患者男,15岁。反复发作性意识丧失,四肢抽搐2年。2年前患者有“轻度脑震荡”史,数日后无诱因出现倒退行走6步,继之意识丧失,跌倒,双眼上翻,口唇紫绀,口吐白沫,四肢强直、抽搐,伴尿失禁。数分钟后清醒,对发作情况不能回忆。但在意识丧失前有头顶部闷胀感,接着不由自主地向后倒退。无幻听幻觉,无错觉或恐慌,无眩晕或恶心。开始每月3～6次,逐增至每月10多次或每日4～5次,发作形式同前,每次意识丧失前都有倒退行走5～6步。睡眠时无发作。无发作时表情呆滞,反应迟钝,懒言少动,常失眠。脑外伤前精神状态正常。曾在福州军区总院神经科诊断为“癫痫”,口服丙戊酸钠、大伦丁,γ—氨酪 Male patient, 15 years old. Repeated episodes of loss of consciousness, limbs twitch 2 years. Two years ago, the patient had a history of “mild concussion”. After a few days, there were 6 steps without any incentive to go backwards, followed by loss of consciousness, falls, eyes upturned, cyanotic lips, foaming at the mouth, tetanus, convulsions, incontinence . Awake after a few minutes, can not recall the episode. However, before the loss of consciousness, there is a sense of stuffiness at the top of the head, and then backward involuntarily. No auditory hallucinations, no illusion or panic, no dizziness or nausea. Start 3 to 6 times per month, by increasing to more than 10 times per month or 4 to 5 times per day, the attack form with the former, before each loss of consciousness have walked back 5 to 6 steps. No episodes of sleep. No expression of sluggish, unresponsive, lazy speechless, often insomnia. Pre-traumatic mental status is normal. In the Department of Neurology, Fuzhou Military Region General Hospital diagnosed as “epilepsy”, oral sodium valproate, Darren, γ-ammonia cheese