重症肌无力危象是神经科急重症之一 ,若不及时抢救 ,死亡率很高。呼吸衰竭是常见死亡原因 ,改善通气功能是抢救成功的关键 ,我院神经科于 1 996年 6月～ 2 0 0 1年 6月采用机械通气加大剂量甲基强的松龙治疗重症肌无力危象 1 7例 ,成功 1 6例 ,现报道如下。1　临床资料1 7例中 Myasthenia gravis crisis is one of neurological critical illness, if not rescued, the mortality rate is high. Respiratory failure is the common cause of death, improve ventilation is the key to the success of the rescue, our hospital neurology in June 1996 ~ June 2001 using mechanical ventilation plus large doses of methylprednisolone for the treatment of myasthenia gravis Crisis in 17 cases, the success of 16 cases, are reported below. 1 clinical data in 17 cases