Ultra-high density mapping of intra-atrial reentrant tachycardia in a patient after a lateral tunnel total cavopulmonary connection

Hitoshi Mori; Naokata Sumitomo; Shota Muraji; Noriyuki Iwashita; Toshiki Kobayashi; Ritsushi Kato

doi:10.1002/joa3.12238

Ultra-high density mapping of intra-atrial reentrant tachycardia in a patient after a lateral tunnel total cavopulmonary connection

J Arrhythm. 2019 Sep 16;35(6):848-850. doi: 10.1002/joa3.12238. eCollection 2019 Dec.

Authors

Hitoshi Mori¹, Naokata Sumitomo¹, Shota Muraji¹, Noriyuki Iwashita², Toshiki Kobayashi¹, Ritsushi Kato³

Affiliations

¹ Department of Pediatric Cardiology Saitama Medical University International Medical Center Saitama Japan.
² Department of Pediatrics School of Medicine Keio University Tokyo Japan.
³ Department of Cardiology Saitama Medical University International Medical Center Saitama Japan.

Abstract

We report a case of an 18-year-old male with a postsurgical lateral tunnel (LT) total cavopulmonary connection (TCPC) and supraventricular tachycardia (SVT). Patients after an LT TCPC have complicated suture lines and a considerable area of damaged myocardium in the LT, which could become a complex arrhythmogenic substrate of tachycardias. Detailed three-dimensional (3D) mapping of the LT and atrium is important for a successful ablation. In this patient, successful catheter ablation of two types of complex tachycardias was accomplished using an ultra-high density 3D mapping system inside the LT.

Keywords: catheter ablation; congenital heart disease; fontan operation; lateral tunnel; ultra‐high density mapping.

Publication types

Case Reports