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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Avaliação e tratamento da otite externa canina / Avaliação e tratamento da otite externa canina

MUELLER, Eduardo Negri 27 February 2009 (has links)
Made available in DSpace on 2014-08-20T14:37:57Z (GMT). No. of bitstreams: 1 dissertacao_eduardo_negri.pdf: 3971714 bytes, checksum: 63cf711c12a26111d352960e989f0624 (MD5) Previous issue date: 2009-02-27 / The goals of this study were to relate cases of ceruminous and purulent external otitis canine in relation to age and breed of the dog, clinical evolution, ear conformation, clinical and microbiological findings; evaluate the effect of topical therapy associated to ceruminolytics in ears with ceruminous external otitis and, evaluate the effect of the ear flushing in ears with purulent external otitis. The ears were evaluated by type of secretion in ceruminous (OC) or purulent (OP). For the treatment of ceruminous external otitis 40 ears were divided in groups A and B, with group A being treated with ceruminolytic and ear solution, and B only with ear solution. For the treatment of purulent otitis 36 ears were divided in groups A1 and B1. The ears of both groups were treated with topical solution and systemic antimicrobial. In group A1 was performed an only ear flushing at day 0.The ears was evaluated clinically (0, 15, 30, 45 days of treatment), and the ears with no pruritus, cerumen/exudate in the acoustic conch and erythema in the clinical otoscopy were discharged. Samples for microbiological evaluation were collected in the three studies. The cases of OC in relation to OP were more frequent in the breed poodle and in the breed brazilian fila, respectivelly, in pendulous ears the evolution of OP was chronic. The average age in OC was 3.3, and in OP, 4.4. The OC were characterized by erythema in the acoustic conch and variable amount of cerumen, and the OP were characterized by the shaking of the head, bad smell, exudate in the acoustic conch, otalgia, ulcers and stenosis and the moderate to intense amount of exudate. In the OC cytology there was predominance of Gram + cocci and yeast, in OP Gram rods and Gram + cocci. In OC the main isolates were M. pachydermatis and S. intermedius. In OP they were Proteus sp., P. aeruginosa and S. intermedius. Amoxicillin associated to clavulanic acid in OC and tobramycin in OP were the antibacterial more effective. In the evaluation of the treatment of OC it was observed that, at day 45, 14 ears of group A and 10 of group B were discharged. However, statistic differences between the treatments in all evaluation were not observed. In the first collection, M. pachydermatis and S. intermedius were isolated, at day 30, none of the samples presented bacterial growth. In the treatment of OP, both groups showed reduced clinical signs at day 45, being discharged 13 ears of group A1 and 12 of group B1. Gram and Gram + were isolated, which decreased in both treatments. Gentamicin was the most effectiveness antibacterial for both studies. It was concluded that, in the conditions studied there was difference in relation to the age, breed, clinical evolution, clinical signs, cytology, isolation and sensibility to antibiotics between ceruminous and purulent otitis; the use of ceruminolytic and ear flushing at day 0, in OC and OP respectively, did not show difference in the reduction of clinical signs, bacterial and fungal isolation and in clinical discharge. / Este estudo objetivou relacionar casos de otite externa canina ceruminosa e purulenta com a idade e raça do cão, evolução clínica, conformação da orelha, achados clínicos e microbiológicos; avaliar o efeito da terapia tópica associada a ceruminolíticos em orelhas com otite externa ceruminosa e, avaliar o efeito da lavagem do canal auditivo em orelhas com otite externa purulenta. As orelhas foram avaliadas pelo tipo de secreção em otite ceruminosa (OC) ou otite purulenta (OP). Para o tratamento da otite externa ceruminosa 40 orelhas foram divididas nos grupos A e B, sendo o grupo A tratado com ceruminolítico e solução otológica e, o grupo B somente com solução otológica. Para o tratamento da otite purulenta 36 orelhas foram divididas nos grupos A1 e B1. Ambos os grupos foram tratados com solução tópica e antibacteriano sistêmico, no grupo A1 foi realizada uma única lavagem auditiva no dia 0. As orelhas foram avaliadas clinicamente (0,15,30,45 dias) e aquelas com ausência de prurido, de cerúmen/exsudato na concha acústica e de eritema na otoscopia receberam alta clínica. Nos três estudos foram colhidas amostras para avaliação microbiológica. Casos de OC em relação à OP foram mais freqüentes, respectivamente em cães da raça poodle e da raça fila brasileiro, em orelhas pendulares e a evolução das OP foi crônica. A média de idade nas OC foi 3,3 anos e nas OP 4,4 anos. As OC se caracterizaram por eritema da concha acústica e quantidade variável de cerúmen, e as OP por balançar da cabeça, odor fétido, exsudato na concha acústica, otalgia, úlceras, estenose e quantidade moderada e intensa de exsudato. Na citologia nas OC houve predomínio de cocos Gram+ e leveduras e nas OP bacilos Gram- e cocos Gram+. Nas OC, os principais isolados foram de Malassezia pachydermatis e Staphylococcus intermedius e nas OP Proteus sp., Pseudomonas aeruginosa e S. intermedius. Amoxicilina com ácido clavulânico nas OC e tobramicina nas OP foram os antibacterianos mais eficazes. Na avaliação do tratamento das OC aos 45 dias houve alta clínica em 14 orelhas do grupo A e 10 do grupo B, porém não foram observadas diferenças estatísticas entre tratamentos em todas as avaliações. Na primeira coleta foram isolados principalmente M. pachydermatis e S. intermedius, aos 30 dias nenhuma amostra apresentava crescimento bacteriano. No tratamento das OP em ambos os grupos os sinais clínicos estavam reduzidos aos 45 dias, com alta clínica de 13 orelhas do grupo A1 e em 12 do grupo B1. Foram mais isolados bacilos Gram- e cocos Gram+, que diminuíram em ambos tratamentos. Gentamicina foi o antibacteriano com maior eficácia nos dois estudos. Conclui-se que nas condições estudadas houve diferença quanto à idade, raça, evolução clínica, achados clínicos, citologia, isolamento e sensibilidade a antibacterianos entre as otites ceruminosas e purulentas; o uso de ceruminolítico e a lavagem do canal auditivo no dia 0, respectivamente nas OC e OP não demonstraram diferença na redução dos sinais clínicos, no isolamento bacteriano e fúngico e na alta clínica.

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