Outcomes of bronchoscopic lung volume reduction coil treatment in patients with severe emphysema

Background: This study aims to evaluate the outcomes of bronchoscopic lung volume reduction coil treatment in patients with severe emphysema.Methods: Between February 2016 and March 2019, a total of 20 severe emphysema patients (19 males, 1 female; mean age: 65.2 +/- 5.2 years; range, 52 to 73 years) who underwent bronchoscopic lung volume reduction coil treatment were included. Each patient underwent pre-and post-treatment (6 and 12 months) pulmonary function tests, 6-min walking distance, modified Medical Research Council dyspnea scores, and diffusing capacity of the lung for carbon monoxide tests.Results: An mean number of 12.0 +/- 3.8 coils was placed in each lobe. There were significant improvements in the patients' pulmonary function tests and quality of life 12 months after the treatment. There was a significant difference in dyspnea as assessed by the modified Medical Research Council dyspnea scores 12 months after treatment compared to pre-treatment scores (p<0.05). There was no change in the pulmonary function tests six months after treatment, while a significant improvement was seen at 12 months (p<0.05). Conclusion: Bronchoscopic lung volume reduction coil treatment seems to be a promising modality for severe emphysema patients with significant improvements in the pulmonary function test results, modified Medical Research Council dyspnea scores, and 6-min walking distance.