EVALUATION OF GRASS POLLEN SENSITIZATION WITH PRICK TEST IN DOGS WITH ATOPIC DERMATITIS

Ana Paula dos Santos Cerdeiro* Gisele Vieira Sechi*
Victor Espírito Santo Cunha** Marconi Rodrigues de Farias*

* School of Life Sciences, Pontifical Catholic University of Parana - PUCPR ** FDA Allergenics

Background. The atopic dermatitis (AD) is an inflammatory, pruritic, genetic and chronic disease associated with skin barrier failure and cutaneous hyperactivity mainly to environmental allergens. The most commonly tests used to evaluate allergic sensitization in dogs with AD are intradermal test (IDT) and serological. The aim of this study was to identify grass pollen sensitization with prick test in dogs with AD and to compare with IDT. Methods. The diagnosis was based on exclusion of other pruritic dermatopathies and which signaled at least 6 of 8 criteria established by Favrot et al. (2010). Initially, 10 healthy dogs were used to evaluate the specificity of prick test and IDT (Group 1). Then, 39 dogs with diagnosis of AD were submitted simultaneously to prick test and IDT to Lolium multiflorum, Cynodon dactylon and Paspalum notatum (Group 2). Results. All dogs in Group 1 were negative in the prick test and IDT in the concentration of 10.000 UBE/mL and 100 UBE/ml, respectively. Sensitization in Group 2 was observed in 10 (25,6%) dogs, 7(70%) positive for Cynodon dactylon and Lolium multiflorum each and 3 (30%) for Paspalum notatum in prick test. All dogs of Group 2 were negative to grass pollen in IDT. Conclusion. Prick test had the same specificity as IDT and was able to identify more sensitization to grass pollen in dogs with AD, showing to be a good alternative to conventional allergic tests.

APRESENTADO DURANTE O CONGRESSO LATINO-AMERICANO DE DERMATOLOGIA VETERINÁRIA EM MERIDA, MÉXICO, 2018.