Background And Objective: Acute exacerbation of fibrosing interstitial lung disease (AE-FILD) is a serious condition with a high mortality rate. We aimed to comprehensively analyze cytokines in bronchoalveolar lavage fluid and their association with the clinical course of AE-FILD.
Methods: We retrospectively enrolled 60 patients with AE-FILD who underwent bronchoalveolar lavage.