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舒芬太尼对老年患者诱导期丙泊酚抑制气管插管反应半数有效血浆浓度的影响

International Journal of Anesthesiology and Resuscitation(2012)

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Abstract
目的 探讨不同靶浓度的舒芬太尼复合丙泊酚靶控输注(targeted-controlled infusion,TCI)抑制气管插管反应的丙泊酚半数有效血浆浓度(the median effective plasma concentration,Cp50).方法 研究对象为94例择期全麻拟行气管插管手术患者,ASA Ⅰ~Ⅲ级,年龄在60岁~79岁.根据年龄段和舒芬太尼靶浓度的不同按随机数字表法分为4组,A组为60岁~69岁、0.2 μg/L;B组为60岁~69岁、0.3 μg/L;C组为70岁~79岁、0.2 μg/L;D组为70岁~79岁、0.3 μg/L.试验以效应室浓度TCI舒芬太尼,待舒芬太尼血浆浓度与效应室浓度平衡后,以血浆靶浓度TCI丙泊酚,意识消失后给予0.2 mg/kg的顺阿曲库铵,待丙泊酚的血浆浓度和效应室浓度平衡且静注顺阿曲库铵达3 min后行气管插管.丙泊酚的血浆靶浓度按序贯法确定.结果 A组患者有效抑制气管插管反应的丙泊酚的Cp50为3.60 mg/L,95%可信区间(confidence interval,CI)为3.44 mgl~3.76 mg/L;B组患者Cp50为2.03 mg/L,95%CI为1.88 mg/L~2.20 mg/L;C组患者Cp50为2.70 mg/L,95%CI为2.56 mg/L~2.84 mg/L;D组患者Cp50为1.97 mg/L,95%CI为1.81 mg/L~2.12 mg/L.结论 随着舒芬太尼的效应室靶浓度的增加以及年龄的增加,丙泊酚的Cp50明显降低.
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Key words
Propofol,Sufentanil,Targeted-controlled infusion,The median effective plasma concentration,Tracheal intubation,The elderly
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