Revisiting the characteristics and ablation strategy of biatrial tachycardias: a case series and systematic review.

ABSTRACT:

Aims

To describe the role of left atrial (LA) epicardial conduction and targets of ablation in biatrial tachycardias (BiATs).

Methods and results

Consecutive patients with BiAT diagnosed by high-density mapping and appropriate entrainment were enrolled. A systematic review of case reports or series was then performed. Biatrial tachycardia was identified in 20 patients aged 63.5 ± 11.1 years. Among them, eight had LA epicardial conduction, including four via the ligament of Marshall, two via myocardial fibres between the great cardiac vein (GCV) and LA, one via septopulmonary bundle, and one via myocardial fibres between the posterior wall and coronary sinus. Ablation was targeted at the anatomical isthmus in 14, including 5 undergoing vein of Marshall ethanol infusion and 2

SUBMITTER: Lai Y 

PROVIDER: S-EPMC10062322 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature