Efficiency of ultra-minipercutaneous nephrolithotripsy in the treatment of non-coral kidneys


  • V.A. Mekh Donetsk national medical university, Ukraine




kidney non-coral stones, micropercutaneous nephrolithotripsy, standard percutaneous nephrolithotripsy, stone free rate


We examined 167 patients who were treated on the basis of the clinic “Health Code” in Mariupol in 2014-2017. Stone sizes ranged from 10 to 38 mm, an average of 26.94±0.56 mm. The stone-free status was achieved in 59 (98.33±1.65%) patients with a stone size of 10-16 mm, in the group where the size of the kidney stones ranged from 17 to 30 mm, the stone-free status was achieved in 62 (100%) patients, while with the largest concrement sizes, the goal of the operation was achieved in 36 (80.0±5.96%) patients (p <0.05). Mini-PNL is a highly effective method of treating non-coral-shaped kidney stones with their sizes exceeding 1 cm. When the size of the kidney stone is more than 30 mm, it is noted as a decrease in the rate of stone disintegration to 29.73±2.64 minutes, separation of relatively large fragments from it, a significant an increase in the time of evacuation of fragments from the kidney cavity, on average, to 70.71±2.75. At the same time, the frequency of “stone free” status is 76.59±4.31%. When the size of the kidney calculus is more than 3 mm, it is advisable to use a “traditional” PNL with a nephroscope tube diameter of 22-24 Fr.


Vozianov, S.O., Sagalevich, A.I. Juran, B.V. et al. (2015). Konkrementy proksymalnoho viddilu sechovodu – kontaktna ureterolitotrypsiya chy mini-perkutanna nefrolitotrypsiya [Contractions of the proximal ureter – contact ureterolithotripsy or mini percutaneous nephrolithotripsy]. Zdorove muzhchyny – Health is a man, 2, 15–17 [in Ukrainian].

Sagalevich, A.I., Derkach, I.A., & Shaporenko, E.V. (2012). Maloinvazivnyye metody lecheniya dvukhstoronnego nefrolitiaza [Minimally invasive treatment of bilateral nephrolithiasis]. Urologiya – Urology, 14(54), 25–29 [in Russian].

Bagcioglu, M., Demir, A., Sulhan, H. et. al. (2016). Comparison of flexible ureteroscopy and micropercutaneous nephrolithotomy in terms of cost-effectiveness: analysis of 111 procedures. Urolithiasis, 44(4), 339–344. doi: 10.1007/s00240-015-0828-7.

Ferrnstrцm, I., & Johansson, B. (2016). Percutaneous pyelolithotomy: a new extraction technique. Scand. J. Urol. Nephrol, 10(3), 257–265. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/1006190.

Geraghty, J.P., & Somani, B.K. (2017). Worldwide Trends of urinary stone disease treatment over the last two decades: a systematic review. J. Endourol, 31(6), 547–556. doi: 10.1089/end.2016.0895.

Sabnis, R.B., Ganesamoni, R., Doshi, A., et al. (2013). Micropercutaneous nephrolithotomy (microperc) vs retrograde intrarenal surgery for the management of small renal calculi: a randomized controlled trial. BJU Int., 112(3), 355–361. doi: 10.1111/bju.12164.