Document Detail

Methods for non-invasive detection of ventricular late potentials--a comparative multicenter study.
MedLine Citation:
PMID:  2420596     Owner:  NLM     Status:  MEDLINE    
To evaluate the methodological problems of the non-invasive registration of late potentials the results obtained with four different averaging devices in the same 109 patients were compared. The high-resolution ECG was obtained from the body surface, high-gain amplified and filtered. With the averaging technique, the improved signal-to-noise ratio was able to detect low-amplitude cardiac activity. The incidence of late potentials detected with the four averaging systems, whose characteristics are described, ranged between 12% and 21%. Corresponding positive results were obtained in 5.5%, corresponding negative results in 68.8%. The reasons for differing results were mainly due to differences in visual or automatic interpretation of the registered fractionated electrical cardiac activity. Additionally, the determination of the end of QRS using the QRS width, obtained from reference leads, may influence the specificity of the methods.
M Oeff; E R von Leitner; R Sthapit; G Breithardt; M Borggrefe; U Karbenn; T Meinertz; R Zotz; W Clas; V Hombach
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article    
Journal Detail:
Title:  European heart journal     Volume:  7     ISSN:  0195-668X     ISO Abbreviation:  Eur. Heart J.     Publication Date:  1986 Jan 
Date Detail:
Created Date:  1986-05-22     Completed Date:  1986-05-22     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8006263     Medline TA:  Eur Heart J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  25-33     Citation Subset:  IM    
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MeSH Terms
Cardiac Complexes, Premature / physiopathology
Cardiomyopathy, Dilated / diagnosis,  physiopathology*
Clinical Trials as Topic
Coronary Disease / diagnosis,  physiopathology*
Electrocardiography / instrumentation,  methods*
Heart Conduction System / physiopathology
Heart Ventricles / physiopathology*
Tachycardia / diagnosis,  physiopathology*

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

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