Abstract
Normothermic (36.5°C) cardiopulmonary bypass (CPB) and mild hypothermic (32°C) CPB were compared and studied. There is no significant difference in CPB time and aortic clamp time between two groups, but reperfusion time is significantly shorter in the normothermic group. Systemic vascular resistance (SVR) during CPB is significantly lower in the normothermic group. We see no significant difference in the urinary output during CPB between the both groups. There is the tendency that blood loss as long as 24 hours since the end of the operation is smaller in the normothermic group. There is no significant difference between the both groups at the time when serum levels of creatinine, GOT, GPT and platelet counts are compared on the preoperative day and on the first, second postoperative day. As the above results, normothermic CPB is surely acknowledged as a safe and effective approach.
