Document Detail

Excitation of the double chamber right ventricle: electrophysiologic and anatomic correlation.
MedLine Citation:
PMID:  7064849     Owner:  NLM     Status:  MEDLINE    
To examine the excitation of the double chamber right ventricle and the possibility that it results from a displaced, hypertrophied moderator band, seven patients with double chamber right ventricle were studied. All seven had pre- and postoperative electrocardiograms. Intraoperative right ventricular epicardial maps were obtained in three; right ventricular endocardial activation maps performed at postoperative catheterization were obtained in four. In the three patients studied at operation the breakthrough point of right ventricular epicardial activation was demonstrated in a normal inferior location well below the obstructing muscle band. Two patients with right bundle branch block after operation and two others with only right ventricular conduction delay on postoperative electrocardiogram demonstrated high normal right ventricular time with prolongation of activation in the right ventricular outflow or inflow region, or both, suggesting only peripheral injury. These data suggest that activation of the double chamber right ventricle is similar to that of the normal heart. In addition, the observed normal activation sequence militates against the hypothesis that the moderator band is the obstructing bundle.
C J Byrum; M Dick; D M Behrendt; P Hees; A Rosenthal
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of cardiology     Volume:  49     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1982 Apr 
Date Detail:
Created Date:  1982-05-27     Completed Date:  1982-05-27     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1254-8     Citation Subset:  AIM; IM    
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MeSH Terms
Bundle of His / physiopathology
Child, Preschool
Heart Catheterization
Heart Defects, Congenital / pathology,  physiopathology*,  surgery
Heart Ventricles
Intraoperative Care
Postoperative Care

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

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