Extraprostatic Extension Is Extremely Rare for Contemporary Gleason Score 6 Prostate Cancer.

Background: A significant proportion of men with Gleason score 6 (GS6) prostate cancer undergo treatment with radiation or surgery.

Objective: To assess pathologic stage of pure GS6 at radical prostatectomy (RP).

Design, Setting, And Participants: In the period 2003-2014, 7817 patients underwent RP at two institutions.

Positive Surgical Margins Increase Risk of Recurrence after Partial Nephrectomy for High Risk Renal Tumors.

Purpose: The clinical significance of a positive surgical margin after partial nephrectomy remains controversial. The association between positive margin and risk of disease recurrence in patients with clinically localized renal neoplasms undergoing partial nephrectomy was evaluated.

Materials And Methods: A retrospective multi-institutional review of 1,240 patients undergoing partial nephrectomy for clinically localized renal cell carcinoma between 2006 and 2013 was performed.

Prognostic Model for Predicting Survival in Patients with Disease Recurrence Following Radical Cystectomy.

Background: Although the natural history of urothelial carcinoma of the bladder (UCB) from radical cystectomy (RC) to disease recurrence (DR) has been investigated intensively, the course of patients who have experienced DR after RC for UCB remains poorly understood.

Objective: To evaluate the prognostic value of the Bajorin criteria that consists of two risk factors: Karnofsky performance status (KPS) and the presence of visceral metastases (VMs) in patients with DR after RC for UCB. Furthermore, to identify additional factors associated with cancer-specific mortality (CSM) and thus build a multivariable model to predict survival after DR.

Robotic-assisted pelvic lymph node dissection for prostate cancer: frequency of nodal metastases and oncological outcomes.

Purpose: Limited data are available regarding the oncologic efficacy of pelvic lymph node dissection (PLND) performed during robotic-assisted laparoscopic prostatectomy (RALP) for prostate cancer. We aimed to determine the frequency of pelvic lymph node metastasis and oncological outcomes following RALP with PLND in patients who did not receive adjuvant androgen deprivation therapy (ADT).

Methods: We retrospectively reviewed the records of 1740 consecutive patients who underwent RALP and extended PLND.

Does robot-assisted laparoscopic ileocystoplasty (RALI) reduce peritoneal adhesions compared with open surgery?

Objectives: To compare perioperative outcomes between open ileocystoplasty and robot-assisted laparoscopic ileocystoplasty (RALI) in a porcine model, as objective data comparing outcomes between these two approaches in children with neurogenic bladder are lacking. We specifically examined differences in postoperative peritoneal adhesion formation between the groups.

Materials And Methods: In all, 20 pigs were assigned to an open ileocystoplasty or RALI study arm.

Development and multi-institutional validation of an upgrading risk tool for Gleason 6 prostate cancer.

Background: Many patients with low-risk prostate cancer (PC) who are diagnosed with Gleason score 6 at biopsy are ultimately found to harbor higher grade PC (Gleason ≥ 7) at radical prostatectomy. This finding increases risk of recurrence and cancer-specific mortality. Validated clinical tools that are available preoperatively are needed to improve the ability to recognize likelihood of upgrading in patients with low-risk PC.

Is pelvic plexus nerve documentation feasible during robotic assisted laparoscopic ureteral reimplantation with extravesical approach?

Purpose: Urinary retention is a known complication of using an extravesical approach for ureteral reimplantation, especially in bilateral cases. The etiology may be secondary damage to pelvic nerves during ureteral dissection. Recent literature suggests that it is possible to visually identify these nerves during a robotic assisted laparoscopic approach.

Clinical and histologic predictors of renal function decline after laparoscopic partial nephrectomy.

Background And Purpose: Clinical and surgical factors predict renal function decline after laparoscopic partial nephrectomy (LPN). Additional histopathologic predictors may be found in the specimen's nonneoplastic tissue but were not studied. This study investigated the significance of histologic findings in addition to other known predictors of renal function after LPN.

Impact of prostate weight on probability of positive surgical margins in patients with low-risk prostate cancer after robotic-assisted laparoscopic radical prostatectomy.

Objective: To evaluate the impact of prostate weight (PW) on probability of positive surgical margin (PSM) in patients undergoing robotic-assisted radical prostatectomy (RARP) for low-risk prostate cancer.

Methods: The cohort consisted of 690 men with low-risk prostate cancer (clinical stage T1c, prostate-specific antigen <10 ng/mL, biopsy Gleason score ≤6) who underwent RARP with bilateral nerve-sparing at our institution by 1 of 2 surgeons from 2003 to 2009. PW was obtained from the pathologic specimen.