Comparative analysis between mini percutaneous nephrolithotomy and flexible ureterorenoscopy for the management of renal lithiasis.

Cirugia pediatrica : organo oficial de la Sociedad Espanola de Cirugia Pediatrica Pub Date : 2026-04-15 DOI:10.54847/cp.2026.02.15

A Hernández Pérez, N Gallego Mellado, O Sánchez París, N Albertos Mira-Marcelí, M E Martín Hortiguela, V Díaz Díaz, C Abril Sánchez, J Adatty Molina, A Encinas Goenechea, J Gonzálvez Piñera

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Abstract

Objectives: To describe and compare the effectiveness and complications in our center with mini-percutaneous nephrolithotomy (mini-PCNL) and flexible ureterorenoscopy (URS) techniques for kidney stones.

Material and methods: Retrospective study with patients aged 0-14 years undergoing lithotomy at our center from 2009-2024. Demographic variables, medical history, location, size, stone composition, stone-free rate, operative time, hospital stay, and early complications (Clavien-Madadi scale) are analyzed.

Results: Twenty cases were obtained: 9 URS and 11 mini-PCNL. The mean age was 8 years (4.71-9.56) with 57.9% males. 42% presented some lithogenic factor (3 cystinuria, 2 hypercalciuria). No differences were found between URS and mini-PCNL groups (p> 0.05) in age, sex, location, size, medical history, composition, operative time [150 (110-250) vs 120 (70-243) min], hospital stay [1 (1-2) vs 1 (1-2) days], or double J stent placement. The stone-free rate was 45% for mini-PCNL and 30% for URS (p= 0.042). The complication rate was 66% for URS [3 cases of urinary tract infection (CM II), 3 stone migration (CM IIIa)]; and 18% for mini-PCNL [1 case of pain (CM II) and 1 stone migration (CM IIIa)], with statistically significant differences being found (p= 0.02, relative risk of complication or RR= 1.14).

Conclusions: Mini-PCNL is an effective and safe technique for the treatment of kidney stones, with higher stone-free rates than URS and fewer complications.

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经皮微型肾镜取石术与输尿管软镜治疗肾结石的比较分析。

目的：描述和比较我中心微型经皮肾镜取石术（mini-PCNL）和柔性输尿管镜（URS）治疗肾结石的疗效和并发症。材料与方法：回顾性研究2009-2024年在我中心接受取石手术的0-14岁患者。分析人口统计学变量、病史、位置、大小、结石组成、结石清除率、手术时间、住院时间和早期并发症（Clavien-Madadi量表）。结果：20例：尿路损伤9例，mini-PCNL 11例。平均年龄8岁（4.71 ~ 9.56岁），男性占57.9%。42%存在一定的产石因素（胱氨酸尿3例，高钙尿2例）。URS组与mini-PCNL组在年龄、性别、位置、大小、病史、组成、手术时间[150 (110-250)vs 120 (70-243) min]、住院时间[1 (1-2)vs 1（1-2）天]、双J型支架置放等方面均无差异（p < 0.05）。mini-PCNL无结石率为45%，URS为30% （p= 0.042）。尿路感染3例（CM II），结石移位3例（CM IIIa）；mini-PCNL为18%[1例疼痛（CM II）和1例结石移位（CM IIIa）]，差异有统计学意义（p= 0.02，并发症相对风险或RR= 1.14）。结论：Mini-PCNL是一种安全有效的治疗肾结石的技术，结石清除率高于URS，并发症少。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Cirugia pediatrica : organo oficial de la Sociedad Espanola de Cirugia Pediatrica

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