2.急性加重期以控制感染及住院治疗为主。

2.acute exacerbation period to control infection and hospitalization.

3.双水平无创正压通气治疗：家庭无创呼吸机治疗（一般使用ST模式双水平无创呼吸机），可达到改善机体缺氧与二氧化碳潴留的双重目的，可显著减少住院次数，明显提高生活质量。无创正压通气治疗是世界卫生组织制定的“全球COPD的诊断和防治策略”中的重要治疗方案。

3.bi level noninvasive positive pressure ventilation treatment: the family has no invasive ventilator treatment (generally use ST mode double level noninvasive ventilator), can achieve the double purpose of improving the body hypoxia and carbon dioxide retention, can significantly reduce the number of hospitalization, improve the quality of life. Noninvasive positive pressure ventilation therapy is an important treatment plan for the World Health Organization to develop the "diagnosis and prevention strategy of global COPD".