Risk Factors: A Multiethnic Study of 8,680 Asian Patients
title_short Prognostic Outcomes in Acute Myocardial Infarction Patients Without Standard Modifiable Risk Factors: A Multiethnic Study of 8,680 Asian Patients
title_sort prognostic outcomes in acute myocardial infarction patients without standard modifiable risk factors a multiethnic study of 8 680 asian patients
topic hypertension
hyperlipidemia
diabetes
standard modifiable cardiovascular risk factors
prognostic outcomes
smoking
url https://www.frontiersin.org/articles/10.3389/fcvm.2022.869168/full
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