Authors: Hanan Goldberg, Dor Golomb, Yariv Shtabholtz, Shlomi Tapiero, German Creiderman, Avi Shariv, Jack Baniel, David Lifhshitz

Publication date: 2017/12

Journal: World journal of urology

Volume: 35

Issue: 12

Pages: 1947-1954

Publisher: Springer Berlin Heidelberg

:Description

• Purpose
  To investigate the performance of retrograde intrarenal surgery (RIRS) for the 1–2 cm renal stone size range in comparison to smaller stones.
• Materials and methods
  From a data base of 3000 ureteroscopies between 2004 and 2014, 635 consecutive patients underwent RIRS for renal stones. Patients were divided to three groups according to their renal stone size (<10, 10–15, 15–20 mm). Preoperative, operative, stone free rate (SFR) and follow-up data were analyzed and compared.
• Results
  The SFR for the three groups was 94.1, 90.1 and 85%, respectively. Patients with renal stone size above 15 mm had a statistically significantly lower SFR. The efficiency quotient calculated for stones larger and smaller than 15 mm was 83.9 vs. 91.8%, respectively (p < 0.01). The mean operative time and hospital stay were …