Left atrial remodeling and voltage-guided ablation outcome in persistent atrial fibrillation patients over 75 years of age.

ABSTRACT:

Background

The prevalence of atrial fibrillation (AF) increases with age. The improvement in ablation techniques has widened the indications, particularly in elderly patients. Data on LA remodeling and low-voltage zone (LVZ) extent in this subgroup are scarce.

Objective

We assessed the left atrial (LA) bipolar voltage, LVZ extent, and efficacy of voltage-guided ablation in a cohort of patients with persistent AF according to age.

Methods

Three hundred fifty-three patients with persistent AF undergoing a first voltage-guided ablation procedure were enrolled and divided into 2 groups: those <75 years of age (n=286) and those ≥75 years of age (n=67). LA voltage maps were obtained in sinus rhythm. LVZ was defined as <0.5 mV. A propensity score-matching analysis was

SUBMITTER: Marzak H 

PROVIDER: S-EPMC11973668 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature