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Stroke :脑中风,阿司匹林治疗失败,有哪些抗血栓方案?

2021-11-02 Freeman MedSci原创

这些发现强调了未来研究的必要性,以确定这种非常常见和复杂的临床情况的最佳管理策略。

在美国,超过40%的70岁以上的成年人服用阿司匹林进行血管疾病的初级预防,超过70%的有心血管疾病史的任何年龄的患者每天服用阿司匹林。

虽然阿司匹林常用于心血管疾病和中风的预防,但许多服用阿司匹林单一疗法的患者仍会出现缺血性中风(所谓的阿司匹林失效)。尽管经常考虑增加阿司匹林的剂量,增加第二种药物,或改用另一种抗血小板药物,但没有证据表明这些方法有什么优越性。

藉此, University of Texas Southwestern Medical Center的Jay B. Lusk等人,评估了急性缺血性卒中老年患者中阿司匹林失效的发生率,并描述了他们出院时为二级卒中预防而进行的抗栓治疗的处方模式。

他们使用美国心脏协会Get With The Guidelines Stroke Registry的数据来描述2012年10月至2017年12月期间美国1734家医院的缺血性卒中联邦医疗保险受益人的出院抗血栓治疗模式,这些受益人在卒中前服用阿司匹林,并活着出院。

在261名缺血性卒中幸存者中,有100 016人(38.2%)在卒中前服用阿司匹林单药治疗。其中,44.4%的患者在出院时仍服用阿司匹林单药治疗(20.9%为81毫克,18.2%为325毫克,5.3%为其他或未知剂量)。

接下来最常见的治疗选择是双重抗血小板治疗(24.6%),其次是氯吡格雷单药治疗(17.8%)。

其余13.2%的患者出院时使用阿司匹林/双嘧达莫、华法林或非维生素K拮抗剂的口服抗凝剂,同时使用或不使用抗血小板,或根本没有抗血栓治疗。

这个研究的重要意义在于发现:在接受阿司匹林预防治疗的缺血性卒中患者中,近一半的患者出院后接受阿司匹林单药治疗,没有改变抗血栓类药物,而另一半患者出院后接受氯吡格雷单药治疗、双重抗血小板治疗或其他不常用药物。

这些发现强调了未来研究的必要性,以确定这种非常常见和复杂的临床情况的最佳管理策略。


原文出处:
Lusk JB, Xu H, Peterson ED, et al. Antithrombotic Therapy for Stroke Prevention in Patients With Ischemic Stroke With Aspirin Treatment Failure. Stroke. Published online October 27, 2021:STROKEAHA.121.034622. doi:10.1161/STROKEAHA.121.034622

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    2021-11-03 gwc388
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    2021-11-03 lishuns

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