Flexible ureterorenoscopy for renal stones 20-30 mm a prospective randomized study

• Published in: African journal of urology Vol. 28; no. 1
• Main Authors: Sebaey, Ahmed, Taleb, Ahmed Abou, Elbashir, Salah, Gomaa, Rabie, Elshazli, Ali, Saber, Wael
• Format: Journal Article
• Language: English
• Published: Springer 01.12.2022
• Subjects: Care and treatment; Kidney stones; Medical research; Medicine, Experimental; Povidone
• ISSN: 1110-5704; 1961-9987
• DOI: 10.1186/s12301-022-00278-7

Background To evaluate the safety and efficacy of mini percutaneous nephrolithotomy (mini PCNL) and retrograde intrarenal surgery (RIRS) in treatment of kidney stones 20-30 mm. Methods A prospective randomized study of 70 patients who presented to the urology department with calyceal or renal pelvic stone of 20-30 mm between September 2017 and September 2019. Patients were randomly divided into two groups, Group A (Mini PCNL) consists of 35 patients who were treated with mini PCNL and Group B (RIRS) consists of 35 patients who were Achieving success of the technique was considered when the patient is stone-free or has radiologically insignificant residual fragments < 4 mm. Results The demographic data in this study were comparable in both groups. The stone size was 20.43 ± 2.2 mm in group A & 20.5 ± 2.1 in group B, with no statistical significance. Meanwhile, the operative time in group A was 59.71 ± 19.44 min and in group B was 80.43 ± 14.79 min with statistical significance difference (p value < 0.001), while Fluoroscopy time had a mean of 8.11 ± 2.05 min in group A & 5.8 ± 1.98 min in group B with statistically significant diffrence (p value < 0.001). The stone free rate (SFR) was 88.6% in mini PCNL and 82.9% in RIRS with no statistically significant difference (p value: 0.5). Conclusion RIRS and mini PCNL can be an effective and alternative option for treatment of renal stones 2-3 cm. Both techniques have relatively similar SFR but RIRS showed more operative time, on contrary Mini-PCNL has more operative and postoperative complications. A multicenter studies with larger numbers of patients will be more effective to confirm these results.