[Effect of reperfusion changes of the coronary circulation on the adequacy of the myocardial blood supply].
The results of reperfusion coronary circulatory alterations manifested by a rapid cessation of reactive hyperemia and a secondary increase in coronary vascular resistance were studied in acute canine experiments on a model of partial blood flow restriction by 30,, 50, 70, and 90% with subsequent reperfusion. It was shown that most frequently delayed disturbances of myocardial blood supply adequacy, which is qualified as a reperfusion coronarogenic mechanism of secondary coronary failure progression, which differs from the well-known phenomenon of unrestored coronary blood flow, which occurs after blood flow restriction to a greater extent.
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D000818:Animals; D003326:Coronary Circulation / Q000502:physiology*; D004285:Dogs; D005260:Female; D008297:Male; D015428:Myocardial Reperfusion Injury / Q000503:physiopathology*