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1、全凭静脉麻醉的镇静程度与血流动力学及应激反应指标的相关性研究作者:陈学新,马汉祥,熊利泽,孟尽海,王建珍,刘红,施伟忠【摘要】 目的:研究全凭静脉麻醉中镇静程度与血流动力学及应激反应指标之间的相关性.方法:选择ASAI~II级胃癌患者30例,行全凭静脉麻醉,监测脑电双频谱指数(BIS)、心率(HR)、血氧饱和度(SpO2),有创平均动脉压(MAP).时间点取值:入室平卧10min基础值(T1),诱导后气管插管前1min(T2),气管插管后3min(T3),手术切皮前1min(T4),切皮后3min(T5),麻醉诱导给
2、药后1h(T6),拔管前1min(T7),清醒时(T8),并抽取动脉血测定丙泊酚血药浓度、肾上腺素(E)、去甲肾上腺素(NE)和β内啡肽的含量.术中行麻醉深度控制(MAP±20%基础值和BIS值40~60).结果:麻醉后各指标较基础值明显降低(P<0.01),拔管前较基础值明显升高(P<0.01),大部分指标在清醒时较拔管前明显升高(P<0.01).血液浓度与BIS,MAP,HR,E,NE,β内啡肽的总相关系数分别为-0.929,-0.336,-0.197,-0.648,-0.815,-0.752
3、(P<0.01).BIS与MAP,E,NE,β内啡肽的总相关系数分别为0.424,0.409,0.650,0.479(P<0.01).当血压和HR进行控制(或只控制血压),得出BIS与E,NE和β内啡肽相关系数分别为0.347(0.334),0.572(0.571),0.362(0.36),P<0.01.结论:在麻醉深度监测中BIS不但可以反映患者的镇静程度而且可反映体内应激反应的程度.【关键词】麻醉;血流动力学;应激反应;全凭静脉麻醉【Abstract】AIM:Tostudythecorrela
4、tionsofdegreeofsedationwithhemodynamicsandstressreactionintotalintravenousanesthesia(TIVA).METHODS:ThirtyASAⅠ-Ⅱpatientswithstomachcancerunderwentbispectralindex(BIS)monitoring,measurementofheartrate(HR),meanarterialbloodpressure(MAP)andpulseoximetry(SpO2)at10min
5、afterenteringoperationroom(T1),1minbeforeintubation(T2),3minafterintubation(T3),1minbeforeincision(T4),3minafterincision(T5),1hafterinductionofanesthesia(T6),1minbeforeextubation(T7)andawaking(T8).BISwasmeasuredcontinuouslyduringthisperiodaswellasthroughoutthest
6、udyandwasrecordedatdifferenttimes.Plasmaconcentrationsofpropofol,epinephrine,norepinephrineandβendorphineweredeterminedatdifferenttimes.RESULTS:Allindexespostanesthesiawerelowersignificantlythanthebasevalues,andtheyat1minbeforeextubationwerehigheraswell.Almost
7、indexesatawakingwerehigherthanthoseat1minbeforeextubation.ThecorrelationsbetweenplasmapropofolconcentrationsandBIS,MAP,HR,epinephrine,norepinephrine,βendorphinewere-0.929,-0.336,-0.197,-0.648,-0.815,-0.752,respectively.The5correlationsbetweenBISandMAP,epinephri
8、ne,norepinephrine,βendorphinewere0.424,0.409,0.650,0.479,respectively.ThecorrelationsbetweenBISandepinephrine,norepinephrine,βendorphinewere0.347(0.334),0.572(0.571