慢性阻塞性肺病 (ＣＯＰＤ)是老年人中的常见病。由于自身呼吸器官长期被破坏和逐年衰退的肺功能 ,一旦在某种因素的诱发下发生急性呼吸衰竭时 ,往往出现严重的缺氧和二氧化碳潴留 ,重度呼吸困难 ,昏迷等症状。病死率很高。此时单纯依靠氧疗及药物治疗常难以奏效。及时行机械通 Chronic obstructive pulmonary disease (COPD) is a common disease in the elderly. Due to long-term destruction of their own respiratory organs and lung function decline year by year, once the acute respiratory failure induced by some factors, there are often severe hypoxia and carbon dioxide retention, severe respiratory difficulties, coma and other symptoms. High mortality. At this point simply rely on oxygen therapy and drug treatment is often difficult to work. Timely mechanical pass