Mini-perc is miniaturized PCNL. To reduce the disadvantages of conventional percutaneous nephrolithotomy, a “mini-perc” technique was first developed for children and reported by Helal et al. Indication s for this operation are same as PCNL.The procedure is done under spinal or general anaesthesia.
Preoperative Intravenous Urogram(IVU) is done to check the location of the stone and confirm the functioning of the kidney. Other blood tests and work up to assess fitness for operation are done pre-operatively.
In this operation, a tact is made through the kidney from skin into the pelvicalyceal system to access the stone. But unlike in PCNL, in which 26 Fr tact is made, in this operation 15-18 Fr tract is made. Through this tract, a miniaturized telescope is used and with the help of Holmium laser the stone is broken and removed.