Document Detail


The Brody effect and change of volume of the heart.
MedLine Citation:
PMID:  3973523     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A simple model study2 is used to compare the relative contributions to the surface ECG of the "Brody effect"1 and positional changes of the heart when the heart volume changes. In certain studies, such as exercise, it is the change in heart volume and its effect on the surface ECG which is of interest. This paper suggests that when the heart volume changes the extent to which it is accompanied by positional change will strongly influence the surface voltage change; the surface voltage may in fact increase or decrease with volume increase. This may explain some of the controversy surrounding the influence of volume change on the surface signal.
Authors:
J N Amoore
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of electrocardiology     Volume:  18     ISSN:  0022-0736     ISO Abbreviation:  J Electrocardiol     Publication Date:  1985 Jan 
Date Detail:
Created Date:  1985-04-05     Completed Date:  1985-04-05     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  71-5     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Blood Physiological Phenomena*
Blood Volume
Cardiac Output*
Cardiac Volume*
Electrocardiography / methods*
Heart Conduction System / physiology*
Humans
Mathematics
Myocardial Contraction
Stroke Volume*
Ventricular Function

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


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