Document Detail

Termination of ventricular bigeminy by conversion to concealed forms.
MedLine Citation:
PMID:  2439629     Owner:  NLM     Status:  MEDLINE    
Ventricular bigeminy may be either overt or concealed. In this study, we attempted to determine the frequency with which the overt form converted to the concealed variety. Ambulatory electrocardiographic recordings from 25 patients with greater than 40 episodes of monomorphic ventricular bigeminy were examined. A statistically significant (P less than 0.01, binomial distribution) predominance of odd or even number of sinus beats between the end of a bigeminal episode and the next ventricular premature beat was considered to be evidence for conversion of overt to concealed bigeminy. In 14 of the 25 cases, the number of episodes of bigeminy followed by odd numbers of sinus beats was beyond these statistical bounds. In 74 episodes in 9 patients, progressive prolongation of the coupling interval during bigeminy occurred before termination. These data demonstrate the high prevalence of concealment as a mode of termination of bigeminy. In a small number of episodes, this occurs in a pattern suggestive of progressive delay of conduction in or around an arrhythmogenic locus.
D M Mirvis
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of electrocardiology     Volume:  20     ISSN:  0022-0736     ISO Abbreviation:  J Electrocardiol     Publication Date:  1987 Apr 
Date Detail:
Created Date:  1987-07-24     Completed Date:  1987-07-24     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  110-3     Citation Subset:  IM    
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MeSH Terms
Cardiac Complexes, Premature / physiopathology*
Heart Block / physiopathology
Heart Ventricles / physiopathology
Monitoring, Physiologic

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

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