Emphysema Treatment Trial

The Emphysema Treatment Trial (NETT) was a large research study that evaluated the effectiveness of lung volume reduction surgery (LVRS) for severe emphysema, a COPD condition that damages alveoli. The trial aimed to determine which patients benefited most from surgery compared to standard medical therapy. It found that carefully selected patients with certain lung characteristics had improved symptoms, quality of life, and survival after surgery. The study helped doctors identify who might benefit from this procedure, guiding treatment options to improve outcomes for those with advanced emphysema.