Outcome of Percutaneous Nephrolithotomy in a Tertiary Care Center in North Karnataka

Sushant Deole, Shridhar C. Ghagane, Priyeshkumar Patel, R.B. Nerli, Shashank D. Patil, Neeraj S. Dixit


Background: The study aims to evaluate the results of percutaneous nephrolithotomy (PCNL) in terms of patient and stone characteristics, stone clearance, and complications in the management of renal stones in our hospital.

Methods: We retrospectively analysed the outcomes of 320 patients who underwent PCNL between December 2017 and December 2019. Data analysed included patient demographics, investigations, site of calyceal puncture, operative time, number of tracts, stone-free rates (SFRs), hospital stay, and complications.

Results: Out of 320 patients, 246 (76.87%) were males and 74 (23.13%) were females with male to female ratio 3.32:1. The mean age was 36.4 11.8 years (range: 18 - 74). The mean operative time was 120 40 min ( standard deviation (SD)). The radiation exposure time ranged from 1 min 30 s to 30 min with a mean ( SD) of 8.2 min ( 3.6). The mean hospital stay duration was 3.2 1.6 days. Complete stone clearance was 92.18% whereas SFRs defined by no identifiable stone on plain radiograph or ultrasound or residual fragments < 5 mm was 95.93%. The complication rate was 11.8%.

Conclusions: PCNL is the standard treatment for large renal stones > 2 cm. Stone burden, type of stone, access puncture, and several tracts, and operative time significantly affect SFRs. With the miniaturization of instruments and the development of different lithotripsy techniques, PCNL remains a very good treatment for large renal stones with acceptable complication rates.

World J Nephrol Urol. 2020;9(2):35-39
doi: https://doi.org/10.14740/wjnu412


Percutaneous nephrolithotomy; Stone-free rates; Flexible nephroscope; Staghorn stone

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