Obstructive airway complications (OAC) (bronchial stenosis) are a significant problem in lung transplantation (LTx), and a special subset of chronic graft dysfunction. The overall rate is approximately 20% per recipient. Even though disobliteration (laser, argon-coagulation, cryotherapy) or balloon dilatation (bronchoplasty) are performed there is a high rate of recurrence. Self expandable metallic stents (SEMS) is one suggested treatment option after failed initial therapy but have a high rate of re-stenosis (50-60%). Morbidity, the risk for e.g. infection and atelectasis and lower long-term survival are often consequences in pts. treated with SEMS. No surgical options aside from re-do-transplantation are available. OAC are developing mostly in the time 3 - 6 months post Tx. The idea is a permanent but temporary therapy with replacement character of the stenosis which is given in degradable bronchial stents.