患儿,女,1岁2个月。既往无食物药物过敏史,无抽搐史。主因“发热声嘶2 d,反复抽搐28h”入院。患儿2 d前出现发热,热峰达39.8℃,伴有声嘶、犬吠样咳嗽,有痰难以咳出。于28 h前起出现抽搐,反复发作约十余次,发作时主要表现为四肢抖动、双目凝视、口吐白沫、面色青 Children, women, 1 year old 2 months. Past history of food allergy, no convulsion history. The main reason “fever hoarseness 2 d, repeated convulsions 28h ” admission. 2 days before onset of fever in children, hot peak reached 39.8 ℃, accompanied by hoarseness, bark-like cough, sputum difficult to cough. In 28 h before the onset of convulsions, repeated attacks for about more than 10 times, mainly for the onset of limbs shaking, binocular stare, foaming at the mouth, looking green