Endoscopic combined intrarenal surgery without ureteral access sheath performed for renal stone after Cohen reimplantation

Introduction: Endoscopic combined intrarenal surgery after anti-reflux operation is rarely performed.

Case presentation: A 37-year-old female was referred to our hospital for treatment of left renal stone. She underwent anti-reflux surgery (Cohen reimplantation) for left vesicoureteral reflux at the age of 10 years. Computed tomography revealed a 17 × 11 mm left inferior calyceal calculus. The patient received retrograde double-J stent insertion under radiographic guidance and underwent ultra-mini endoscopic combined intrarenal surgery without ureteral access sheath. The patient was discharged on postoperative Day 5 with no postoperative complications. Postoperative cystography showed no recurrence of vesicoureteral reflux. One month after the operation, kidney-ureter-bladder radiography and computed tomography scan revealed no residual stones or hydronephrosis.

Conclusion: Ultra-mini endoscopic combined intrarenal surgery without ureteral access sheath is an effective method for treating renal stones after Cohen reimplantation.