TITLE

CORONARY VENOUS RETURN DURING TOTAL RIGHT HEART-LUNG BYPASS

AUTHOR(S)
Cho, Young W.
PUB. DATE
March 1964
SOURCE
Angiology;Mar1964, Vol. 15 Issue 3, p134
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Coronary venous return is studied during a total right heart-lung bypass procedure on the Nembutal anesthetized mongrel dogs, for 2 to 2½ hours. Apparently, the driving pressure, the oxygen consumption rate, and the intravascular factors are to be the dominant parameters for the regulation of coronary blood flow. However, at a higher aortic pressure range, the coronary flow-pressure curve has reached a plateau; apparently, the oxygenation of the myocardium is carried out by increasing oxygen consumption rate of the myocardium at higher aortic pressure ranges. The possible implication on the changes of myocardial contractile proteins after the bypass is discussed.
ACCESSION #
16371320

 

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