JACC:预防冠状动脉旁路移植术早期闭塞,利伐沙班、阿司匹林还是二者联用?

2019-02-22 常路 环球医学

近期进行冠状动脉旁路移植术(CABG)的患者处于早期移植物失败风险,与心肌梗死和死亡风险相关。在COMPASS(使用抗凝策略患者的心血管结局)研究中,与阿司匹林100mg每天一次相比,利伐沙班2.5mg每天两次+阿司匹林100mg每天一次,可降低心血管死亡、卒中或心肌梗死等原发性主要不良心血管事件(MACE)复合结局。仅利伐沙班5mg每天两次不会显著降低MACE。2019年1月,发表在《J Am

近期进行冠状动脉旁路移植术(CABG)的患者处于早期移植物失败风险,与心肌梗死和死亡风险相关。在COMPASS(使用抗凝策略患者的血管结局)研究中,与阿司匹林100mg每天一次相比,利伐沙班2.5mg每天两次+阿司匹林100mg每天一次,可降低血管死亡、卒中心肌梗死等原发性主要不良心血管事件(MACE)复合结局。仅利伐沙班5mg每天两次不会显著降低MACE。2019年1月,发表在《J Am Coll Cardiol》的一项研究调查了利伐沙班、阿司匹林或二者联用预防冠状动脉旁路移植术早期闭塞的疗效。

目的:这项预先计划的子研究旨在确定,COMPASS治疗是否比仅阿司匹林在预防冠状动脉旁路移植术后移植物失败和MACE上更有效。

方法:本子研究将COMPASS研究中冠状动脉旁路移植术后4~14天的1448名患者,随机分配到利伐沙班+阿司匹林、仅利伐沙班或仅阿司匹林的组中。首要结局指标为移植物失败,其通过术后1年计算机断层扫描血管造影确诊。

结果:与仅阿司匹林相比,利伐沙班+阿司匹林和仅利伐沙班不会降低移植物失败率(联合vs阿司匹林:113(9.1%)vs 91(8.0%)例失败移植物;OR,1.13;95% CI,0.82~1.57;P=0.45;仅利伐沙班vs阿司匹林:92(7.8%)vs 92(8.0%)例失败移植物;OR,0.95;95% CI,0.67~1.33;P=0.75)。与阿司匹林相比,联合与较低的MACE相关(12(2.4%)vs 16(3.5%);HR,0.69;95% CI,0.33~1.47;P=0.34),而仅利伐沙班并非如此(16(3.3%)vs 16(3.5%);HR,0.99;95% CI,0.50~1.99;P=0.98)。随机分组30天内,无致命性出血或填塞发生。

结论:在更大型COMPASS研究中观察到的一样,与仅阿司匹林相比,利伐沙班2.5mg每天两次+阿司匹林或仅利伐沙班5mg每天两次,不会降低近期进行冠状动脉旁路移植术患者的移植物失败,但是利伐沙班2.5mg每天两次+阿司匹林与MACE降低相关。

原始出处:

Lamy A, Eikelboom J, Sheth T, et.al. Rivaroxaban, Aspirin, or Both to Prevent Early Coronary Bypass Graft Occlusion: The COMPASS-CABG Study. J Am Coll Cardiol. 2019 Jan 22;73(2):121-130. doi: 10.1016/j.jacc.2018.10.048.

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    2019-07-17 hbwxf
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    2019-07-02 cy0324
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