• Bilal Eryildirim, Eyup Veli Kucuk, Gokhan Atis, Metin Ozturk, Temucin Senkul, Murat Tuncer, Ahmet Tahra, Turgay Turan, Orhan Koca, Ferhat Ates, Omer Yilmaz, Cenk Gurbuz, and Kemal Sarica.
• Health Sciences University, Dr. Lütfi Kirdar Training and Research Hospital, Urology Clinic, Istanbul. bilaleryildirim@yahoo.com.
• Arch Ital Urol Androl. 2018 Sep 30; 90 (3): 149-154.

AimTo assess the efficacy and safety of two different techniques (Percutaneous nephrolithotomy (PNL) vs Retrograde intrarenal surgery (RIRS)) in the management of stones in patients with horseshoe kidneys (HSK).Patients And MethodsDepartmental files of 88 cases with radiopaque kidney stones in horseshoe kidneys undergoing two different approaches (PNL vs RIRS) were evaluated with respect to the success and complication rates of in a retrospective manner. In addition to the factors related with the procedures (success and complication rates, additional procedures), patient and stone characteristics were all well evaluated. Findings obtained in both groups were evaluated in a comparative manner with respect to the statistical significance.ResultsStone free rates were comparable in both groups after 1-week period (81.6% PNL vs 80% RIRS). As well as 3 months evaluation (84.2% PNL and 82.0% RIRS). The percentage of the cases with residual fragments (> 4 mm) were similar in both groups and while all PNL procedures were completed in one session, mean number of RIRS sessions was higher (1.22 ± 0.05). Mean duration of the procedure was slightly higher in RIRS group and based on Clavien scoring system, despite a higher risk of Hb drop noted in patients treated with PNL, all complication rates were found to be similar in both groups.ConclusionOur results demonstrate that of the available minimally invasive treatment alternatives, both PNL and RIRS could be safe and effective alternatives for renal stone removal in patients with HSK.

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