Abstract

Background: The prognosis of elderly people with myocardial infarction has improved over the past decade thanks to advances in treatment, but the rate of heart failure due to coronary heart disease continues to increase. Currently, little is known about heart failure with reduced ejection fraction (HFrEF) before discharge in older adults with myocardial infarction. Objective: To determine the rate of pre-discharge heart failure with reduced ejection fraction in elderly patients after myocardial infarction and related factors. Methods: Cross-sectional study involving older patients with myocardial infarction from September 2022 to March 2023 in the Interventional Cardiology Department, Thong Nhat Hospital and the Interventional Cardiology Department, University Medical Center at Ho Chi Minh city. Results: Of 326 ≥ 60 years old patients presented with myocardial infarction, 100 patients (30.7%) had HFrEF before discharge. Compared with the non-HFrEF group, the pre-discharge HFrEF was older and more frail, had a lower rate of coronary angiography and coronary intervention. There was no difference in the BCIS-JS scores between 2 groups, although the pre-discharge BCIS-JS ratio was lower in the HFrEF group. Conclusion: In elderly patients with myocardial nfarction, our study found that the rate of pre-discharge HFrEF was 30.7%. The HFrEF group had a higher number of frail patients, more likely to be medically treated alone, and there was no difference in BCIS-JS scores.