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PURPOSE We assessed the effectiveness and safety of holmium:YAG laser lithotripsy for managing upper urinary tract calculi in a prospective cohort of 598 patients. MATERIALS AND METHODS Ureteroscopic holmium:YAG laser lithotripsy was performed in 598 patients between 1993 and 1999. Calculi were located in the distal ureter in 39.6% of cases, mid ureter in(More)
Despite the development of nomograms designed to evaluate the prognosis of a patient with prostate cancer (CaP), the information has been limited to prostate-specific antigen (PSA), clinical stage, Gleason score, and tumor volume estimates. To improve our ability to predict prognosis, information regarding the molecular properties of CaP is needed.(More)
OBJECTIVE To describe the post-percutaneous nephrolithotomy (PNL) non-contrast-enhanced computed tomography (NCCT) findings and assessed their clinical significance. NCCT evaluates stone clearance after PNL and also reveals procedure-related changes. METHODS One hundred consecutive patients who underwent PNL were evaluated by NCCT one day post-procedure.(More)
BACKGROUND AND PURPOSE The approach to urinary-stone disease has changed dramatically over the last three decades with a transition from open surgery to minimally invasive procedures. Percutaneous nephrolithotripsy (PCNL) is a cornerstone of the treatment of kidney and selected upper-ureteral stones and continues to evolve with advances in techniques and(More)
PURPOSE Transitional cell carcinoma involving the lamina propria (stage T1) is associated with a high recurrence and progression rate with implications for patient survival and quality of life. A better understanding of the natural history of and treatment alternatives for this tumor may improve the outcome in patients with this stage of bladder cancer. (More)
PURPOSE To assess the long-term outcome of early endoscopic realignment (EER) of complete posterior urethral disruption. PATIENTS AND METHODS The study included 11 consecutive patients with complete posterior urethral disruption secondary to a road accident (n = 9) or a falling impact (n = 2). EER was performed using a simultaneous endoscopic transvesical(More)
PURPOSE A prospective randomized controlled trial was performed to determine whether stents may be eliminated after uncomplicated ureteroscopic lithotripsy for ureteral stones. MATERIALS AND METHODS A total of 58 patients underwent uncomplicated ureteroscopic intracorporeal lithotripsy. After stone fragmentation patients were randomized to a nonstented(More)
PURPOSE To assess the effect of nerve-sparing (NS) radical retropubic prostatectomy (RRP) on surgical margins and biochemical recurrence. PATIENTS AND METHODS Location and incidence of positive surgical margins, recurrence, and time to recurrence were assessed in a consecutive series of 734 men who underwent RRP for localized prostate cancer from 1992(More)
The present review focuses on technological advances and relevant research related to encrustation of biomaterials in the urinary tract. The importance of physical and chemical biomaterial type, biocompatibility, material coatings such as hydrogels, and infection related to alloplastic materials used in urological practice are discussed. Recent in-vitro and(More)
PURPOSE We assessed the effect of location and number of positive margins on biochemical progression in patients after radical retropubic prostatectomy for prostate cancer. MATERIALS AND METHODS The incidence, location and number of positive surgical margins as well as recurrence and time to recurrence were evaluated in a consecutive series of 734 men who(More)