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[Difficult asthma in children]

C Iliescu1, I Tillie-Leblond, A Deschildre

  • 1Service de pneumologie et d'immunoallergologie, CHRU, Lille, France.

Archives De Pediatrie : Organe Officiel De La Societe Francaise De Pediatrie
|January 22, 2003
PubMed

Insights

Difficult asthma in children involves persistent symptoms or airway obstruction despite standard treatments. Understanding its underlying pathology is crucial for effective, specialized management strategies.

Area of Science:

  • Pediatric Pulmonology
  • Asthma Pathophysiology
  • Airway Inflammation

Context:

  • Difficult asthma in children is characterized by persistent exacerbations or symptoms requiring frequent rescue bronchodilators, or ongoing airway obstruction.
  • This condition persists despite high-dose inhaled corticosteroids (>/= 800 microg/d beclomethasone equivalent) and long-acting beta-2 agonists.
  • Initial management involves differentiating true difficult asthma from conditions mimicking asthma, poor treatment compliance, or avoidable exacerbating factors.

Purpose:

  • To define difficult asthma in children and outline current management approaches.
  • To highlight the unknown pathological bases of genuine difficult asthma.
  • To emphasize the need for specialized care, including airway inflammation evaluation.

Summary:

  • Difficult asthma is defined by persistent symptoms or obstruction despite optimal medical therapy.
  • Management requires ruling out mimics, poor compliance, and environmental triggers.
  • Genuine difficult asthma's pathophysiology, involving cellular patterns (eosinophilic, neutrophilic) and airway remodeling, remains unclear.
  • Specialized care, including airway inflammation assessment via bronchoalveolar lavage and biopsies, is essential.

Impact:

  • Improved understanding of difficult asthma's underlying mechanisms.
  • Development of targeted therapies for pediatric difficult asthma.
  • Enhanced diagnostic and management strategies for clinicians treating severe pediatric asthma cases.

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