Catheter ablation and AF recurrence
During a median follow-up of 31.8 (18.4, 38.4) months, a total of 66 (50.4%) patients experienced AF recurrence. AF recurrence was compared between patients underwent catheter ablation and medical treatment. In catheter ablation group, 15 patients (21.1%) experienced recurrent AF after 1.15 + 0.36 procedures, while 51 patients (85.0%) in medical treatment group experienced AF recurrence (HR 0.112, 95% CI 0.062 – 0.204, p < 0.001). Figure 2A shows the Kaplan-Meier curves for AF recurrence in both groups (log rank p < 0.001), which remained significant after a 1:1 PSM (log rank p < 0.001) and IPTW analysis (log rank p < 0.001), as shown in Figure 2B and 2C.