3.3.1 | Primary effectiveness endpoint
After a mean follow-up of 10.7±2.6 months (Table 3), freedom from atrial tachyarrhythmia recurrence was achieved in 21 (65.6%) patients. Eleven cases (34.4%) experienced atrial tachyarrhythmia recurrence, with 8 cases (25%) being AF recurrence and 3 cases (9.4%) being AFL recurrence. The mean ablation-to-recurrence time was 5.2±2.9 months. Three patients underwent a redo procedure, of whom 2 had AF recurrence and 1 had typical AFL recurrence, which was determined to be peri-tricuspid flutter during the redo procedure. All three patients presented the reconnection sites of LPV and RPV located at the anterior and posterior carina. LAPW reconnection occurred in one case, while both MI and CTI were reconnected in all three cases.