The usefulness of catheter ablation even in patients with myocardial impairment: Myocardial extracellular volume assessed by preablation planning computed tomography cannot predict atrial fibrillation recurrence.

ABSTRACT:

Background

Increased left ventricular extracellular volume (ECV) measured by cardiac magnetic resonance imaging is associated with myocardial damage and has been considered to predict atrial fibrillation (AF) recurrence after catheter ablation (CA). However, recent reports suggest that AF recurrence is infrequent even with high ECV owing to advancing ablation technology.

Objective

This study aimed to evaluate the relationship between ECV quantified by computed tomography (CT-ECV), commonly performed before CA, and AF recurrence.

Methods

Consecutive 467 patients undergoing their first CA for AF at our hospital between January 2021 and June 2023 received pre-CA contrast-enhanced CT. The relationship between CT-ECV and AF recurrence within 400 days after CA was examined.

SUBMITTER: Tsuruta Y 

PROVIDER: S-EPMC12800830 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature