Pelvic Lymph Node Dissection With Polymer Ligation Clips Significantly Reduces Hospital Stay Compared to Vessel Sealer: A Retrospective Study.

Introduction Lymphocele is a typical complication of pelvic lymph node dissection (PLND) in robot-assisted radical prostatectomy (RARP). This study aimed to compare postoperative lymphatic leakage between the polymer ligation clip and vessel sealer, and evaluated the costs associated with the former. Methods The study enrolled patients who underwent RARP with PLND at our institution between April 2018 and March 2023 and were treated with a vessel sealer (LigaSure Blunt Tip 44 NC; Medtronic, Dublin, Ireland) until September 2021, and Hem-o-lok polymer ligation clips(Teleflex, Wayne, PA, USA) thereafter.

A new technique for ureteral resection to prevent urine dissemination and cancer seeding.

Introduction: We describe a case in which robot-assisted radical ureterectomy was performed for residual ureteral recurrence in a postoperative patient with renal pelvis cancer.

Case Presentation: A 75-year-old woman underwent laparoscopic radical nephroureterectomy for left renal pelvic cancer at another hospital. During follow-up, a papillary tumor was found in the bladder on cystoscopy, and a continuous tumor was found in the residual ureter on computed tomography.

Oncologic and Functional Outcomes of Salvage Robot-Assisted Radical Prostatectomy: Report of the First 10 Cases.

Background: Salvage robot-assisted radical prostatectomy (sRARP) after PSA failure in patients who underwent initial radiotherapy or focal therapy has rarely been reported in Japan. We aimed to report the oncologic and functional outcomes of the first 10 cases of sRARP.

Methods: Ten patients underwent sRARP after failing to respond to initial radiotherapy or focal therapy.

Novel clipping procedure for preventing post-operative inguinal hernia in robot-assisted radical prostatectomy.

Objectives: Inguinal hernia (IH) is a common postoperative complication after robot-assisted radical prostatectomy (RARP). We developed a novel clipping technique for the prevention of IH developing after RARP.

Methods: This cohort included 759 consecutive patients who underwent RARP for prostate cancer at the University of Tokyo Hospital between January 2011 and December 2018.

Initial surgical performance in robot-assisted radical prostatectomy is associated with clinical outcomes and learning curves.

Background: The association between surgical performance ratings and clinical outcomes in robotic surgery is poorly understood. Additionally, no studies have reported on the relationship between the surgeon's initial case-skill evaluation and the learning curve in robot-assisted surgery. We evaluated whether an objective surgical technique evaluation score for initial robot-assisted radical prostatectomy (RARP) was associated with clinical outcomes and surgeons' learning curves.

Upper extremity contact pressure measurement in robot-assisted pelvic surgery.

Upper extremity complications are often a problem in robot-assisted pelvic surgery (RAPS) with the lithotomy-Trendelenburg position (LT-position). This study focused on upper extremity contact pressure (UEP) and examined the relationship between UEP and upper extremity complications. From May 2020 to April 2022 at the University of Tokyo Hospital, UEP was measured in 155 patients undergoing RARP and 20 patients undergoing RARC.

A Safer Method for Disinfection of Bacillus Calmette-Guerin-Containing Urine: A Prospective, Randomized Study.

Introduction: The aim of the study was to examine whether disinfection of bacillus Calmette-Guerin-containing urine with etaprocohol® (ethanol 76.9-81.4 vol % and isopropanol as an additive) is safer than disinfection with sodium hypochlorite.

Development of risk-score model in patients with negative surgical margin after robot-assisted radical prostatectomy.

A total of 739 patients underwent RARP as initial treatment for PCa from November 2011 to October 2018. Data on BCR status, clinical and pathological parameters were collected from the clinical records. After excluding cases with neoadjuvant and/or adjuvant therapies, presence of lymph node or distant metastasis, and positive SM, a total of 537 cases were eligible for the final analysis.

Factors affecting the use of a three-dimensional model during robot-assisted partial nephrectomy.

Introduction: This study aimed to identify cases that require a three-dimensional-printed kidney model in robot-assisted partial nephrectomy.

Methods: We enrolled 93 patients undergoing robot-assisted partial nephrectomy for renal tumors at a single institution between November 2018 and May 2021. The endpoints were how often and how long the surgeon consulted the three-dimensional-printed model, determined using intraoperative video.

Current status of robot-assisted total pelvic exenteration focusing on the field of urology: a clinical practice review.

Total pelvic exenteration (TPE) is a highly invasive surgery associated with high rates of perioperative morbidity and mortality and is commonly performed for several types of locally advanced or recurrent pelvic cancers. It involves multivisceral resection, including the rectum, sigmoid colon, bladder, prostate, uterus, vagina, or ovaries, and urologists normally perform radical cystectomy or radical prostatectomy and urinary diversion in collaboration with colorectal surgeons and gynecologists. In the urological field, robot-assisted surgeries have been widely performed as one of the main minimally invasive procedures because of their superior perioperative or oncological outcomes compared to open or laparoscopic surgeries.

Prostate-specific antigen doubling time predicts the efficacy of site-directed therapy for oligoprogressive castration-resistant prostate cancer.

Background: In recent years, site-directed therapies (SDTs) targeting progressive lesions in patients with oligometastatic prostate cancer have attracted attention. However, whether they effectively treat oligoprogressive castration-resistant prostate cancer (CRPC) remains unclear. Here, we investigated the efficacy of SDT in patients with oligoprogressive CRPC and identified prognostic factors.

Early recovery of urinary continence after robot-assisted radical prostatectomy is associated with membranous urethra and neurovascular bundle preservation.

Objectives: We investigated the correlation between surgical outcomes and postoperative urinary continence recovery in robot-assisted radical prostatectomy (RARP).

Methods: Patients who underwent RARP in our institution (n = 195) were included in this study. Preserved urethral length (PUL) was assessed during the procedure.

Six-year outcomes of robot-assisted radical prostatectomy versus volumetric modulated arc therapy for localized prostate cancer: A propensity score-matched analysis.

Background: Although robot-assisted radical prostatectomy (RARP) and intensity-modulated radiotherapy are the leading respective techniques of prostatectomy and radiotherapy for localized prostate cancer, almost no study has directly compared their outcomes; none have compared mortality outcomes.

Methods: We compared 6‑year outcomes of RARP (n = 500) and volumetric modulated arc therapy (VMAT, a rotational intensity-modulated radiotherapy, n = 360) in patients with cT1-4N0M0 prostate cancer. We assessed oncological outcomes, namely overall survival (OS), cancer-specific survival (CSS), radiological recurrence-free survival (rRFS), and biochemical recurrence-free survival (bRFS), using propensity score matching (PSM).

Lower bleeding volume contributes to decreasing surgical site infection in radical cystectomy: A propensity score-matched comparison of open versus robot-assisted radical cystectomy.

Objectives: To compare the incidence of surgical site infections (SSI) between robot-assisted and open radical cystectomies and investigate the risk factors for SSI after radical cystectomies.

Methods: Consecutive patients who underwent radical cystectomy between July 2008 and December 2022 were retrospectively reviewed. The prevalence and characteristics of SSI after open and robot-assisted radical cystectomies were compared, and the risk factors for SSI were investigated using propensity score matching.

Identification of DNA damage response-related genes as biomarkers for castration-resistant prostate cancer.

Although hormone therapy is effective for the treatment of prostate cancer (Pca), many patients develop a lethal type of Pca called castration-resistant prostate cancer (CRPC). Dysregulation of DNA damage response (DDR)-related genes leads to Pca progression. Here, we explored DDR-related signals upregulated in CRPC tissues.

Enfortumab vedotin versus platinum rechallenge in post-platinum, post-pembrolizumab advanced urothelial carcinoma: A multicenter propensity score-matched study.

Objective: Enfortumab vedotin (EV) was approved for advanced urothelial carcinoma (UC) in 2021 after the EV-301 trial showed its superiority to non-platinum-based chemotherapy as later-line treatment after platinum-based chemotherapy and immune checkpoint inhibitors including pembrolizumab. However, no study has compared EV with rechallenging platinum-based chemotherapy (i.e.

Left testicular and pulmonary metastases of mucinous adenocarcinoma of the prostate after robot-assisted radical prostatectomy.

Introduction: We present a case of mucinous adenocarcinoma of the prostate with testicular and lung metastases following robot-assisted radical prostatectomy, androgen deprivation therapy, and radiotherapy.

Case Presentation: A 73-year-old man with a prostate-specific antigen level of 4.3 ng/mL was diagnosed with prostate cancer.

Validation of a drug-based score in advanced urothelial carcinoma treated with pembrolizumab.

To validate a 'drug score' that stratifies patients receiving immunotherapy based on concomitant medications (antibiotics/proton pump inhibitors/corticosteroids) in urothelial carcinoma (UC). We assessed oncological outcomes according to the drug score in 242 patients with advanced UC treated with pembrolizumab. The drug score classified patients into three risk groups with significantly different survivals.