Document Detail

Left ventricular motion after bypass operation for coronary artery disease with collaterals.
MedLine Citation:
PMID:  7944705     Owner:  NLM     Status:  MEDLINE    
Left ventricular ejection changes obtained from left ventricle roentgenograms were analyzed before and after coronary artery bypass grafting in 22 consecutive patients with chronic obstructive left anterior descending coronary artery disease receiving collaterals before surgical revascularization. The collateral vessels all disappeared after surgical revascularization. After operation, ejection changes of anterobasal, anterolateral and apical walls supplied by the left anterior descending coronary artery improved from 43.6% +/- 9.7% to 48.5% +/- 8.6% (p < 0.05), from 35.2% +/- 10.9% to 39.4% +/- 9.5% (p < 0.05), and from 46.0% +/- 10.6% to 50.0% +/- 8.7% (p < 0.05), respectively. The improvement in left ventricular wall motion did not appear to be related to the extent of preoperative collateralization. Thus, left ventricular wall motion was impaired in the area supplied by collaterals and was improved by myocardial revascularization. These results suggest that coronary blood flow, even through well-developed collaterals, may not be sufficient, which may produce chronic active ischemia and impaired left ventricular wall motion.
Y Matsuda; Y Tanimoto; Y Kobayashi; K Hayashi; T Masuda; K Sakata
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Annals of thoracic surgery     Volume:  58     ISSN:  0003-4975     ISO Abbreviation:  Ann. Thorac. Surg.     Publication Date:  1994 Sep 
Date Detail:
Created Date:  1994-10-31     Completed Date:  1994-10-31     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  15030100R     Medline TA:  Ann Thorac Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  795-8     Citation Subset:  AIM; IM    
Saiseikai Shimonoseki General Hospital, Yamaguchi, Japan.
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MeSH Terms
Arterial Occlusive Diseases / diagnosis,  physiopathology*,  surgery*
Blood Flow Velocity
Chronic Disease
Collateral Circulation / physiology
Coronary Artery Bypass*
Coronary Disease / diagnosis,  physiopathology*,  surgery*
Heart Catheterization
Middle Aged
Postoperative Care
Preoperative Care
Saphenous Vein / transplantation
Stroke Volume / physiology
Thoracic Arteries / transplantation
Time Factors
Ventricular Function, Left / physiology*

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

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