Testes cutâneos de leitura tardia para alimentos na dermatite atópica de difícil controle
Food atopy patch test in atopic dermatitis with problematic control
Erica R. M. de Almeida Resende; Gisele Barbosa e Silva; Gesmar Rodrigues Silva Segundo
Resumo
Objetivo: Descrever um caso de dermatite atópica de difícil controle e o uso dos testes cutâneos de leitura tardia para alimentos no intuito de auxiliar o manejo do paciente.
Descrição: Lactente do sexo feminino que aos quatro meses de vida iniciou quadro de lesões em rosto e períneo que disseminaram por todo o corpo e não apresentou resposta satisfatória com o uso das medicações habituais. A investigação IgE mediada para alérgenos alimentares foi negativa. Foi realizado o teste cutâneo de leitura tardia para leite, ovo, soja, trigo e milho, que se mostrou positivo para ovo, trigo e milho. Iniciou-se a dieta de exclusão dos alimentos referidos, associada ao tratamento medicamentoso com rápida melhora das lesões. Realizada em seguida a prova de provocação que demonstrou exacerbação das lesões com os alimentos descritos acima.
Comentários: A dermatite atópica é considerada uma doença de padrão misto, IgE e não IgE mediada. Nos casos de difícil controle a utilização dos testes cutâneos de leitura tardia podem ajudar no diagnóstico de alergias alimentares não IgE mediadas e no controle da doença.
Palavras-chave
Abstract
Objective: To describe a case of atopic dermatitis of difficult control and the use of food atopy patch test in order to assist the management of patients.
Description: Female infant who at four months of life developed lesions on her face and perineum that spread throughout the body and did not show a satisfactory response to the use of medications. Search for IgE-mediated food allergens was negative. It was performed the atopy patch test to milk, egg, soy, wheat and corn, which was positive for egg, wheat and corn. She started the food elimination diet mentioned, associated with drug therapy with rapid improvement of the lesions. After that, she accomplished the challenge test which showed exacerbation of lesions with the described foods.
Comments: Atopic dermatitis is considered a disease of mixed pattern, IgE and non IgE mediated. The use of food atopy patch test can help diagnose non-IgE mediated food allergies and to control the disease in cases of difficult control.
Keywords
Referências
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Submetido em:
05/03/2012
Aceito em:
25/07/2012
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