The Value of Rhythm Control in Atrial Functional Mitral Regurgitation Among Patients With Preserved Left Ventricular Ejection Fraction

AIM: To assess the incidence, severity, and predictors of functional atrial mitral regurgitation (FAMR) and its impact on outcomes in patients with heart failure with preserved ejection fraction (HFpEF) depending on the presence of atrial fibrillation (AF). MATERIAL AND METHODS: Data from 218 patients with HFpEF and FAMR hospitalized between 2020 and 2023 were analyzed retrospectively. The median follow-up period was 589 days. ENDPOINTS: rehospitalization for heart failure (HF), cardiovascular death (CVD), and the composite endpoint (CE). RESULTS: Moderate FAMR was detected in 53.3% of patients with AF, and severe FAMR in 15.3%, which was significantly higher than the incidence in patients with sinus rhythm (SR) (24.5% and 8.0%, respectively, p