Jae Hyun Jung

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BACKGROUND The objective was to validate an online nomogram developed based on the French collaborative national database on upper urinary tract urothelial carcinoma (UUT-UC) using a different cohort. METHODS The study comprised 328 patients with UUT-UC who underwent radical nephroureterectomy. The discrimination of models was quantified using Harrell's(More)
OBJECTIVES The Seoul National University Renal Stone Complexity (S-ReSC) scoring system was developed to predict the stone-free rate (SFR) after single-tract percutaneous nephrolithotomy (PCNL). This study is an external validation of this scoring system. MATERIALS AND METHODS A retrospective review included 327 patients who underwent PCNL at 2 tertiary(More)
PURPOSE There are only a few reports of extramammary Paget disease (EMPD) of the external genitalia because it is a rare malignancy. We investigated patients with EMPD of the penis and scrotum and report the outcome of surgical management. MATERIALS AND METHODS From 2000 to 2012, a total of 19 patients diagnosed as having penile and scrotal EMPD underwent(More)
PURPOSE To investigate surgical outcomes between retrograde intrarenal surgery (RIRS) and percutaneous nephrolithotomy (PNL) groups for a main stone sized 15 to 30 mm and located in the lower-pole calyx. MATERIALS AND METHODS Patients who underwent PNL or RIRS for a main stone sized 15 to 30 mm and located in the lower-pole calyx were retrospectively(More)
INTRODUCTION This study investigated the learning curve of a single-session retrograde intrarenal surgery (RIRS) in patients with mid-sized stones. Competence and trainee proficiency for RIRS was assessed using cumulative sum analysis (CUSUM). MATERIALS AND METHODS The study design and the use of patients' information stored in the hospital database were(More)
PURPOSE To report the outcome of laparoscopic pyelo- and ureterolithotomies with the aid of flexible nephroscopy. MATERIALS AND METHODS A retrospective analysis was performed in 71 patients with complex renal stones or large and impacted proximal ureteral stones. Patients underwent laparoscopic pyelo- or ureterolithotomies with or without the removal of(More)
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