继发性双侧膈神经麻痹，常致急性呼吸衰竭，须机械通气维持呼吸。我院近年来治疗双侧膈神经麻痹，予机械通气辅助均获得成功，但耗时耗力耗财，总结其中成功的经验，对将来的工作不无裨益。１临床资料３例，男性２例，女性１例，平均年龄３０岁。均为纵隔巨大肿瘤、双侧性生长 Secondary bilateral phrenic nerve paralysis, often caused by acute respiratory failure, mechanical ventilation to maintain breathing. In recent years, our hospital for the treatment of bilateral phrenic nerve paralysis, to mechanical ventilation were successful, but the time-consuming and costly, summed up the successful experience, the future work is not without benefit. 1 clinical data in 3 cases, 2 males and 1 females, with an average age of 30 years. Are huge mediastinal tumors, bilateral growth