支气管哮喘与慢性喘息性支气管炎在急性发作期都有以哮喘为主的临床表现,因而在临床实践中,常常容易将慢性喘息性支气管炎误诊为支气管哮喘,从而影响疗效。其实两者的基本概念、发病原因、发病年龄、临床特点及治疗原则都有着根本的区别。支气管哮喘是一种变态反应性疾病,发病季节多在春秋两季,发病年龄以少年及儿童多见,常伴有过敏史。据有关材料统计,约有1/5的哮喘病人有家族病史。支气管哮喘的临床特点是反复发作、带有哮鸣音的呼气性呼吸困难,常突然发病,迅速缓解;发病时双肺可闻及弥漫的高音调干湿罗音;发作间歇期多无 Bronchial asthma and chronic asthmatic bronchitis in the acute attack have asthma-based clinical manifestations, and therefore in clinical practice, it is often easy to chronic asthmatic bronchitis misdiagnosed as bronchial asthma, thus affecting the efficacy. In fact, the basic concepts of the two, the etiology, age of onset, clinical features and treatment principles are fundamentally different. Bronchial asthma is an allergic disease, the onset of the season mostly in spring and autumn, age of onset to juveniles and children more common, often accompanied by allergies. According to statistics, about 1/5 of asthma patients have a family history. The clinical features of bronchial asthma is recurrent, exhaled wheeze breathing difficulties, often sudden onset, rapid relief; the incidence of both lungs can smell and diffuse high-tone dry wet rales; episodes of intermittent non-