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Ureteral Injuries Secondary to Blunt Abdominal Trauma: A 15-Year Review of Presentation, Management, and Outcomes at a Level 1 Trauma Center.
Urology 2022 March 10
OBJECTIVES: To report our contemporary experience with ureteral injuries secondary to blunt trauma, with diagnostic methods and management stratified according to injury severity.
METHODS: We performed a retrospective 15-year study (4/2005-4/2020) at a regional level I trauma center. Patients were categorized as having a partial or complete transection injury. Treatment success was defined as the absence of hydronephrosis or obstruction on follow-up imaging.
RESULTS: Eighteen patients suffered 10 partial and 9 complete ureteral transections. All 16 patients who underwent initial evaluation with computed tomography were correctly graded as having partial or complete transections, and there were no missed injuries. Treatment of partial transections included observation (3/9), retrograde double-J stent placement (4/9), and Heineke-Mikulicz pyeloplasty (2/9). At a median follow-up of 9 (IQR 2-59) months, 8/9 (89%) partial transections were treated successfully. Treatment of complete transections included pyeloplasty (3/9), ureteroureterostomy (4/9), and ureteroneocystostomy (1/9). One patient who underwent attempted reconstruction 6 days after trauma required nephrectomy. At a median follow-up of 32 (IQR 4-82) months, 7/8 (89%) reconstructed complete transections were treated successfully.
CONCLUSIONS: CT with delayed phase imaging is a sensitive test to detect ureteral injuries after blunt trauma, and CT can distinguish between partial and complete transections. Partial transection injuries secondary to blunt trauma may be amenable to ureteral stent placement or close observation in select cases. Good intermediate-term outcomes can be achieved with early surgical intervention in the case of complete transections.
METHODS: We performed a retrospective 15-year study (4/2005-4/2020) at a regional level I trauma center. Patients were categorized as having a partial or complete transection injury. Treatment success was defined as the absence of hydronephrosis or obstruction on follow-up imaging.
RESULTS: Eighteen patients suffered 10 partial and 9 complete ureteral transections. All 16 patients who underwent initial evaluation with computed tomography were correctly graded as having partial or complete transections, and there were no missed injuries. Treatment of partial transections included observation (3/9), retrograde double-J stent placement (4/9), and Heineke-Mikulicz pyeloplasty (2/9). At a median follow-up of 9 (IQR 2-59) months, 8/9 (89%) partial transections were treated successfully. Treatment of complete transections included pyeloplasty (3/9), ureteroureterostomy (4/9), and ureteroneocystostomy (1/9). One patient who underwent attempted reconstruction 6 days after trauma required nephrectomy. At a median follow-up of 32 (IQR 4-82) months, 7/8 (89%) reconstructed complete transections were treated successfully.
CONCLUSIONS: CT with delayed phase imaging is a sensitive test to detect ureteral injuries after blunt trauma, and CT can distinguish between partial and complete transections. Partial transection injuries secondary to blunt trauma may be amenable to ureteral stent placement or close observation in select cases. Good intermediate-term outcomes can be achieved with early surgical intervention in the case of complete transections.
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