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FIRST HEART SOUND ALTERNANS IN MASSIVE PERICARDIAL EFFUSION.
MedLine Citation:
PMID:  15216297     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
First heart sound alternans in the absence of pulsus alternans, or variation in heart rate (i.e., variation in PR interval), occurring in a patient with massive neoplastic pericardial effusion is described. The mechanism appears to be similar to that in electrical alternans and is shown by echocardiography to be related to the cardiac position within the pericardium, with the first heart sound intensity varying according to the distance of the heart from the chest wall. First heart sound alternans, electrical alternans, and alternating cardiac motion within the pericardium disappeared following pericardiocentesis.
Authors:
Michel G. Farah
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Cardiovascular diseases     Volume:  6     ISSN:  -     ISO Abbreviation:  Cardiovasc Dis     Publication Date:  1979 Dec 
Date Detail:
Created Date:  2004-Jun-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0414111     Medline TA:  Cardiovasc Dis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  447-452     Citation Subset:  -    
Affiliation:
Department of Internal Medicine, Case Western Reserve University School of Medicine, and the University Hospitals of Cleveland, Cleveland, Ohio.
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