慢性阻塞性肺病（COPD）为老年常见病，严重的COPD患者，呼吸功能明显减退，临床主要表现为低氧血症，长期低氧可致肺动脉高压及多脏器功能损害。本文对16例老年COPD患者在病情稳定期的夜间进行氧饱合度监测，旨在进一步加深对夜间持续氧疗的认识。l资料和方法1．l研究对象选择 Chronic Obstructive Pulmonary Disease (COPD) is a common disease in the elderly. In severe COPD patients, respiratory function is significantly reduced. The main clinical manifestations are hypoxemia. Chronic obstructive pulmonary disease (COPD) can cause pulmonary hypertension and multiple organ dysfunction. In this paper, 16 elderly patients with COPD were monitored for oxygen saturation during the night with stable disease, aiming to further deepen the understanding of nighttime continuous oxygen therapy. l Materials and Methods 1. l research object selection