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Abstract
The development of tension and the contractile state of the myocardium are the primary
determinants of myocardial oxygen consumption. Recognition of these two factors and
their interrelation has served to explain a number of apparent discrepancies in the
literature. Other factors, including basal myocardial oxygen consumption, activation
energy and external work, also contribute to the myocardial oxygen consumption, but
to a relatively minor extent. An understanding of these general principles should
permit a more rational consideration of the determinants of myocardial oxygen consumption
and the implications of these factors in disease states.
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Article Info
Footnotes
☆From the Cardiovascular Unit, Peter Bent Brigham Hospital, and Harvard Medical School, Boston, Mass.; From the Cardiovascular Unit, Peter Bent Brigham Hospital, and Harvard Medical School, Boston, Mass. This work was supported in part by U. S. Public Health Service Grant No. 9373-2 and in part by American Heart Association Grant No. 9171-2.
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Copyright
© 1968 Published by Elsevier Inc.