目的探讨多系统萎缩临床表现,分析患者出现缺氧、二氧化碳潴留及睡眠呼吸紊乱的临床意义。方法分析我科1例以晕厥为临床主诉,伴有括约肌功能障碍飞行人员临床诊治经过,本例在常规临床检查基础上进行了动脉血气、肺功能及睡眠监测检查。并进行相关文献复习。结果依据患者存在自主 Objective To investigate the clinical manifestations of multiple system atrophy and analyze the clinical significance of hypoxia, carbon dioxide retention and sleep-disordered breathing in patients. Methods One case of syncope was identified as the main clinical complaint in our department. The patients with sphincter dysfunction had clinical diagnosis and treatment. In this case, arterial blood gas, pulmonary function and sleep monitoring were performed on the basis of routine clinical examination. And review the relevant literature. The results are based on patient autonomy