女,8岁。生后4个月出现阵发性抽搐,发作时头及躯干急骤前屈,上肢前伸,然后屈曲内收,下肢屈曲。每次抽搐持续1～2秒,每日发作10～30次不等。患儿自幼较同龄儿智力差,剪刀步态。5岁时高热惊厥1次。近半年来又出现发作性点头,不能自控,每次发作点头10余次,数日发作1 Female, 8 years old. 4 months after birth, paroxysmal convulsions, head and torso abrupt episode attack, upper extremity anterior flexion and adduction, lower limb flexion. Each convulsion continued for 1 to 2 seconds, 10 to 30 times a day episodes. Childhood children with mental retardation than their peers, scissors gait. 5 years old febrile seizures 1 time. In the past six months there have been episodes of nodding, can not be controlled, nodded more than 10 times each episode, a few days attack 1