KẾT QUẢ SỚM NỘI SOI NGƯỢC DÒNG TÁN SỎI THẬN BẰNG ỐNG MỀM TẠI BỆNH VIỆN TRUNG ƯƠNG QUÂN ĐỘI 108 NĂM 2025 - 2026

Abstract

Objectives: To evaluate the early outcomes of flexible ureteroscopic retrograde intrarenal surgery (RIRS). Methods: A prospective, descriptive, longitudinal study was conducted on 51 patients with a confirmed diagnosis of renal calculi who were indicated for flexible ureteroscopic RIRS, from August 2025 to February 2026 at the Center of Urology and Andrology, 108 Military Central Hospital.  Results: The mean age was 52.4 ± 10.7 years, with a male-to-female ratio of approximately 3.7:1. The mean stone size was 12.1 ± 4.5mm, and the mean stone density was 934.1 ± 365.2 HU. Concomitant ipsilateral migrated ureteral stone was performed in 25.5% of cases. The mean operative time was 38.4 ± 11.9 minutes, and the mean postoperative length of hospital stay was 1.8 days. At follow-up (mean 22.5 ± 5.8 days), the stone-free rate was 82.4%, the rate of minor complications (Clavien-Dindo grade I) was 7.8%, and the serum creatinine level decreased by 7.8 ± 30.6 µmol/L compared with the preoperative value (p < 0.05). Factors associated with a lower stone-free rate included multiple stones (≥ 2 stones) and stones located in the lower calyx. Conclusion:Flexible ureteroscopic RIRS is a safe technique, with a high stone-free rate, a low complication rate, and rapid postoperative recovery.