Twelve of 37 consecutive cases had a recurrence after the first catheter ablation, 24 cases did not have a recurrence and 1 case was unable to be followed up because of the loss of contact. Four of the 12 cases underwent catheter ablation twice. Two cases had the same AT as the first session, while the other 2 had were no recurrence after the second session.
AAD, antiarrhythmic drug; AF, atrial fibrillation; AT, atrial tachycardia; RFCA, radio frequency catheter ablation.