目的 研究小儿重症肌无力危象的临床特点、诊断标准及治疗方法。方法 对4例重症肌无力危象患儿作一回顾性分析。结果 4例为急性起病,分别表现为两侧眼睑下垂,眼球活动受限,吞咽困难、四肢肌力、肌张力减弱。结论 小儿重症肌无力的病史和新斯的明试验阳性是诊断本病的重要依据。使用溴化吡啶斯的明和泼尼松可防止危象再发生。 Objective To study the clinical features, diagnostic criteria and treatment of pediatric myasthenia gravis crisis. Methods Four children with myasthenia gravis crisis were retrospectively analyzed. Results 4 cases of acute onset, respectively, showed ptosis on both sides, eye activity is limited, swallowing difficulties, limb muscle strength, muscle tone weakened. Conclusion The history of pediatric myasthenia gravis and the positive neostigmine test are important basis for the diagnosis of this disease. The use of pyridinium bromide and prednisone prevents the recurrence of the crisis.