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七氟醚和异氟醚对顺式阿曲库铵肌松效应的影响 被引量:23

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摘要 目的观察七氟醚和异氟醚对顺式阿曲库铵肌松效应的影响。方法30例择期行妇科腹腔镜手术的患者,ASAⅠ级,随机均分为七氟醚组(SEV组)和异氟醚组(ISO组)。麻醉诱导用咪唑安定、异丙酚、芬太尼,2%利多卡因3ml舌根部及咽喉部表面麻醉,3min后行气管插管。所有患者插管后均靶控输注3ng/ml瑞芬太尼(血浆靶控浓度),SEV组和ISO组分别吸入七氟醚和异氟醚维持麻醉,当呼气末浓度稳定为1.3MAC后继续维持40min,静脉注射总量为45μg/k的顺式阿曲库铵,用TOF GUARD(丹麦)加速度仪进行肌松监测。顺式阿曲库铵45μg/kg分为3等份分次静脉注射,记录每次注药(15μg/k)后的起效时间及最大阻滞效应。用累积剂量法建立两组患者的剂量反应曲线。在最后一次注药后记录:T1恢复到25%,50%,75%的时间(T125%,T1 50%,T1 75%);TOF比值(T4/T1)恢复到70%的时间(TOFR0.7)以及恢复指数(RI)。结果1、3MAC七氟醚和异氟醚麻醉下顺式阿曲库铵的ED50,ED95分别为21(17—25)μg/kg,39(31~62)μg/kg和24(19~28)μg/kg,44(36—68)μg/k,两组差异无显著性(P〉0.05);两组之间顺式阿曲库铵的起效时间、恢复至T1 75%,TOFR0.7及RI差异无显著性(P〉0.05)。SEV组顺式阿曲库铵的T1 25%,T1 50%较ISO组明显延长(P〈0.05)。结论1.3MAC七氟醚和异氟醚对顺式阿曲库铵量效关系的影响相似;但七氟醚对顺式阿曲库铵恢复至T1 25%、T1 50%的影响大于异氟醚。
出处 《广东医学》 CAS CSCD 北大核心 2008年第10期1682-1684,共3页 Guangdong Medical Journal
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