Outcomes of incident atrial fibrillation in heart failure with preserved or reduced ejection fraction: A community-based study.

Introduction: The best management strategy for patients with atrial fibrillation (AF) with heart failure (HF) and preserved left ventricular ejection fraction (LVEF) is unknown.

Methods And Results: This cohort study was conducted in Olmsted County, Minnesota, with resources of the Rochester Epidemiology Project. Patients with incident AF occurring between 2000 and 2014 with a prior or concurrent HF were included.