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임상연구 : Remifentanil과 Porpofol을 사용한 마취유도 시 교류저항 심장도 검사를 이용한 혈역학적 변화의 측정
정순호 ( Soon Ho Cheong ),박대식 ( Tae Sik Park ),이상은 ( Sang Eun Lee ),김영환 ( Young Hwan Kim ),임세훈 ( Se Hun Lim ),이정한 ( Jeong Han Lee ),이근무 ( Kun Moo Lee ),최영균 ( Young Kyun Choe ),김영재 ( Young Jae Kim ),신치만 ( 대한마취과학회 2007 Korean Journal of Anesthesiology Vol.53 No.1
Background: Remifentanil-propofol combination is used to minimize the cardiovascular responses during anesthetic induction; however, it may generate side effects such as hypotension or bradycardia. The authors investigated the changes of stroke volume and cardiac output using impedance cardiography (ICG) when hypotension or bradycardia is generated during propofol-remifentanil anesthetic induction. Methods: Ninety ASA physical status class I patients who were scheduled to undergo elective ambulatory surgery were randomly assigned to one of three groups (n = 30 each). Normal saline (Group S), remifentanil 0.25μg/kg/min (Group R0.25), or remifentanil 0.5μg/kg/min (Group R0.5) was infused intravenously. Propofol was slowly administered two minutes after the administration of remifentanil or normal saline. Heart rate, mean arterial pressure, cardiac output and stroke volume were measured at preinduction (baseline), preintubation and postintubation. Results: Mean arterial pressure in Group R0.5 at preintubation decreased compared to that of the baseline, however, the stroke volume index was sustained. The stroke volume index at postintubation decreased proportionally as heart rate increased in heart rate in all groups, and then cardiac index was preserved. Conclusions: Hypotension was generated during induction of anesthesia when remifentanil 0.5μg/kg/min and propofol 1.0 mg/kg were used, however, the stroke volume index was sustained. (Korean J Anesthesiol 2007; 53: 42~7)