Thoracoscopic Surgical Biatrial Ablation vs. Catheter Ablation in Patients with Persistent Atrial Fibrillation

Figure 4

Kaplan–Meier curve showing the percentage of patients free from atrial tachyarrhythmia recurrence (a) without and (b) with AADs in SA and CA groups. AADs, antiarrhythmia drugs; CA, catheter ablation; SA, surgical ablation.

(a)

(b)