Evaluating outcomes of semi-rigid ureteroscopy for renal stone

Abstract

Purpose: To ascertain the safety and efficacy of Semi-rigid Ureteroscopy for treating renal stones. Materials and Methods: This is a prospective descriptive study for 69 cases with renal stones have been treated by Semirigid Ureteroscopy from January 2016 to June 2020 at Hue University of Medicine and Pharmacy Hospital. Results: Out of a total of 69 patients, 58.0% (n=40) were males and 42.0% (n=29) were females. The age ranged from 25 - 75 years, with the mean age of 48.5 years. The average stone size was 20.3 mm (9 - 30 mm). Treatment were completely successful in 66/69 cases (95.7%). Surgery failure includes 3 cases (4.3%): inability to reach the renal stone in 2 case (2.9%), stone retropulsion in 1 case (1.4%). A average operative time was 48.2 minutes (20 - 75 minutes). All of cases (100%) was put the residual stent into the ureter. The mean post-operation hospital stay was 4.1 days (1 - 8 days). About early post‑operative complications, there were 11/66 cases (16.7%), include: 4 cases (6.1%) of hematuria; 5 cases (7.6%) of fever; 2 cases (3.0%) of urinary tract infection. The stone-free rate (assessed with X-ray) following S-URS was 72.7% after 1 month. We found significant differences between the size of the stone and early stone-free rates with p < 0.05. Conclusions: Semi-rigid Ureteroscopy is a safe and effective method of managing renal stones with low rate of intra‑ and early post‑operative complications. Success depends on the experience of surgeons and judicious selection of cases. Key words: Semi-rigid Ureteroscopy, renal stones, treatment