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Subject Area

Urology

Article Type

Original Study

Abstract

Background The miniaturization of endourological instruments and improvements in laser lithotripsy have revolutionized the approach to renal stones. Flexible ureteroscopy (FURS) is an integral part of minimally invasive contemporary treatment of urinary stone disease. Objective To assess the effectiveness of FURS in the treatment of renal stones. Patients and methods Symptomatic patients with renal stones less than 2 cm were prospectively enrolled and treated using FURS (Boston Scientific LithoVue). Patients were considered stone free if no residual stones were seen endoscopically and radiographically after the procedure. The efficiency and the safety of the procedures were analyzed. Results Between June 2020 and June 2021, 50 ureteroscopic procedures were performed in our department. Holmium: yttrium-aluminum-garnet laser lithotripsy was necessary in 41 (82%) patients. The mean ± SD stone size (mm) was 14 ± 4. The overall stone-free rate after a single procedure of FURS was 76%. The remaining 12 patients had residual stones. Complications have been recorded in eight (16%) patients, including fever in six cases and gross hematuria in two cases. No major complications occurred. All patients were treated conservatively. Conclusions FURS is an effective treatment option in patients with renal stones. Single-procedure stone-free rates are high with a low rate of only minor complications.

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