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[Procedure for bronchodynamic tests with inhaled allergens].

J J Sienra Monge1, B E del Río Navarro, M A Rosas Vargas

  • 1Hospital Infantil de México Federico Gómez, México, DF. jjsienra@data.net.com

Revista Alergia Mexico (Tecamachalco, Puebla, Mexico : 1993)
|June 29, 2000
PubMed
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Pediatric asthma, a common chronic condition, involves airway hyperreactivity. Bronchodynamic testing with standardized allergens helps diagnose functional issues in children, ensuring patient safety with specialized personnel.

Area of Science:

  • Pediatric Pulmonology
  • Allergy and Immunology

Context:

  • Asthma is a prevalent chronic respiratory illness in children.
  • It is defined by airway hyperreactivity to various stimuli, including allergens and nonspecific agents like methacholine and histamine.

Purpose:

  • To outline the diagnostic utility of bronchodynamic tests in pediatric asthma.
  • To detail the methodology for performing allergen challenges to assess bronchial hyperresponsiveness.

Summary:

  • Bronchodynamic tests, specifically allergen challenges, are crucial for diagnosing functional impairments in pediatric asthma.
  • These tests involve administering standardized, high-quality antigenic extracts incrementally until a 15% or greater decrease in Forced Expiratory Volume in 1 second (FEV-1) is observed.
  • Utilizing either open or closed circuits with a dosimeter, the initial allergen dose is lower than that eliciting a positive skin test.

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Impact:

  • Accurate diagnosis of functional deficits in pediatric asthma.
  • Standardized testing protocols ensure reliable assessment of bronchial hyperresponsiveness.
  • Emphasizes the critical need for specialized personnel and patient safety during these procedures.