Our experience of micropercutaneous nephrolithotripsy application in the treatment large kidney stones

Introduction. The article presents the results of micropercutaneous nephrolithotripsy (Micro-PNLT) application in the large stones treatment. This method was first described by M.R. Desai in 2011, and since then the MicroPNLT potential in the urolithiasis treatment is actively discussed in the medical literature. The Micro-PNLT kit was registered for use on the territory of the Russian Federation in 2018. Materials and methods. 43 patients with urolithiasis and a 20 mm or more stone (average stone size 21.4±1.3) underwent MicroPNLT in the SBI of public health “St. Luke's Clinical Hospital”. Results. The average stone size was 21.4±1.3 mm (20-25 mm), the average stone density - 1191 ±1184 HU, the average operation time - 89.5± 12 min, the preoperative hemoglobin level - 138±10.5, hemoglobin after surgery - 136±10.9. JJ stent with traction of the stent thread through the skin of the lumbar was placed intraoperatively in 30 patients; three patients received 8 Ch nephrostomy, which was removed on the second day after the operation; 10 patients completed the operation without installing any drains...