我院1987～1992年收治重症肌无力9例。其中女6例,男3例;1～3岁4例,～5岁4例,～7岁1例。病程7天～1月6例,～1年3例,全部为单纯眼肌型。均用强的松治疗,每日剂量1.5mg/kg,分2～3次口服,症状缓解后再维持2周,减为每日1mg/kg,用4周后,每7～14天减2.5～5mg,直至 Our hospital from 1987 to 1992 admitted to myasthenia gravis in 9 cases. There were 6 males and 3 females, 4 cases were 1-3 years old, 4 cases were ~ 5 years old and 1 case was ~ 7 years old. Duration of 7 days to January 6 cases, ~ 1 year in 3 cases, all for the simple ocular muscle type. All were treated with prednisone, daily dose of 1.5mg / kg, 2 to 3 times orally, and then maintain the symptoms for 2 weeks, reduced to 1mg / kg daily, after 4 weeks, every 7 to 14 days by 2.5 ~ 5mg, until