RESEARCH COMMUNICATIONS OF THE 28th ECVIM-CA CONGRESS

Twenty‐one cats with ureteral obstruction were treated with ultrasound‐guided SUB placement. The correct placement was intraoperatively confirmed by ultrasound‐guided flush of the device. In all but 2 cases, the SUB device was placed without complication. In the first case, the string of the nephrostomy tube lead to urine leakage in the subcutaneous tissue, corrected surgically 9 days later. In the second case, the nephrostomy tube tip ended up subcapsular and led to a communication when pulled back into the pelvis, causing a subcapsular accumulation of urine, resolved after 2 months. Thirteen microsurgical ureterotomies were performed on 12 cats at the time of SUB placement. One ureterotomy was complicated by extrusion of purulent urine. The ureterotomy allowed stone removal in all but 2 cases. All 11 ureteroliths analysis identified calcium oxalate monohydrate. Two of the 8 cultures on pyelocentesis were positive while the preoperative cultures on cystocentesis were negative.