Summarizing the evidence for robotic-assisted bladder neck reconstruction: Systematic review of patency and incontinence outcomes.

Objective: Bladder neck contracture and vesicourethral anastomotic stenosis are difficult to manage endoscopically, and open repair is associated with high rates of incontinence. In recent years, there have been increasing reports of robotic-assisted bladder neck reconstruction in the literature. However, existing studies are small, heterogeneous case series. The objective of this study was to perform a systematic review of robotic-assisted bladder neck reconstruction to better evaluate patency and incontinence outcomes. Methods: We performed a systematic review of PubMed from first available date to May 2023 for all studies evaluating robotic-assisted reconstructive surgery of the bladder neck in adult men. Articles in non-English, author replies, editorials, pediatric-based studies, and reviews were excluded. Outcomes of interest were patency and incontinence rates, which were pooled when appropriate. Results: After identifying 158 articles on initial search, we included only ten studies that fit all aforementioned criteria for robotic-assisted bladder neck reconstruction. All were case series published from March 2018 to March 2022 ranging from six to 32 men, with the median follow-up of 5-23 months. A total of 119 patients were included in our analysis. A variety of etiologies and surgical techniques were described. Patency rates ranged from 50% to 100%, and pooled patency was 80% (95/119). De novo incontinence rates ranged from 0% to 33%, and pooled incontinence was 17% (8/47). Our findings were limited by small sample sizes, relatively short follow-ups, and heterogeneity between studies. Conclusion: Despite limitations, current available evidence suggests comparable patency outcomes and improved incontinence outcomes for robotic bladder neck reconstruction compared to open repair. Additional prospective studies with longer-term follow-ups are needed to confirm these findings.

Pilot Test of A Gender-conscious Sexual Health Intake Questionnaire: Increasing Inclusivity and Mitigating Bias in Sexual History Taking.

Background: Sexual health is critical to overall health, yet sexual history taking is challenging. LGBTQ+ patients face additional barriers due to cis/heteronormativity from the medical system. We aimed to develop and pilot test a novel sexual history questionnaire called the Sexual Health Intake (SHI) form for patients of diverse genders and sexualities. Methods: The SHI comprises four pictogram-based questions about sexual contact at the mouth, anus, vaginal canal, and penis. We enrolled 100 sexually active, English-speaking adults from a gender-affirming surgery clinic and urology clinic from November 2022 to April 2023. All surveys were completed in the office. Patients also answered five feedback questions and 15 questions from the Patient-Reported Outcomes Measurement Information System Sexual Function and Satisfaction (PROMIS-SexFS) survey as a validated comparator. Results: One hundred patients aged 19-86 years representing an array of racial/ethnic groups, gender identities, and sexuality completed the study. Forms of sexual contact varied widely and included all possible combinations asked by the SHI. Feedback questions were answered favorably in domains of clinical utility, inclusiveness of identity and anatomy, and comprehensiveness of forms of sexual behavior. The SHI captured more positive responses than PROMIS-SexFS in corresponding questions about specific types of sexual activity. The SHI also asks about forms of sexual contact that are not addressed by PROMIS-SexFS, such as penis-to-clitoris. Conclusions: SHI is an inclusive, patient-directed tool to aid sexual history taking without cisnormative or heteronormative biases. The form was well received by a diverse group of participants and can be considered for use in the clinical setting.

Robotic-assisted Posterior Urethroplasty: Outcomes From 105 Men in a Single-center Experience.

OBJECTIVE: To determine surgical outcomes in a large of cohort men undergoing robotic-assisted posterior urethroplasty (RPU), which has been described in small series as a viable option. MATERIALS AND METHODS: We performed a retrospective review of all 105 men who underwent RPU from October 2014 to August 2022 at a single institution. We evaluated postoperative outcomes, including complications; surgical success defined as no need for reintervention; and incontinence requiring artificial urinary sphincter placement. We performed descriptive statistics and chi-square testing to determine if outcomes were associated with certain posterior urethral disease etiologies. RESULTS: Mean follow-up time was 18.7months. Over half of patients (57.1%) received prior pelvic radiation. The most common reconstructive techniques were excision and primary anastomosis (n = 45, 30.0%), resitting of the bladder neck (n = 26, 24.8%), Y-V plasty (n = 21, 20.0%), and buccal mucosal graft urethroplasty (n = 14, 13.3%). Forty-one patients (39.0%) required a combined abdominoperineal approach. Seven patients (6.7%) had ≥CD grade 3 complications within 30days. Thirty patients (28.6%) developed incontinence with subsequent artificial urinary sphincter placement. One-quarter (24.8%) of patients required at least one subsequent surgical reintervention. CONCLUSION: In the largest RPU cohort to date, surgical success rates were similar and continence rates were improved compared to open surgery and align with existing robotic series, adding to the growing body of evidence demonstrating advantages of RPU.

Preoperative stricture length measurement does not predict postoperative outcomes in robotic ureteral reconstructive surgery.

PURPOSE: We sought to determine whether preoperative stricture length measurement affected the choice of procedure performed, its correlation to intraoperative stricture length, and postoperative outcomes. METHODS: The Collaborative of Reconstructive Robotic Ureteral Surgery (CORRUS) database was queried for patients undergoing robotic ureteral reconstructive surgery from 2013 to 2021 who had surgical stricture length measurement. From this cohort, we identified patients with and without preoperative stricture length measurement via retrograde pyelogram or antegrade nephrostogram. Outcomes evaluated included intraoperative complications, 30-day complications greater than Clavien-Dindo grade II, hardware-free status, and need for additional procedures. RESULTS: Of 153 patients with surgical stricture length measurements, 102 (66.7%) had preoperative radiographic measurement. No repair type was more likely to have preoperative measurement. The Pearson correlation coefficient between surgical and radiographic stricture length measurements was + 0.79. The average surgical measurement was 0.71 cm (± 1.52) longer than radiographic assessment. Those with preoperative imaging waited on average 5.0 months longer for surgery, but this finding was not statistically significant (p = 0.18). There was no statistically significant difference in intraoperative complications, 30-day complication rates, hardware-free status at last follow-up, or need for additional procedures between patients with and without preoperative measurement. The only significant predictive factor was preoperative stricture length on 30-day postoperative complications. CONCLUSIONS: Despite relatively high prevalence of preoperative radiographic stricture length measurement, there are few measures where it offers clinically meaningful diagnostic information towards the definitive surgical management of ureteral stricture disease.

Single-port robotic-assisted ureteral reconstruction for management of strictures after renal transplantation.

Ureteral strictures are a common and often challenging complication of renal transplantation. The use of single-port (SP) robotic-assisted laparoscopic surgery is a novel approach in the management of these patients. Here we describe 3 patients with stricture of the transplant ureter causing hydronephrosis and allograft dysfunction, whose ureteral reconstructions were successfully performed using the SP robotic-assisted laparoscopic approach. Two patients underwent transplant-to-native ureteroureterostomy and 1 patient underwent ureteroneocystostomy. We demonstrate that the use of concurrent ureteroscopy and near-infrared fluorescence enables safe and rapid identification of native and transplant ureters. In addition, side-to-side anastomosis of transplant-to-native ureters allows for preservation of ureteral vasculature. In this limited series, the SP robotic platform demonstrates great promise in simplifying and streamlining our approach to ureteral strictures in this patient population.

Animal models of naturally occurring stone disease.

The prevalence of urolithiasis in humans is increasing worldwide; however, non-surgical treatment and prevention options remain limited despite decades of investigation. Most existing laboratory animal models for urolithiasis rely on highly artificial methods of stone induction and, as a result, might not be fully applicable to the study of natural stone initiation and growth. Animal models that naturally and spontaneously form uroliths are an underused resource in the study of human stone disease and offer many potential opportunities for improving insight into stone pathogenesis. These models include domestic dogs and cats, as well as a variety of other captive and wild species, such as otters, dolphins and ferrets, that form calcium oxalate, struvite, uric acid, cystine and other stone types. Improved collaboration between urologists, basic scientists and veterinarians is warranted to further our understanding of how stones form and to consider possible new preventive and therapeutic treatment options.

Thrombi Within the Urinary Tract May Serve as a Nidus for Rapid Stone Recurrence: A Report of Two Cases.

Background: Nephrolithiasis is increasingly becoming one of the most prevalent and costly urologic conditions in the United States. The most common type of kidney stone in humans is calcium oxalate, accounting for 75% of idiopathic stones in first-time stone formers. Stone formation is typically a gradual process; however, certain factors can accelerate stone development and recurrence. Case Presentation: We present two cases of adult white men who were found to have rapidly recurrent symptomatic kidney stones that were ultimately determined to be comprised of an outer mineral shell with an inner core of blood clot. Both patients had a history of nephrolithiasis and recent hematuria. Urine supersaturation values at time of presentation supported formation of kidney stones. Conclusion: Thrombi within the urinary tract can serve as a nidus for formation of multiple types of kidney stones, including calcium oxalate and uric acid stones. Stones arising from such a nidus may exhibit unusually rapid growth.

The Use of Biomarkers in Prostate Cancer Screening and Treatment.

Prostate cancer screening and diagnosis has been guided by prostate-specific antigen levels for the past 25 years, but with the most recent US Preventive Services Task Force screening recommendations, as well as concerns regarding overdiagnosis and overtreatment, a new wave of prostate cancer biomarkers has recently emerged. These assays allow the testing of urine, serum, or prostate tissue for molecular signs of prostate cancer, and provide information regarding both diagnosis and prognosis. In this review, we discuss 12 commercially available biomarker assays approved for the diagnosis and treatment of prostate cancer. The results of clinical validation studies and clinical decision-making studies are presented. This information is designed to assist urologists in making clinical decisions with respect to ordering and interpreting these tests for different patients. There are numerous fluid and biopsy-based genomic tests available for prostate cancer patients that provide the physician and patient with different information about risk of future disease and treatment outcomes. It is important that providers be able to recommend the appropriate test for each individual patient; this decision is based on tissue availability and prognostic information desired. Future studies will continue to emphasize the important role of genomic biomarkers in making individualized treatment decisions for prostate cancer patients.