Could tiny lung valves revive heart and muscle strength in COPD?

This trial tests whether implanting small valves in the airways—a procedure called lung volume reduction—can improve heart and skeletal muscle function in people with severe chronic obstructive pulmonary disease (COPD). Participants will undergo the procedure and be followed for a year with imaging, breathing tests, exercise assessments, and quality-of-life questionnaires. The goal is to see if reducing over-inflated lung tissue helps the heart pump better and strengthens muscles.