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Irreversible airway obstruction in childhood asthma? A clinician's viewpoint

Peter König1

  • 1Division of Pediatric Pulmonary/Allergy, University of Missouri-Columbia, One Hospital Drive, Room M668, Columbia, MO 65212, USA. KonigP@health.missouri.edu

Pediatric Pulmonology
|March 29, 2002
PubMed

Insights

Childhood asthma typically involves reversible airway obstruction. However, some children develop irreversible obstruction, potentially due to inflammation and airway remodeling, necessitating further research into small airway obstruction.

Area of Science:

  • Pediatric Pulmonology
  • Respiratory Medicine
  • Asthma Research

Background:

  • Childhood asthma is often characterized by reversible airway obstruction.
  • However, some children may develop irreversible airway obstruction, possibly linked to airway remodeling from inflammation.
  • Concerns exist regarding progressive irreversible obstruction in untreated asthma patients.

Purpose of the Study:

  • To evaluate the development of progressive irreversible airway obstruction in children with asthma.
  • To investigate factors contributing to pulmonary function deterioration in pediatric asthma.
  • To highlight the need for further research into small airway obstruction in childhood asthma.

Main Methods:

  • Review of existing studies on childhood asthma and airway obstruction.
  • Analysis of findings from the Childhood Asthma Management Program (CAMP) study, a randomized placebo-controlled trial.
  • Focus on pulmonary function tests, particularly forced expiratory volume in 1 sec (FEV(1)).

Main Results:

  • The CAMP study did not demonstrate progressive irreversible airway obstruction in pediatric asthma patients.
  • Pulmonary function deterioration occurs in some children, potentially linked to insufficient anti-inflammatory treatment or adrenergic therapy.
  • Previous research predominantly focused on large airway obstruction (FEV(1)).

Conclusions:

  • Progressive irreversible airway obstruction is not a universal outcome in childhood asthma, contrary to some claims.
  • Inadequate anti-inflammatory treatment and possibly maintenance adrenergic treatment may contribute to pulmonary function decline.
  • Further investigation into small airway obstruction in pediatric asthma is warranted.

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