Lancet:大手术麻醉程度与1年死亡风险

2019-10-21 MedSci MedSci原创

在大手术后并发症风险增加的患者中,轻度全麻人群的1年死亡率不高于深度全麻

近日研究人员开展随机对照研究,比较接受大手术老年患者浅麻醉或深麻醉对全因1年死亡率的影响。

年龄在60岁以上,患有严重共病,手术时间预计超过2小时,预计住院时间至少为2天患者参与研究,随机接受轻度全身麻醉(BIS 50)或深度全身麻醉(BIS 35)。研究的主要结果是1年全因死亡率。

6644名患者,其中BIS 50组3316人,BIS 35组3328人,BIS 50组平均BIS 47.2,BIS 35组平均BIS 38.8。BIS 50组平均动脉压高3.5mmHg,挥发性麻醉剂的使用最低浓度低0.26(30%)。BIS 50组1年死亡率为6.5%,BIS 35组为7.2%。组间3级以及4级不良事件差异不显著,最常见的不良事件为感染血管疾病、心脏疾病和肿瘤。

在大手术后并发症风险增加的患者中,轻度全麻人群的1年死亡率不高于深度全麻。

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