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1、烏司他丁對體外循環(huán)中內(nèi)皮細胞的保護作用作者:姜曉芬,池勝英,金烈烈,孫成超,繆劍霞【關(guān)鍵詞】烏司他丁摘要:目的評價烏司他丁對體外循環(huán)(CPB)中內(nèi)皮細胞的保護作用。方法 擇期21例先心病心內(nèi)畸形矯治術(shù)患者,隨機分成對照組(A組,n=7);抑肽酶組(B組,n=7),給予抑肽酶500萬U,CPB前給予1/2量,余加入預充液;烏司他丁組(C組,n=7),給予烏司他丁2萬U/kg,1/3量用于CPB前,1/3加入預充液,另1/3復溫時給予。于麻醉后CPB前(T1)、CPB30min(T2)、停CPB(T3)、停CPB后3h(T4)、24h(T5)、72h(T
2、6)采集靜脈血,觀察患者血漿中血管性假血友病因子(vonWillebrandFactor,vWF)和內(nèi)皮素-1在該過程中的變化。結(jié)果vWF三組變化趨勢一致,T2已開始上升,與T1相比,對照組有非常顯著性差異(P<0.01),抑肽酶組與烏司他丁組有顯著性差異(P<0.05);T3、T4、T5、T6與T1相比,三組都有非常顯著性差異(P<0.01)。B組與C組上升幅度較小些,T2與T3兩時間點,A組與B組、C組比較差異有顯著性(P<0.01與P<0.05)。CPB時ET-1有增高趨勢,A組T2已明顯上升,CPB后3h達高峰,
3、以后有下降趨勢,但CPB后72h仍高于CPB前(P<0.05)。B組與C組ET-1總體無增高趨勢。結(jié)論CPB可導致血管內(nèi)皮細胞的廣泛激活/損傷,CPB導致的某些繼發(fā)因素使此損傷持續(xù)數(shù)天;烏司他丁對CPB中內(nèi)皮細胞有一定的保護作用?! £P(guān)鍵詞:體外循環(huán);烏司他??;內(nèi)皮;血管性假血友病因子;內(nèi)皮素-1 EffectsofUlinastatinonVascularEndothelialCellsDuringCardiopulmonaryBypassinPatientsUndergoingOpenHeartSurgery Abstract:OBJE
4、CTIVEToinvestigatetheeffectsofulinastatinonvascularendothelialcellsinpatientsundergoingopenheartsurgerywithcardiopulmonarybypass(CPB).METHODSTwenty-onepatientswithcardiacfunctionclassI~IIschedualedforcongenitalheartdiseasewererandomlydividedintothreegroups:controlgroup(groupA,n
5、=7);aprotiningroup(groupB,n=7)),2500000unitaprotininweregivenintravenouslybeforeCPBandsameamountofaprotininaddedintotheprimingsolution;ulinastatingroup(groupc,n=7),totalof20000unit/kgulinastatinweregivenintravenouslybeforeCPB,theprimingsolutionandduringrewarm.Bloodsampleswereta
6、kenbeforeCPB(T1),30minfollowingCPB(T2),immediatelyafterdiscontinuingbypass(T3),3haftertheterminationofCPB(T4),24h(T5)and72h(T6)respectively,fordeterminationofvonWillebrandFactor(vWF)and5endothelin-1(ET-1).RESULTS ThelevelofvWFsignificantlyelevatedduringCPBandafterCPBinallgroups
7、.ThelevelsofvWFwereloweratT2andT3ingroupBandgroupC(P<0.01orP<0.05).TheplasmalevelofET-1increasedsignificantlyduringandafterCPBingroupA(P<0.01),reachedtoitstopto3hafterdiscontinuingbypass,anddidnotreturntonomal72haftertheterminationofCPB(P<0.05).WhileingroupBandgroup
8、CtheconcentrationofplasmaET-1didnotvariedsignificantly