本文报告57例干燥综合征的肺功能改变。其中42例有呼吸道症状及伴有或不伴有X线胸片异常。其中76.2％的病人有肺功能损害。而15例无呼吸道症状,也无X线改变,其肺功能测定66.7％有小气病变,其中46.7％有通气功能障碍。上述结果表明干燥综合征在出现呼吸道症状和肺部X线改变前,已有66.7％的病人有肺功能损害。 This article reports 57 cases of Sjogren’s syndrome lung function changes. 42 cases had respiratory symptoms and with or without X-ray abnormalities. Of these, 76.2% of patients had impaired pulmonary function. Fifteen patients had no respiratory symptoms and no X-ray changes. 66.7% of them had stubborn airways, of which 46.7% had ventilatory dysfunction. The above results indicate that 66.7% of patients have lung damage before Sjogren’s syndrome occurs before respiratory symptoms and lung X-ray changes.