Outcomes of Percutaneous Nephrolithotomy in Patients with Anomalous Kidney

Abstract

Objective: To evaluate the success and complication rate of percutaneous nephrolithotomy (PNL) performed in patients with congenital anomalies such as horseshoe kidneys, crossed renal ectopia and renal malrotation. Materials and Methods: Data of 1472 patients who underwent PNL operation in our clinic between January 2007 and January 2015 were analyzed retrospectively. PNL was performed in 28 renal units of 26 patients with congenital renal anomalies. Demographic data of the patients, type of congenital renal anomalies, success rate of PNL and complications were evaluated. Results: Out of 28 PNL-performed renal units, 14 were found out to be with fusion and 14 with rotation anomalies. The average age of the patients was 53 (±1.97) years, 19 were male and 7 were female with an average stone size of 515 (±87.4) mm2. The average operating time was 109 (±11.0) minutes and fluoroscopy time was 191 (±48.4) seconds. The stone-free rate detected postoperatively by computed tomography was 55%. Complications included postoperative fever in 3 patients, postoperative arteriovenous fistula in 1 patient, and intraoperative colon injury in 1 patient. Conclusion: PNL is a safe and effective method in the treatment of stones in kidneys with congenital anomalies.

Keywords

• Anomalous kidneys
• complication
• percutaneous nephrolithotomy