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

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) c...

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Autores principales: Takasugi, Nobuhiro, Yamada, Takumi, Naruse, Genki, Nakashima, Takashi, Kanamori, Hiromitsu, Okura, Hiroyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Eps for Resident Physicians
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8851588/
https://www.ncbi.nlm.nih.gov/pubmed/35222767
http://dx.doi.org/10.1002/joa3.12673
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author Takasugi, Nobuhiro
Yamada, Takumi
Naruse, Genki
Nakashima, Takashi
Kanamori, Hiromitsu
Okura, Hiroyuki
author_facet Takasugi, Nobuhiro
Yamada, Takumi
Naruse, Genki
Nakashima, Takashi
Kanamori, Hiromitsu
Okura, Hiroyuki
author_sort Takasugi, Nobuhiro
collection PubMed
description 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.
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spelling pubmed-88515882022-02-25 Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism? Takasugi, Nobuhiro Yamada, Takumi Naruse, Genki Nakashima, Takashi Kanamori, Hiromitsu Okura, Hiroyuki J Arrhythm Eps for Resident Physicians 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. John Wiley and Sons Inc. 2021-12-27 /pmc/articles/PMC8851588/ /pubmed/35222767 http://dx.doi.org/10.1002/joa3.12673 Text en © 2021 The Authors. Journal of Arrhythmia published by John Wiley & Sons Australia, Ltd on behalf of Japanese Heart Rhythm Society. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Eps for Resident Physicians
Takasugi, Nobuhiro
Yamada, Takumi
Naruse, Genki
Nakashima, Takashi
Kanamori, Hiromitsu
Okura, Hiroyuki
Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?
title Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?
title_full Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?
title_fullStr Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?
title_full_unstemmed Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?
title_short Radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: What is the mechanism?
title_sort radiofrequency ablation on the right ventricular septum changed a bundle branch block pattern of a ventricular tachycardia: what is the mechanism?
topic Eps for Resident Physicians
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8851588/
https://www.ncbi.nlm.nih.gov/pubmed/35222767
http://dx.doi.org/10.1002/joa3.12673
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