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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科学家找到迄今对抗偏头疼更佳标靶

打记事起,53岁的Rosa Sundquist便会记录每个月头疼的天数。偏头疼始于她的孩提时代,并且随着年龄的增加,变得愈发严重。从2008年起,它使Sundquist每个月至少有15天无法正常生活。头痛欲裂的痛苦并不是Sundquist最坏的症状。恶心、呕吐以及对光线、声音和气味强烈的敏感度使她不可能工作——Sundquist曾是一名办公室经理,甚至经常无法离开位于美国弗吉尼亚州邓弗里斯的不