慢性阻塞性肺病 (COPD)在急性发作期常导致II型呼吸衰竭 ,临床上常给予抗炎、解痉、平喘 ,持续低流量吸氧和呼吸兴奋剂治疗 ,往往难以奏效 ,病死率较高 ,而需以气管插管机械通气治疗 ,但并发症较多 ,近年来 ,无创性人工通气方法越来越多的应用于临床 ,为纠正由COPD并发的II型呼 Chronic obstructive pulmonary disease (COPD) often leads to type II respiratory failure during acute exacerbation, often given clinically anti-inflammatory, antispasmodic, antiasthmatic, sustained low flow oxygen and respiratory stimulants, often difficult to work with high mortality , And the need for endotracheal intubation mechanical ventilation, but more complications, in recent years, more and more non-invasive artificial ventilation method used in clinical, in order to correct the type II by COPD