Ogura Kaeko, Maegaki Yoshihiro, Koeda Tatsuya
Department of Child Neurology, Institute of Neurological Sciences, Faculty of Medicine, Tottori University, Tottori, Japan.
Pediatr Neurol. 2005 Aug;33(2):142-5. doi: 10.1016/j.pediatrneurol.2005.02.011.
A 14-year-old female of moderately retarded intelligence exhibited frequent seizures of eyelid myoclonia with absences. Video-electroencephalographic recording revealed that slow eye closure was followed by eyelid myoclonia with absence seizures and that paroxysmal burst activities in the occipital region always preceded generalized spike-wave discharges. Paroxysmal burst activities were induced not only by slow eye closure but also by fixation-off, wearing Frenzel glasses. We speculate that the sensitivity to fixation-off in the occipital lobe is one of the triggering mechanisms in eyelid myoclonia with absences.
一名智力中度发育迟缓的14岁女性频繁出现眼睑肌阵挛伴失神发作。视频脑电图记录显示，缓慢闭眼后出现眼睑肌阵挛伴失神发作，枕区的阵发性爆发活动总是先于全身性棘波放电。阵发性爆发活动不仅由缓慢闭眼诱发，还可由闭眼、佩戴Frenzel眼镜诱发。我们推测枕叶对闭眼的敏感性是眼睑肌阵挛伴失神发作的触发机制之一。
