支气管哮喘是儿童常见慢性病,患儿得病后易反复发作,带来莫大痛苦,故哮喘的防治具有重大意义。哮喘的定义及发病情况哮喘是一种多因性的疾病,各种变应原可能是特异病因,但寒冷、过劳,感染、刺激除气休及精神因素等为非特异性诱因。 Scadding认为,哮喘是在支气管高反应性基础上,由变应原或其他因素刺激引起广泛性气道狭窄。以弥漫性广泛性气道阻力变化为特征的疾病。而且其过程为可逆性的。世界各地哮喘的发病率为1～11％不等。1979年,诸君龙等在上海及浙江嘉善调查城乡居民14万,城市发病率为0.69％,农村儿童发病率为1.31％,城市儿童为1.91％。1980年,叶世泰等在北京调查6563人,发病率为5.29％。由于诊 Bronchial asthma is a common chronic disease in children, children prone to recurrent episodes of illness, causing great pain, so the prevention and treatment of asthma is of great significance. The definition and incidence of asthma Asthma is a multi-cause disease, all kinds of allergens may be specific causes, but cold, fatigue, infection, and other factors to stimulate the exclusion of gas and other non-specific incentives. Scadding believes that asthma is based on bronchial hyperresponsiveness, caused by allergens or other factors to stimulate the extensive airway stenosis. A disease characterized by diffuse and extensive airway resistance changes. And its process is reversible. The incidence of asthma in the world varies from 1 to 11%. In 1979, Zhujun Long et al surveyed 140,000 urban and rural residents in Shanghai and Jiashan, Zhejiang, with an incidence rate of 0.69% in urban areas, 1.31% in rural areas and 1.91% in urban areas. In 1980, Ye Shi Tai et al surveyed 6563 people in Beijing with a prevalence of 5.29%. Due to consultation