[EVALUATION OF THE EFFICACY OF STANDARD PERCUTANEOUS NEPHROLITHOTRIPSY IN STAGHORN AND MULTIPLE NEPHROLITHIASIS].

In staghorn and multiple nephrolithiasis, method of choice for removing kidney stones is percutaneous nephrolithotripsy (PCNL). However, it may be accompanied by the leaving off of stones or fragments in pyelocaliceal system. The study was aimed to the evaluation of possibilities of the standard PCNL in terms of complete removal of staghorn and multiple kidney stones. Percutaneous nephrolithotripsy was made by a single access using standard method in 99 patients with staghorn and multiple kidney stones. The average age of the patients ranged from 9 to 61 (34.4±3.2) years. Staghorn stones were found in 80 (80.8%) patients, staghorn stones with multiple stones - in 19 (19.2%) patients. Stone size ranged from 18 to 94 (49.6±2.3) mm. The use of standard PCNL to remove staghorn and multiple kidney stones as monotherapy has allowed complete removing of the stones in 74 (74.7%) patients. The average length of stay of patients in hospital after surgery was 5.9±0.3 bed-days (2 to 31), medium time for removal of drains after surgery - 4.3±0.7 days. Intraoperative blood loss was observed in 11 (11.1%) patients, its volume ranged from 150 to 1130 (407.2±28.8) ml. In 8 (8.1%) cases, bleeding regarded as a complication, because it required replacement therapy. Postoperative complications were observed in 19 (19.2%) patients, of which 8 (8.1%) had bleeding, and 11 (11.1%) had exacerbation of urinary tract infection. Thus, the standard PCNL as monotherapy in staghorn and multiple nephrolithiasis serves as alternative method for removing stones. The results of treatment depend on the size and stereometric configuration of staghorn stones. The most common causes of residual stones are inaccessibility of calyx by endoscope and intraoperative bleeding.