吸烟对健康成年男性肺功能的影响

目的探讨吸烟对健康成年男性肺功能的影响，督促吸烟者尽早戒烟。方法采用日本美能AS-505型全自动便携式电脑化肺功能仪对201例健康成年男性进行肺功能检测，分析不同程度吸烟量对肺功能的影响。结果各项肺功能检测指标中，肺容量指标和是否吸烟及吸烟量无明显关系；与不吸烟患者相比，吸烟患者肺通气功能（第1秒用力呼气容积、每分最大通气量、一秒率）以及小气道指标（最大呼气流速、用力呼气中期流速）均明显降低，其差异有统计学意义（P〈0．05或〈0．01），并且其损害程度与吸烟指数成正比。结论吸烟影响肺功能，吸烟者在尚无临床症状时，其肺通气功能已明显降低，尤其以小气道功能受损最为明显。

The effect of smoking to the pulmonary function of healthy male

Objective To investigate the lung function testing performing in normal smokers, and urge smokers to stop smoking early. Methods Two hundred and one adult men did the pulmonary function testing by MINATO AS-505 portable spirometer, and analyzed the effect of different smoking degree on the pulmonary function. Results There was no relationship between lung volume index and smoking, smoking degree. Compared with nonsmokers, the indicants such as FEV1, MVV, FEV1/FVC had decreased, and the indexes of the small airway function （PEF, FEF25%-75%）had significantly dropped in the smokers. And the smokers especially long-term smokers, most indexes of the pulmonary functions and all indexes of the small airway function correlated with smoking index. Conclusion Although smokers do not show clinical symptoms, their lung functions have been reduced, especially small airway function.