Stroke:新型口服抗凝剂患者缺血性卒中发生率较高

2018-10-15 xing.T MedSci原创

由于NOAC的使用与较高的缺血性卒中风险相关,并且出血风险低于使用华法林,因此可以得出结论,华法林患者的抗凝效果更强。观察到的效果可能是剂量控制的次要结局,或者是不同药物之间不同抗凝效果的结局。

使用新型口服抗凝剂(NOACs)来控制房颤的主要原因是假设它们在预防缺血性卒中方面与华法林同样有效,同时使患者出血风险较低。近日,卒中领域权威杂志Stroke上发表了一篇研究文章,为了验证这一假设,研究人员对服用NOACs的患者与服用华法林的患者的卒中相对发生率进行了一项回顾性研究。

研究人员使用比值比和Fisher精确检验对两组患者的相对卒中发生率进行了比较,所使用的NOAC数据集包含71365名服用NOACs和59546名服用华法林的患者。此外,将同时服用华法林和NOAC的7033名患者作为单独的队列进行分析。

与华法林相比,NOAC患者的缺血性卒中频率更高(比值比为1.29,P<0.001)。与华法林相比,服用NOAC的患者发生缺血性卒中的相对频率也更高(这些更高的频率在服用达比加群和阿哌沙班的患者中具有统计学意义,但在服用依替沙班和利伐沙班的患者中无统计学差异)。一般服用NOAC的患者颅内出血和非创伤性出血的发生率较低,与已发表的文献一致。将服用NOAC与服用华法林的患者人口统计学指标和临床特征进行比较,并未发现NOAC患者的卒中风险显著增高; 事实上,对于缺血性卒中,服用NOAC的患者风险往往较低。

由于NOAC的使用与较高的缺血性卒中风险相关,并且出血风险低于使用华法林,因此可以得出结论,华法林患者的抗凝效果更强。观察到的效果可能是剂量控制的次要结局,或者是不同药物之间不同抗凝效果的结局。

原始出处:

Max Shpak,et al. Higher Incidence of Ischemic Stroke in Patients Taking Novel Oral Anticoagulants.Stroke. 2018. https://www.ahajournals.org/doi/10.1161/STROKEAHA.118.022636

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    2018-10-15 健健

    卒中虽然是临床上常见病,溶栓,取栓等血管内治疗也很成熟,但是仍然有很多未知问题有待认知!

    0

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    2018-10-15 医者仁心5538

    学习了

    0

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