Document Detail

Effects of intraaortic balloon pumping on coronary hemodynamics after coronary angioplasty in patients with acute myocardial infarction.
MedLine Citation:
PMID:  1442477     Owner:  NLM     Status:  MEDLINE    
It has been reported that intraaortic balloon pumping can prevent reocclusion after coronary angioplasty for acute myocardial infarction. The speculated mechanism has been the production of markedly enhanced diastolic coronary perfusion pressure; however, most studies have reported that intraaortic balloon pumping has little effect on coronary blood flow. To assess the effectiveness of this procedure, we studied 12 patients with acute anterior myocardial infarction who were undergoing coronary angioplasty and intraaortic balloon pumping. After successful angioplasty, coronary blood flow velocity was measured with a coronary Doppler catheter before and during intraaortic balloon pumping. Although mean coronary blood flow velocity was unchanged, intraaortic balloon pumping increased peak coronary blood flow velocity from 34.6 +/- 5.0 cm/sec (mean +/- SEM) to 46.7 +/- 5.8 cm/sec (p < 0.005). Such an increase in peak coronary blood flow velocity seemed to be a mechanism by which intraaortic balloon pumping could prevent reocclusion after coronary angioplasty for acute myocardial infarction.
M Ishihara; H Sato; H Tateishi; T Kawagoe; Y Muraoka; M Yoshimura
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American heart journal     Volume:  124     ISSN:  0002-8703     ISO Abbreviation:  Am. Heart J.     Publication Date:  1992 Nov 
Date Detail:
Created Date:  1992-12-01     Completed Date:  1992-12-01     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1133-8     Citation Subset:  AIM; IM    
Department of Cardiology, Hiroshima City Hospital, Japan.
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MeSH Terms
Angioplasty, Transluminal, Percutaneous Coronary*
Blood Flow Velocity
Coronary Circulation*
Intra-Aortic Balloon Pumping*
Middle Aged
Myocardial Infarction / physiopathology,  surgery,  therapy*

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