Figure 3
Kaplan–Meier curves of (A) overall atrial arrhythmia recurrence, (B) AF recurrence, (C) persistent AF recurrence, (D) atrial tachycardia recurrence, and (E) persistent AF recurrence adjusted with several factors (AAD use, age, body mass index, AF duration, LAD, and AF duration) after the index ablation. The clinical outcomes for each recurrence pattern were compared between patients with and without additional LA roof cryoballoon ablation. The 12-month Kaplan–Meier event-free rate estimates were the following: 79.0% vs. 72.2% (overall recurrence), 83.0% vs. 73.8% (AF recurrence), 91.3% vs. 81.4% (persistent AF recurrence), and 93.9% vs. 96.4% (AT recurrence). AADs, anti-arrhythmic drugs; AT, atrial tachycardia; AF, atrial fibrillation; LA, left atrial; LAD, left atrial diameter