Checking Breathing Effort During Daily Tasks After Lung Valve Treatment
Studies how daily activities affect breathing effort in people with emphysema receiving lung valves.
Plain-language title generated from the registry record
Registry title: Change in Task-related Oxygen Uptake After EBV Treatment
Key facts
- Where
- Groningen, NetherlandsSee the site
Where in Netherlands
- University Medical Center GroningenGroningen, NetherlandsTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- University Medical Center Groningen
- Trial code
- NCT06702072
- Record updated
- 29 April 2026
- Original description
Rationale: Bronchoscopic lung volume reduction using endobronchial valves (EBV) has emerged as a viable treatment option for eligible patients with severe emphysema. In all studies conducted so far, exercise capacity has only been measured using the 6-minute walk distance test (6MWT). It is known that patients with COPD frequently experience problems during ADL, which can lead to avoidance of or care dependency for performing certain tasks and have a significant social impact on their lives.Read full original descriptionShow less
Change in Task-related Oxygen Uptake After Bronchoscopic Lung Volume Reduction With Endobronchial Valves
Rationale: Bronchoscopic lung volume reduction using endobronchial valves (EBV) has emerged as a viable treatment option for eligible patients with severe emphysema. In all studies conducted so far, exercise capacity has only been measured using the 6-minute walk distance test (6MWT). It is known that patients with COPD frequently experience problems during ADL, which can lead to avoidance of or care dependency for performing certain tasks and have a significant social impact on their lives.
Patients report that it is easier to perform ADLs after EBV treatment. Previously it was found that it was easier for patient to perform these activities after the EBV treatment. However, the physiological load during these ADLs has never been investigated before.
Potentially, EBV treatment could improve the metabolic load and consequently symptom perception, thus enhancing the execution of ADLs, which is an important patient-centred outcome. However, this has not been investigated so far.
Objective: To investigate the change in exercise physiology during daily activities after EBV treatment.
Study design: Observational study in which the study population will be asked to perform some additional test during regular visits for the bronchoscopic lung volume reduction treatment with valves.
Study population: Patients with emphysema who are scheduled for a bronchoscopic lung volume reduction treatment using endobronchial valves.
Intervention: Not applicable Main study parameters: The change in task-related oxygen uptake measured with a mobile oxygen device during activities of daily life 6 months after EBV treatment.
Inclusion: Patient is scheduled for a bronchoscopic lung volume treatment using Pulmonx Zephyr Endobronchial Valves; Patient read, understood and signed the Informed Consent Form.
Exclusion: Patients who cannot perform ADL activities without the use of Long Term Oxygen Therapy (LTOT).