Abstract
In studies on mongrel dogs, the microcirculation of the greater omentum during perfusion cooling by pulsatile flow was observed. With perfusion cooling for thirty minutes, the esophageal temperature lowered to about 20°C (the perfusion rate about 150ml/Kg. and the temperature of perfusate about 15°C). During cooling the arterial pressure was almost constant with satisfactory pulse pressure. In those periods, arterioles maintained good axial flow with axial accumulation similar to physiological circulation. Capillary flows were kept well without stasis or shutdown untill circulatory arrest. Those indicate good tissue perfusion and uniform cooling. We suggest that this method of cooling is quite excellent