患者男性,48岁,既往身体健康,无头部外伤史、神经系统感染史,及酗酒史,亦未曾滥用过药物。过去也未接触过大量的CS_2或其他神经毒物。1979年2月,装有100～150 mlCS_2的桶在25℃房间里起火。患者参加救火,在室内停留约20分钟,曾失去知觉约10分钟。估计当时室内CS_2最低浓度为400 ppm(假如全部CS_2气化后均匀分布在室内)。最高浓度为470,000ppm(假如在25℃时CS_2气体饱和)。住院观 Male patient, aged 48, previously healthy, without history of head injury, history of nervous system infection, history of alcohol abuse, and never misused drugs. In the past, I have not been exposed to large amounts of CS_2 or other neurotoxic agents. In February 1979, a barrel containing 100 to 150 ml of CS_2 caught fire in a room at 25 ° C. Patients involved in the fire fighting, indoors for about 20 minutes, had lost consciousness about 10 minutes. The minimum indoor concentration of CS_2 was estimated at 400 ppm (assuming that all of the CS_2 is gasified and evenly distributed indoors). The maximum concentration is 470,000ppm (provided that the CS_2 gas is saturated at 25 ° C). Hospitalization