Association between non-ablated left atrial surface area and rhythm outcome in patients treated with cryoballoon and radiofrequency ablation.

ABSTRACT:

Background

Cryoballoon (CB) pulmonary vein isolation (PVI) offers outcomes comparable to radiofrequency PVI (RF-PVI) in patients with atrial fibrillation (AF) but has limitations for wide circumferential PVI and extra-pulmonary vein (PV) trigger (ExPVT) ablations.

Objective

This study aimed to compare long-term outcomes of CB-PVI vs RF-PVI in patients without ExPVT and explore underlying electroanatomical mechanisms.

Methods

We identified 1902 patients undergoing de novo AF ablation without ExPVT. After propensity matching for age, sex, AF type, and left atrium anteroposterior (LAAP) diameter in patients, we compared AF recurrence in 403 CB-PVI and 403 RF-PVI cases, considering AF type and LAAP diameter. Using a Cox model, we identified the optimal LAAP diameter cutof

SUBMITTER: Kim MH 

PROVIDER: S-EPMC12902223 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature