Neurology:替格瑞洛和阿司匹林在急性缺血性中风或TIA30天显示出显著获益

2022-07-08 MedSci原创 MedSci原创

即对于轻中度缺血性卒中或高危TIA患者,在整个30天治疗期间,替格瑞洛-阿司匹林的缺血获益超过了大出血的风险。

2019年发表在lancet子刊上的SOCRATES试验表明,对于同侧动脉粥样硬化性狭窄引起的急性缺血性卒中或短暂性脑缺血发作,替格瑞洛在预防90 d卒中、心肌梗死或死亡风险方面优于阿司匹林。为了评价在THALES试验中,研究替格瑞洛与阿司匹林治疗急性轻中度缺血性卒中或高危TIA的短期时间过程效益和风险,近期neurology发表了研究结果。

在对THALES试验的探索性分析中,研究人员评估了30天治疗期间不同时间点的不可逆转的疗效和安全结果的累积发生率。疗效结果是主要的缺血事件,定义为缺血性中风或非出血性死亡的组合。安全结果是重大出血,定义为颅内出血和致命性出血。净临床影响被定义为这两个终点的组合。

结果共包括11016名患者(替格瑞洛-阿司匹林组5523人,阿司匹林组5493人),平均年龄为65岁,39%为女性。替格瑞洛减少的主要缺血事件发生在第一周(4.1% vs 5.3%;绝对风险降低1.15%,95% CI 0.36%-1.94%),并在整个30天治疗期间保持不变。第一周出现了大出血的增加,并在随后几周保持相对稳定(绝对风险增加≈0.3%)。累积分析显示,在第一周,净临床影响有利于替格瑞洛-阿司匹林(绝对风险降低0.97%,95%CI,0.17%-1.77%)双抗治疗,并在整个30天内保持不变。

在轻中度缺血性卒中或高危TIA患者中,替格瑞洛-阿司匹林的治疗效果从第一周就开始显现。在整个治疗期间,替格瑞洛-阿司匹林的缺血效益超过了大出血的风险,这可能支持在这些患者中使用替格瑞洛-阿司匹林的30天治疗。

证据分类 本研究提供了II级证据,即对于轻中度缺血性卒中或高危TIA患者,在整个30天治疗期间,替格瑞洛-阿司匹林的缺血获益超过了大出血的风险。

 

参考文献:

Time Course for Benefit and Risk of Ticagrelor and Aspirin in Acute Ischemic Stroke or Transient Ischemic Attack. Neurology Jul 2022, 99 (1) e46-e54; DOI: 10.1212/WNL.0000000000200355

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    2022-10-26 smlt2008
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    2023-05-29 yinhl1978
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