Left atrial deceleration outperforms regional conduction velocity in predicting arrhythmia recurrence following atrial fibrillation ablation.

ABSTRACT:

Background

The slowest regional conduction velocity (CV_min) is associated with atrial arrhythmia (AA) recurrence following atrial fibrillation (AF) ablation; however, the role of conduction deceleration has not been investigated.

Objective

The study sought to assess whether true deceleration (TD) is a better marker than CV_min in identifying abnormal left atrial (LA) substrate and AA recurrence in patients undergoing de novo pulmonary vein isolation (PVI).

Methods

Eighty AF patients and 6 control subjects underwent LA electroanatomic mapping during atrial pacing. The LA was divided into 6 anatomical regions and the regional low-voltage area (LVA), CV_min, and maximum true deceleration (TD_max) were quantified. TD was calculated

SUBMITTER: Massin SZ 

PROVIDER: S-EPMC12302149 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature