| Summary: | Mitchell Egerton Barns,1 Matthew Vinh-Hoan Dinh Chau,1 Patrick Ely Teloken,1 Rupert Hodder2 1Sir Charles Gardiner Hospital, Department of Urology, Perth, WA, Australia; 2Sir Charles Gardiner Hospital, Department of General Surgery, Perth, WA, AustraliaCorrespondence: Mitchell Egerton Barns, Sir Charles Gardiner Hospital, Department of Urology, Perth, WA, 6009, Australia, Tel +61 409 439 006, Email Mitchell.barns@health.wa.gov.auAbstract: Here we present two cases of post-operative obstructive renal failure following major abdomino-pelvic sarcoma surgery. In both cases, prophylactic ureteric stents were inserted to aid the identification and protection of the ureters during resection of these complex retroperitoneal masses. In case one, obstructive renal failure occurred following ureteric stent removal on day 0 post-operatively. In case two, obstructive renal failure developed on day 1 post-operatively despite having a ureteric stent in situ. Here we propose that a combination of reflex anuria/ureteric edema and papillary sloughing led to the obstructive renal failure in both cases. Re-insertion of bilateral ureteric stents in case one, and replacement of a right ureteric stent in case two saw prompt excretion of urine and sloughy debris with rapid improvement of renal function. This article presents these cases in detail and further reviews the use of prophylactic ureteric stents in major abdomino-pelvic surgery along with the current guidelines for their usage.Keywords: ureteric injury, prophylactic ureteric stenting, endourology, obstructive renal failure, slough papillae
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