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目的探讨尘肺分期与肺功能的关系。方法采用肺功能测试仪测定爆破工矽肺患者用力肺活量(FVC),一秒钟用力呼气量(FEV1),一秒钟用力呼气量与用力肺活力量比值(FEV1%)。结果 94例患者中,肺功能异常59例,占62.8%。Ⅲ期矽肺患者肺损伤例数和程度均明显高于Ⅰ、Ⅱ期,各期比较,差异有统计学意义。矽肺患者肺功能损伤以限制型和单纯FEV1下降比例最高。结论矽肺患者随矽肺期别增高,其肺功能损伤严重程度和发生率增加,尤其以Ⅲ期患者为著。该文中矽肺患者肺功能损伤以限制型和单纯FEV1下降为主,对于单纯FEV1下降患者建议进行肺弥散功能以及其他肺功能指标检测。
Objective To investigate the relationship between pneumoconiosis stage and pulmonary function. Methods FVC, FEV1, forced expiratory volume per second (FEV1%) and forced vital capacity (FEV1%) were determined by using lung function tester. Results Among the 94 patients, 59 cases were abnormal pulmonary function, accounting for 62.8%. The number and extent of lung injury in patients with stage Ⅲ silicosis were significantly higher than those in stage Ⅰ and Ⅱ, and the differences were statistically significant. Pulmonary function impairment in patients with silicosis with limited and simple FEV1 decline in the highest proportion. Conclusion The silicosis patients with silicosis increased, the severity of the lung function damage and the incidence increased, especially in patients with stage Ⅲ. In this paper, pulmonary function impairment in patients with silicosis limited and simple FEV1 decline mainly for the decline in patients with pulmonary FEV1 recommended lung diffusion function and other lung function tests.