大量吸烟者中发生呼吸道通气不畅的占15～20％,系因内径小于2mm的小气道的异常所致。小气道不畅与呼吸道支气管的慢性炎症过程有关。但是,炎症引起通气不畅的确切机制尚不清楚。为此,作者对吸烟者肺切除的组织作了气道形态测定的研究,以期确定这些伴有通气不畅者的气道是否因吸烟而 A large number of smokers in poor respiratory ventilation accounted for 15 to 20%, due to the inner diameter of less than 2mm small airway abnormalities caused. Poor small airway and bronchial airway inflammation of the chronic process. However, the exact mechanism by which inflammation causes poor ventilation is not clear. To this end, the authors conducted a study of airway morphology in smokers with lung resections to determine whether these airways associated with poor ventilation are smoking-free