Diverse activation patterns during persistent atrial fibrillation by noncontact charge-density mapping of human atrium.

ABSTRACT:

Background

Global simultaneous recording of atrial activation during atrial fibrillation (AF) can elucidate underlying mechanisms contributing to AF maintenance. A better understanding of these mechanisms may allow for an individualized ablation strategy to treat persistent AF. The study aims to characterize left atrial endocardial activation patterns during AF using noncontact charge-density mapping.

Methods

Twenty-five patients with persistent AF were studied. Activation patterns were characterized into three subtypes: (i) focal with centrifugal activation (FCA); (ii) localized rotational activation (LRA); and (iii) localized irregular activation (LIA). Continuous activation patterns were analyzed and distributed in 18 defined regions in the left atrium.

Results

A t

SUBMITTER: Shi R 

PROVIDER: S-EPMC7411208 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature