Incomplete ablation as a mechanism of atrial fibrillation recurrence and atrial tachycardia development after maze procedure.

ABSTRACT:

Objective

Atrial tachyarrhythmias are the most frequent complication after the maze procedure. We examined the mechanism of atrial tachyarrhythmias in association with the ablation energy and technique used at each lesion and by the findings of postoperative electrophysiological study.

Methods

Four-hundred fifty-three patients who underwent the maze procedure with biatrial incisions and bilateral pulmonary vein (PV) isolation were examined for the incidence and mechanism of recurrence of atrial fibrillation (AF) and development of atrial tachycardia (AT). PV isolation was performed by radiofrequency (RF) ablation, cryothermia, or cut-and-sew technique. The atrioventricular isthmi and the coronary sinus (CS) were ablated by RF, cryothermia, or a combination of these.

Resul

SUBMITTER: Nitta T 

PROVIDER: S-EPMC11883703 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature