Document Detail

Endocardial fragmented electrogram and prediction of ventricular tachycardia by body surface signal-averaged electrocardiographic mapping.
MedLine Citation:
PMID:  7479169     Owner:  NLM     Status:  MEDLINE    
Signal-averaged (SA) electrocardiography and SA electrocardiographic mapping were performed in 50 patients with old myocardial infarction, 19 of whom had left ventricular aneurysm and 11 of whom had clinical sustained ventricular tachycardia. The SA electrocardiogram and SA electrocardiographic mapping data were then compared with those obtained by endocardial catheter mapping in patients with or without fragmented electrograms, sustained ventricular tachycardia, and ventricular aneurysm. Compared to SA electrocardiography, the SA map correlates with sustained VT with improved sensitivity but decreased specificity. However, SA electrocardiographic mapping had the advantage of displaying the extent of the body surface area that was positive for late potentials. In addition, the site of the longest endocardial fragmented electrogram could be predicted by SA electrocardiographic mapping, suggesting that this technique deserves wider clinical application.
Y Sasaki; A Furihata; K Suyama
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  18     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1995 Aug 
Date Detail:
Created Date:  1995-12-07     Completed Date:  1995-12-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1479-86     Citation Subset:  IM    
Second Department of Internal Medicine, Shinshu University School of Medicine, Nagano, Japan.
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MeSH Terms
Action Potentials
Body Surface Potential Mapping / methods*
Cardiac Pacing, Artificial
Electrocardiography / methods*
Gated Blood-Pool Imaging
Heart Aneurysm / physiopathology
Heart Ventricles
Middle Aged
Myocardial Infarction / physiopathology
Prospective Studies
Sensitivity and Specificity
Signal Processing, Computer-Assisted
Tachycardia, Ventricular / diagnosis*,  physiopathology
Ventricular Function, Left
Ventricular Function, Right

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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