Login to Access Video or Poster Abstract: MP68-06
Sources of Funding: none

Introduction

To prospectively evaluate safety and efficacy of bilateral simultaneous retrograde intrarenal surgery (RIRS) for endoscopic management of bilateral renal calculi.

Methods

We prospectively evaluated 56 patients with bilateral renal calculi who underwent bilateral simultaneous RIRS for endoscopic management of bilateral renal calculi between June 2003 & May 2016 (study group). Placement of ureteral access sheath was preferred in all patients. 100 W holmium laser machine with 200-micron laser fiber was used with intention of stone dusting and fragmentation. A DJ stent was placed in all patients postoperatively. Stone free rate were evaluated 2-6 weeks postoperatively by combination of x-ray and ultrasonography of Kidneys. In patients who had tight ureter needing staged procedure, the data from second definitive procedure was used for analysis. Patient’s demographics, intra and postoperative data was entered in IBM SPSS Statistics 24 software and compared with 56 randomly selected patients who underwent unilateral RIRS for unilateral renal calculi at our institute (control group). Each control group patient was the one who underwent RIRS immediately after the study group patient in the sequence of RIRS patients at our institute.

Results

Patients demographics are shown in table 1. Study group patients had higher overall stone burden than control group. The mean duration of surgery was significantly longer in study group (P= 0.000). Despite longer operation time, the duration of postoperative catheterization and hospital stay was comparable in both groups (table 2). The intra and postoperative complications were comparable in both groups. Complete stone free rate was 78.5 % of patients in control group and 67.85 % of patients in study group (p= 0.436).

Conclusions

Bilateral simultaneous RIRS is safe and effective in patients with bilateral renal calculi.

Funding

none