氯胺酮减轻瑞芬太尼所致术后急性阿片类耐受

被引:12
作者
薛昀
吴新民
机构
[1] 北京大学第一医院麻醉科
关键词
耐受; 瑞芬太尼; 氯胺酮;
D O I
暂无
中图分类号
R96 [药理学];
学科分类号
100602 ; 100706 ;
摘要
目的:观察小剂量NMDA受体拮抗剂氯胺酮是否可以抑制持续输注瑞芬太尼后引起的急性阿片类药物耐受。方法:51名单侧肾脏切除病人,20~65岁,ASA分级I~II级,随机被分为3组:对照组(C组)术中仅用吸入麻醉;瑞芬太尼组(R组)术中持续靶位输注靶浓度4μg/L的瑞芬太尼;氯胺酮组(K组)术中持续靶位输注靶浓度4μg/L的瑞芬太尼,同时诱导后给予氯胺酮0.5mg/Kg,之后以0.25mg/Kg.小时持续输注。观察术后病人的疼痛评分、吗啡用量和副作用。结果:R组和K组病人苏醒和拔管时间显著短于C组(P<0.01)。术后15及30分钟时,R组病人疼痛评分显著高于C组(P<0.05),术后30分钟时K组病人疼痛评分显著低于R组(P<0.05),显著高于C组(P<0.05)。术后24小时内的吗啡用量,R组均显著高于C组(P<0.05),术后0~0.5小时内的吗啡用量,K组显著低于R组(P<0.05)。术后三组病人副作用无显著差异。结论:瑞芬太尼复合七氟烷+氧化亚氮麻醉术后会出现阿片类药物急性耐受。术中输注小剂量氯胺酮可以在一定程度上减轻阿片类药物急性耐受,且不增加术后的副作用。
引用
收藏
页码:330 / 333
页数:4
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