
Realizou-se um estudo retro e prospectivo em 117 cães com prontuários suspeitos de apresentarem hipersensibilidade alimentar. Os animais foram distribuídos em dois grupos: os do grupo I (n=86) foram atendidos em 1993 e 1994 e os do grupo II (n=31) em 1995. Os cães de ambos os grupos foram caracterizados quanto aos aspectos epidemiológicos e clínicos. Os do grupo II foram submetidos a exames complementares para a diferenciação diagnóstica do prurido, incluindo: hemograma, micológico e parasitológico cutâneo, coproparasitológico, histológico de pele e sorológicos - RAST (radioimunoensaio) e ELISA (ensaio imunoenzimático) - ambos para determinação de IgE contra antígenos alimentares -, e ao exame da dieta de eliminação seguida pela exposição provocativa. Este último exame foi o mais confiável para o estabelecimento do diagnóstico, ao determinar que 20 cães, provenientes de ambos os grupos, eram alérgicos a alimentos. Pelos RAST e ELISA, não foi possível demonstrar resultados confiáveis quando comparados aos resultados com a dieta de eliminação. Os animais acometidos foram principalmente machos, com raça definida e na faixa etária de um a seis anos. Os principais alimentos incriminados foram a carne bovina, o arroz e a carne de frango.From 1993 to 1995, 117 cases of dogs suspected of food hypersensitivity were reviewed and analyzed. The animals were distributed in two groups: group I included 86 dogs assisted in the first two years of the study; and group II included 31 dogs that were observed in 1995. Dogs from both groups were characterized according to clinical and epidemiological aspects. Animals from group II were also submitted to exams in order to eliminate other similar causes of pruritus and to establish the diagnosis of food hypersensitivity, including complete blood counting, fungal culture, skin scraping, fecal exam, skin histopathology, and RAST and ELISA (both for the detection of serum IgE against food allergens), as well as test of elimination diet followed by provocative exposure. Elimination diet test proved to be the most reliable tool for definitive diagnosis of food allergy, considering 20 dogs from both groups. It was possible to conclude that male pure bred dogs from one to six-year-old were most affected and RAST and ELISA were not reliable tests for the diagnosis. The most incriminated foods were beef, rice, and chicken.
dermatology, food allergy, cão, dog, alergia alimentar, dermatologia, SF1-1100, Animal culture
dermatology, food allergy, cão, dog, alergia alimentar, dermatologia, SF1-1100, Animal culture
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