Document Detail


Identification of the site of origin of ventricular premature beats and its activation sequence by body surface isopotential map.
MedLine Citation:
PMID:  6170769     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To determine the more exact site of origin of ventricular premature beats (VPBs), body surface maps were recorded in 28 patients, aged 15 to 71 years (mean 52) with no cardiac disorders. The site of origin of VPBs was determined from 1) sequential isopotential maps, 2) ventricular activation time (VAT) map and 3) on the basis of maps during pacemaker stimulation at different ventricular areas. To get a three dimensional idea regarding the progression of the ventricular activation front, zero plane was constructed in the human torso by supposing the plane which includes zero potential line on body surface at each instance of ventricular activation. Unipolar lead electrocardiograms were recorded from 85 lead points over the body surface to obtain maps. The site of origin was determined to be from right ventricle in 15 patients, from top of interventricular septum in 10 patients, and from left ventricle in 3 patients. Of 15 patients with right ventricular premature beats, 3 were from outflow region, 4 were from posterobasal region, 6 were from inflow region and 2 were from apical region. Of 3 patients with left ventricular premature beats, 2 were from posterobasal region and 1 was from high lateral region.
Authors:
H Hayashi; T Ishikawa; H Uematsu
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Japanese circulation journal     Volume:  45     ISSN:  0047-1828     ISO Abbreviation:  Jpn. Circ. J.     Publication Date:  1981 Oct 
Date Detail:
Created Date:  1982-01-28     Completed Date:  1982-01-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7806868     Medline TA:  Jpn Circ J     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  1182-6     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Cardiac Complexes, Premature / physiopathology*
Electrocardiography / methods*
Female
Heart Ventricles / physiopathology
Humans
Male
Middle Aged

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