1. Repositório Institucional - Universidade Federal de Uberlândia
2. Faculdade de Medicina (FAMED)
3. TCR - Ciências Veterinárias

ORCID:	http://orcid.org/0000-0003-3970-7444
Document type:	Trabalho de Conclusão de Residência
Access type:	Acesso Aberto
Embargo Date:	2024-02-10
Title:	Etiologia, perfil de sensibilidade antimicrobiana e aspectos 2 epidemiológicos de amostras otológicas de cães com otite 3 recebidas no Ladoc no período de 2019 a 2021
Author:	Santos, Leticia Silva
First Advisor:	João, Carolina Franchi
First member of the Committee:	Lima, Anna Monteiro Correia
Second member of the Committee:	Rezende, Rodrigo Supranzetti de
Summary:	External Otitis are inflammation of the epithelia that covers the hearing conduct and figure amongst the most frequently reported diseases in pet animals admitted in veterinary hospitals all over the world. They can be caused by very diverse etiologic agents. Such diseases can be painful and itchy, causing inconvenience to animals and even causing hearing loss. Based on such clinical and epidemiological relevance, the present research aimed to elaborate a retrospective study of the ear samples of canines with otitis taken by the LADOC, analyzing the most frequently isolated micro-organisms and its antimicrobial resistance. Materials, Methods & Results: 42 clinical and laboratory records from canine patients presenting bacterial otitis to which had samples sent for culture and antibiogram tests ate the Laboratory of Infectocontagious Diseases of the Federal University of Uberlândia (LADOC-UFU) between October 2019 and October 2021 were analyzed. The samples were collected through ear swabs were collected submitted to cytology protocols using PAS staining. Bacterial culture, Gram staining and biochemical and oxidase tests were performed according with ANVISA protocols, as long as antimicrobial sensibility tests by Kirby-Bauer disc-diffusion method and the results were interpreted based on standard rates established by CLSI. In total, 42 dogs were evaluated, 23 of such being females and 19 males. Amongst such canines, 18 females and 14 males presented bacterial growth, summing up to 33 positive samples. There wasn’t significant difference between the sexes. 49% of the isolates were from dogs with large pendant ears, 6 from dogs with no specification of ear shape and 5 in semi erect ears; other shapes only presented 1 or 2 cases. There was greater prevalence of otitis in animals aged over 9 years old (33,33%). Mixed-breed dogs corresponded to 30,3% of all cases. Most of the infections were monomicrobial (59,57%). The most frequently found organism bacterial genre was Staphylococcus spp. (65,21%). Staphylococcus’s isolates were submitted to antimicrobial sensibility test and presented more than 60% sensibility to Ceftriaxone, Florphenicol, Polymyxin B, Neomycin, Amikacin, Amoxicillin + Clavulanate, Gentamicin and Cephalexin. Marbofloxacin and Tobramicin presented 58,33% sensibility each. Azithromycin, Clindamycin and Chloramphenicol presented 100% resistance and Enrofloxacyn presented 50%. Discussion: The results found are compatible with those observed in the scientific literature for the non-correlation between otitis and gender, as much as for the greater predisposition of pendant ears to develop such diseases, and also for the more frequent observation of otitis in mix-breed dogs. The microbiota predominantly formed for Staphylococcus is also very well described in the scientific literature. In what concerns the age, there is not uniformity in the literature results, with some authors indicating greater otitis prevalence amongst elderly dogs and others observing superior frequency amongst animals under the age of three. The great heterogeneity of resistance profiles for Staphylococcus spp. in different locations reinforce the necessity of performing culture and antibiogram tests in order to choose the best possible therapy for each patient. Therefore, the present study has made possible to elaborate a valid contribution for epidemiological vigilance of canine otitis, a disease with such clinical importance and high casuistry, allowing to better understand the profile of bacterial isolates involved in the ear infections affecting the animals of one of the greatest cities in the state of Minas Gerais.
Keywords:	Antimicrobials Canine Epidemiology Staphylococcus
Area (s) of CNPq:	CNPQ::CIENCIAS AGRARIAS
Language:	por
Country:	Brasil
Publisher:	Universidade Federal de Uberlândia
Quote:	SANTOS, Letícia Silva. Etiologia, perfil de sensibilidade antimicrobiana e aspectos epidemiológicos de amostras otológicas de cães com otite recebidas no LADOC no período de 2019 a 2021. 2022. 15 f. Trabalho de Conclusão de Residência (Residência em Medicina Veterinária) - Universidade Federal de Uberlândia, Uberlândia, 2022.
URI:	https://repositorio.ufu.br/handle/123456789/34157
Date of defense:	10-Feb-2022
Appears in Collections:	TCR - Ciências Veterinárias

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