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ID:15116390
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页数:10页
时间:2018-08-01
《不同剂量的丙泊酚对老年患者潜伏期听觉诱发电位及应激反应的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、不同剂量的丙泊酚对老年患者潜伏期听觉诱发电位及应激反应的影响作者:马丽萍,朱立宏,陈学新,孟尽海【摘要】 目的观察不同剂量丙泊酚对老年患者中潜伏期听觉诱发电位(MLAEP)及应激反应的影响。方法选择择期行上腹部手术的老年患者60例,年龄60~81岁,ASAⅠ~Ⅱ级,心功能l~2级。无内分泌疾患及听力障碍。随机分为3组,每组20例,A组为术中持续泵注丙泊酚4mg/(kg·h),B组泵注丙泊酚6mg/(kg·h),C组泵注丙泊酚8mg/(kg·h)。分别记录入室后(T0)、麻醉诱导后3min(T1)、插管后1min(T2)、切皮后2m
2、in(T3)、关腹后(T4)及拔管后(T5)各时间点的HR、MAP及MLAEP各波波幅及潜伏期。在上述各时间点观察血浆皮质醇(CORT)浓度的变化。结果三组患者给药后Pa、Nb的潜伏期延长,Pa/Na、Pa/Nb的波幅降低(P<0.05)。三组患者给药后Pa、Nb的潜伏期延长,Pa/Na、Pa/Nb的波幅降低(P<0.05)。组间比较:在T3、T4时刻,A组Pa、Nb比B、C两组潜伏期短,Pa/Na、Pa/Nb比B、C两组波幅长(P<0.05),B、C两组间差异无统计学意义(P>0.05)。在给药后T1时刻与T0比较CORT值降低,
3、在T4、T5时比T0升高,差异均有统计学意义(P<0.05);组间比较在T3、T4、T5时A与B、C比较CORT值均有统计学意义(P<0.05),而B、C之间比较差异均无统计学意义(P>0.05)。结论术中持续泵注丙泊酚6mg/(kg·h)可使老年患者达到足够的麻醉深度,并可抑制应激反应,各指标变化相对平稳。10【关键词】丙泊酚;潜伏期听觉诱发电位;应激反应;麻醉 Abstract:ObjectiveToexploretheeffectsofdifferentdosesofpropofolonthemidlatencyaudito
4、ryevokedpotentialsandstressinelderlypatients.MethodsSixtyelderlypatients(ASAⅠ-Ⅱ,aged60-81yearsold,cardiacfunctionⅠ-Ⅱ,andwithoutendocrinedisordersandhearingimpairment)scheduledforselectiveupperabdominalsurgerywithgeneralanesthesiawererandomlydividedintothreegroups,eachw
5、ith20cases.GroupAwas,continuouslypump-infusedofpropofol4mg/(kg·h),groupBofpropofol6mg/(kg·h),andgroupCofpropofol8mg/(kg·h).HR,MAP.ThewaveamplitudeandlatencyofMLAEPwererecordedwhenpatientsenteredtheoperatingroom(T0),3minafterinductionofanesthesia(T1),1minafterintubation
6、(T2),2minafterskinincision(T3),afterabdominalCommissioner(T4),andafterextubation(T5).Meanwhile,3mlbloodsampleswerecollectedfromtherightinternaljugularveinatalltimepoints,andplasma'sCORTconcentrationsweredetected.ResultsMapatT1,T2,T3,T4wereslowlycomparedwithpreviousadmi
7、nistration(P<0.05),andatT3,T4,T5,groupAwashigherthangroupC.ComparedwithBandCwassignificant10differencesatT3,andatT4,AandBhadsignificantdifferences.Afteradministration,threegroupsofpatients'incubationperiodofPa,Nbwereextension,andthevolatilityofPa/Na,Pa/Nbweresignifican
8、tlyreduced(P<0.05).AtT3,T4moments,Pa,Nb,Na/PaandPa/NbhadstatisticalsignificantdifferencescomparedgroupAwithBandC(P<0.
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