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Regional and Transmural Myocardial Temperature Distribution in Cold Chemical Cardioplegia by Heineman, Frederick W.; MacGregor, David C.; Wilson, Gregory J.; Ninomiya, Junichi is a Medicine article available to read on EtoBox.

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Regional and transmural myocardial temperature distribution in cold chemical cardioplegia ## Significance of critical coronary arterial stenosis There is a growing recognition of discrepancies in myocardial temperatures during cold chemical cardioplegia. This study was designed to determine the extent to which coronary arterial stenosis just sufficient to abolish vasodilatory reserve in the working heart. but still compatible with myocardial viability ("critical" stenosis). limits heat transfer from the heart during cardioplegic infusion compared to complete coronary occlusion and no stenosis (control). In nine dogs. temperatures were measured from the subepicardium, midwall, and subendocardium of the left ventricle in the distributions of the circumflex (CCA) and left anterior descending (LAD) coronary arteries plus the aortic root, septum, mediastinum. and ventricular cavities. Cardiopulmonary bypass was instituted with core cooling to 28 0 C. Three infusions of cold (4 0 C), radioactive microsphere-slabeled, potassium chloride arresting solution were administered with (I) /111 stenosis. (2) CCA critical stenosis. and (3) CCA occlusion, with intervening periods of reperfusion . T

Who reads Regional and Transmural Myocardial Temperature Distribution in Cold Chemical Cardioplegia?

Author

Heineman, Frederick W.; MacGregor, David C.; Wilson, Gregory J.; Ninomiya, Junichi

Publisher

CTSNet; American Association for Thoracic Surgery; Mosby Inc.; Elsevier BV; Publons (ISSN 1097-685X)

Published

1981

Language

EN

Field

Medicine (Health Sciences)