Urologic Survey (Endourology)

Re: A Prospective, Randomized Comparison of Shock Wave Lithotripsy, Retrograde Intrarenal Surgery and Miniperc for Treatment of 1 to 2 cm Radiolucent Lower Calyceal Renal Calculi: A Single Center Experience


  • Yakup Kordan

J Urol Surg 2015;2(1):46-46

Despite the development of new techniques for treatment of renal stones, the optimal treatment option for lower pole stones between 1-2 cm in diameter is still debated. In this prospective, randomized study, the authors compared the success and safety of shock wave lithotripsy (SWL), retrograde intrarenal surgery (RIRS) and miniperc for radiolucent stones of the lower pole, which, are 1-2 cm in diameter. They reported a significantly higher stone free rate at 3 months for miniperc when compared with SWL and RIRS (95%, 74% and 86% p=0.01, respectively). However, miniperc had significantly higher length of fluoroscopy and operation time, mean blood transfusion rate and length of stay at hospital. Although not statistically significant they also reported a higher overall complication rate for miniperc than the other groups. On the other hand, re-treatment rate (63.4% vs. 2.1% and 2.2%, p