World J Urol (2017) 35:1241–1246 DOI 10.1007/s00345-016-1990-4 ORIGINAL ARTICLE Residual stones after percutaneous nephrolithotomy: comparison of intraoperative assessment and postoperative non‑contrast computerized tomography 1 1 1 1 Ahmed M. Harraz · Yasser Osman · Ahmed R. EL‑Nahas · Amr A. Elsawy · 1 1 1 1 Islam Fakhreldin · Osama Mahmoud · Ahmed El‑Assmy · Ahmed A. Shokeir Received: 30 July 2016 / Accepted: 21 November 2016 / Published online: 24 December 2016 © Springer-Verlag Berlin Heidelberg 2016 Abstract Keywords Renal stones · Percutaneous nephrolithotomy · Objectives To compare the intraoperative surgeon perspec- Residual fragments · Surgeon opinion tive for detection of residual fragments (RFs) after percu- taneous nephrolithotomy (PNL) with postoperative NCCT. Methods A prospective study of adult patients who under- Introduction went PNL between March and September 2014 was con- ducted. Stone complexity was evaluated using the Guy’s Percutaneous nephrolithotomy (PNL) is the modality of stone score (GSS). All patients were evaluated by pre- and choice for large and complex renal stones. Residual frag- postoperative NCCT. After the procedure, the surgeon had ments (RFs) and stone-free outcome are major concerns been asked whether there were residual stones or not. The after PNL and have been the focus
World Journal of Urology – Springer Journals
Published: Dec 24, 2016
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