Abstract 17014: Prognosis of Patients With Reduced Left Ventricular Function Undergoing Catheter Ablation for Atrial Fibrillation:From Kansai Plus Atrial Fibrillation (KPAF) Registry

Introduction: It has been reported that mortality in atrial fibrillation (AF) patients with reduced left ventricular ejection fraction (EF) is commonly high. However, the efficacy and safety of catheter ablation (CA) for AF in this subset of patients has not been thoroughly determined. The aim of this study was to investigate the prognostic factors for death, stroke, and heart failure hospitalization after CA for AF in patients with reduced EF. Hypothesis: We hypothesized that differences in underlying heart diseases, such as ischemic heart disease (IHD), cardiomyopathy, and valvular heart disease (VHD), had an influence on clinical outcomes after CA for AF in patients with reduced EF. Methods: The Kansai Plus Atrial Fibrillation (KPAF) Registry was a multicenter registry which enrolled 5013 consecutive patients undergoing first-time CA for AF. A total of 141 patients (2.8%) with reduced EF (<40%) was identified by transthoracic echocardiography. Results: During the median follow-up of 1066 [860-1242] day...