慢性阻塞性肺病（COPD）和睡眠呼吸障碍均较常见，而COPD患者又常被睡眠呼吸障碍所困扰，睡眠低氧血症又可加重COPD肺动脉高压从而加速疾病的进展。我们选择1997年12月至1999年3月我村住院及门诊COPD患者91例，对全部患者进行7小时以上夜间多导睡眠图监测（PSG），以了解其睡眠 Chronic Obstructive Pulmonary Disease (COPD) and sleep-disordered breathing are more common, while COPD patients are often troubled by sleep-disordered breathing, and sleep hypoxemia can exacerbate COPD pulmonary hypertension and thus accelerate the progression of the disease. We selected 91 patients in our hospital and outpatient COPD patients from December 1997 to March 1999 and conducted night polysomnography (PSG) for more than 7 hours on all patients to understand their sleep