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《不同剂量右美托咪定防治腰硬联合麻醉后寒战的临床研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、·论著·不同剂量右美托咪定防治腰硬联合麻醉后寒战的临床研究轲俊峰(通辽市第二人民医院麻醉科,内蒙古通辽028000)中图分类号R969.4;R971.3文献标志码A文章编号1672—2124(2014)07—0582—03摘要目的:探讨右关托咪定防治腰硬联合麻醉后寒战反应的最小有效剂量。方法:选择经腰硬联合麻醉行下腹部及下肢手术的患者136例,随机分为对照组与3个剂量试验组,各试验组麻醉后分别泵注不同剂量的右美托咪定[0.2gg/kg(A组)、0.4pg/kg(B组)、0.6gg/kg(C组)],对照组静
2、脉泵注生理盐水。观察各组患者麻醉前、右美托咪定(或生理盐水)泵注后15min、30min、60min、术毕各时间点的体温、寒战反应发生率、Ramsay镇静评分及药物不良反应发生情况。结果:A、B、c组患者泵注右美托咪定后各时间点体温均低于麻醉前,即均处于低体温状态,与对照组比较差异无统计学意义(尸>0.05)。B、C组寒战程度较轻,寒战发生率显著低于对照组(尸<0.05);A组寒战程度及寒战发生率与对照组比较差异无统计学意义(P>0.05)。泵注右关托咪定后各时间点A组镇静Ramsay评分均显著高于泵注前
3、,其余各组Ramsay评分与泵注前比较差异无统计学意义(P>0.05);B、C组泵注右美托咪定后不同时间点Ramsay评分与对照组比较差异有统计学意义(P<0.05)。C组泵注右美托咪定后有3例出现口干、5例出现心率下降,其余各组均未见明显不良反应。结论:右关托咪定防治腰硬联合麻醉后寒战的最小有效剂量是0.4gg/kg,既可有效减轻寒战程度,降低寒战反应发生率,又不使患者过度镇静,无明显不良反应。关键词腰硬联合麻醉;右美托咪定;低体温;寒战;最低有效剂量DifferentDosesofDexmedetom
4、idineforPreventionofChillsinPatientsUndergoingCombinedSpinal·-epi-duralAnesthesiaKEJun.feng(Dept.ofAnesthesiology,TongliaoMunicipalSecondPeople’sHospital,InnerMongoliaTongliao028000,China)ABSTRACT0BJECTIVE:Toexploretheminimumeffectivedoseofdexmedetomidine
5、forpreventionofchillsinpatientsunder—goingcombinedspinal—epiduralanesthesia(CSEA).METHODS:Atotalof136patientsundergoingsurgeryoflowerabdomenorlowerlimbfollowingCSEAwererandomlyassignedtoreceivedexmedetomidinel0.2gg/kg(groupA),0.4pg/kg(groupB),0.6pg/kg(gro
6、upC)]orphysiologicalsaline(controlgroup)byvenouspumpinfusion.Patients’bodytemperature,incidenceofchillsreaction,Ramsaysedationscoreandincidenceofadversedrugreactionsbeforeanesthesia,15min,30minand60rainafterpump—inginfusionofdrugsandaftercompletionofsurge
7、rywererecorded.RESULTS:ThebodytemperatureingroupA,BandCatalltimepointsfollowinginfusionofdexmedetomidinewerealllowerthanbeforeanesthesia,indicatinghypothermia;however,nosig—nificantdiferenceswerenotedbetweenthethreetestgroupsandthecontrolgroup(P>O.05).The
8、chillsweremildingroupBandC.andtheincidenceratesofchillsingroupBandgroupCweresignificantlylowerthaninthecontrolgroup(P<0.05);howev—er.nosignificantdiferenceswerenotedbetweengroupAandthecontrolgroup(P>0.05).Ramsayseda
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