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静脉输注瑞芬太尼对大鼠术后机械性痛阈的影响 被引量:5

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摘要 目的:观察静脉输注瑞芬太尼后对大鼠术后机械性痛阈的影响。方法:健康雄性SD大鼠16只,随机分为对照组(C组)和瑞芬太尼组(R组),均行颈静脉置管和右足切开。C组右足切口后静脉输注生理盐水1.5mL/h,R组持续输注瑞芬太尼1μg/(min·kg),输注4h,于置管前、置管后及停药后2、24、48、72h(T0~T5)时点测定左、右足机械性痛阈。结果:颈静脉置管前后机械痛阈无统计学差异(P>0.05)。R组大鼠右足机械痛阈在T2时点较T1降低33%(P<0.001),T3~T5时点逐渐升高,均低于T1水平,且T2~T5时点机械性痛阈均明显低于C组相应时间点。C组右足机械痛阈在T2时点明显低于T1(P<0.01),T5时点恢复T1水平。C组左足机械痛阈各时点无统计学差异。R组左足机械痛阈在T2时点低于术前水平,且低于C组(P<0.01)。结论:本实验表明静脉持续输注瑞芬太尼可显著降低大鼠切口痛机械性痛阈值,增加术后疼痛敏感性,延长术后疼痛的时间。
出处 《实用医学杂志》 CAS 北大核心 2010年第7期1134-1136,共3页 The Journal of Practical Medicine
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同被引文献49

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