LAUSR

OBJECTIVE To report urologic outcomes from a series of IUIs, sustained during non-urologic procedures, with regards to timing of diagnosis and management of the injury. Iatrogenic ureteral injury (IUI) is the most common mechanism of ureteral trauma. Injuries can be intraoperatively diagnosed (IOD) or postoperatively diagnosed (POD). METHODS This was a retrospective chart review of adult patients at a single institution who sustained an IUI from a non-urologic procedure between 2008 and 2019. Primary outcome was tube-dependence (ureter stent or nephrostomy tube) and nephrectomy rates at last follow up. Secondary outcome was the number of additional urologic procedures required to manage subsequent complications of IUI. RESULTS There were 30 patients with IOD and 57 patients with POD. In the IOD group, at mean follow up of 6.3 months, 4 patients (14.3%) were tube dependent. In the POD group, at mean follow up of 13.1 months, 5 patients (10%) were tube dependent (p=0.570). Rate of nephrectomy was higher in POD group compared to IOD, but the difference was not statistically significant (12.3% vs 6% respectively, p=0.414). Additionally, in the POD group, 56% and 19.3% required a secondary and tertiary procedure to manage IUI complications, respectively. These rates were 16.7% (p<0.001) and 3.3% (p=0.002) in the IOD group. CONCLUSION Delayed diagnosis of IUI was significantly associated with increased number of procedures needed to manage the injury. The rate of nephrectomy and tube dependence in this group was higher but not statistically significant. Delayed diagnosis of IUI is associated with higher treatment burden.