慢性阻塞性肺病(简称慢阻肺,COPD)的概念,国内、外学者有不同的理解。有的认为指一组疾病有气道阻塞的共同特(?),如慢性支气管炎、支气管哮喘和阻塞性肺气肿等属之。 但有的认为该三种疾病有其独立的特点,不能将单纯性慢性文气管炎或支气管哮喘称为慢阻肺。近年采,多认为慢性阻塞性支气管炎和肺气肿同时存在时,称这一综合征为慢阻肺。至于支气管哮喘与慢性阻塞性支气管炎同时存在时,则称为慢性哮喘性支气管炎,有的也列为慢阻肺,因此三者可以同时存在。由于慢阻肺的含意,尚无统一的意见, Chronic obstructive pulmonary disease (referred to as COPD) concept, domestic and foreign scholars have different understandings. Some believe that a group of diseases common to the airways obstruction (?), Such as chronic bronchitis, bronchial asthma and obstructive emphysema and so on. But some believe that the three diseases have their own characteristics, can not be simple chronic bronchitis or bronchial asthma is called chronic obstructive pulmonary. In recent years, mining, and more that chronic obstructive bronchitis and emphysema co-exist, said the syndrome is chronic obstructive pulmonary. As for the simultaneous presence of bronchial asthma and chronic obstructive bronchitis, then known as chronic asthmatic bronchitis, and some also as chronic obstructive pulmonary disease, so the three can exist at the same time. Due to the meaning of COPD, there is no unified opinion,