Long-term follow up after endoscopic valve therapy in patients with severe emphysema.
Daniela GompelmannTobias HeinholdMatthias RöttingElena BischoffKonstantina KontogianniRalf EberhardtFelix J F HerthPublished in: Therapeutic advances in respiratory disease (2020)
Patients treated by valves experienced clinical improvement over 1 year following valve therapy. Afterwards, clinical benefit gradually declines more likely due to COPD progression.