International Journal of COPD (Apr 2021)

Revision Bronchoscopy After Endobronchial Valve Treatment for Emphysema: Indications, Findings and Outcomes

  • Roodenburg SA,
  • Klooster K,
  • Hartman JE,
  • Koster TD,
  • van Dijk M,
  • Slebos DJ

Journal volume & issue
Vol. Volume 16
pp. 1127 – 1136

Abstract

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Sharyn A Roodenburg,1,2 Karin Klooster,1,2 Jorine E Hartman,1,2 T David Koster,1,2 Marlies van Dijk,1,2 Dirk-Jan Slebos1,2 1Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; 2Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The NetherlandsCorrespondence: Sharyn A RoodenburgDepartment of Pulmonary Diseases, AA11, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713, GZ, The NetherlandsTel +31 50 361 9194Fax +31 050 3619320Email [email protected]: Endobronchial valve (EBV) treatment is an effective treatment for patients with severe emphysema. Revision bronchoscopies after endobronchial valve treatment can be essential to prolong the effect of treatment or address long-term complications.Purpose: To evaluate the indications, endoscopic findings and outcomes of revision bronchoscopies and investigate if any predictors for granulation tissue formation, after EBV treatment, can be identified.Patients and Methods: Patients who underwent EBV treatment between 2016 and 2019 in our hospital, as routine care, were included. If a patient underwent a revision bronchoscopy, data regarding revision bronchoscopies, including indication, finding, intervention and pulmonary function testing (PFT) after revision bronchoscopy were analysed.Results: One hundred seventy-nine patients were included of which 41% required at least one revision bronchoscopy. In 43% of the revision bronchoscopy patients, the indication was loss of initial treatment effect. In 53% of the revision bronchoscopy patients, granulation tissue was found to be the underlying cause. Valve replacement(s) were performed in 51% of the revision bronchoscopy cases. Permanent valve removal was required in 13% of all patients. Overall, revision bronchoscopies led to improvements in PFT outcomes for patients experiencing no or a loss of initial treatment effect. No clinically relevant predictors for granulation tissue formation were identified.Conclusion: Performing a revision bronchoscopy after EBV treatment is a useful procedure leading to an improved treatment effect in most patients. Granulation tissue formation, causing valve dysfunction, is the most common cause of longer term problems.Keywords: bronchoscopy, lung volume reduction, one-way valve, COPD

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