重症肌无力是因神经肌肉接头处病变所引起的骨骼肌易疲劳,经休息后可以恢复的一组慢性疾病。一百年来,临床认识没有多大补充,但在病因、发病原理和治疗等方面,特别从 Smither(1959),Nastuk 和 Simpson(1960)间接证明本病属于自身免疫的单独疾病以来,已取得了很大的进展。肌无力的原因正常肌肉的收缩,依赖运动神经末梢中乙 Myasthenia gravis is a group of chronic diseases that can be recovered after rest by the skeletal muscle caused by the lesions of neuromuscular junction. For over a hundred years, clinical knowledge has not been greatly supplemented, but since the disease has been indirectly diagnosed as an autoimmune solitary disease in particular in the etiology, pathogenesis and treatment, especially from Smither (1959), Nastuk and Simpson (1960) Great progress. Muscular weakness due to normal contraction of the muscles, motor nerve endings in the B