Jornal de Pediatria (Jun 2004)

Phadiatop® no diagnóstico de alergia respiratória em crianças: Projeto Alergia (PROAL) Phadiatop® in the diagnosis of respiratory allergy in children: Allergy Project - PROAL

  • Charles K. Naspitz,
  • Dirceu Solé,
  • Maria Cecília Aguiar,
  • Maria Letícia Chavarria,
  • Nelson Rosário Filho,
  • Antônio Zuliani,
  • Eliana C. Toledo,
  • Bruno A. P. Barreto,
  • Leda S. F. Souza

DOI
https://doi.org/10.1590/S0021-75572004000400010
Journal volume & issue
Vol. 80, no. 3
pp. 217 – 222

Abstract

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OBJETIVO: Avaliar a positividade do Phadiatop® em crianças acompanhadas em serviços brasileiros de alergologia e compará-la aos resultados de IgE sérica específica a alérgenos inalantes e alimentares. CASUÍSTICA E MÉTODO: Em 457 crianças acompanhadas em serviços de alergia pediátrica e um grupo de crianças controle não-alérgicas (n = 62), distribuídas em cinco faixas etárias, foram determinados em amostra de soro: Phadiatop® e IgE específica (RAST) a alérgenos inalantes e alimentares (UniCAP - Pharmacia®). RESULTADOS: O Phadiatop® foi positivo em 305 crianças atópicas (67,6%) e em 25,8% das controles (p OBJECTIVES: To evaluate the positivity of Phadiatop® in children from several Brazilian pediatric allergology centers and to compare its results with the presence of serum specific IgE to inhalant and food allergens. PATIENTS AND METHOD: Phadiatop® and serum specific IgE levels (RAST) to inhalant and food allergens (UniCAP - Pharmacia®) were measured in 457 children from several pediatric allergy centers and in a non-allergic control group (n = 62), distributed across five age groups. RESULTS: Phadiatop was positive in 305 atopic children (67.6%) and in 25.8% of controls (p < 0.001). Among atopic children the distribution of positive test varied according to age: 7.9% (24/305) among under 2 year-olds, 15.4% (47/305) in 2 to 3 year-olds, 22% (67/305) in 3 to 4 year-olds, 19.3% (59/305) in 4 to 5 year-olds and 35.4% (108/305) in 5 to 12 year-olds. No concordance between food allergens and Phadiatop® was observed. Analysis of the relationship between positive inhaled allergen RASTs and positive Phadiatop® showed best indices with house dust mites (D. pteronyssinus, D. farinae and Blomia tropicalis). CONCLUSIONS: Phadiatop® is a useful tool for diagnosing domestic mite allergy.

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