Composição de urólitos vesicais de cães determinada por espectroscopia de energia dispersiva (EDS) e análise química

• Autor(a) principal: Ariza , Paula Costa
• Data de Publicação: 2014
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• dARK ID: ark:/38995/0013000003vr0
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/4646
• topic: Cálculos urinários; Cálculos vesicais; Estruvita; Fosfato de cálcio; Urolitíase; Bladder calculi; Calcium phosphate; Struvite; Urinary calculi; Urolithiasis.; PATOLOGIA ANIMAL::PATOLOGIA CLINICA ANIMAL

Urolithiasis is frequently and recurrently observerd on dogs.. Uroliths are crystalline concretions that form in the lumen of the urinary tract due to urine oversaturation by minerals. They may lead to serious consequences, such as obstruction of the urinary flow. An efficient treatment depends on the compositional analysis of the uroliths This study aimed to evaluate the composition of dog’s urinary calculi in the city of Goiânia, by using chemical analysis and energy dispersive spectroscopy – EDS. Comparisons between the composition found and individual and clinical characteristics of the patients were made, as well as comparisons between both techniques. Analysis were held on 55 surgical removed uroliths fom the bladder of dogs. Struvite was present in 51 of the uroliths (15 isolatedly), calcium phosphate in 32 (always associated to struvite), calcium oxalate in five (two isolatedly), urate in five (two isolatedly) and silica was present in four (none of the uroliths was composed only by silica). The most common combination of compounds was that of struvite and calcium phosphate. EDS permitted both the evaluation of the different regions of the uroliths and the microscopical observation of the sample structure, but didn’t allow the correct identification of the urate. The association between both techniques was efficient on evaluating the calculi composition.