Electroanatomic Characterization of Conduction Barriers in Sinus/Atrially Paced Rhythm and Association with Intra‐Atrial Reentrant Tachycardia Circuits Following Congenital Heart Disease Surgery

Abstract

The crista terminalis, atriotomy, and right atrial scars can be identified in patients with repaired congenital heart disease by electroanatomic mapping in sinus/atrially paced rhythm. These conduction barriers frequently function as the central obstacle for IART. Demonstration of such features may help focus investigational mapping without reliance on spontaneous initiation of the tachycardia.