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Figure 3 Flow of patients randomized to circumferential pulmonary vein ablation (CPVA) and antiarrhythmic drug therapy (ADT) groups. (A) After ablation, stable sinus rhythm (SR) was obtained in 85 patients of whom 82 stopped oral anticoagulant therapy (OAT). Of the 11 patients with recurrent atrial fibrillation (AF), 6 underwent a repeat procedure (REDO). Post-ablation atrial tachyarrhythmia (AT) developed in only 3 patients, and all had a successful re-do procedure. (B) Among patients randomized to ADT, 42 patients crossed over to CPVA of whom only 6 had AF recurrence. By study design, AF was considered under control if the patient had no more than 1 episode of AF in a 6-month period.
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