Lancet Neurol:脑微出血患者抗血小板治疗有益还是有害?

2019-08-12 杨中华 脑血管病及重症文献导读

在 RESTART 试验中,脑出血发病前正在抗栓治疗的患者,发生脑出血后开始抗血小板治疗可能能够降低复发性症状性脑出血的风险(vs 未抗血小板治疗)。脑出血和脑小血管病(比如脑微出血)影像学特征与更高的脑出血复发风险有关。

在 RESTART 试验中,脑出血发病前正在抗栓治疗的患者,发生脑出血后开始抗血小板治疗可能能够降低复发性症状性脑出血的风险(vs 未抗血小板治疗)。脑出血和脑小血管病(比如脑微出血)影像学特征与更高的脑出血复发风险有关。

2019年7月来自英国的Rustam Al-Shahi Salman等在 Lancet Neurology 上公布了RESTART 试验亚组分析的研究结果,探讨影像学特征是否能够改变抗血小板治疗的疗效。

RESTART 是一项前瞻性、随机、开放标签、盲法终点、平行组的试验,纳入的患者为脑出血发病时正在服用抗栓治疗的患者,比较了随机后开始抗血小板治疗和避免抗血小板治疗的症状性脑出血复发的风险。

共登记了537例患者,其中525例为脑出血:254例患者进行了脑 MRI 检查(其中122例分配到开始抗血小板治疗组,132例分配到避免抗血小板治疗组)。

在存在脑微出血(2 或更多) vs 不存在脑微出血(0 或 1)(adjusted HR 0·30 [95% CI 0·08–1·13] vs 0·77 [0·13–4·61]; Pinteraction=0·41)、脑微出血数量0-1 vs 2-4 vs 5 或更多(HR 0·77 [0·13–4·62] vs 0·32 [0·03–3·66] vs 0·33 [0·07–1·60]; Pinteraction=0·75)、脑微出血局限在脑叶 vs 其他部位(HR 0·52 [0·004–6·79] vs 0·37 [0·09–1·28]; Pinteraction=0·85)的主要亚组分析中,抗血小板治疗对复发性脑出血的风险未见到临床或统计学意义。在所有探索性亚组分析中,抗血小板治疗的作用无异质性(all Pinteraction>0·05)。



最终作者认为对于存在脑微出血的患者,该研究排除了抗血小板治疗对脑出血复发的所有有害作用,仅发现非常轻微的危害(Our findings exclude all but a very modest harmful effect of antiplatelet therapy on recurrent intracerebral haemorrhage in the presence of cerebral microbleeds)。需要随机对照试验进一步探讨这个问题。

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    2020-02-27 yinhl1978
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    2020-02-23 howi
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    2019-08-17 Midas

    学习了

    0

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