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Novel severe wheezy young children phenotypes: boys atopic multiple-trigger and girls nonatopic uncontrolled wheeze

Jocelyne Just1, Rahele Gouvis-Echraghi, Remy Couderc

  • 1Centre de l'Asthme et des Allergies, Groupe Hospitalier Trousseau-La Roche Guyon, University Paris 06, Paris, France. jocelyne.just@trs.aphp.fr

The Journal of Allergy and Clinical Immunology
|April 17, 2012
PubMed

Insights

Infants with recurrent wheezing can be classified into three distinct phenotypes: mild episodic viral wheeze, nonatopic uncontrolled wheeze, and atopic multiple-trigger wheeze. Identifying these phenotypes aids in understanding early-onset asthma and guiding treatment strategies.

Area of Science:

  • Pediatric Pulmonology
  • Allergy and Immunology
  • Asthma Research

Background:

  • Recurrent wheezing in infancy is a complex condition often linked to early-onset asthma.
  • Understanding the heterogeneity of infantile wheezing is crucial for effective management.

Purpose of the Study:

  • To identify distinct phenotypes of severe recurrent wheezing in infants.
  • To explore potential therapeutic approaches for each identified phenotype.

Main Methods:

  • Cluster analysis was performed on 551 children under 36 months with active asthma.
  • Twenty clinical and laboratory variables were utilized in the analysis.
  • The Trousseau Asthma Program provided the study cohort.

Main Results:

  • Three independent clusters were identified: mild episodic viral wheeze (n=327), nonatopic uncontrolled wheeze (n=157), and atopic multiple-trigger wheeze (n=67).
  • Specific characteristics differentiated the clusters, including triggers, disease severity, atopic markers (IgE, eczema), and environmental factors (overcrowding, pests, day-care).
  • Predictive parameters for gender-specific cluster classification were identified.

Conclusions:

  • Cluster analysis successfully differentiated phenotypes of recurrent wheezing in young children.
  • These identified phenotypes necessitate further validation through longitudinal studies.
  • The findings provide a basis for phenotype-specific management of infantile wheezing.
Abstract

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