Studies of the effects of hypothermia on regional myocardial blood flow and metabolism during cardiopulmonary bypass. I. The adequately perfused beating, fibrillating, and arrested heart.


The effects of hypothermia (32 degrees, 28 degrees, and 22 degrees C.) on left ventricular flow distribution (microspheres) and oxygen uptake in adequately perfused, beating, empty, fibrillating, and arrested hearts were studied. Minute left ventricular oxygen uptake fell progressively as myocardial temperature was reduced under all conditions. In beating… (More)


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