Abstract:

Objective: We aimed to evaluate complications that occurred during ureteroscopy and predictive factors.Material and Method: Patients' files were retrospectively analyzed, who underwent ureteroscopy for ureteral stone between 2001-2014. Total 1015 patients and 1214 renal units ureteroscopy interventions were included in our study. Clavien-Dindo classification was used for the evaluation of the complications. Patients' demographics, stone localization, stone size, impacted or not, power supply used for lithotripsy, strategy for the stone breaking and complications that occurred peri-operatively were analyzed. Patients with Group-1 and without Group-2 complications were compared.Results: Patients' average age was 43± 17 190 years, stone free rate was 89% at first session. The average follow-up time was 7 months in all patients and 12 months inpatients with complications. Overall, 227 22% had complications. Of the patients, 80 had grade 1 or 2 complications. Upper stone localization p=0.041 , stone size bigger than 10 mm p=0.02 and impacted stones p=0.016 were predictive factors for development of complications. Less complication rate was detected in patients who underwent ureteroscopy with "smash and go" strategy 1.3% vs. 7.6% p=0.001 . Mean patient age, gender, side, experience of the urologist, application of balloon dilatation at the beginning of intervention, power supply used for lithotripsy were not predictive factors for the development of complications. Conclusions: Localization of the stone in the upper ureter and stone size larger than 10 mm were detected to increase complication rate whereas application of "smash and go" strategy decreased complication rate in ureteroscopy and stone lithotripsy

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