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Pesqui. vet. bras ; 28(5): 249-252, maio 2008. ilus
Article in Portuguese | LILACS | ID: lil-485062

ABSTRACT

Foram estudados 20 pares de rins de cutias (Dasyprocta prymnolopha Wagler, 1831), com o objetivo de descrever os segmentos anátomo-cirúrgicos arteriais. As artérias renais foram injetadas com solução de Vinilite corada, e os rins foram submetidos à corrosão ácida para a obtenção dos moldes vasculares. Observou-se que as artérias renais da cutia, sempre únicas, dividiram-se em artéria setorial ventral e artéria setorial dorsal, caracterizando dois setores renais separados por plano avascular. As artérias setoriais penetraram no hilo renal (100 por cento dos casos). Estes vasos deram origem aos ramos segmentares responsáveis pela irrigação de territórios independentes em cada setor, os segmentos arteriais renais. No rim direito foram observados 3 (60 por cento), 4 (35 por cento) e 5 segmentos (5 por cento) no setor arterial ventral e 3 (30 por cento), 4 (45 por cento), 5 (20 por cento) e 6 (5 por cento) segmentos no setor dorsal e, à esquerda, 2(10 por cento), 3 (55 por cento) e 4 (35 por cento) segmentos no setor ventral e 3 (25 por cento), 4 (50 por cento) e 5 (25 por cento) no dorsal. Com base na distribuição arterial nos rins de cutia, observaram-se setores e segmentos arteriais independentes, sendo possível, desta forma, a realização de setoriectomia e segmentectomia nesta espécie.


Twenty pairs of agouti (Dasyprocta prymnolopha Wagler, 1831) kidneys were studied to describe the arterial anatomical-surgical segments. The renal arteries were injected with stained acetate vinyl, followed by procedures of acid corrosion in order to obtain vascular casts. It was found that the renal artery is always single and bifurcated into ventral and dorsal sectorial arteries. The sectorial arteries reached the kidneys (100 percent of the cases) through the hilus. These vessels gave origin to segmental branches responsible for kidney irrigation. At the right kidney, the ventral sectorial arteries gave origin to 3 (60 percent of the cases), 4 (35 percent) and 5 (5 percent) segmental branches; the dorsal sectorial arteries gave origin to 3 (30 percent), 4 (45 percent), 5 (20 percent) and 6 (5 percent) segmental arteries separated by a vascular sector. At the left kidney, the ventral sectorial arteries originated 2 (10 percent), 3 (55 percent) or 4 (35 percent) segmental branches; the dorsal sectorial arteries gave origin to 3 (25 percent), 4 (50 percent) and 5 (25 percent) segmental branches. Based on the arterial distribution of agouti kidneys, independent sections and arterial segments were found, so that it is possible to accomplish partial kidney resection surgery.


Subject(s)
Animals , Renal Artery/anatomy & histology , Kidney/anatomy & histology , Kidney/surgery , Rodentia/anatomy & histology , Corrosion Casting , Corrosion Casting/veterinary
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