Obstructive Airway Diseases
Conditions
Brief summary
Investigating nasal muco-ciliary clearance by scintigraphy
Detailed description
The velocity and the retention of the nasal muco-ciliary clearance is going to be investigated with a salt particle inhaler and a placebo by the method nasal scintigraphy. The hypotheses is that nasal inhalation of salt particles enhance the nasal mucociliary clearance.
Interventions
Inhalation from inhaler with (active) or without (placebo) content
Sponsors
Study design
Eligibility
Inclusion criteria
* COPD patients (all severities in chronic, stable condition) * Asthma patients (in stable condition without acute asthma symptoms) * Healthy subjects, incl. smokers (no chronic nasal, upper or lower respiratory diseases)
Exclusion criteria
* Age under 18 years * Upper respiratory tract infection / cold within the last 3 weeks and at least 3 weeks must pass from the person has become well to the examination * Allergic / non-allergic rhinitis (hay fever) * Chronic sinusitis * Acute respiratory tract infection in antibiotic therapy * Applied salt inhalation within the past month * Pregnant or breastfeeding women * Nuclear medical examination within the past month * Cannot taste saccharin
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Nasal Mucociliary Clearance | At study day 1 and 2 | Change in nasal mucociliary clearance velocity (mm/min) from placebo to salt inhalation |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Spirometry | At the beginning and the end of study day 1 and 2 | Change in FEV! from placebo to saltinhalation |
| Saccharin test | At study day 1 and 2 | Change in time for saccharin transport |
Countries
Denmark