Acute ureteral obstruction following superior hypogastric plexus block: A case report

Pelvic visceral pain associated with both cancer and chronic benign conditions may be alleviated by superior hypogastric plexus block (SHPB). The complications of SHPB include infection, bleeding, or intravascular injection because of the adjacent location of the iliac vessel to the route of needle insertion, and pelvic visceral damage. However, acute ureteral obstruction leading to acute renal failure (ARF) as a complication of SHPB has not been reported to date in the literature. We report a patient with ARF that resulted from acute ureteral obstruction following SHPB performed for the relief of lower abdominal pain and tenesmus in metastatic ureter cancer.