Retroperitoneal laparoscopic renorrhaphy for post-percutaneous nephrolithotomy hemorrhage: a case report.

Percutaneous nephrolithotomy is the preferred treatment for large renal calculi; however, postoperative hemorrhage is a dangerous complication. The three main causes of hemorrhage after percutaneous nephrolithotomy are pseudoaneurysms, arteriovenous fistulas, and arterial lacerations. The preferred treatment for acute hemorrhage is superselective angioembolization. However, in a few cases, angiography reveals no abnormal findings pertaining to hemorrhage. We herein present a clinical case of a 48-year-old man who presented with multiple complex right renal calculi and was managed with percutaneous nephrolithotomy in the prone position. Massive hemorrhage occurred 6 days postoperatively, and renal angiography was immediately performed. However, while the bleeding was still occurring, no extravasation was observed on renal angiography. We performed retroperitoneal laparoscopic renorrhaphy, which successfully stopped the bleeding and consequently preserved the kidney. We suggest that retroperitoneal laparoscopic renorrhaphy can be effective in patients who have undergone failed renal arterial embolization or are reluctant to undergo renal arterial embolization.