Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?

Nobuhiro Takasugi; Takumi Yamada; Genki Naruse; Takashi Nakashima; Hiromitsu Kanamori; Hiroyuki Okura

doi:10.1002/joa3.12673

Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?

Nobuhiro Takasugi, Takumi Yamada, Genki Naruse, Takashi Nakashima, Hiromitsu Kanamori, Hiroyuki Okura

Medicine - Cardiology Division

Research output: Contribution to journal › Article › peer-review

Abstract

A ventricular tachycardia (VT) with a left bundle branch block (BBB) pattern exhibited the earliest activation (EA) at the left ventricular basal septum near the His bundle with no excellent pace map (PM). Radiofrequency ablation at the right ventricular basal septum (opposite site of the EA site) changed the QRS morphology of VT to a right BBB pattern that matched a PM at the opposite site in the left ventricle. VT ablation was successful at the earliest activation site. The VT should have originated from an intramural origin with preferential pathways to the endocardial breakout sites in the right and left ventricular septum.

Original language	English (US)
Pages (from-to)	171-173
Number of pages	3
Journal	Journal of Arrhythmia
Volume	38
Issue number	1
DOIs	https://doi.org/10.1002/joa3.12673
State	Published - Feb 2022

Bibliographical note

Publisher Copyright:
© 2021 The Authors. Journal of Arrhythmia published by John Wiley & Sons Australia, Ltd on behalf of Japanese Heart Rhythm Society.

Keywords

QRS morphology
ablation
para-Hisian
preferential pathway
ventricular tachycardia

PubMed: MeSH publication types

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Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?

Abstract

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