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

Abstract

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.