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

Research output: Contribution to journalArticlepeer-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 languageEnglish (US)
Pages (from-to)171-173
Number of pages3
JournalJournal of Arrhythmia
Volume38
Issue number1
DOIs
StatePublished - 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

Fingerprint

Dive into the research topics of 'Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?'. Together they form a unique fingerprint.

Cite this