Follow-up
All patients were followed up at the outpatient clinic in our
institution at 1,3, 6, 9, and 12 months after ablation. They were asked
about symptoms and underwent both 12-lead ECG recording and 24-hour
Holter ECG monitoring. A mobile ECG recorder was used at the discretion
of the physician. AF recurrence was defined as any atrial
tachyarrhythmias lasting for more than 30 seconds occurring after
3-month blanking period.