Document Detail

Wolff-Parkinson-White syndrome: mechanocardiographic study on the mechanical consequences of ventricular pre-excitation.
MedLine Citation:
PMID:  1136937     Owner:  NLM     Status:  MEDLINE    
To elucidate the mechanical consequences of ventricular pre-excitation in patients with the W,W syndrome, electrical and mechanical events in the ventricles during anomalous pathway conduction and normal atrioventricular conduction were examined mechanocardiographically in 11 cases of Group A and 19 cases of Group B, in whom anomalous pathway conduction was stopped by procaine amide, resulting in normalization of conduction. Eight healthy persons were employed as a control group. In the control group, procaine amide had no significant effect on the mechanocardiographic values. In the WPW syndrome, significant prolongation of the P-X, P-J, P-T, P-C, P-I, P-Ao, and P-II intervals was induced by the drug. From the results of statistical analyses of measured values, it would appear that mechanical events in the ventricles were accelerated by ventricular pre-excitation but the extent of acceleration of the former was less than the extent of prematurity of the latter. The anomalous ventricular pre-excitation occurred earlier in cases of Group B than in those of Group A, while initiation of ventricular contraction, atrioventricular valve closure, and aortic vlave opening were accelerated more in Group A. In one case of Group B, electrical phenomena could not be related to mechanical events.
H Ishikawa; T Kagoshima; S Hasegawa; Y Hoshika; H Yamao
Related Documents :
10826937 - Bundle branch reentrant ventricular tachycardia with two distinct components of qrs com...
748487 - Complete right bundle branch block and acute myocardial infarction an ominous sign.
6673827 - Electrophysiological effects of lidocaine in acute myocardial infarction with bifascicu...
1689027 - Adult acute rheumatic fever: a rare case presenting with left bundle branch block.
24115107 - Reproducibility and correlations of right ventricular end-diastolic volume index measur...
21113057 - Peroxynitrite induces hmgb1 release by cardiac cells in vitro and hmgb1 upregulation in...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American heart journal     Volume:  90     ISSN:  0002-8703     ISO Abbreviation:  Am. Heart J.     Publication Date:  1975 Jul 
Date Detail:
Created Date:  1975-09-03     Completed Date:  1975-09-03     Revised Date:  2006-02-27    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  35-42     Citation Subset:  AIM; IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Heart Conduction System / physiopathology
Heart Ventricles / physiopathology*
Middle Aged
Myocardial Contraction* / drug effects*
Procainamide / diagnostic use
Wolff-Parkinson-White Syndrome / physiopathology*
Reg. No./Substance:

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

Previous Document:  Electrophysiologic effects of isoproterenol on cardiac conduction system in man.
Next Document:  Velocity of contractile element shortening in constrictive pericarditis and the effect of pulsus par...