Mechanisms of Long-Term Recurrence 3 Years After Catheter Ablation of Atrial Fibrillation

This study explored the potential mechanisms of long-term recurrence (LTR) of atrial fibrillation (AF) 3 years after AF catheter ablation (AFCA). AF is a progressive disease, and the mechanism underlying long-term recurrence after AFCA is unclear. Among 2,209 consecutive patients who underwent AFCA, 1,325 (age 59 ± 11 years, 72.5% male) who underwent regular rhythm follow-ups for >3 years were enrolled. Among them, 659 patients remained in sinus...