A Prospective Randomized Comparison Between Laparoscopic Ureterolithotomy and Semirigid Ureteroscopy for Upper Ureteral Stones >2 cm: A Single-Center Experience.

AIMS AND OBJECTIVES

The optimal management method of upper ureteral stones >2 cm is still a challenge. We performed a prospective randomized comparison between laparoscopic ureterolithotomy (LU) and ureteroscopic lithotripsy for upper ureteral calculus >2 cm to evaluate safety and efficacy of both procedures.

MATERIALS AND METHODS

Between January 2010 and May 2012, 110 patients with a single radiopaque upper ureteral calculus >2 cm were included in the present study. Randomization was done in two groups-group A: LU was performed and group B: Ureteroscopy (URS) was performed using a 6/7.5F semirigid ureteroscope (Richard Wolf) with holmium laser intracorporeal lithotripsy. Statistical analysis was performed regarding demographic profile, success, retreatment, auxiliary procedure rates, and also complications.

RESULTS

Out of the total 110 patients, 54 patients were enrolled in group A and 56 patients were enrolled in group B. Mean stone size was 2.3±0.2 cm in group A versus 2.2±0.1 cm in group B (p=0.52). The overall 3-month stone-free rate was (50/50) 100% for group A versus (38/50) 76% for group B (p=0.02). The retreatment rate was significantly greater in group B than group A (8% vs. 0%, respectively; (p=0.01). Auxiliary procedure rate was higher in group B than in group A (26% vs. 0% respectively; p=0.001). The complication rate was 12% in group A versus 26% in group B (p=0.001).

CONCLUSIONS

For upper ureteral stones of size greater than 2 cm, LU has a greater stone clearance rate, comparable operating time, lesser need for auxiliary procedure, and complication rate as compared to URS.