日本呼吸学会的慢性阻塞性肺疾病(COPD)指南中,COPD的定义是:由于吸入有害微粒或气体引起肺部炎症,进而出现进行性气流受限的疾病。这里的气流受限有不同程度的可逆性,发病和经过缓慢,可出现劳力性呼吸困难。COPD包括伴有肺泡壁破坏的肺气肿型和中央气道病变为主体的慢性支气管 In the Japanese Society of Respiratory Society guidelines for chronic obstructive pulmonary disease (COPD), COPD is defined as a condition where progressive airflow limitation occurs due to lung inflammation caused by the inhalation of noxious particles or gases. The airflow here is limited to varying degrees of reversibility, onset and after slow labor fatigue can occur. COPD includes emphysematous type associated with alveolar wall destruction and central bronchial lesions as the main chronic bronchitis