Clinical characteristics and outcomes of acute myocardial infarction during the COVID-19 pandemic: a multicenter retrospective cohort study in Northern China

Abstract Background The impacts of COVID-19 on acute myocardial infarction (AMI) care were heterogeneous. The study aims to analyze the clinical characteristics and outcomes of AMI patients in China during different stages of the COVID-19 pandemic. Methods This is a multicenter retrospective cohort...

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Main Authors: Kang Li, Yannan Pan, Xiaojian Song, Bin Yang, Huifeng Wang, Fan Yang, Quanbao Liu, Xinhong Lin, Shuzhen Zhao, Yuqi Yuan, Ze Zhang, Bin Zhang, Fangfang Fan, Dengfeng Ma
Format: Article
Language:English
Published: BMC 2025-03-01
Series:BMC Cardiovascular Disorders
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Online Access:https://doi.org/10.1186/s12872-025-04686-9
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author Kang Li
Yannan Pan
Xiaojian Song
Bin Yang
Huifeng Wang
Fan Yang
Quanbao Liu
Xinhong Lin
Shuzhen Zhao
Yuqi Yuan
Ze Zhang
Bin Zhang
Fangfang Fan
Dengfeng Ma
author_facet Kang Li
Yannan Pan
Xiaojian Song
Bin Yang
Huifeng Wang
Fan Yang
Quanbao Liu
Xinhong Lin
Shuzhen Zhao
Yuqi Yuan
Ze Zhang
Bin Zhang
Fangfang Fan
Dengfeng Ma
author_sort Kang Li
collection DOAJ
description Abstract Background The impacts of COVID-19 on acute myocardial infarction (AMI) care were heterogeneous. The study aims to analyze the clinical characteristics and outcomes of AMI patients in China during different stages of the COVID-19 pandemic. Methods This is a multicenter retrospective cohort study in Shanxi Province of northern China. Patients diagnosed with AMI during the zero-case, lockdown, and outbreak periods were included. Characteristics and outcomes were analyzed according to time periods and COVID-19 infection. The primary outcome was in-hospital mortality. Additional outcomes included reperfusion times, coronary angiographic measures, procedure or AMI-associated complications, arrhythmia, other adverse events, and left ventricular systolic dysfunction (LVSD). Results The study included 1021 AMI patients, with 393, 250, and 378 from the zero-case, lockdown, and outbreak periods. No differences in in-hospital mortality or other adverse events were found by time periods. By infection status, 264 patients were COVID-positive, and 706 were COVID-negative. The COVID-positive ST-elevation myocardial infarction population had longer symptom-to-first medical contact (3.07 vs. 2.31, p = 0.026), pre-hospital time (4.58 vs. 3.67, p = 0.032), door-to-balloon (1.20 vs. 1.08, p = 0.046), and total ischemic time (5.80 vs. 4.70, p = 0.011). No differences in other in-hospital outcomes were found, except that multivariate logistic regression analysis demonstrated COVID-19 infection was correlated with increased risks of LVSD (OR 1.73, 95% CI 1.11–2.69, p = 0.015). Conclusions In-hospital mortality did not differ by time period or COVID-19 infection status. The COVID-positive AMI patients had longer reperfusion times and higher risks of LVSD. AMI treatments were impacted during the pandemic, and measures are warranted to minimize the reperfusion time.
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spelling doaj-art-50de2681ec824bc49b0e2daadea194192025-08-20T03:40:47ZengBMCBMC Cardiovascular Disorders1471-22612025-03-0125111110.1186/s12872-025-04686-9Clinical characteristics and outcomes of acute myocardial infarction during the COVID-19 pandemic: a multicenter retrospective cohort study in Northern ChinaKang Li0Yannan Pan1Xiaojian Song2Bin Yang3Huifeng Wang4Fan Yang5Quanbao Liu6Xinhong Lin7Shuzhen Zhao8Yuqi Yuan9Ze Zhang10Bin Zhang11Fangfang Fan12Dengfeng Ma13Department of Cardiology, Peking University First HospitalDepartment of Cardiology, Peking University First HospitalDepartment of Cardiology, Shanxi Cardiovascular HospitalDepartment of Cardiology, Second Hospital of Shanxi Medical UniversityDepartment of Cardiology, Taigang General HospitalDepartment of Cardiology, Taiyuan Central HospitalDepartment of Cardiology, Shanxi Cardiovascular HospitalDepartment of Cardiology, Taiyuan Central HospitalDepartment of Cardiology, Taiyuan Central HospitalDepartment of Cardiology, Jincheng People’s HospitalThe Ninth School of clinical medicine, Shanxi Medical UniversityThe Ninth School of clinical medicine, Shanxi Medical UniversityDepartment of Cardiology, Peking University First HospitalDepartment of Cardiology, Taiyuan Central HospitalAbstract Background The impacts of COVID-19 on acute myocardial infarction (AMI) care were heterogeneous. The study aims to analyze the clinical characteristics and outcomes of AMI patients in China during different stages of the COVID-19 pandemic. Methods This is a multicenter retrospective cohort study in Shanxi Province of northern China. Patients diagnosed with AMI during the zero-case, lockdown, and outbreak periods were included. Characteristics and outcomes were analyzed according to time periods and COVID-19 infection. The primary outcome was in-hospital mortality. Additional outcomes included reperfusion times, coronary angiographic measures, procedure or AMI-associated complications, arrhythmia, other adverse events, and left ventricular systolic dysfunction (LVSD). Results The study included 1021 AMI patients, with 393, 250, and 378 from the zero-case, lockdown, and outbreak periods. No differences in in-hospital mortality or other adverse events were found by time periods. By infection status, 264 patients were COVID-positive, and 706 were COVID-negative. The COVID-positive ST-elevation myocardial infarction population had longer symptom-to-first medical contact (3.07 vs. 2.31, p = 0.026), pre-hospital time (4.58 vs. 3.67, p = 0.032), door-to-balloon (1.20 vs. 1.08, p = 0.046), and total ischemic time (5.80 vs. 4.70, p = 0.011). No differences in other in-hospital outcomes were found, except that multivariate logistic regression analysis demonstrated COVID-19 infection was correlated with increased risks of LVSD (OR 1.73, 95% CI 1.11–2.69, p = 0.015). Conclusions In-hospital mortality did not differ by time period or COVID-19 infection status. The COVID-positive AMI patients had longer reperfusion times and higher risks of LVSD. AMI treatments were impacted during the pandemic, and measures are warranted to minimize the reperfusion time.https://doi.org/10.1186/s12872-025-04686-9Acute myocardial infarctionCOVID-19In-hospital outcomesReperfusion time
spellingShingle Kang Li
Yannan Pan
Xiaojian Song
Bin Yang
Huifeng Wang
Fan Yang
Quanbao Liu
Xinhong Lin
Shuzhen Zhao
Yuqi Yuan
Ze Zhang
Bin Zhang
Fangfang Fan
Dengfeng Ma
Clinical characteristics and outcomes of acute myocardial infarction during the COVID-19 pandemic: a multicenter retrospective cohort study in Northern China
BMC Cardiovascular Disorders
Acute myocardial infarction
COVID-19
In-hospital outcomes
Reperfusion time
title Clinical characteristics and outcomes of acute myocardial infarction during the COVID-19 pandemic: a multicenter retrospective cohort study in Northern China
title_full Clinical characteristics and outcomes of acute myocardial infarction during the COVID-19 pandemic: a multicenter retrospective cohort study in Northern China
title_fullStr Clinical characteristics and outcomes of acute myocardial infarction during the COVID-19 pandemic: a multicenter retrospective cohort study in Northern China
title_full_unstemmed Clinical characteristics and outcomes of acute myocardial infarction during the COVID-19 pandemic: a multicenter retrospective cohort study in Northern China
title_short Clinical characteristics and outcomes of acute myocardial infarction during the COVID-19 pandemic: a multicenter retrospective cohort study in Northern China
title_sort clinical characteristics and outcomes of acute myocardial infarction during the covid 19 pandemic a multicenter retrospective cohort study in northern china
topic Acute myocardial infarction
COVID-19
In-hospital outcomes
Reperfusion time
url https://doi.org/10.1186/s12872-025-04686-9
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