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【题目】围手术期使用右美托咪定预防成人非心脏手术术后谵妄:系统性综述和荟萃分析
【通讯作者】刘敬臣,广西医科大学第一附属医院麻醉科
【摘要】研究目的:评价围术期应用右美托咪定预防成人非心脏手术后谵妄的效果。设计: 随机对照试验(RCT)的系统性综述和荟萃分析。干预:围术期应用右美托咪定预防成人非心脏手术后谵妄。测量指标:术后谵妄(POD)发生率。方法:从研究开始到2021年3月4日,在Pubmed、Embase和Cochrane中心注册数据库中检索所有可用的评估右美托咪定对行非心脏手术成人术后谵妄作用的随机对照试验。对二分类数据计算95%CI的风险比(RR)。对连续型数据计算标准均数差(SMD)。用第二版Cochrane偏倚风险工具评估RCT的偏倚风险,采用推荐评估、发展和评价分级(GRADE)方法评估主要结果的可信度。结果:包括4015例患者的meta分析(DEX组2050例;安慰剂组:1965例)在内的13项研究显示:与对照组相比,DEX显著降低了成人非心脏手术后POD的发生率(RR: 0.60;95%CI: 0.46 ~ 0.77, P = 0.0001, I 2= 55%,GRADE=中)。平均年龄≥65岁组与平均年龄<65岁组的亚组分析有统计学差异。与对照组相比,术后住院时间(SMD: -0.36;95%CI: -0.80 ~ 0.07, P = 0.1, I 2= 97%, GRADE=低)和全因死亡率(RR:0.57;95%CI: 0.25 ~ 1.28, P < 0.17, I 2= 0%,GRADE=中)。Meta分析显示,与安慰剂组相比,右美托咪定会导致显著术中心动过缓(RR: 1.39;95%CI: 1.14 ~ 1.69, P = 0.0009, I 2= 0%,GRADE=高),以及术中低血压(RR: 1.25;95%CI: 1.11 ~ 1.42, P = 0.0004, I 2= 0%,GRADE=高)。结论:这项系统性综述和荟萃分析表明,围手术期使用右美托咪定可以显著降低65岁以上患者非心脏手术后POD的发生率。然而,没有明确的证据表明围术期应用右美托咪定能降低65岁以下患者非心脏手术后POD的发生率。此外,围术期应用右美托咪定会增加心动过缓和低血压的发生风险。
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