慢性支气管炎(慢支)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、咳痰或伴有喘息以及反复发作的慢性过程为特征。病情若缓慢进展,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。尤以老年人多见[1]。本组对116例 Chronic bronchitis (chronic bronchitis) refers to the chronic non-specific inflammation of the trachea, bronchial mucosa and surrounding tissues. Clinically with cough, sputum or with wheezing and recurrent chronic process is characterized. Slow progression of the disease, often complicated by obstructive pulmonary emphysema, and pulmonary hypertension, pulmonary heart disease. It is a common disease that seriously endangers people’s health. Especially in the elderly more common [1]. This group of 116 cases