| The R-wave deflection interval in lead V3 combining with R-wave amplitude index in lead V1: A new surface ECG algorithm for distinguishing left from right ventricular outflow tract tachycardia origin in patients with transitional lead at V3. | |
| | |
MedLine Citation:
|
PMID: 23273342 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
BACKGROUND: To distinguish left ventricular outflow tract (LVOT) from right ventricular outflow tract (RVOT) origin in idiopathic premature ventricular contractions or ventricular tachycardia (PVCs/VT) patients with transitional lead at V3 is still a challenge. We sought to develop a new electrocardiography (ECG) algorithm for distinguishing LVOT from RVOT origin in patients with idiopathic outflow tract PVCs/VT with precordial transitional lead at V3. METHODS: We analyzed the surface ECG characteristics in a retrospective cohort of idiopathic PVCs/VT patients with transitional lead at V3 who underwent successful radiofrequency catheter ablation and developed a new surface ECG algorithm, then validated it in a prospective cohort. RESULTS: A total of 82 consecutive patients (47±17years, 39% male) underwent radiofrequency catheter ablation of idiopathic outflow tract PVCs/VT between January 2006 and August 2010. Among them, 31 patients (38%) with transitional lead at V3 constituted the retrospective cohort. Based on the areas under the receiver operating characteristic curves, R-wave deflection interval in lead V3>80ms and R-wave amplitude index in lead V1>0.30 were selected to develop the new surface ECG algorithm. It correctly identified the origin sites of eleven from 12 patients in the prospective cohort, yielding the accuracy of 91.7%. CONCLUSIONS: We presented a new simple surface ECG algorithm, R-wave deflection interval in lead V3>80ms combining with R-wave amplitude index in lead V1>0.30 which can reliably distinguish LVOT from RVOT origin in idiopathic outflow tract PVCs/VT in patients with transitional lead at V3. |
| | |
Authors:
|
Zhongwei Cheng; Kang'an Cheng; Hua Deng; Taibo Chen; Peng Gao; Kongbo Zhu; Quan Fang |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-12-26 |
Journal Detail:
|
Title: International journal of cardiology Volume: - ISSN: 1874-1754 ISO Abbreviation: Int. J. Cardiol. Publication Date: 2012 Dec |
Date Detail:
|
Created Date: 2012-12-31 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8200291 Medline TA: Int J Cardiol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2012 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
|
Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China. Electronic address: zhongwei_cheng@hotmail.com. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Left atrial appendage closure with the Amplatzer™ Cardiac Plug: Impact of shape and device sizing ...
Next Document: Diversification of the expanded teleost-specific toll-like receptor family in Atlantic cod, Gadus mo...