Outcomes
Recurrences were adjudicated by the study authors based upon rhythm
tracings in the medical record. Tracings from standard
electrocardiography, wearable rhythm monitoring, and recordings from
cardiac implantable electronic devices (CIED), whether scheduled or
symptom triggered, were permitted and assessed. Recurrence was defined
as recurrent atrial fibrillation, atrial flutter, or atrial tachycardia
of at least 30 seconds duration, after at least 90 days post procedure.
Complications were determined from the medical record. Tamponade was
defined as pericardial effusion requiring pericardiocentesis. Survival
probabilities were computed with a product limit (Kaplan Meier)
approach, censoring patients at the time of recurrence.