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임상연구 : Propofol-Alfentanil 마취 시 Ephedrine 투여에 따른 혈압과 심박수의 변화: 각성 환자에서의 변화와 비교
문성신 ( Seong Shin Moon ),손지선 ( Ji Seon Son ),최훈 ( Huhn Choe ),한영진 ( Young Jin Han ),이상귀 ( Sang Kyi Lee ) 대한마취과학회 2008 Korean Journal of Anesthesiology Vol.55 No.5
Background: Hypotension and bradycardia in the propofol and alfentanil anesthesia are common during induction and maintenance. Ephedrine has been used to attenuate hypotension and bradycardia in the propofol and alfentanil anesthesia. We designed this study to determine whether propofol and alfentanil anesthesia could affect the blood pressure and heart rate response to intravenous ephedrine when compared with the awake state. Methods: Forty patients of ASA physical status 1 or 2 were assigned to one of two groups (Awake vs Propofol-alfentanil [P-A] group). Each patients received ephedrine 0.15 mg/kg after assessment of baseline hemodynamic values. In the awake patients, ephedrine were administered after hemodynamic parameters are stabilized. If hemodynamic parameters are stabilized after intubation, ephedrine were administered in the propofol-alfentanil anesthesia patients. The changes in systolic/diastolic blood pressure (SBP/DBP), mean blood pressure (MBP), and heart rate (HR) were recorded every one minute for 10 minutes. Results: Ephedrine increased the heart rate significantly in Awake group but not in P-A group. In the P-A group, 3 min after the administration of ephedrine, MBP increased 25.3%. In Awake group, 2 min after the administration of ephedrine, MBP increased only 6.3%. Conclusions: We conclude that propofol and alfentanil anesthesia augments the BP response to intravenous ephedrine but not HR. (Korean J Anesthesiol 2008;55:560~4)