A Method of Hypothermia for Open Heart Surgery

Changes in body temperature during profound hypothermic cardiopulmonary bypass in adult patients undergoing aortic arch reconstruction

“…However, we did not investigate this issue because of the lack of information on the reference temperature, i.e., directly measured brain temperature or average temperature of the blood returning from brain. UBT and rectal temperature, commonly used to estimate core temperature during general surgery, have both been shown to significantly lag behind PAT, NPT, or esophageal temperature during induction of hypothermia and its reversal [23][24][25][26], consistent with our results. Because urine is a filtrate of blood, a thermistortipped urinary catheter would provide a reliable measure of core temperature if the urine flow rate were high.…”

Cardiac Arrest Temperature: The Effect of Ethyl Alcohol and Carbon Dioxide on Baboons

“…Both alcohol (Goodman and Gillman, 1970b) and hypercapnia (Nunn, 1962) increase skin blood flow, and therefore increase the rate of heat exchange between an animal and its environment. Therefore one might have expected a higher rate of cooling in the alcohol-treated animals than in the controls (Sellick, 1957). This did not occur, possibly as a result of the insulating effect of the animals' fur.…”

Intramyocardial Temperature Gradients in Dogs During Hypothermia by Surface Cooling

“…T-wave changes after drinking iced water have been reported by for example DOWLING and HELLERSTEIN (1951). The occurrence of profound temperature gradients within the body during cooling was shown by VAN DER HEIDE 1956, CELL et al 1956, SELLICK 1957, BJORK 1960 I t is thus conceivable that the blood coming from the peripheral vessels to the right atrium and ventricle might have a temperature low enough to create temperature gradients in the myocardium and that these gradients might at least be contributing factors to the ST-T changes during hypothermia. and 3 refer to different parts of the left vcntricle and 4 to the right ventricle.…”