Why the study?
Heart failure is a major complication of myocardial infarction that increases morbidity and mortality, but comprehensive epidemiological and clinical data on the Korean population were lacking.
Population
258,916 patients aged ≥ 18 years newly hospitalized for MI between 2010 and 2021 in Korea
Comparison
Patients who developed HF vs those without HF after MI
Design
Nationwide retrospective cohort study
Key result
Developing heart failure after acute myocardial infarction occurred in 14.1% of patients and was associated with a 3-year all-cause mortality of 37.8% versus 21.9% in those without heart failure.
Authors
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Highlights substantial post-MI HF burden; hypothesis-generating for prevention trials but should not yet change practice.
Cohort (n=258,916)
Yes
Absolute Event Rate: 37.8% vs 21.9%
Heart failure is a frequent complication following acute myocardial infarction in the Korean population, occurring in 14.1% of patients and significantly increasing the 3-year risk of all-cause mortality.
Jeon et al. (2026) conducted a cohort in Acute Myocardial Infarction (n=258,916). Heart failure development after MI vs. No heart failure development was evaluated on 3-year cumulative probability of all-cause mortality. Developing heart failure after acute myocardial infarction occurred in 14.1% of patients and was associated with a 3-year all-cause mortality of 37.8% versus 21.9% in those without heart failure.
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