清醒或七氟醚麻醉下瑞芬太尼靶控输注对听觉诱发电位指数的影响

被引:9
作者
焦静
黄绍强
机构
[1] 复旦大学附属妇产科医院麻醉科
关键词
瑞芬太尼; 听觉诱发电位指数; 清醒; 七氟醚; 靶控输注;
D O I
暂无
中图分类号
R614 [麻醉学];
学科分类号
100217 [麻醉学];
摘要
目的:观察清醒状态及七氟醚麻醉下瑞芬太尼靶控输注(TCI)对听觉诱发电位指数(AAI)的影响。方法:28例择期全麻手术病例,根据瑞芬太尼靶控效应室浓度(CeREM)设定的不同均分为A组与B组。记录用药前安静时(T1)、CeREM达到2ng·mL-15min后(A组T2)或4ng·mL-15min后(B组T2)的AAI、心率(HR)、平均动脉压(MAP)、动脉血氧饱和度(SpO2)、呼气末二氧化碳浓度(PetCO2)值;然后以瑞芬太尼、丙泊酚、维库溴胺麻醉诱导,气管插管后停瑞芬太尼改吸七氟醚,呼气末七氟醚浓度达到1.4%20min后(T3)联合瑞芬太尼TCI,记录CeREM达到2ng·mL-15min后(A组T4)或4ng·mL-15min后(B组T4)的AAI值。结果:T2时所有患者都保持清醒,AAI不随CeREM的增加而改变,HR、MAP的变化也不明显,但SpO2在B组T2时明显下降(P<0.05),PetCO2在两组均升高,且B组比A组升高更显著(P<0.05);七氟醚麻醉下T4时两组AAI值均明显降低(P<0.05),且B组比A组降低更显著(P<0.05)。HR和MAP也都明显下降(P<0.05),HR值B组比A组降低更显著(P<0.05),而MAP两组间差异无显著性。结论:单纯瑞芬太尼TCI对AAI无明显影响,即使增加靶浓度至呼吸受到明显抑制的程度,AAI也不会降低;而七氟醚麻醉时,联合瑞芬太尼TCI可引起AAI明显下降,降低的程度与CeREM大小有关。
引用
收藏
页码:437 / 439
页数:3
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