Document Detail

Q waves and ventricular asynergy: predictive value and hemodynamic significance of anatomic localization.
MedLine Citation:
PMID:  1124715     Owner:  NLM     Status:  MEDLINE    
Two hundred sixteen consecutive patients were evaluated to determine the value of pathologic Q waves in predicting the presence and severity of ventricular asynergy. Of 64 patients with pathologic Q waves, 95 percent demonstrated asynergy. Q waves in the anterior leads denoted asynergy in 30 of 30 patients, anterior asynergy in 29 of 30 and an anterior aneurysm in 25. Q waves in the inferior leads indicated asynergy in 30 of 33 patients, inferior asynergy in 25 of 30 and an associated aneurysm in 19. Conversely, of 52 patients with an aneurysm, 44 also had pathologic Q waves. If Q waves were present, 72 percent of asynergic zones exhibited akinesis or dyskinesis; however, in the absence of Q waves an aneurysm was present in only 22 percent (P less than 0.0001). Hemodynamically, anterior asynergy, whether defined by Q waves or by ventriculography, was associated with more left ventricular dysfunction than was inferior asynergy (P less than 0.01). Of 21 patients with a cardiomyopathy, none had pathologic Q waves. The data indicate that pathologic Q waves can aid significantly in predicting the presence and location of a severely asynergic zone. Although their absence does not exclude the possibility of asynergy, the latter is much less likely and, if present, amy be of milder form.
M M Bodenheimer; V S Banka; R H Helfant
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of cardiology     Volume:  35     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1975 May 
Date Detail:
Created Date:  1975-07-07     Completed Date:  1975-07-07     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  615-8     Citation Subset:  AIM; IM    
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MeSH Terms
Coronary Angiography
Coronary Disease / diagnosis,  physiopathology*,  radiography
Evaluation Studies as Topic
Heart Aneurysm / diagnosis*,  physiopathology
Heart Catheterization
Heart Conduction System / physiopathology*
Heart Ventricles / physiopathology*
Statistics as Topic

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