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[Ion generators and bronchial asthma. A double-blind placebo controlled study]
K R Larsen1, O T Olsen, I L Jarnvig
1Medicinsk/lungemedicinsk afdeling Y, Amtssygehuset i Gentofte.
Ugeskrift for Laeger
|October 10, 1994
Summary
Air ionization therapy for asthma bronchiale showed no benefits in a double-blind study. Researchers found no significant differences in peak flow or symptoms, advising against this asthma treatment.
Area of Science:
- Pulmonology
- Environmental Health
- Medical Device Technology
Background:
- Asthma bronchiale is a chronic respiratory condition affecting millions worldwide.
- Environmental factors are known to influence asthma symptoms and exacerbations.
- Air ionization devices are proposed as a potential therapeutic intervention for respiratory conditions.
Purpose of the Study:
- To evaluate the efficacy of environmental air ionization as a therapeutic approach for stable, reversible asthma bronchiale.
- To determine if active air ionization significantly improves asthma control compared to a placebo.
Main Methods:
- A double-blind, placebo-controlled study involving 19 adult patients with stable asthma.
- Patients were randomized to receive either an active air ionization device or an inactive placebo device for four weeks.
- Following the initial treatment period, patients switched to the alternative device for another four weeks.
- Daily measurements included peak expiratory flow rate (PEFR), symptom scores, medication usage, and spirometry.
Main Results:
- No statistically significant differences were observed in daily peak flow measurements between the active ionization period and the placebo period.
- Symptom scores and the use of asthma medication remained comparable across both treatment phases.
- Spirometry results did not show any improvement attributable to the air ionization therapy.
Conclusions:
- Environmental air ionization therapy does not appear to be an effective treatment for patients with bronchial asthma.
- Based on the study's findings, this therapeutic approach is not recommended for managing asthma bronchiale.
- Further research may be warranted to explore other environmental interventions or specific patient subgroups.