Catheter Ablation of Atrial Tachycardia in a Giant Right Atrium

Thomas Kueffer; Markus Schwerzmann; Alexander Kadner; Laurent Roten

doi:10.1016/j.jaccas.2019.11.039

Catheter Ablation of Atrial Tachycardia in a Giant Right Atrium

JACC Case Rep. 2020 Jan 29;2(2):230-234. doi: 10.1016/j.jaccas.2019.11.039. eCollection 2020 Feb.

Authors

Thomas Kueffer¹, Markus Schwerzmann², Alexander Kadner², Laurent Roten¹

Affiliations

¹ Department of Cardiology, University Hospital Inselspital, University of Bern, Bern, Switzerland.
² Center for Congenital Heart Disease, University Hospital Inselspital, University of Bern, Bern, Switzerland.

Abstract

A 25-year-old male patient with a giant right atrium presented with atrial tachycardia. Electroanatomic mapping revealed micro-re-entry from a low-voltage zone in the region of the right atrial appendage. Linear ablations across the low-voltage zone terminated the tachycardia. The remaining right atrial tissue was electrically normal. (Level of Difficulty: Intermediate.).

Keywords: 3-dimensional imaging; CTI, cavotricuspid isthmus; GRA, giant right atrium; ablation; congenital heart defect; electroanatomic mapping; idiopathic enlargement; supraventricular arrhythmias.

Publication types

Case Reports