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Ann Intern Med:有PCI病史患者进行非心脏手术:围手术期阿司匹林带来获益or危害?

2018-03-16 门鹏 环球医学网

发表在《Ann Intern Med》的一项由加拿大、美国、南非等国科学家进行的研究,考察了阿司匹林在既往有经皮冠状动脉介入治疗(PCI)史的正在进行非心脏手术患者中的使用情况。

发表在《Ann Intern Med》的一项由加拿大、美国、南非等国科学家进行的研究,考察了阿司匹林在既往有经皮冠状动脉介入治疗(PCI)史的正在进行非心脏手术患者中的使用情况。

背景:阿司匹林在既往有PCI治疗史的正在进行非心脏手术患者中的作用仍未确定。

目的:旨在评估围手术期阿司匹林在既往PCI患者中的风险和获益。

设计:多中心析因试验的非预先定义的亚组分析。2010~2013年进行计算机互联网的随机分组。患者、医生、数据收集员、结局裁定者对治疗分组设盲。

地点:23个国家的135个中心。

患者:具有或处于动脉粥样硬化疾病风险,正在进行非心脏手术的45岁或以上患者。排除标准为6周内放置裸金属支架,1年内放置药物洗脱支架,术前72小时内接受非研究阿司匹林。

干预:术前4小时内初始阿司匹林治疗(整体,4998例;亚组,234例)或安慰剂治疗(整体,5012例;亚组,236例),并在整个围手术期持续使用。470例亚组患者中,99.9%完成了随访。

测量:30天首要结局为死亡或非致命性心肌梗死,出血为次要结局。

结果:既往PCI患者中,阿司匹林会降低首要结局[绝对风险降低,5.5%(95% CI,0.4%~10.5%);风险比[HR],0.50(CI,0.26~0.95);P=0.036]和心肌梗死[绝对风险降低,5.9%(1.0%~10.8%);HR,0.44(CI,0.22~0.87);P=0.021]风险。既往PCI患者中,阿司匹林对严重和威胁生命的出血复合的影响不确定[绝对风险增加,1.3%(CI,-2.6%~5.2%)]。整体人群中,阿司匹林增加大出血风险[绝对风险增加,0.8%(CI,0.1%~1.6%);HR,1.22(1.01~1.48);P=0.50]。

局限性:非预先定义的亚组分析样本量小。

结论:围手术期使用阿司匹林更可能对既往PCI患者带来获益而非危害。

原始出处:
Graham MM, Sessler DI, Parlow JL, et al.Aspirin in Patients With Previous Percutaneous Coronary Intervention Undergoing Noncardiac Surgery.Ann Intern Med. 2018 Feb 20;168(4):237-244. doi: 10.7326/M17-2341. Epub 2018 Nov 14.

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