Medical therapy and anticoagulation management
All AADs were stopped for at least 5 half-lives before CA (amiodarone was discontinued for at least 1 month). After CA, all patients received NOACs or warfarin for at least 2 months. A type I or III antiarrhythmic drug would be prescribed for eligible patients after ablation for 3 months. After the first 3 months of the blanking period, the choice of continuing anticoagulant was left to the physician’s discretion. For patients with any atrial tachyarrhythmia episode, anticoagulant therapy was recommended if the CHA2DS2-VASc score was ≥ 2.