重症肌无力是一种神经肌肉接头的自身免疫性疾病,近年来,其外科治疗尤其受到临床医师的重视。我科1983年～1994年间采用胸腺切除术共治疗小儿重症肌无力患儿(≤14岁)24例,其中男10例,女14例。年龄2～14岁,平均7.6岁。病程最短者2个月,最长者1年,平均7.8个月。按目前国际普遍接受的 Osserman 分型,重症肌无力仅限于眼肌者为Ⅰ Myasthenia gravis is an autoimmune disease of neuromuscular junction. In recent years, its surgical treatment has drawn great attention from clinicians. In our department from 1983 to 1994, 24 cases of pediatric myasthenia gravis (≤14 years) were treated with thymectomy, including 10 males and 14 females. Age 2 to 14 years old, with an average of 7.6 years old. The shortest course of 2 months, the longest one, an average of 7.8 months. According to the current international accepted Osserman classification, myasthenia gravis is limited to the eye muscle who Ⅰ