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Year 2009 - Volume 29, Number 02
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Análise microscópica do miocárdio ventricular esquerdo em cães soropositivos para cinomose, p.117-119
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ABSTRACT.- Rezende R.S., Coelho H.E, Kamimura R., Severino R.S, Oliveira, P.C.L., Medeiros A.A. & Magalhães A.O.C. 2009. [Microscopic analysis of the left ventricular myocardium in positive serum dogs to distemper disease.] Análise microscópica do miocárdio ventricular esquerdo em cães soropositivos para cinomose. Pesquisa Veterinária Brasileira 29(2):117-119. Instituto de Estudos Avançados em Veterinária José Caetano Borges, Universidade de Uberaba, Av. do Tutunas 720, Uberaba, MG 38061-500, Brazil. E-mail: rezendehvu@hotmail.com
Classified pertaining to the genus Morbillivirus of the Paramyxoviridae family, the canine distemper virus is a RNA single-stranded virus with negative polarity and causes a multisystemic disease, serious and highly contagious for dogs and wild carnivores, with a high mortality rate in non-vaccinated animals or with vaccine fails. With the objective to evaluate heart histopathological alterations, particularly in the left ventricular myocardium, in dogs naturally infected with canine distemper virus, 35 dogs, males and females of different ages, were studied. All the 35 samples sent to the Veterinary Hospital of Uberaba were serum-positive for distemper (immunoassay technique in solid phase) and had in the left ventricular myocardium the following histopathologic alterations: myocarditis, hyalin degeneration, hyperemia and hemorrhage, in 42.8% (15/35), 31.4% (11/35), 14.3% (5/35) and 11.4% (4/35), respectively. Having carried out the Qui-Quadrado test with a significancy level of 0.05, it can be concluded that there is a high correlation (p=0.02) between the infected animals with canine distemper virus and histopathological alterations found in the left ventricular myocardium. |
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