患儿男,1.5岁。因突发抽搐来诊。患儿1天前无明显诱因出现发热,测体温37.8℃,非喷射性呕吐2次。乡村医生给予“止吐针”1支肌注(药名及剂量不详)。约20分钟后,患儿突发抽搐,速来本院。查体:体温37.5℃,体重14kg,双目左向凝视,颈强直,双上肢强直性抽动,双肺呼吸音清,未闻及干、 Children male, 1.5 years old. Because of sudden convulsions to diagnosis. No obvious incentive to children with fever appeared before 1 day, measuring body temperature 37.8 ℃, non-jet vomiting 2 times. Country doctor give “stop spit” 1 intramuscular injection (drug name and dose unknown). About 20 minutes later, children with sudden convulsions, speed to our hospital. Physical examination: body temperature 37.5 ℃, weight 14kg, binocular left to stare, neck stiffness, twitching both upper extremities, lung breath sounds clear, no smell and dry,