Association of Atrial Fibrillation Burden With Cardiovascular Outcomes in New-Onset Atrial Fibrillation Complicating Myocardial Infarction.

ABSTRACT:

Background

New-onset atrial fibrillation (NOAF) is a common complication after acute myocardial infarction (AMI) and is associated with poor survival. Atrial fibrillation (AF) burden is used to characterize the severity of AF. However, the association of AF burden with cardiovascular outcomes in NOAF complicating AMI is poorly understood. We aimed to investigate the prognostic impact of AF burden in NOAF complicating AMI.

Methods and results

This multicenter retrospective cohort study included patients with AMI without a medical history of AF who developed the first documented AF during hospitalization between January 2014 and January 2022. AF burden was defined as the percentage of time spent in AF during hospitalization. The primary outcome was a composite of cardiovascula

SUBMITTER: Luo J 

PROVIDER: S-EPMC12184542 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature