Follow-up
All patients were evaluated at the clinic every 1-3 months using a
12-lead ECG, 24-h Holter monitor, and portable electrocardiograph when
patients complained of palpitations; thereafter, they were followed-up
annually. Patients whose symptoms recurred were evaluated immediately.
Recurrence of tachycardia and complications after CA were confirmed by
outpatient medical records, event monitors, and follow-up via telephone.
Recurrence was defined as sustained AT or AF lasting over 1 min.