慢性支气管炎是指气管、支气管粘膜及其周围组织的慢性非特异性炎症。临床上以咳嗽、咳痰或伴有喘息及反复发作的慢性过程为特征 ,以老年人多见。常并发阻塞性肺气肿、甚至肺动脉高压、肺源性心脏病 ,是一种严重危害人民健康的常见病。我市地处云南西部 ,海拔 2 36 0m ,冬季多 Chronic bronchitis refers to chronic nonspecific inflammation of the trachea, bronchial mucosa and surrounding tissues. Clinically, cough, sputum or chronic process accompanied by wheezing and recurrent episodes are characterized by more common in the elderly. Often complicated by obstructive pulmonary emphysema, and even pulmonary hypertension, pulmonary heart disease, is a serious risk to people’s health, a common disease. The city is located in western Yunnan Province, an altitude of 2 36 0m, more winters