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Abstract
Slight constriction of the ascending aorta, provoking a gradient of pressures no greater
than 30 mm. Hg, augments coronary flow from 20 to 60 per cent, and this augmentation
is not a consequence of increased cardiac work load. As long as the pressure gradient
remains constant, the increase of coronary flow distributed through intercoronary
anastomoses protects the heart from the effects of ligating one main branch of the
left coronary artery and at the same time increases the capacity of most of the nonischemic
cardiac muscle to maintain normal hemodynamics after a cardiac infarction. This method,
therefore, could be effective in the treatment of coronary insufficiency.
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Article info
Publication history
Received:
January 17,
1962
Footnotes
☆Supported in part by Grant H-03137 from the United States Public Health Service and by the Houston Heart Association.
Identification
Copyright
© 1962 Published by Elsevier Inc.