Stroke:大脑中动脉M2闭塞卒中患者的治疗方法效果比较

2021-03-15 MedSci原创 MedSci原创

中国是世界上卒中负担最重的国家之一。

中国是世界上卒中负担最重的国家之一。2018年,我国因卒中导致的死亡人数为157万人,占居民总死亡率的22.3%。急性缺血性卒中(AIS)约占全部脑卒中的87.0%,是导致成人死亡和残疾的主要原因。

其中,大脑中动脉(MCA)闭塞导致的AIS是急性前循环缺血性卒中的重要亚型,M1段与M2段闭塞性AIS发病率分别为8.5%与4%。与M1段相比,尽管M2段闭塞影响的脑区较小,但仍具有较高的致死率(27%)和致残率(57%),尤其是当闭塞发生在优势半球时。

对于M1段闭塞性AIS,血管内取栓治疗在快速重建血流及改善患者预后方面效果显著,已作为首选治疗被写入指南推荐。与M1段不同,M2段血管直径细、管壁薄、且走形迂曲,使得取栓治疗难度加大,并且增加了动脉破裂出血及管壁夹层等围手术期风险。此外,相对于M1段闭塞,M2段闭塞的缺血半暗区体积小,可能会降低血管内取栓治疗的获益。因此,M2闭塞的血管内治疗目前仍存在争议。

为此,来自瑞士伯尔尼大学医院脑血管中心的专家对轻微脑卒中和M2段闭塞患者不同治疗方法的效果进行了比较,结果发表在最新的《卒中》(Stroke)杂志上。

研究纳入了2005年1月至2020年1月期间伯尔尼卒中中心收治的符合静脉溶栓(IVT)条件的M2段急性闭塞患者,且国家卫生研究院卒中量表评分(NIHSS)≤5分。主要比较了仅IVT治疗与包括动脉溶栓和机械切除(MT)在内的血管内治疗(EVT)以及仅IVT与仅MT之间的结果。

共纳入169名符合条件的患者(38.5%为女性,中位年龄70.2岁)。其中,84名(49.7%)仅接受IVT,85名(50.3%)接受EVT(±IVT),后者包括39名(45.9%)仅接受MT治疗。总的来说,各组在性别、年龄、血管危险因素、事件原因或事件前独立性方面相似。

与仅IVT的患者相比,EVT(OR=0.96)或仅MT(OR=1.12)组主要结局(mRS=0-2)没有差异。但仅考虑2015年后治疗的患者,与仅IVT组相比,EVT的3个月mRS得分改善明显更好(P=0.032)。

研究人员同时提出,该卒中领域的随机对照试验需求尚未得到满足。未来,应开展包括影像学参数,以及标准结果量表(如mRS和NIHSS)等评估神经认知和生活质量的卒中相关试验。

综上,该研究表明,仅IVT与EVT(±IVT),以及仅IVT与MT在MCA闭塞和轻微神经功能缺损患者中的有效性相似。但当仅考虑2015年后治疗的患者,EVT可能会带来额外的益处。

 

参考文献:

Treatment and Outcome in Stroke Patients With Acute M2 Occlusion and Minor Neurological Deficits. https://doi.org/10.1161/STROKEAHA.120.031672Stroke. 2021;52:802–810

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    2021-03-15 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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    2021-03-15 CHANGE

    疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的

    0