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Revista de la Facultad de Medicina Veterinaria y de Zootecnia
Print version ISSN 0120-2952
Abstract
DUQUE, M.; URIBE, N. and BUITRAGC, J.. Patterns of resistance in bacterial agents involved in canine otitis at Medellín, Colombia, during 2019: retrospective analysis. Rev. Med. Vet. Zoot. [online]. 2021, vol.68, n.3, pp.212-222. Epub June 09, 2022. ISSN 0120-2952. https://doi.org/10.15446/rfmvz.v68n3.99927.
Among the pathogens in bacterial otic processes, microorganisms such as Staphylococcus pseudintermedius, Pseudomona auriginosa, Proteus mirabilis, Escherichia coli, Corynebac-terium spp., Enterococcus spp., and Streptococcus spp. stand out, for which resistance to antibiotics has been described employed to combat them. In Colombia there are few reports about the antibiotic resistance of microorganisms that cause otitis. For that reason, the purpose of this study was to determine the bacterial agents most frequently isolated from canine ear infections and their resistance to antibiotics from samples of ear secretions sent to a veterinary laboratory in Medellín during 2019. In order to do that, an cross-sectional, retrospective descriptive study was done. The results of the antibiograms performed from bacterial cultures obtained from ear samples sent to a reference laboratory in the city of Medellín were analyzed. A frequency analysis was carried out for the total sample. It was found that the main isolated bacterial microorganisms were Staphylococcus pseudintermedius, Pseudomona auriginosa, Proteus mirabili and Staphylococcus aureus. Gentamicin was the drug with the highest percentage of resistance and cephalexin the one with the least resistance. It was possible to conclude that Staphylococcus pseudintermedius is linked in more than 60% of cases of bacterial otitis and the resistance presented by microorganisms varies over time. The group of aminoglycosides antibiotics was the one which microorganisms are manifesting more percentage of resistance.
Keywords : bacteria; ear canal; microbial drug resistance; dogs.