【病例】　女,79岁。发作性昏迷逐渐加重6年,频繁性发作1个月入院。患者6年前开始,无明显诱因多在2,5,7,11时左右突发昏迷,呼之不应,持续10余分钟后自行缓解。以后发作次数逐渐频繁,昏迷时间延长至30分钟或数小时,偶有大小便失禁,但无抽搐和口吐白沫。每次发作时均以静脉注射高 【Case】 Female, 79 years old. Paroxysmal coma gradually increased for 6 years, and frequent episodes were admitted to hospital one month later. The patient started 6 years ago, and no obvious inducement occurred at 2, 5, 7 or 11 o’clock. He was in a coma. He should not respond and he should relieve himself after more than 10 minutes. The number of episodes was gradually increased. The coma time was extended to 30 minutes or a few hours. Occasional incontinence occurred, but no convulsions and mouth foaming occurred. Intravenous injection is high on each attack