患儿,男,9岁。因头晕、头痛5ｄ,抽搐1次,门诊拟“抽搐查因:病毒性脑炎?”入院。5ｄ前出现头晕、头痛、恶心,伴低热,入院前1ｄ头晕、头痛加重,呕吐2次,为胃内容物,呈喷射性,随后出现全身抽搐,持续约5ｍｉｎ缓解,抽搐后出现意识模糊,眼睑浮肿,病程中无尿频、尿急及血尿,但尿量减? Children, male, 9 years old. Due to dizziness, headache 5d, convulsions 1, outpatient quasi “convulsions check because: viral encephalitis?” Admission. Dizziness, headache, nausea, fever, dizziness 1d before admission, aggravated headache, vomiting 2 times, as the contents of the stomach, was sprayed, followed by systemic convulsions continued for about 5min to relieve confusion after convulsions, eyelid Edema, no frequency of urinary frequency, urgency and hematuria, but less urine output?