Avaliação radiográfica das articulações dos membros locomotores de cães naturalmente acometidos por leishmaniose visceral no município de Araçatuba-SP
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Data
2009-08-24
Autores
Silva, Alexandre Redson Soares da [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
A leishmaniose visceral pode ser incluída como uma das causas de poliartrite inflamatória em cães, entretanto, são escassas e contraditórias as informações sobre as lesões osteoarticulares associadas a esta enfermidade. Partindo-se da hipótese de que cães infectados por Leishmania chagasi apresentam distúrbios locomotores, investigou-se a freqüência, distribuição e caracterização dos achados radiográficos e do líquido sinovial das articulações do cotovelo, cárpica, joelho e társica, de 100 cães com o diagnóstico parasitológico e sorológico positivo para leishmaniose visceral. Radiograficamente observou-se a presença de lesões osteoarticulares em 83% dos cães, tais como, irregularidade do trabeculado ósseo (28,62%), esclerose subcondral (20,77%), osteólise (18,12%), edema (12,93%), colapso articular (12,71%), osteólise e proliferação óssea associada (3,98%), proliferação óssea (2,65%), aumento de opacidade medular e fratura patológica (0,11%) respectivamente, sendo as articulações társicas (75%) e cárpicas (54%) as mais acometidas. A avaliação citológica foi realizada em 603 de 800 articulações estudadas, onde 199 apresentaram formas amastigotas de Leishmania sp., enquanto 405 tinham ausência do parasito e 196 estavam contaminadas com sangue ou com material insuficiente para análise. A maioria das amostras de líquido sinovial apresentou alteração na contagem diferencial das células, sendo, o aumento do número de células mononucleares ativadas e neutrófilos o achado mais comumente encontrado. Os resultados obtidos permitiram concluir que cães com leishmaniose visceral apresentam lesões articulares com distribuição difusa, com maior acometimento das articulações distais e ausência de sinais radiográficos patognomônicos, e que se faz necessária a avaliação do líquido sinovial para auxiliar no diagnóstico diferencial...
Visceral leishmaniasis can be included as a cause of dog inflammatory polyarthritis, however there is few and contraditory informations about osteoarticular lesions associated with this disease. Based from the hypothesis that dogs infected by Leishmania chagasi present locomotor disturbances, the frequency, distribution and characterization of radiographic findings and synovial fluid of elbow, carpus, knee and tarsus articulations from 100 dogs with positive parasitologic and serologic diagnosis for visceral leishmaniasis were studied. The presence of osteoarticular lesions were radiographically observed in 83 per cent of the dogs, and characterized by trabecular bone irregularity (28.62%), subchondral sclerosis (20.77%), osteolysis (18.12%), edema (12.93%), articular collapse (12.71%), association of osteolysis and bone proliferation (3.98%), periosteal proliferative reaction (2.65%), increased medullar opacity and pathologic fracture (0.11%). The most affected articulations were the tarsus (75%) and carpus (54%). The citologic assessment was realized on 603 of 800 studied articulations, whith 199 presenting amastigote forms of Leishmania sp.,while 405 had no parasites and 196 were contaminated with blood or had insufficient sample. The most of synovial fluid samples showed a change differential cell counting alterations, with high number of activated mononuclear cells and neutrophils being the common findings. The results allowed to conclude that dogs affected by visceral leishmaniasis presented lesions joint with diffuse distribution, with more distal articulations involvement and absence of pathognomonic radiographic signs, and that is needed to asses the synovial fluid to assist in differential diagnosis of arthropathy in areas endemic for canine visceral leishmaniasis.
Visceral leishmaniasis can be included as a cause of dog inflammatory polyarthritis, however there is few and contraditory informations about osteoarticular lesions associated with this disease. Based from the hypothesis that dogs infected by Leishmania chagasi present locomotor disturbances, the frequency, distribution and characterization of radiographic findings and synovial fluid of elbow, carpus, knee and tarsus articulations from 100 dogs with positive parasitologic and serologic diagnosis for visceral leishmaniasis were studied. The presence of osteoarticular lesions were radiographically observed in 83 per cent of the dogs, and characterized by trabecular bone irregularity (28.62%), subchondral sclerosis (20.77%), osteolysis (18.12%), edema (12.93%), articular collapse (12.71%), association of osteolysis and bone proliferation (3.98%), periosteal proliferative reaction (2.65%), increased medullar opacity and pathologic fracture (0.11%). The most affected articulations were the tarsus (75%) and carpus (54%). The citologic assessment was realized on 603 of 800 studied articulations, whith 199 presenting amastigote forms of Leishmania sp.,while 405 had no parasites and 196 were contaminated with blood or had insufficient sample. The most of synovial fluid samples showed a change differential cell counting alterations, with high number of activated mononuclear cells and neutrophils being the common findings. The results allowed to conclude that dogs affected by visceral leishmaniasis presented lesions joint with diffuse distribution, with more distal articulations involvement and absence of pathognomonic radiographic signs, and that is needed to asses the synovial fluid to assist in differential diagnosis of arthropathy in areas endemic for canine visceral leishmaniasis.
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Palavras-chave
Radiografia, Leishmaniose, Liquido sinovial, Artrite, Zoonoses, Leishmaniose visceral, Radiography, Leishmaniasis, Visceral, Synovial fluid, Arthritis
Como citar
SILVA, Alexandre Redson Soares da. Avaliação radiográfica das articulações dos membros locomotores de cães naturalmente acometidos por leishmaniose visceral no município de Araçatuba-SP. 2009. 65 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Odontologia e Curso de Medicina Veterinária, 2009.