Ureters implantation into the colon is na alternative procedure when great losses of ureteral tissue occur becaming impossible to reimplant them into the urinary bladder. The main purpose of this paper was to evaluate gross and histological lesions together with clinical pathology findings in dogs in wich experimental ureterocolonic anastomosis were performed. The surgery was done in 8 healthy adult males and females dogs using the following procedure: ligature of the left ureter distal stumps dose to the urinary bladder and submucous implantation of a proximal ureter short segment (tunneling technique) in the colon antimesenteric region. Serum urea, creatinine, sodium, potassium were measured just before and 2, 7, 15, and 30 days after the surgical procedure. Six animais were clinically observed during 30 days and the other two were observed during 7, and 180 days respectively. After the surgery, it was observed that ali animais had soft stool since the first day. Enlargement of the implanted ureter and pyelonephritis in the left kidney were observed in all animals. Transient azotemia and hydronephrosis were observed in the animal keptfor 7 days and infour animais keptfor 30 days. Hydronephrosis was detected by ultrasono g raphy at day 30 in the animal keptfor 180 days but it was not observed when necropsy was performed. In one animal keptfor 30 days there was increase in the creatinine leveis at day 7, 15 and 30. No alteration was observed in the histological examination of cólon mucous mem- brane of ali animais in the área flushed with urine. The few alterations found in the serum chemistry did not compromise the health of the animals and considering that there was no lesion on the colon mucous membrane it is possible to conclude that the ureterocolonic anastomosis is a viable procedure to be used for a short period of time.
dog; ureter; colon; ureterocolonic anastomosis
