[Effect of amrinone infusion on temperature changes in elderly patients undergoing abdominal surgery]

We evaluated the effect of intravenous infusion of amrinone on the intraoperative changes of temperature. Twenty-six elderly patients scheduled for abdominal surgery were studied. Temperature was monitored at the rectum and the palm of the hand. Fourteen patients in the amrinone group received continuous infusion of amrinone from anesthetic induction until the end of operation, while twelve patients in the control group received the infusion of normal saline. Peripheral temperature was significantly higher in the amrinone group than in the control group. Difference between central and peripheral temperature was significantly smaller in the amrinone group compared to the control group. It is considered that infusion of amrinone is effective to maintain peripheral circulation and to keep the peripheral extremities warm in elderly patients undergoing abdominal surgery.