ABSTRACT
The urological complications of renal transplantation in the rat when the bladder dome is used prompted us to study the viability of uretero-ureteral anastomosis with microsurgical techniques. The purpose of the study was to improve certain aspects of the technique employed in renal transplantation in the rat. For the study we utilized 27 Wistar rats. The left ureter was transected and anastomosed by free extramucosal sutures using the 180 degrees biangulation technique. Two groups of 13 rats were studied. For group A, a 6-0 nylon guide was used for the anterior aspect, whereas for group B anastomosis was performed without a guide. A urographic study was performed prior to sacrifice 21 days post-operatively. The pathological analysis included determination of foreign body reaction at the anastomotic site and the status of the renal parenchyma. The findings demonstrated better results were achieved in comparison with the technique previously employed using the bladder dome. Although slightly longer, using a guide seems to afford more reliable results, and is a useful technique in renal transplantation.
