甲型肝炎病毒感染所致的感染性神经系统并发症很少见。以前曾报告过2例成年男性脑炎病例经血清学证实为甲型肝炎病毒所致。现报告一女孩在甲型肝炎病毒感染前驱期发生急性共济失调性脑炎。病例女,13岁。因头痛、嗜睡24小时入院。入院前一天来,病儿发热、呕吐、定向力障碍。入院前一小时,发作一次持续数秒钟的抽搐。曾服过补热息痛2片。体检:热病容,嗜睡,语言含混不清,不能行走。四肢均有共济失调。眼底正常。无局灶性神经病 Infectious nervous system complications caused by hepatitis A virus infection are rare. Previously reported 2 cases of adult male encephalitis serologically confirmed as hepatitis A virus. A girl is now reported to have AAS in the priming phase of Hepatitis A virus infection. Case female, 13 years old. Due to headache, lethargy 24 hours admission. The day before admission, sick children fever, vomiting, disorientation. One hour before admission, a seizure lasts for a few seconds. Had taken two heat restorative pain. Physical examination: Fever, drowsiness, vague language, can not walk. All limbs are ataxia. Fundus normal. No focal neuropathy