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Anales del Sistema Sanitario de Navarra

versión impresa ISSN 1137-6627


ECHECHIPIA, S. et al. Epicutaneous test with inhalers in the study of atopic dermatitis. Anales Sis San Navarra [online]. 2003, vol.26, suppl.2, pp.31-37. ISSN 1137-6627.

In some 80% of patients with atopic dermatitis, the presence of specific IgE is found when facing food or environmental allergens. It has also been demonstrated in a sub-group of patients with atopic dermatitis that the dermatitis lesions are exacerbated following the ingestion or inhalation of allergens, and that they improve with reduction of exposure to allergens. Although the prick method and the determination of specific IgE in serum are highly sensitive techniques, epicutaneous tests, applying the allergen directly to the skin, might be the ideal diagnostic method since they reproduce the characteristic inflammatory response of the disease on the affected organ itself, the skin. However, there is great variability in the results obtained through epicutaneous tests with aeroallergens, basically due to methodological differences, which are reviewed in this paper. Finally, we present the results of carrying out epicutaneous tests with inhalant allergens on our patients with atopic dermatitis and controls, where some 27% of positive patches were obtained, basically with acari, and in those patients with more severe dermatitis, without there being complete concordance with the prick technique. For this reason, the epicutaneous test appears to be a method of allergological diagnosis that might be useful and complementary to the routine techniques of the prick method and the determination of specific IgE in serum, but it is in need of suitable standardization.

Palabras clave : Atopic dermatitis; Patch test; Allergen.

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