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ID:32228294
大小:1.33 MB
页数:44页
时间:2019-02-01
《脂肪乳剂逆转布比卡因心脏毒性的实验的研究》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、摘要目的:探讨脂肪乳剂逆转布比卡因心脏毒性的效果。方法:选择健康成年杂种犬18只,行戊巴比妥钠肌注麻醉、气管插管、机械通气、经股动脉直接测压、经股静脉置入漂浮导管后,以速度0.Smg/kg/min经静脉内输注盐酸布比卡因至实验犬平均动脉压下降为40mnd-lg建立布比卡因心脏毒性模型,均分为A组(n--9)和B组(n--9)。A组毒性模型一次性静脉推注4ml/kg20%脂肪乳剂,然后以0.5nWkg/h速度输注20%脂肪乳剂lO分钟进行复苏。B组毒性模型一次性给予4ml/kg生理盐水后,然后以速度0.Sml/kg/h输注生理盐水10分钟。持续监测平均动脉压
2、(MAP)、心率(HR)和心电图(ECG),利用漂浮导管于测量各相应时间点心输出量(CO)、中心静脉压(CVP)、肺毛细血管楔压(PCWP)并抽取各相应时间点动静脉血进行血气分析、电解质检测及测量布比卡因血药浓度。结果:(1)A、B两组实验犬体重、血流动力学指标基础值、建立布比卡因心脏毒性模型时各项血流动力学指标数值无统计学差异(P>o.05)。(2”组实验犬9只全部复苏成功,B组实验犬相继在复苏后10.O±1.8min内死亡(A、B两组之间组间比较p3、)出现不同程度的恢复(pO.05)。.结论:脂肪乳剂对布比卡因造成的心脏毒性有较好的逆转作用,可逆转并恢复布比卡因中毒造成的血流动力学影响。关键词:脂肪乳剂;布比卡因;心脏毒性AbstractSubjeetive:Tostudytheeffectoflipidemulsiononbupivacaine-inducedcardiovasculartoxicit4、yindogs.Methods:Eighteenmongreldogswereanaesthesiaedbypentobarbitalsodiumviaintramuscular,tracheacannulaandmechanicalventilationweredoneindogs.AfterdirectlymeasuringbloodpressurethroughartcriafemoralisandplacingSwan-Ganzcatheterviavenafemoralis,bupivacainewasadministeredat0.5mg/kg5、/minuntilmeanarterialbloodpressuredecreasedto40mmHginordertoraisethecardiovasculartoxicitymodelofbupivacaine.Then,thesedogsweredividedequallyintoAgroup(n----9)andBgroup(n----9)..IntheAgroup(n--9),anIVbolusofregular如idernulsion(4ml/kg)Wasgiven,followedbycontinuouslipidemulsioninfus6、ion(0.5ml/kg/minof20%如idemulsion)for10min.IntheBgroup(n=9),anIVbolusof4ml/kgsalineWasgiven,followedbYcontinuoussalineinfusion(0.5ml/kg/minofsaline)for10rain.MAP,ECGandliP.weremonitoredcontinuously.CO,CVPandPWCPweremeasuredbySwan-Ganzcatheterateverydefinedtimepoint.Bloodgasanalysis7、Wasdoneateverydefinedtimepo缸bydrawingarterialblood.DrawingVenOusbloodmeasuredblooddruglevelofbupivacaineandelec怕1矿eateverydefinedtimepoint.Results:(1)Therewasnostatisticdifferenceonbasicconditionsdogs,elementaryvalueofhaemodynarnicsandvalueofhaernodynamicsoftoxicitymodeldogsbetwee8、nAandBQ>o.05betweenAandB).(2)Inth
3、)出现不同程度的恢复(pO.05)。.结论:脂肪乳剂对布比卡因造成的心脏毒性有较好的逆转作用,可逆转并恢复布比卡因中毒造成的血流动力学影响。关键词:脂肪乳剂;布比卡因;心脏毒性AbstractSubjeetive:Tostudytheeffectoflipidemulsiononbupivacaine-inducedcardiovasculartoxicit
4、yindogs.Methods:Eighteenmongreldogswereanaesthesiaedbypentobarbitalsodiumviaintramuscular,tracheacannulaandmechanicalventilationweredoneindogs.AfterdirectlymeasuringbloodpressurethroughartcriafemoralisandplacingSwan-Ganzcatheterviavenafemoralis,bupivacainewasadministeredat0.5mg/kg
5、/minuntilmeanarterialbloodpressuredecreasedto40mmHginordertoraisethecardiovasculartoxicitymodelofbupivacaine.Then,thesedogsweredividedequallyintoAgroup(n----9)andBgroup(n----9)..IntheAgroup(n--9),anIVbolusofregular如idernulsion(4ml/kg)Wasgiven,followedbycontinuouslipidemulsioninfus
6、ion(0.5ml/kg/minof20%如idemulsion)for10min.IntheBgroup(n=9),anIVbolusof4ml/kgsalineWasgiven,followedbYcontinuoussalineinfusion(0.5ml/kg/minofsaline)for10rain.MAP,ECGandliP.weremonitoredcontinuously.CO,CVPandPWCPweremeasuredbySwan-Ganzcatheterateverydefinedtimepoint.Bloodgasanalysis
7、Wasdoneateverydefinedtimepo缸bydrawingarterialblood.DrawingVenOusbloodmeasuredblooddruglevelofbupivacaineandelec怕1矿eateverydefinedtimepoint.Results:(1)Therewasnostatisticdifferenceonbasicconditionsdogs,elementaryvalueofhaemodynarnicsandvalueofhaernodynamicsoftoxicitymodeldogsbetwee
8、nAandBQ>o.05betweenAandB).(2)Inth
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