[Methods]The patients with stable COPD were measured by polysomnography (PSG) during all-night sleep ,19 patients of COPD with OS were treated with BiPAP, the results analyzed before and after treatment.

• 方法选择慢性阻塞性肺疾病(COPD)稳定期患者经多导睡眠图(PSG)监测分为OS组和COPD组,对19例OS进行夜间双水平正压通气治疗,对治疗前、后的监测结果进行分析。