Document Detail

Demonstration of the relationship between heart dimensions and QRS voltage amplitude.
MedLine Citation:
PMID:  8854326     Owner:  NLM     Status:  MEDLINE    
This study was undertaken to elucidate the still debated question of the relationship between cardiac volume and QRS voltage amplitude. The authors studied 14 healthy men, aged 24-61 years (mean age, 41.2 +/- 12.1 years). They underwent a reduction in venous return, produced by simultaneously inflating sphygmomanometric cuffs placed around the most proximal portion of each of the four limbs. In basal conditions and 5 minutes after cuff inflation, two-dimensional and M-mode echocardiograms were recorded with vectorcardiographic loops and scalar Frank leads. The reduction of the venous return to the heart induced a significant decrease of the end-diastolic left ventricular diameter (from 52.4 +/- 4.2 to 48.5 +/- 4.6 mm, P < .001), of the R wave amplitude in leads X and Y, of the sum of the R wave amplitudes in the three leads,and of the maximal vector in the frontal and horizontal planes. No significant changes in the heart rate or arterial blood pressure were observed. These results support Brody's theory concerning the relationship between cardiac blood volume and QRS voltage.
D Castini; E Vitolo; M Ornaghi; F Gentile
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of electrocardiology     Volume:  29     ISSN:  0022-0736     ISO Abbreviation:  J Electrocardiol     Publication Date:  1996 Jul 
Date Detail:
Created Date:  1996-12-11     Completed Date:  1996-12-11     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  169-73     Citation Subset:  IM    
Division of Cardiology, Bassini Hospital, Milan, Italy.
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MeSH Terms
Blood Volume
Heart Ventricles / anatomy & histology*
Middle Aged
Ventricular Function*
Comment In:
J Electrocardiol. 1996 Jul;29(3):175-7   [PMID:  8854327 ]

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