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Bronchial hyperresponsiveness and asthma in the paediatric population
1Pediatric Immunoallergology Center, Former Head of the Department of Pediatric Immunoallergology, Clínic Hospital - Sant Joan de Déu Hospital, Faculty of Medicine, University of Barcelona.
Allergologia Et Immunopathologia
|March 16, 2013
Summary
The intensity of bronchial hyperresponsiveness (BHR) did not correlate with patient age, IgE levels, or family history in children with asthma. Therefore, BHR intensity is not a reliable indicator for predicting asthma prognosis or phenotype.
Area of Science:
- Pediatric Pulmonology
- Allergy and Immunology
- Respiratory Medicine
Background:
- Bronchial hyperresponsiveness (BHR) is a key feature of asthma.
- Understanding factors influencing BHR intensity is crucial for asthma management and prognosis.
- Previous studies have explored correlations between BHR and various clinical parameters.
Purpose of the Study:
- To investigate the correlation between BHR intensity and clinical data in pediatric asthma patients.
- To assess the potential of BHR intensity in establishing asthma prognosis or phenotype.
- To examine the relationship between BHR, age at onset, serum IgE, and familial atopic history.
Main Methods:
- Methacholine provocation test used to evaluate BHR in 138 children and adolescents (up to 18 years).
- Patients categorized into six groups based on methacholine required for PD20.
- Analysis included comparison between patients with and without a family history of atopic disease.
Main Results:
- No significant differences in age at asthma onset or serum IgE levels were observed across varying BHR intensities.
- No significant differences were found in these parameters between patients with and without a family history of atopic disease.
- The study found no correlation between BHR intensity and the examined clinical or genetic factors.
Conclusions:
- BHR intensity is not a valid parameter for establishing a prognosis or phenotype in pediatric asthma.
- BHR intensity can, however, be utilized as a measure of asthma severity.
- Further research may be needed to identify other reliable prognostic markers for pediatric asthma.
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