Neurology:核磁共振确定的脑颞叶癫痫症亚型的癫痫发作持续时间和扩散动力学

2022-06-26 Naomi MedSci原创

近日,一项发表在Neurology上的研究报道了一项回顾性队列研究,以调查特定三个组之间的电临床差异。研究证实,癫痫发作的电临床特征不同于核磁共振和病变性癫痫。

MR 和 pet 成像能够根据结构病理学界定脑颞叶癫痫症的亚组。很少有研究根据影像学结果检查电临床癫痫发作传播模式的变化。近日,一项发表在Neurology上的研究报道了一项回顾性队列研究,以调查三个特定组之间的电临床差异: MRI-阴性-PET-阳性组(MRI 阴性)、颞叶病变组(病变)和单侧海马硬化症组(hs-tle)。

 从2005年至2019年奥斯汀综合性癫痫项目的回顾性数据库中确定了有癫痫发作录像头皮脑电图记录的电临床诊断患者。根据影像学检查结果,使用 MRI 和 fdg-pet 将该队列进一步选入三个确定的组。测量临床和电图癫痫发作进展的时间,考虑发作时间、同侧大叶扩散、对侧扩散和终止。使用包含人口统计学和临床协变量的线性混合模型比较各组间的持续时间。

 

  • 共纳入105例患者(137例癫痫发作),其中36例 MRI 阴性(54例癫痫发作),36例病变(18例外侧与16例内侧病变; 44例癫痫发作)和33例 hs-tle (39次癫痫发作)。
  • 癫痫发作持续时间在核磁共振和病变之间相似(平均75.9s vs 71.7s,p = 0.91)。
  • 进一步将病灶分为内侧颞叶和外侧颞叶,也未发现时间差异。
  • 然而,与 MRI 阴性(p < 0.001)和病变组Tle (p < 0.001)相比,hs-tle 组的总癫痫发作持续时间(114秒)更长。
  • 电图扩散的进展也反映了这种模式,其中颞外区受累,然后对侧半球各自在 hs-tle 中的时间明显延长。

在癫痫发作的持续时间和电图扩散的时间上,核磁共振显示出与病变部位相似的电图特征,无论是内侧还是外侧。两者在电图上都与传播较慢的癫痫不同,表明不同的致痫网络或癫痫发作抑制机制的参与。

本研究提供了第二类证据,证明癫痫发作的电临床特征不同于核磁共振和病变性癫痫。

文献来源:Wei Zhang VJ, Jackson G, Fitt G, Perchyonok Y, Vaughan DN. Seizure Duration and Spread Dynamics in MRI-Defined Subtypes of Temporal Lobe Epilepsy [published online ahead of print, 2022 May 4]. Neurology. 2022;10.1212/WNL.0000000000200354. doi:10.1212/WNL.0000000000200354

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    2022-11-21 yinhl1978
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    2022-06-23 zhwj
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我们报道1例患有双侧视神经发育不良和皮质视觉障碍的8岁男孩,伴ASTN1(OMIM#600904)突变。出于筛查目的行脑电图检查,本身没有癫痫发作/癫痫病史。脑电图可见缺乏后头部优势节律(poster

BMJ Neurology:儿科急性癫痫发作患者的临床特征和预后: 坦桑尼亚一家三级医院城市急诊科的前瞻性队列研究 

本研究结果显示儿童癫痫发作的发生率高于高收入国家和其他低收入和中等收入国家的报告。病情敏感度高,死亡率为16.7% 。发热、精神状态改变、缺氧、钾水平异常和脑膜炎诊断与死亡风险较高有关。

抗LGI1相关脑炎:面臂肌张力障碍发作 (FBDS)

面臂肌张力障碍发作是新近描述的癫痫类型,被认为与 LGI1 抗体介导的边缘性脑炎有关,LGI1 与脑的电压门控钾离子通道复合体有关。

2024 欧洲共识声明:原发性线粒体疾病患者癫痫的管理

国外神经内科相关专家小组(统称) · 2024-04-04