Affiliation:
1. Research Division, St. Vincent Charity Hospital, Cleveland, Ohio
Abstract
The subepicardial: subsendocardial ratio of Rb
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contents was measured and used as an index of the distribution of coronary blood flow to the more superficial and deeper layers of the canine myocardium. In the normally beating heart, the level of intraventricular pressure did not exert any detectable influence upon this ratio of Rb
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contents. In the fibrillating heart, or in an ischemic (and presumably non-beating) region of the beating heart, on the other hand, this ratio increased as intraventricular pressure was progressively raised. It is concluded, therefore, that the intraventricular pressure exerts a significant influence upon the distribution of blood flow to the deeper and more superficial layers of myocardium only in regions which are not beating normally.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Cardiology and Cardiovascular Medicine,Physiology
Reference21 articles.
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2. Subendocardial Infarction: Report of Six Cases and Critical Survey of the Literature
3. The electrocardiogram in the later stages of experimental myoeardial infarction;WILSON F. N.;Proc. A. Am. Pliys.,1933
4. The speed of healing of myocardial infarction
5. Production of an area of homogeneous myocardial infarction in the dog;JENNINGS B. B.;Arch. Path.,1957
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