重复 NEJM:阿司匹林预防静脉血栓栓塞事件增添新证据

2018-03-03 杨中华 脑血管病及重症文献导读

深静脉血栓形成(DVT)和肺栓塞(PE)通称为静脉血栓栓塞(VTE)是全髋或全膝关节成形手术的公认并发症。围手术期抗凝治疗被证明能够降低手术后VTE相关死亡和并发症。出院后延长时间预防也能获益,特别是全髋关节成形术的患者。对于全髋关节置换术或全膝关节置换术的患者,当前指南推荐预防性抗凝持续最少14天,建议应该预防持续到手术后35天。因为有效性、安全性和使用方便,直接口服抗凝剂常被用于长时间抗凝的选


深静脉血栓形成(DVT)和肺栓塞(PE)通称为静脉血栓栓塞(VTE)是全髋或全膝关节成形手术的公认并发症。围手术期抗凝治疗被证明能够降低手术后VTE相关死亡和并发症。出院后延长时间预防也能获益,特别是全髋关节成形术的患者。对于全髋关节置换术或全膝关节置换术的患者,当前指南推荐预防性抗凝持续最少14天,建议应该预防持续到手术后35天。因为有效性、安全性和使用方便,直接口服抗凝剂常被用于长时间抗凝的选择药物。

阿司匹林是一种广泛使用的抗血小板药物。临床试验和meta分析皆显示阿司匹林能够有效预防手术后VTE,但是尚缺乏比较阿司匹林和直接口服抗凝剂的研究。

2018年2月来自加拿大的D.R. Anderson等在NEJM上公布了EPCAT II试验结果,目的在于探讨全髋关节置换术或全膝关节置换术术后经过短时间利伐沙班预防性抗凝的患者,阿司匹林和利伐沙班延长时间预防VTE的疗效和安全性。

该研究为多中心,双盲,RCT试验。纳入的患者为全髋关节置换术或全膝关节置换术的患者。所有患者手术后都给予为期5天的利伐沙班预防VTE(每天一次,10mg),随后随机给予继续利伐沙班或更改为阿司匹林(每天81mg),全膝关节置换术者持续使用9天,全髋关节置换术者30天。主要有效性终点为90天症状性VTE,主要安全性终点为出血并发症。

共纳入了3424例患者。阿司匹林组和利伐沙班组VTE发生率分别为0.64%和0.7%(差异, 0.06 %; 95% CI, ?0.55 to 0.66; P<0.001 for noninferiority and P = 0.84 for superiority))。两组安全性事件没有显著性差异。

最终作者认为对于全髋关节置换术或全膝关节置换术术后已经服用5天利伐沙班预防性抗凝治疗的患者,阿司匹林和利伐沙班延长时间预防症状性VTE的作用没有显著性差异。

译者注:2018 AHA急性缺血性卒中指南不再推荐抗凝预防VTE,认为阿司匹林可以作为预防VTE的方案,这条推荐和以前指南推荐意见相左。该研究为新指南提供了侧面的证据。

原始出处:

David R. Anderson,et al.Aspirin or Rivaroxaban for VTE Prophylaxis after Hip or Knee Arthroplasty.N Engl J Med. 2018 Feb 22;378(8):699-707. doi: 10.1056/NEJMoa1712746.

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    2018-04-09 xue8602
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    2018-03-04 1209e435m98(暂无昵称)

    学习了.谢谢分享

    0

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