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Allergic bronchopulmonary aspergillosis.

I Tillie-Leblond1, A-B Tonnel

  • 1Department of Pulmonology and Immuno-Allergology, University Hospital of Lille, Lille, France.

Allergy
|June 23, 2005
PubMed
Summary

Allergic bronchopulmonary aspergillosis (ABPA) is a hypersensitivity disorder in non-immunocompromised patients. Diagnosis requires clinical, biological, and radiological criteria, with treatment involving corticosteroids and itraconazole.

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Area of Science:

  • Pulmonology
  • Immunology
  • Allergy

Background:

  • Allergic bronchopulmonary aspergillosis (ABPA) is a hypersensitivity disorder affecting non-immunocompromised individuals.
  • It is induced by Aspergillus and linked to genetic factors and bronchial epithelial cell activation in asthma or cystic fibrosis.
  • Pathogenesis involves CD4+ Th2 lymphocyte activation and the production of specific antibodies (IgE, IgG, IgA-AF).

Purpose of the Study:

  • To outline the diagnostic criteria for ABPA.
  • To describe the factors influencing disease severity.
  • To detail current treatment recommendations for ABPA.

Main Methods:

  • Diagnosis relies on a combination of clinical, biological, and radiological findings.
  • Disease severity is assessed based on the presence of corticosteroid-dependent asthma and/or diffuse bronchiectasis with fibrosis.
  • Treatment protocols involve oral corticosteroids for acute phases and itraconazole for extended periods.

Main Results:

  • ABPA diagnosis is established through integrated clinical, biological, and radiological assessments.
  • Severe cases are characterized by corticosteroid-dependent asthma or significant bronchiectasis and fibrosis.
  • Effective treatment combines short-term corticosteroids with a 16-week course of itraconazole.

Conclusions:

  • ABPA is a distinct hypersensitivity disorder requiring a multi-faceted diagnostic approach.
  • Disease severity correlates with specific clinical and radiological manifestations.
  • Current therapeutic strategies emphasize a combination of corticosteroids and the antifungal agent itraconazole for optimal management.

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