[Atraumatic microsurgical nephrotomy. Experimental study on canine kidney (author's transl)].

Microsurgical transversal section and repair of canine kidney was presented as a model to study the condition required for an atraumatic nephrotomy. The investigation was carried out by two methods. In a first series five kidneys were injected by coloured resins after transection and microsurgical repair. Results were evaluated by cast examination of vascular net work. In a second series, transection and repair were made by an "ex-situ" procedure on seven dogs. The repaired kidney was autotransplanted in the opposite fossa iliaca. Long term renal function was evaluated after controlateral nephrectomy, by arteriography, biologic data and DMSA Tc 99 m scintiscan. The good results showed that microsurgery is useful in atraumatic nephrotomy and now a new tool in intrarenal access.