This study analyzed the impact of bronchial stenosis (BS) on graft function in lung transplant patients. Of the 34 patients studied over 2 years, 57% developed BS. Airway stents were placed in 39% of patients with BS who had a decline in FEV1. Patients with pulmonary fibrosis were more likely to develop BS. Patients who required stents had a more rapid decline in FEV1 than those without airway complications. Early intervention for BS may help slow graft function decline and prevent progression to bronchiolitis obliterans syndrome.