Pulsed-field ablation versus radiofrequency ablation in patients undergoing repeat catheter ablation for atrial fibrillation.

ABSTRACT:

Background

Pulsed-field ablation (PFA) is noninferior compared with thermal energy sources such as radiofrequency ablation (RFA) or cryoballoon ablation for de novo pulmonary vein isolation (PVI). However, its potential value for repeat catheter ablation (CA) after unsuccessful thermal PVI has not been assessed.

Objective

This study aimed to compare the procedural characteristics, safety, and efficacy between PFA and RFA in patients undergoing repeat CA after previous thermal PVI.

Methods

Patients with recurrent atrial fibrillation (AF) undergoing repeat CA at a tertiary referral center were prospectively enrolled. All redo procedures were guided by a 3-dimensional electroanatomic mapping system and performed using either PFA or RFA.

Results

A total of 185 pati

SUBMITTER: Isenegger C 

PROVIDER: S-EPMC12570212 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature