The use of double-J catheter decreases complications of retroperitoneoscopic ureterolithotomy.

Objective: To evaluate the retroperitoneoscopic ureterolithotomy in the treatment of ureteral calculi and the need for double-J catheter to reduce the procedure-related complications.

Methods: We conducted a retrospective study with 47 patients submitted to retroperitoneoscopic ureterolithotomy, of which 31 were selected and divided into two groups: Group 1, whose patients did not have double-J catheter placement, and Group 2, who underwent perioperative double-J catheter implantation. Data collected comprised pre-and post-operative excretory urography, operative time, postoperative analgesia, length of hospital stay and catheter removal.