Outcomes of Percutaneous Nephrolithotomy in Patients with Anomalous Kidney

Objective: To evaluate the success and complication rate of percutaneous nephrolithotomy (PNL) performed in patients with congenital anomalies\udsuch as horseshoe kidneys, crossed renal ectopia and renal malrotation.\udMaterials and Methods: Data of 1472 patients who underwent PNL operation in our clinic between January 2007 and January 2015 were analyzed\udretrospectively. PNL was performed in 28 renal units of 26 patients with congenital renal anomalies. Demographic data of the patients, type of\udcongenital renal anomalies, success rate of PNL and complications were evaluated.\udResults: 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\udpatients 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\ud109 (±11.0) minutes and fluoroscopy time was 191 (±48.4) seconds. The stone-free rate detected postoperatively by computed tomography was\ud55%. Complications included postoperative fever in 3 patients, postoperative arteriovenous fistula in 1 patient, and intraoperative colon injury in\ud1 patient.\udConclusion: PNL is a safe and effective method in the treatment of stones in kidneys with congenital anomalies