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研究观察年龄对潘库溴铵药代动力学的影响。选择24例施择期整形外科手术的患者,根据年龄分成三组:1组为5例婴幼儿,年龄0.75~2.95岁;2组为13例儿童,年龄4~14岁;3组为6例成人,年龄16~27岁。静注潘库溴铵100μg/kg后用改良荧光法测定其血浓度。潘库溴铵的体内过程能用二室开放模型完整描述,年龄愈小,分布容积愈大,血浆清除率愈高,潘库溴铵的血药浓度愈低。V1(中央室分布容积)、V2(周边室分布容积)、Vdss(稳态分布容积)、Cl(血浆清除率)和AUC(曲线下面积)在三组间有明显差别。1组的T1/2β和MRT明显比2、3组长,但T1/2α和K21在三组间无明显差别。
The effect of observed age on the pharmacokinetics of pancuronium was investigated. Twenty-four patients undergoing orthopedic surgery were divided into three groups according to age: group 1 was 5 infants and children aged 0.75-2.95 years; group 2 was 13 children aged 4-14 years; group 3 6 adults, aged 16 to 27 years old. After intravenous injection of pancuronium 100μg / kg, the blood concentration was measured by modified fluorescence method. The in vivo process of pancuronium can be completely described by a two-compartment open model. The smaller the age, the larger the volume of distribution and the higher the plasma clearance rate, the lower the plasma concentration of pancuronium. V1 (central compartment volume), V2 (peripheral compartment volume), Vdss (steady state volume of distribution), Cl (plasma clearance), and AUC (area under the curve) were significantly different among the three groups. T1 / 2β and MRT in group 1 were significantly longer than those in group 2 and 3, but T1 / 2α and K21 had no significant difference among the three groups.