Idiopathic left ventricular outflow tract ectopy: a single focus with extremely divergent breakouts

BMC Cardiovascular Disorders

Case Report

Sherif Gouda¹  Josef Kautzner²  Petr Peichl²  Dan Wichterle² 

[1] Department of Cardiology, Cairo University, Cairo, Egypt;Department of Cardiology, Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, 14021, Prague, Czech Republic;Department of Cardiology, Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, 14021, Prague, Czech Republic;

关键词: Ventricular tachycardia;    Premature ventricular contractions;    Left ventricular outflow tract;    Preferential conduction;    Non-coronary aortic cusp;    Catheter ablation;   

DOI  :  10.1186/1471-2261-14-161

 received in 2014-04-30, accepted in 2014-09-29,  发布年份 2014

来源: Springer

【 摘 要 】

BackgroundIdiopathic ventricular tachycardia (VT) and/or premature ventricular contractions (PVCs) arise most commonly from the right ventricular outflow tract and less frequently from the left ventricular outflow tract (LVOT), either below or above the semilunar valves.Case presentationWe report a case of 24-year-old man with idiopathic ventricular tachycardia from a single focus in the supravalvular left ventricular outflow tract with two extremely divergent breakouts observed during the ablation procedure.ConclusionFocal sources of ventricular arrhythmia in the aortic root may have different preferential exits and meticulous activation sequence mapping is the preferable strategy to delineate the site of origin.

【 授权许可】

Unknown   
© Gouda et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.