Abstract
The aim of the study was to determine the incidence of different types of hypersensitivity disorders in dogs in the region of North Eastern Bohemia in the period of 1994 - 2005. In total 150 dogs were included in the study based on suspected hypersensitivity reaction. The incidence of hypersensitivity disorders in the broadly selected group of patients with dermatological problems was 3.5%. The most common diagnosis was atopic dermatitis (94 cases) followed by flea allergy dermatitis (80 cases) and food hypersensitivity (18 cases). In terms of breed predilection, the highest number of hypersensitivity cases were Boxers (100%) and French bulldogs (92.3%) which is significantly higher proportion (p < 0.05) compared to Shar-Peis (50%) and significantly even higher proportion (p < 0.01) compared to other breeds. In relation to age and sex, no significant differences were observed in incidence of hypersensitivity disorders. Canine atopic dermatitis and flea allergy dermatitis were most commonly diagnosed between 6 months and 3 years of age. Sex predilection was not observed in any of the hypersensitivity reactions. Hormonal hypersensitivity was diagnosed in 4 patients over 6 years of age. Angioedema, rash and insect bite hypersensitivity was diagnosed in 8 acute cases where fast recovery was observed after institution of appropriate therapy.
Highlights
The aim of the study was to determine the incidence of different types of hypersensitivity disorders in dogs in the region of North Eastern Bohemia in the period of 1994 - 2005
Canine atopic dermatitis and flea allergy dermatitis were most commonly diagnosed between 6 months and 3 years of age
Canine atopic dermatitis is usually diagnosed in patients from 6 months to 3 years of age, but its clinical signs were observed in animals under 6 months and over 7 years of age (Nesbitt et al 1984; Griffin 1993; Scott et al 1995; Saridomichelakis et al 1999)
Summary
The aim of the study was to determine the incidence of different types of hypersensitivity disorders in dogs in the region of North Eastern Bohemia in the period of 1994 - 2005. In relation to age and sex, no significant differences were observed in incidence of hypersensitivity disorders. Sex predilection was not observed in any of the hypersensitivity reactions. Hypersensitivity reactions belong to the group of immune disorders They represent an overreaction to allergens from the external environment produced by protective systems of the body. Incidence of hypersensitivity disorders in canine population, most frequently represented by atopic dermatitis, reaches about 10% (Scott et al 2001) and as in human population, further increase is expected. Canine atopic dermatitis is usually diagnosed in patients from 6 months to 3 years of age, but its clinical signs were observed in animals under 6 months and over 7 years of age (Nesbitt et al 1984; Griffin 1993; Scott et al 1995; Saridomichelakis et al 1999). According to some authors there is no sex predilection for atopic dermatitis (Willemse and van den Brom 1983; Carlotti and Costargent 1994; Saridomichelakis et al 1999), one study
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