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COPD: Endoscopic Lung Volume Reduction Therapy

Bronchoscopic minimally invasive procedures (endobronchial valves, coils, vapor ablation, sealants) to achieve lung volume reduction in severe emphysematous COPD with hyperinflation, improving lung function, dyspnea, exercise capacity, and quality of life as alternative to lung volume reduction surgery.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Göğüs Hastalıkları department. Book Appointment →

What is COPD: Endoscopic Lung Volume Reduction Therapy?

Endoscopic lung volume reduction (ELVR) is a category of bronchoscopic minimally invasive procedures designed to reduce hyperinflation in severe emphysematous COPD, mimicking the benefits of surgical lung volume reduction surgery (LVRS) with lower morbidity and mortality. Several techniques exist with different mechanisms.

Endobronchial valves (EBV: Zephyr Pulmonx, Spiration/Olympus) are one-way umbrella-shaped valves placed in target lobe airways, allowing air and secretions out but preventing inspiration, causing target lobe atelectasis. Critical requirement is absence of collateral ventilation between target and adjacent lobe (assessed by HRCT fissure integrity ≥95% and/or Chartis catheter system). LIBERATE and TRANSFORM trials showed significant FEV1, dyspnea, 6MWT, and quality of life improvements.

Other ELVR modalities include endobronchial coils (RePneu, no collateral ventilation requirement, mechanical compression of parenchyma), bronchoscopic thermal vapor ablation (InterVapor, heat-induced contraction), and biological lung volume reduction (sealant-based, less commonly used). Patient selection criteria: severe emphysema (FEV1 15-50% predicted), significant hyperinflation (RV >175% predicted, RV/TLC >0.55), heterogeneous emphysema distribution (target lobe >40% destruction, ipsilateral >25% difference), and ability to tolerate procedure. Complications include pneumothorax (most common with EBV, 25-30%), COPD exacerbation, pneumonia, and valve migration.

Symptoms

Severe COPD with marked dyspnea on minimal exertion
Hyperinflation with low diaphragm position
Reduced exercise tolerance, quality of life
Failed maximal medical therapy (LABA/LAMA/ICS, pulmonary rehabilitation)
Heterogeneous emphysema on HRCT
Recurrent COPD exacerbations

Risk Factors

Severe emphysematous COPD (GOLD stage 3-4)
Smoking history (quit ≥4 months pre-procedure)
Heterogeneous upper lobe predominant emphysema (best candidates)
Significant hyperinflation (RV >175%, RV/TLC >0.55)
Failed medical optimization and pulmonary rehabilitation
Age 40-75 years (relative contraindications outside this range)

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Severe COPD with persistent dyspnea despite maximum medical therapy
  • Recurrent COPD exacerbations affecting quality of life
  • Severe hyperinflation symptoms
  • Interest in alternatives to lung transplantation
  • Heterogeneous emphysema diagnosis on HRCT
  • Limited exercise tolerance from COPD

Treatment Methods

01
Comprehensive evaluation: PFTs (FEV1, RV, TLC, DLCO), 6MWT, HRCT chest, BODE index
02
HRCT analysis: emphysema distribution (heterogeneity), fissure integrity (>95% complete for EBV), target lobe destruction
03
Chartis catheter measurement of collateral ventilation if HRCT inconclusive
04
Maximize medical therapy and complete pulmonary rehabilitation
05
Smoking cessation ≥4 months
06
Endobronchial valves (Zephyr Pulmonx, Spiration Olympus) for fissure-complete patients
07
Endobronchial coils for fissure-incomplete or homogeneous emphysema
08
Bronchoscopic thermal vapor ablation (InterVapor)
09
Surgical LVRS or lung transplantation for non-candidates
10
Post-procedure: monitor for pneumothorax (most common complication), COPD exacerbation, pneumonia

Which Department to Visit?

You can visit our Göğüs Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Göğüs Hastalıkları Department

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.