石棉工人肺通气功能变化的追踪研究

本研究通过对某石棉制品厂73例男性工人（其中健康石棉工人37例，石棉肺患者36例）分别于1984、1989及1994年进行了三次肺通气功能追踪测定，结果表明：石棉工人肺通气功能动态变化的特点是VC、FVC和FEV，进行性降低，FEV1／FVC％显著增高；石棉工人肺通气功能改变的早期阶段在接触石棉粉尘后10～15年期间；其肺通气功能损害的基本类型是限制型，在平均接尘15年后显示出典型的限制型特征。

A LONGITUDINAL STUDY OF LUNG VENTILATION FUNCTION CHANGESIN ASBESTOS WORKERS

Lung ventilation function was carried out for three times in 73 male workers(37 asbestos workers and 3.6 asbestosis patients) in an asbestos plant in 1984, 1989and 1994 respectively. The results were as follows VC, FVC and FEV1 progresively decreased, whereas FEV1/FVC% had an elevation. The early stage of lung ventilation function changes was average duration of expisurc to asbestos dust for 10-15 years. The basic type of klung ventilation function impairment in asbestos workers was restrictive dysfunction. Restrictive dysfunction in asbestos workers were found after exposure to asbestos dust for above 15 years.