Vol. 43 (5): 932-938, September – October, 2017

doi: 10.1590/S1677-5538.IBJU.2016.0629


Eyyup Sabri Pelit 1, Bülent Kati 1, Cengiz Çanakci 2, Süleyman Sağir 1, Halil Çiftçi 1
1 Department of Urology, Harran University Faculty of Medicine, Sanliurfa, Turkey; 2 Bolvadin State Hospital, Istanbul, Turkey



Objectives: The present study was aim to evaluate the safety and efficacy of Mini-PNL to treat kidney stones in patients aged <3 years. This is the one of the largest series in the literature in this age group of patients.

Material and methods: From May 2012 to April 2016, the medical records of 74 infant patients who underwent mini-PNL for renal stones were reviewed retrospectively. All infants were evaluated with the plain abdominal radiograph, urinary ultrasound, noncontrast computerized tomography and/or intravenous urogram. Pre-operative, intraoperative and post-operative data were analyzed.

Results: A total of 74 infant (42 male, 32 female) with a mean age 21.5±8.2 (10-36) months were included in this study. The mean size of the stones was 22.0±5.9 (14-45) mm. A 17 Fr rigid pediatric nephroscope with a pneumatic intracorporeal lithotripsy were used through 20-22 Fr access sheath. The stone-free rate was 84.7% at 1 month after the operation. Mean operative time was 74.0 (40-140) min. Mean fluoroscopy screening time was as 4.3(3.1-8.6) min. Average hospitalization time was 3.8 (2-9) day.

Auxiliary procedures were performed to 11(15.3%) patients (7 extracorporeal shock wave lithotripsy, 3 re- percutaneous nephrolitotomy, 1 retrograde intrarenal surgery).

No major complication classified as Clavien IV-V observed in study group.

Conclusions: Mini-PNL with pneumatic intracorporeal lithotripsy can be performed safely and effectively to manage kidney stones in infants with high stone free rate and low complications.

Keywords: Nephrostomy, Percutaneous; Kidney Calculi; Infant

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