Lumbar artery branch injury secondary to ureteroscopic manipulation.

Iatrogenic vascular injury in ureteroscopy is relatively uncommon and typically presents as a subcapsular hematoma. We report the case of an injury to a branch of the lumbar artery secondary to ureteral trauma during ureteroscopy. In the immediate postoperative period, the patient became hypotensive and tachycardic, prompting a workup that revealed an active hemorrhage. The patient then underwent subsequent angiogram and successful coil embolization.