Chronic obstructive pulmonary disease (COPD), emphysema and pulmonary fibrosis are serious respiratory conditions that, when they progress to advanced stages, can significantly impair lung function and overall health. A lung transplant may be considered to prolong life and improve quality of life when standard treatments are no longer effective. Dr. Maher Baz, a Mayo Clinic transplant pulmonologist, says a lung transplant is a complex and major surgery that can significantly improve a patient's