LONG-TERM RISK OF RECURRENT ARRHYTHMIA IN PATIENTS WITH TYPICAL ATRIAL FLUTTER UNDERGOING PULMONARY VEIN ANTRUM ISOLATION OR CAVO-TRICUSPID ISTHMUS ABLATION WITH PERMANENT ISOLATION

Background: Cavo-tricuspid isthmus isolation (CTI) effectively targets typical atrial flutter (AFL) with a reported success rate of >85%. However, the incidence of new-onset atrial fibrillation (AF) following CTI remains high at around 50%. Purpose: This study examined the risk of AF and AFL in