Bladder Stone due to Hem-O-Lok Clip Materials Following Radical Prostatectomy

Abstract

Prostate cancer is the most common cancer among men in developed countries and radical prostatectomy is the cornerstone treatment for localised prostate cancer. Laparoscopic and robotic- assisted laparoscopic radical prostatectomy (LRP and RALRP, respectively) are safe and effective alternatives to open radical prostatectomy. Hemostasis is one of the most crucial steps in LRP and RALRP in order to prevent damage of neurovascular bundle and to achieve proper anastomosis without tension. Hem-O-Lok clips are practical and effective materials for vessel ligation and frequently used by urologists for lateral pedicle ligation during these procedures. However, it has some certain disadvantages such as migration into the bladder and possible stone formation and migration into the anastomotic site and causing bladder neck contractures. Herein, we present two cases with a pre-diagnosis of bladder stone, which were formed around migrated Hem-O-Lok clips, following LRP and RALRP.