支气管哮喘
bronchial asthma
概念:简称哮喘,由多种细胞,特别肥大细胞、嗜酸性粒细胞和T淋巴细胞参与的气道的慢性炎症,引起气道的高反应性,由于变应原或其它因素引起的可逆性的气道阻塞性疾病。临床表现为反复发作性喘息,呼吸困难、胸闷或咳嗽。可自行缓解或治疗后缓解。Asthma is a chronic condition characterized by airway hyper-responsiveness duo to inflammation.The characteristic clinical feature is recurrent episodes of airways narrowing associated with cough and wheeze.
哮喘的流行病学
2000年我国儿童哮喘的患病率1.97%;首次发病:70%--80%<5岁,50%<3岁性别:男:女为2:1
一、发病机制
Mechanism Factors in the pathogenesis of asthma
Genetic predisposition environm ...
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