Document Detail

T-wave alternans in patients with right ventricular tachycardia.
MedLine Citation:
PMID:  14557695     Owner:  NLM     Status:  MEDLINE    
Microvolt T-wave alternans has been proposed as a new risk marker for ventricular arrhythmias. However, the clinical significance of T-wave alternans in patients with ventricular tachycardia (VT) originating from the right ventricle has been unknown. The study population consisted of 20 patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) or idiopathic VT. T-wave alternans was measured during bicycle exercise testing using the CH 2000 system. Of the 7 patients with ARVC, 6 (86%) were positive for T-wave alternans. On the other hand, only 1 (8%) of 13 patients with idiopathic VT originating from the right-ventricular outflow tract was positive for T-wave alternans.
Osamu Kinoshita; Takeshi Tomita; Takeshi Hanaoka; Hiroshi Tsutsui; Hiroshi Imamura; Yoshikazu Yazaki; Noboru Watanabe; Minoru Hongo; Keishi Kubo
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Validation Studies    
Journal Detail:
Title:  Cardiology     Volume:  100     ISSN:  0008-6312     ISO Abbreviation:  Cardiology     Publication Date:  2003  
Date Detail:
Created Date:  2003-10-14     Completed Date:  2004-04-27     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  1266406     Medline TA:  Cardiology     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  86-92     Citation Subset:  IM    
Copyright Information:
Copyright 2003 S. Karger AG, Basel
First Department of Internal Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
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MeSH Terms
Adipocytes / pathology
Arrhythmogenic Right Ventricular Dysplasia / diagnosis,  etiology,  mortality
Bundle-Branch Block / diagnosis,  etiology,  mortality
Electrophysiologic Techniques, Cardiac
Endomyocardial Fibrosis / diagnosis,  etiology,  mortality
Follow-Up Studies
Heart Catheterization
Heart Ventricles / pathology,  ultrasonography
Middle Aged
Myocardium / cytology,  pathology
Severity of Illness Index
Survival Analysis
Tachycardia, Ventricular / diagnosis,  etiology*,  mortality

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