Flexible Ureterorenoscopy for Renal Stones-A Single Centre Experience

Objective: The aim of this study was to evaluate the safety and efficacy of flexible ureterorenoscopy (fURS) for the management of renal stones less than 2cm. Material and methods: This prospective observational study included a total of 73 cases with renal stones less than 2cm who were managed by fURS. Pre-operative, peri-operative and post-operative information was collected, and the overall outcome was observed in terms of: Success of accessing the pelvicalyceal system, Operative time, Intra-operative and post-operative complications, Duration of post-operative hospital stay and Stone free rate. Results: Our study consisted of 48(66%) males and 25(34%) females with a mean age of 37.5 years. The majority (29, 40%) of the renal stones were in the Inferior calyx followed by renal pelvis (15, 20%). Solitary calculus was present in the majority (44, 60%) of patients while 28(40%) patients had multiple calculi with a mean stone size of 11.85mm. The mean operative time was 57.89 minutes and 12(16%) patients developed complications (Clavien-Dindo -2) all of which were managed conservatively. Mean post-operative hospital stay was 1.19 days. The Stone Free Rate (SFR) was observed to be 91.78% with 6 (8.2%) patients requiring a secondary procedure. Mean follow up of 7.89 months with no mortality was observed. Conclusion: Flexible Ureterorenoscopy is a safe and efficacious procedure for renal stones less than 2cm with low morbidity and an excellent stone free rate. It can be routinely recommended for renal stones appropriate for the procedure with satisfactory follow-up results.