Postablation follow-up
After the procedure, the patients underwent continuous electrocardiogram (ECG) monitoring for approximately 3 days (until discharge). The patients were followed-up at 1 and 3 months after discharge and underwent a 12 lead ECG recording. We encouraged the patients to check their pulse rate and rhythm every day and to visit our hospital if they experienced any irregular pulses or chest discomfort. ERATs after the ablation were defined as any recurrence of atrial tachyarrhythmias of >30 seconds during the first 90 days of follow up. No antiarrhythmic drugs were administered until ERAF occurred.