Ultra-Mini PCNL (UMP)

  • Janak D. Desai


For kidney stone removal we have the options of PCNL, RIRS, and ESWL. PCNL is the clear winner in giving better stone free rates but it is associated with morbidity, mainly, bleeding. The question is how can we do it better? We can do it better by miniaturization. Ultra-mini PCNL (UMP) was proposed in 2011 and the first article was published in BJUI in 2013. UMP has CE certification and also FDA approval. UMP is a technique which is suited to remove small and midsize stones—upto 2 cm. It needs a holmium laser for stone disintegration, and trials are on to use pneumatic and ultrasonic energy. The instruments of UMP are specially designed to disintegrate the stone, and the removal is done by creating a vortex in the PC system by a specially designed outer sheath.


Ultra-mini PCNL (UMP) Percutaneous nephrolithotripsy (PCNL) Retrograde intra-renal surgery (RIRS) Uretero-renoscopy (URS) 

Supplementary material

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Janak D. Desai
    • 1
  1. 1.Samved HospitalAhmedabadIndia

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