Characterizing the recurrence of atrial arrhythmia following macro-reentrant atrial tachycardia ablation in adult patients with repaired tetralogy of Fallot.

ABSTRACT:

Background

The recurrence of arrhythmia following catheter ablation of macro-reentrant atrial tachycardia (MRAT) in repaired tetralogy of Fallot (rTOF) is poorly understood.

Objective

To better describe the incidence, mechanisms, and predictors of recurrent atrial arrhythmia following MRAT ablation in rTOF.

Methods

Patients with rTOF ≥18 years of age who underwent radiofrequency ablation for MRAT (typical/cavotricuspid isthmus-dependent atrial flutter, incisional/scar-mediated MRAT, upper and lower-loop reentry, or left atrial MRAT) at Duke University Hospital from 1996 to 2023 were identified. The primary outcome examined was the first recurrence of atrial arrhythmia (MRAT, atrial fibrillation, or focal atrial tachycardia) lasting ≥30 seconds, captured on a 12-lead e

SUBMITTER: Pinsker BL 

PROVIDER: S-EPMC12411945 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature