Intracardiac Echocardiography to Assist Anatomical Isthmus Ablation in Repaired Tetralogy of Fallot Patients With Ventricular Tachycardia: Technique and Outcomes.

ABSTRACT:

Background

Successful catheter ablation of ventricular tachycardia (VT) in repaired tetralogy of Fallot (TOF) can be achieved by targeting 1 or more anatomical isthmuses. However, significant interindividual variability in the size and location of surgical patches means careful mapping is required to design ablation lines to block the isthmus. Intracardiac echocardiography (ICE) may assist ablation by accurate identification of individual TOF anatomy.

Objectives

The authors hypothesized ICE-guided VT ablation improved isthmus recognition, ablation, and procedural outcomes.

Methods

Retrospective study of adults with repaired TOF undergoing VT ablation between January 1, 2017 and December 31, 2022. ICE integration was compared to a strategy using electroanatomical mappi

SUBMITTER: Denham NC 

PROVIDER: S-EPMC11530823 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature