“…However, the procedure is effective, and has a high cost and a high cost per quality-adjusted lifeyear. 38,39 The finding of no survival benefit of lung transplantation in COPD/emphysema in the present study, combined with the mixed nature of previous evidence, suggests that if no sub-group that benefits from the procedure can be identified, then a randomized, controlled trial of lung transplantation for COPD/emphysema might be considered. However, several studies have shown an improvement in quality of life in survivors of lung transplantation, 5-8 which might be considered as important as survival.…”