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Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
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Two-Stage Bronchoscopic Endobronchial Valve Treatment Can Lead to Progressive Lung Volume Reduction and May Decrease

Thomas Egenod1, Jeremy Tricard2, Romane Fumat3

  • 1Pulmonology Department, Dupuytren University Hospital, Limoges, France.

International Journal of Chronic Obstructive Pulmonary Disease
|July 8, 2021
PubMed
Summary
This summary is machine-generated.

A novel two-step approach using endobronchial valves (EBV) for severe emphysema significantly reduced pneumothorax rates. This method achieved comparable clinical outcomes to single-step treatments, offering a safer alternative for lung volume reduction.

Keywords:
bronchoscopic lung volume reductionendobronchial valvespneumothoraxtwo-step EBV therapy

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Area of Science:

  • Pulmonary Medicine
  • Interventional Pulmonology
  • Respiratory Disease Management

Background:

  • Endobronchial valves (EBV) are used for severe emphysema, but pneumothorax is a significant complication.
  • Reducing pneumothorax risk is crucial for improving EBV therapy safety and efficacy.

Purpose of the Study:

  • To evaluate if a two-step EBV implantation strategy reduces pneumothorax incidence.
  • To assess if this staged approach improves target lobe volume reduction (TLVR) and clinical outcomes.

Main Methods:

  • Retrospective bi-center study of 58 patients with severe emphysema.
  • Two-step EBV implantation: initial placement in non-proximal segments, followed by remaining segments.
  • Comprehensive evaluation before treatment and 3 months post-second procedure.

Main Results:

  • Low pneumothorax rate (7%) observed with the two-step approach.
  • Significant improvements in FEV1, RV, 6MWD, BODE Index, and TLVR.
  • 74.1% of patients achieved clinically significant TLVR.

Conclusions:

  • The two-step EBV implantation strategy appears to lower pneumothorax risk.
  • This approach yields comparable clinical and physiological benefits to conventional single-step EBV treatment.
  • Staged EBV implantation offers a potentially safer option for lung volume reduction in emphysema.