Ultra-mini percutaneous nephrolithotomy (UMP): one more armamentarium
1Department of Urology, Samved Hospital, Ahmedabad, India.
BJU International
|July 12, 2013
Summary
Ultra-mini percutaneous nephrolithotomy (UMP) is a safe and effective technique for removing renal stones up to 20 mm. This minimally invasive procedure offers fast patient recovery and minimal use of disposables.
Area of Science:
- Urology
- Minimally Invasive Surgery
- Nephrolithotomy
Background:
- Renal stones (urolithiasis) pose a significant clinical challenge.
- Existing percutaneous nephrolithotomy techniques can be invasive.
Purpose of the Study:
- To introduce and evaluate a novel ultra-mini percutaneous nephrolithotomy (UMP) technique.
- To assess the safety and efficacy of UMP for renal stone removal.
Main Methods:
- UMP was performed on 62 patients using a 3.5-F telescope and specialized sheaths.
- Tract dilation up to 13 F, holmium laser disintegration of stones.
- Saline eddy current used for automatic fragment evacuation.
Main Results:
- Mean calculus size was 16.8 mm; UMP was feasible in all patients, including children and those with solitary kidneys.
- Mean hospital stay was 1.2 days, with a stone-free rate of 86.66% at 1 month.
- Minimal complications (one hydrothorax), no auxiliary procedures needed.
Conclusions:
- UMP is a safe and effective method for renal calculi up to 20 mm.
- The technique features minimal disposable use and rapid patient recovery.
- UMP shows promise for lower calyx and pediatric renal stones, warranting further comparative studies.
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