Endoscopic Lung Volume Reduction Using Endobronchial Valves in Patients with Severe Emphysema and Very Low FEV<sub>1</sub>

Abstract

The patients benefitted moderately from EBV treatment despite an initially low FEV1. Some patients improved remarkably. EBV treatment in patients with an FEV1 ≤20% of pred. is generally feasible and safe. The greatest risk is pneumothorax with prolonged chest tube duration.