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Neurology:偏头痛可增加急性缺血性卒中患者的梗死体积

2016-01-24 phylis 译 MedSci原创

目的:偏头痛,特别是有先兆的偏头痛,是缺血性中风的危险因素。最近研究:与野生型小鼠相比,突变偏头痛小鼠,因偏头痛大脑过度兴奋增加缺血边缘带到梗死区,进而增加梗死的体积。研究者推测,急性卒中时,有偏头痛病史的患者梗死体积增加。方法:在这个回顾性病例对照研究中,研究者识别偏头痛史的参与者,在症状开始72h内,应用弥散加权和灌注加权MRI测量病灶体积,计算灌注加权成像(PWI)和弥散加权成像(DWI高信

目的:偏头痛,特别是有先兆的偏头痛,是缺血性中风的危险因素。最近研究:与野生型小鼠相比,突变偏头痛小鼠,因偏头痛大脑过度兴奋增加缺血边缘带到梗死区,进而增加梗死的体积。研究者推测,急性卒中时,有偏头痛病史的患者梗死体积会增加。

方法:在这个回顾性病例对照研究中,研究者识别偏头痛史的参与者,在症状开始72h内,应用弥散加权和灌注加权MRI测量病灶体积,计算灌注加权成像(PWI)和弥散加权成像(DWI高信号)的缺血组织的比例,比较不匹配模式患者(DWI病灶>83% PWI)的比例。

结果:偏头痛患者(n = 45),年轻者多见,女性患者多见,血管危险因素较少,颈动脉夹层较常见,但是与对照组相比没有差异(n = 27)。不匹配模式的偏头痛患者比例显著增加,表明灌注缺损到梗死的比率(偏头痛患者和对照组:22% vs 4%;P = 0.044)。先兆性偏头痛患者差异更为明显(36% vs 4%,P = 0.019)。校正进行症状开始到MRI检查的时间,偏头痛和无错配模式之间的相关性仍存在。

结论:这项病例对照研究支持假设:偏头痛史,特别是有先兆的偏头痛,与急性缺血性卒中无错配模式相关,这与在突变小鼠中的研究一致。

原文出处:

Mawet J, Eikermann-Haerter K, et al. Sensitivity to acute cerebral ischemic injury in migraineurs: A retrospective case-control study. Neurology. 2015 Dec 1.

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    2016-10-25 yinhl1978

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偏头痛的国际分类表现中并没有“肢体疼痛”,但是有研究表现儿童或成人偏头痛患者会经历肢体疼痛。该研究对27个家族成员进行了长达8年的研究。研究者将偏头痛相关的肢体疼痛定义为:在偏头痛、丛集性头痛、丛集性偏头痛发作期间,出现的无法用其他原因解释的断续的胳膊或腿部疼痛,当然也可能出现在没有头痛的时候。谱系分析显示儿童和成人偏头痛表现为肢体疼痛属于常染色体显性遗传模式。参与研究的27名家族成员表现为反复发

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