@article{FrauTascón:31832,
author = "Frau Tascón, María and Verde Arribas, María Teresa and
Pardo Cortinas, María",
title = "{Otitis externas en perros: análisis de los factores
primarios y secundarios implicados en su desarrollo.}",
year = "2015",
note = "External otitis is one of the most common diseases in the
veterinary clinic for small animals, with the highest
incidence in dogs than in cats. The aim of this study is to
identify and analyze the primary and secondary factors, so
as the predisposing and perpetuating factors involved in
the pathogenesis of external otitis of the dog. The study
was performed on clinical cases of otitis treated at the
Dermatology Service of the Hospital of the Faculty of
Veterinary Medicine of Zaragoza. In the study period, 162
dogs were treated of which 40 had otitis and they have been
included in this study. The information for each clinical
case was collected on a technical file which was made
expressly for the study. The data related to the
characteristics of otitis, review and examination of the
patient were included in it. The study of the obtained data
has given the following results. Regarding the breed
factor, the highest incidence occurs in Cockers (20%),
mongrels (15%) and French Bulldogs (12,5%). Referring to
the predisposing factors, the most important is the
conformation of the outer ear pinna detected in 12,5% of
cases. Regarding the primary factors, the three most
important have been: atopy (70%), parasites (50%) and food
hypersensitivity (35%). Secondary factors were analyzed by
cytological exams: cocos were the agents most frequently
observed, presented in 22,5% of dogs with otitis. Finally
the most representative perpetuating factors have been:
chronic pathological changes and epidermal or sebaceous
hyperplasia. The biggest mistake which is made in the
clinical setting is to consider that it is an isolated
entity, when in more than 90% of cases the external otitis
is a further sign of a more or less generalized
dermatological process. To treat and prevent recurrences of
otitis is necessary to analyze carefully the factors
involved in their development (predisposing, primary,
secondary and perpetuating factors).",
}