Percutaneous Nephrolithotomy 500 Cases in High-Risk and Altered Renal Function Test: Our Experience at Tertiary Care Centre

Abstract

Introduction The study aims to evaluate the results of percutaneous nephrolithotomy (PCNL) in high-risk patients and patients with altered renal function tests (RFT) and complications in the management of renal stones in our hospital. Methods We retrospectively analyzed the outcomes of 500 patients who underwent PCNL between September 2020 and September 2023. We have analyzed data regarding patient details, investigations, PCNL puncture site, operative duration, number of punctures, stone-free rates (SFRs), duration of hospital stay, and complications. Results Out of 500 patients, 384 (76.87%) were males and 116 (23.13%) were females, with a male-to-female ratio of 3.32:1. The average age was 40.8±10.4 (mean±SD) (range: 24 to 74-years). The average operative time was 127±37 min (mean±standard deviation (SD)). The radiation exposure was from 1 min 30 sec to 3 min, with a mean (±SD) of 30 sec. The mean duration of the hospital stay was 2.7±1.6 days. Complete stone clearance was 87%, whereas SFRs defined by no identifiable stone on a plain radiograph or ultrasound or residual fragments <5 mm were 90.93%. The complication rate was 2.2%. Conclusion The usual course of treatment for renal stones larger than 2 cm is PCNL. Significant factors influencing the stone-free rate include stone burden, stone type, PCNL puncture, number of punctures, and operative time. With the development of several lithotripsy procedures and the miniaturization of instruments, PCNL continues to be an excellent therapeutic option for patients with large renal stones, comorbidities, and changed RFT, with tolerable rates of complications.