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Issues and unmet needs in pediatric asthma
1University of Aberdeen Medical School, Aberdeen, Scotland, UK. p.j.helms@abdn.ac.uk
Insights
Childhood asthma is rising, posing challenges for diagnosis and treatment. More research is needed to identify children at risk for chronic asthma and guide early interventions.
Area of Science:
- Pediatrics
- Allergy and Immunology
- Respiratory Medicine
Background:
- Childhood asthma prevalence is increasing globally.
- Historical diagnostic approaches for childhood wheezing have evolved.
- Current treatment trends involve early use of topical steroids for presumed chronic inflammation.
Purpose of the Study:
- To address the diagnostic and therapeutic challenges in managing childhood asthma.
- To highlight the need for better methods to identify children at risk of persistent asthma and airway remodeling.
- To explore the role of early intervention with non-steroidal anti-inflammatory drugs.
Main Methods:
- Review of historical and current understanding of childhood asthma.
- Discussion of diagnostic challenges and treatment strategies.
- Emphasis on the lack of predictive screening tools for long-term outcomes.
Main Results:
- Distinguishing between transient wheeze and persistent asthma remains difficult.
- Current approaches may overtreat children with resolving symptoms.
- Effective screening tools for identifying at-risk children are lacking.
Conclusions:
- Accurate identification of children at risk for chronic asthma and airway remodeling is crucial.
- Development of reliable screening methods for atopic sensitization is urgently needed.
- Further research should focus on the optimal role of early non-steroidal interventions.
Abstract:
Asthma is common and becoming more so in childhood. Although mild asthma may incur low average annual costs per child, these estimates need to be viewed in the context of the very large numbers of affected individuals. Whereas asthma and wheezing illness in childhood had in the past been broadly subdivided into asthma (often associated with atopy) and wheezy bronchitis (wheeze only, with associated upper respiratory tract infection), this distinction was lost during the 1970s in view of the demonstrated underdiagnosis and undertreatment of symptomatic school-age children. The acceptance of asthma as a chronic inflammatory disease and evidence for airway remodeling and progressive deterioration in airway function in association with symptoms and atopy have led to earlier use of topical steroids at higher starting doses delivered by improved age-appropriate devices. Treating all children as if they were destined to become atopic asthmatics and at risk of airway remodeling may not be rational, particularly in those whose symptoms will subsequently resolve. However, there are as yet no screening tests which can clearly identify individuals at risk of long-term chronic airway inflammation and airway remodeling. The large number of infants and young children with current symptoms suggestive of asthma and in whom resolution is likely in the majority poses problems for the clinician in deciding the best initial therapy. There is an urgent need to develop simple and reliable measures that can identify the early manifestations of atopic airway sensitisation and to establish the place of early intervention with nonsteroidal drugs, including leukotriene antigonists.