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Endoscopic lung volume reduction.

Felix J F Herth1, Daniela Gompelmann, Armin Ernst

  • 1Department of Pulmonary and Critical Care Medicine, Thoraxklinik University of Heidelberg, Heidelberg, Germany. Felix.Herth @ thoraxklinik-heidelberg.de

Respiration; International Review of Thoracic Diseases
|November 20, 2009
PubMed
Summary
This summary is machine-generated.

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Respiratory Volumes01:15

Respiratory Volumes

Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...

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New endoscopic lung volume reduction techniques aim to improve chronic obstructive pulmonary disease (COPD) symptoms. These approaches, including valves, coils, and ablation, remodel hyperinflated lungs for better airflow.

Area of Science:

  • Pulmonology and Respiratory Medicine
  • Interventional Pulmonology

Background:

  • Chronic obstructive pulmonary disease (COPD) involves chronic airflow obstruction and lung hyperinflation.
  • Current management guidelines recommend stepped-care algorithms for pharmacologic and nonpharmacologic therapies.
  • Significant research has focused on nonpharmacologic interventions to alleviate COPD symptoms.

Purpose of the Study:

  • To review emerging endoscopic lung volume reduction (ELVR) principles for COPD management.
  • To discuss the potential of ELVR techniques in patients with heterogeneous and homogeneous emphysematous diseases.

Main Methods:

  • Review of evidence-based management approaches and stepped-care algorithms.
  • Focus on three endoscopic lung volume reduction principles: blocking devices (valves), nonblocking devices (coils), and irreversible nonblocking techniques (e.g., thermal vapor ablation, polymeric lung volume reduction).

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  • Investigation of airway bypass tracts for homogeneous emphysematous diseases.

    • Main Results:

    • Three ELVR principles (valves, coils, ablation/polymer) have shown promise in later-stage clinical trials for heterogeneous emphysema.
    • These techniques aim to collapse and remodel hyperinflated lung tissue.
    • Airway bypass tracts are under investigation for homogeneous disease to improve lung emptying.

    Conclusions:

    • Endoscopic lung volume reduction offers promising nonpharmacologic therapeutic avenues for COPD.
    • Technological advancements are providing novel options for lung remodeling in emphysema.
    • Further investigation into techniques like airway bypass tracts may expand treatment possibilities.