Prognostic impact of new-onset atrial fibrillation in myocardial infarction with and without improved ejection fraction.

ABSTRACT:

Aims

Improvement in left ventricular ejection fraction (impEF) often presents in contemporary acute myocardial infarction (AMI) patients. New-onset atrial fibrillation (NOAF) during AMI is an important predictor of subsequential heart failure (HF), while its impact on the trajectory of post-MI left ventricular ejection fraction (LVEF) and prognostic implication in patients with and without impEF remains undetermined. We aimed to investigate the prognostic impacts of NOAF in AMI patients with and without impEF.

Methods and results

Consecutive AMI patients without a prior history of AF between February 2014 and March 2018 with baseline LVEF ≤ 40% and had ≥1 LVEF measurement after baseline were included. ImpEF was defined as a baseline LVEF ≤ 40% and a re-evaluation showed both

SUBMITTER: Luo J 

PROVIDER: S-EPMC11631320 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature