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右美托咪定与咪达唑仑对老年TURP患者术后早期认知功能影响的比较 被引量:22

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摘要 目的探讨右美托咪定与咪达唑仑镇静对老年经尿道前列腺电切术(TURP)患者术后早期认知功能的影响。方法选择拟行TURP的老年患者60例,随机分为右美托咪定组和咪达唑仑组各30例。两组患者均接受腰硬联合麻醉。右美托咪定组患者于手术开始前10 min缓慢泵注右美托咪定0.5μg·kg-1负荷剂量,并以起始剂量0.2μg·kg-1·h-1泵注维持,泵注速度每次增减0.1μg·kg-1·h-1以维持躁动-镇静评分(RASS)-2分。咪达唑仑组给予咪达唑仑0.04 mg·kg-1负荷剂量,并以0.02 mg·kg-1·h-1注射泵维持,每次增减0.01 mg·kg-1·h-1。维持Ramsay IV镇静状态。观察并记录镇静评分,生命体征变化及术前、术后6 h、术后24 h、术后5 d各时间点的简易精神状态量表(MMSE)评分,并在相应时间点采集静脉血检测血清S100β。结果术后6 h,右美托咪定组和咪达唑仑组MMSE评分均较术前明显下降(P<0.01),其中咪达唑仑组较右美托咪定组分值低(P<0.05)。术后24 h咪达唑仑组分值仍低于术前水平(P<0.05),而右美托咪定组与术前水平差异无统计学意义(P>0.05)。术后5 d两组MMSE评分比较差异无统计学意义(P>0.05)。术后6 h两组血清中S100β较术前表达明显增高(P<0.05)。在术后24 h咪达唑仑组和右美托咪定组之间S100β表达差异有统计学意义(P<0.05)。结论右美托咪定和咪达唑仑可引起短暂认知功能障碍。在达到相同镇静状态下,右美托咪定对认知功能影响相对较轻,并可抑制应激反应,生命体征更平稳。对老年患者镇静右美托咪定优于咪达唑仑。
出处 《医药导报》 CAS 北大核心 2014年第6期755-757,共3页 Herald of Medicine
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