Objective To investigate the effect of continuous positive airway pressure(CPAP) on nocturnal polyuria in patients with obstructive sleep apnea syndrome(OSAS).

• 目的研究持续气道正压（CPAP）治疗对阻塞性睡眠呼吸暂停综合征（OSAS）患者夜间多尿的影响及其与夜间心钠素水平的关系。