O presente trabalho avaliou a microbiota do ouvido médio e os perfis de susceptibilidade a antimicrobianos de cepas isoladas de cães com otite média. Um total de 62 cães obtidos no Centro de Controle de Zoonoses de Fortaleza Ceará / Brasil foram estudados no período de 10 meses (agosto/2003 a junho/2004). Do total de animais, 46.8% (n=30) foram positivos para otite media e a infecção envolvida era monomicrobiana em 76,6% dos casos. Os agentes isolados com maior frequência foram Staphylococcus coagulase-positiva (CPS-55%) e Pseudomonas sp (10%). Considerando-se S. intermedius (n=13) e S. aureus subsp aureus (n=9), respectivamente, as mais elevadas taxas resistência foram observadas frente a: penicilina G (30,76% e 44,44%), ampicilina (7,69% e 44,44%), eritromicina (23,07% e 44,44%), clindamicina (23,07% e 44,44%) e trimetropim/sulfametoxazol (15,38% e 33,33%).
This study evaluated the middle ear microbiota and antimicrobial susceptibility patterns from strains isolated from dogs with otitis media. A total of 62 dogs obtained from Zoonoses Control Center of Fortaleza City Ceará State / Brazil were studied over a 10-month period (August/2003 to June/2004). Of the total, 46.8% (n=30) of the animals were positive for otitis media and the infection was monomicrobial in 76.6% of them. The most frequent isolated agents were coagulase-positive Staphylococci (CPS-55%) and Pseudomonas sp (10%). For S. intermedius (n=13) and S. aureus subsp aureus (n=9), respectively, the greater resistance rates were observed using penicillin G (30.76% and 44.44%), ampicillin (7.69% and 44.44%), erythromycin (23.07% and 44.44%), clindamycin (23.07% and 44.44%) and thrimethropim/sulfamethoxazol (15.38% and 33.33%).
