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Title: Fluticasone propionate and bronchial hyperresponsiveness in childhood asthma
Authors: Chalerat Direkwattanachai
Kobkul Limkittikul
Chittima Kraisarin
Cherapat Sasisakulporn
Suwat Benjaponpitak
Mahidol University
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-Jun-1999
Citation: Asian Pacific Journal of Allergy and Immunology. Vol.17, No.2 (1999), 63-67
Abstract: Bronchial asthma is now agreed as being a chronic inflammatory disease of the airways. Inhaled steroids are widely accepted as a preventive medication in asthmatic patients of all ages and severity. However, the optimal use of inhaled steroids and the important issue of safety and efficacy still remain of concern, particularly in children. Recently, fluticasone propionate (FP) has been developed for use as an inhaled preparation for the treatment of asthma. Because of its high topical potency and increased lipophilicity, it is claimed that FP has an improved risk/benefit compared with other inhaled steroids. In order to evaluate the use of FP in children, we have studied the efficacy of high dose FP (500 μg/day) in asthmatic children. Thirteen children (9 boys and 4 girls), aged 7-17 years (10.8 ± 2.6), were instructed to use a pressurized metered-dose inhaler connected to a Volumetric® spacer. The standard methacholine bronchial challenge test was used as a principal outcome parameter. The PD20, a cumulative dose of methacholine inducing a 20% decrease in FEV1, was measured pre- and post-treatment with inhaled FP. After 4 weeks of FP, PD20significantly increased from 21.6 ± 14.3 inhalation unit to 106.6 ± 78.5 inhalation unit (4.9 fold, p = 0.004) reflecting the improvement of airway reactivity. All subjects improved clinically. These results demonstrate that the anti-inflammatory action of FP 500 μg a day for four weeks can markedly reduce bronchial hyperresponsiveness, the basic physiologic abnormality in bronchial asthma.
ISSN: 0125877X
Appears in Collections:Scopus 1991-2000

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