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不同年龄国人的吸入麻醉药血 气分配系数及决定因素 |
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周建新 刘进
摘要 目的:测定吸入麻醉药在不同年龄国人中的血/气分配系数(B/G),判断年龄是否影响B/G及确定影响B/G的血液成份。方法:100例从出生至84岁的国人按年龄分为10组,每组10例,男女各半。应用两次平衡法同时测定地氟醚、七氟醚、异氟醚、安氟醚和氟烷的B/G,并测定血浆白蛋白、球蛋白、甘油三酯和胆固醇浓度及血红细胞压积。结果:100例国人(22±25岁)的吸入麻醉药B/G分别为:地氟醚0.58±0.06;七氟醚0.69±0.06;异氟醚1.34±0.12;安氟醚1.99±0.20和氟烷2.44±0.24。5种麻醉药的B/G在不同年龄组间存在显著性差异(P<0.05)。随年龄每增大1岁,异氟醚、安氟醚和氟烷的B/G分别升高0.19%、0.23%和0.30%,呈直线相关。七氟醚B/G在新生儿组<1月以上各年龄组,而在1月以上各年龄组间无显著性差异。地氟醚B/G为新生儿<成年人≈老年人<儿童。地氟醚和七氟醚B/G与血浆胆固醇、甘油三酯和球蛋白浓度相关;异氟醚、安氟醚和氟烷B/G与血浆胆固醇和甘油三酯浓度相关。结论:年龄明显影响吸入麻醉药B/G,在各年龄组间新生儿的B/G最小;B/G受到血液中两种或以上成份的共同影响,其中胆固醇和甘油三酯对B/G的影响较大。 关键词 麻醉药,吸入 血/气分配系数 年龄
Effects of age and blood compents on the blood/gas partition coefficients of volatile anesthetics in Chinese Zhou Jianxin,Liu Jin.Department of Anesthesiology,Fuwai Hospital,Chinese Academy of Medical Sciences,Beijing 100037 Abstract Objective:To determine the blood/gas partition coefficients(B/G)of volatile anesthetics in Chinese.Method:One hundred Chinese were divided into ten groups by age (10 objects in each group,5 males and 5 females).B/G of desflurane,sevoflurane,enflurane,isoflurane and halothane were measured simultaneously in each object using twice equilibration method by gas chromatography.Hematocrit and blood albumin,globulin,triglyceride,and cholesterol concentrations were also measured in each object.Result:The mean B/G of desflurane,sevoflurane,enflurane,isoflurane,and halothane (22±25 years) were 0.58±0.06,0.69±0.06,1.99±0.20,1.34±0.12,and 2.44±0.24,respectively;and no significant differences were found between sexes(P>0.05).There were significant differences in B/G of the five anesthetics among different age groups(P<0.05).With the increase of age,B/G of isoflurane,enflurane and halothane increasedby 0.19%,0.23% and 0.30% per year,respectively.For sevoflurane,the B/G in newborns was significantly smaller than those in all other groups,but no significant [1] [2] [3] 下一页 上一个医学论文: 高位硬膜外麻醉对急性心肌梗塞患者游离脂肪酸的影响 下一个医学论文: 地氟醚在平衡麻醉中药代动力学特征的研究
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