Abstract
Objective: Retrograde intrarenal surgery is commonly indicated for the treatment of 10-20 mm ureteral and renal stones. Sometimes, primary retrograde endoscopy is not possible. Pre-stenting may facilitate passage of ureteroscope or ureteral access sheath in these cases. This study aimed to assess the impact of preoperative ureteral stenting on the outcomes of retrograde endoscopic stone surgery.
Material and Methods: A database of patients who underwent retrograde intrarenal surgery for proximal ureteral or renal calculi between January 2015 and October 2018 was analyzed. Sixty-seven patients had a ureteral stent preoperatively (Group 1). Control group (Group 2) consisting of 67 patients were chosen among the rest of the database with similar characteristics. Preoperative, intraoperative and postoperative data of two groups were compared.
Results: There were no statistically significant differences in demographic and preoperative features between the two groups except for previous stone surgery. Overall complication rate, stone free rate, operation time and postoperative double J placement rate were similar between two groups. Most of the complications were low grade for both groups. In group 2 ureteral stricture was seen in two patients.
Conclusion: Retrograde intrarenal surgery, Preoperative stent, Stone, Stone free rate, Double J stent.