Linder, Brian J

ABSTRACT Objective To evaluate long‐term failure rates and complications after retropubic and transobturator midurethral sling procedures for primary stress urinary incontinence (SUI). Design Retrospective cohort study. Setting Academic medical centre. Population A previously described cohort of patients ( n = 1881) who underwent midurethral sling procedures (2002–2012) and a covariate‐matched cohort of patients with retropubic ( n = 570) or transobturator ( n = 317) slings. Methods Health record review with follow‐up extended by 9 years (through December 31, 2022). Main Outcome Measures Treatment failure (reoperation for recurrent SUI) and procedure‐associated complications. Results The duration of assessment was extended by 6.9 years for the retropubic group and by 6.4 years for the transobturator group. The median (IQR) follow‐up was 11.1 (5.1–14.5) years (retropubic, 11.4 [5.9–14.6]; transobturator, 9.6 [2.6–13.7]). Higher risk of reoperation was observed with transobturator (8.8%) than retropubic (4.4%) slings (unadjusted hazard ratio [HR], 2.29 [95% CI, 1.49–3.54]; p < 0.001; covariate‐matched analysis HR, 1.91 [95% CI, 1.15–3.17]; p = 0.01). The increased risk of reoperation with a transobturator sling was higher when the procedure was combined with prolapse repair (unadjusted HR, 6.34 [95% CI, 3.09–13.02]; p < 0.001; covariate‐matched analysis HR, 3.96 [95% CI, 1.35–11.58]; p = 0.01). Higher rates of reoperation for urinary retention were observed for the retropubic group than for the transobturator group (covariate‐matched analysis HR, 8.39 [95% CI, 1.11–63.22]; p = 0.04). Conclusion In this long‐term follow‐up study, midurethral slings had a low failure rate. Women with SUI undergoing transobturator sling placement plus prolapse repair had a greater risk of reoperation. However, women with retropubic slings had a greater risk of urinary retention requiring intervention.

ABSTRACT Background Interpretation of urodynamic studies (UDS) is central to diagnosing lower urinary tract dysfunction, but it is often complex, time‐consuming, and subject to interobserver variability. Recent advances in artificial intelligence (AI), particularly machine learning (ML) and deep learning (DL), have enabled automated analysis of multichannel pressure–flow data and may improve objectivity and efficiency in UDS interpretation. Objective To critically review current applications of ML and DL for interpretation of multichannel UDS data and to evaluate their performance, clinical targets, and limitations. Methods A literature search of PubMed, Scopus, and Web of Science was performed through September 2, 2025, without language or date restrictions. A narrative review was conducted of peer‐reviewed studies applying ML or DL techniques to invasive UDS signals, including vesical, abdominal, and detrusor pressures as well as urinary flow. Studies limited to uroflowmetry or non‐UDS inputs were excluded. Model design, input features, validation strategies, and clinical outcomes were systematically assessed. Results A total of 12 studies met inclusion criteria. AI models were applied to a range of UDS tasks, including detection of detrusor overactivity, classification of bladder outlet obstruction and detrusor underactivity, multi‐feature UDS pattern recognition, severity grading, and real‐time event detection. Reported diagnostic performance was generally high, with many models achieving accuracies or AUCs between 80% and 95% for primary outcomes. However, study designs were heterogeneous, most datasets were retrospective and single‐center, and external validation was limited. Conclusions ML and DL approaches can extract clinically meaningful information from multichannel UDS recordings and demonstrate strong technical performance across several diagnostic tasks. However, variability in methodology, limited generalizability, and lack of prospective validation currently limit clinical adoption. AI‐based UDS interpretation remains an emerging research area requiring standardized data, robust validation, and integration with clinical workflows.

ABSTRACT Objective Falls are a leading cause of morbidity and loss of independence in adults. The association between overactive bladder (OAB) and fall risk has not been thoroughly investigated. This study evaluated the association between OAB and fall history in a nationally representative sample of US adults aged 20−69 years. Methods We performed a cross‐sectional analysis of adults aged 20−69 years from the 2021−2023 National Health and Nutrition Examination Survey (NHANES). OAB was classified using a composite symptom severity score that assessed urge urinary incontinence and nocturia. Fall history was assessed by self‐reporting (only in participants aged 20−69 years), where a recent fall was defined as experiencing at least one fall within the past year. Survey multivariable logistic regression was used to estimate adjusted odds ratios (aOR) for the association between fall history and OAB after controlling for sociodemographic and clinical covariates. Results Among 4118 participants, the population‐weighted prevalence of OAB was 19.6% (standard error [SE]: 1.1%), and the prevalence of a recent fall was 28.3% (SE: 1.3%). The prevalence of a recent fall was higher among those with OAB (39.7% [SE: 1.6%] vs. 25.7% [SE: 1.5%]). The prevalence of a recent fall increased progressively with OAB symptom severity (24.3% in those with no symptoms vs. 52.4% in those with severe symptoms). In the fully adjusted model controlling for sociodemographic and clinical covariates, OAB was independently associated with a 42% higher odds of experiencing a recent fall (aOR, 1.42; 95% CI, 1.10 to 1.83; p = 0.01). Conclusion OAB is independently associated with an increased risk of a recent fall in US adults aged 20‐69 years, with a strong positive relationship between OAB severity and fall risk. These findings suggest that screening for OAB may be a useful adjunct to fall risk assessment. Future studies are needed to determine whether OAB management reduces the risk of falls.

ABSTRACT Introduction Non‐muscle invasive bladder cancer (NMIBC) is a chronic disease with a lifelong treatment burden that may cause substantial urinary morbidity. Such quality‐of‐life changes remain understudied. We therefore evaluated the incidence and predictors of treatment for overactive bladder (OAB) among older adults following diagnosis of NMIBC. Materials and Methods We identified adults aged 66–89 years with newly diagnosed NMIBC from 2007 to 2017 in the linked SEER‐Medicare database. We examined the incidence of treatment initiation for OAB following initial transurethral resection of bladder tumor (TURBT) and evaluated associations with baseline characteristics using Cox regression. Results We identified 9,819 patients, of whom 68% had Ta disease, 29% had T1 disease, and 4% had CIS. Within the first 12 months of TURBT, 7% of patients received treatment for OAB, and this increased to 15% of patients at 5 years. In the first year, the most utilized therapies were anticholinergic medications (early 3.72%, late 2.74%) and beta‐3 agonists (early 0.11%, late 0.32%), while procedural OAB therapy utilization was rare (0.2%). On multivariable analysis, female gender (HR 1.26, 95% CI 1.11–1.42), congestive heart failure (HR 1.21, 95% CI 1.03–1.43), and T1 tumor stage (HR 1.27, 95% CI 1.12–1.44 vs. Ta) were independently associated with an increased risk of OAB treatment. Conclusions The incidence of OAB requiring treatment among patients with NMIBC is substantial, with approximately one in six patients receiving treatment by 5 years after diagnosis. Predictive clinicopathologic features for OAB treatment—including, sex, high‐risk tumor features, and repeat TURBT—may be useful for clinical counseling.

ABSTRACT Introduction and Objectives Female urethral strictures remain a challenging clinical entity with limited data on optimal reconstructive techniques. This study presents 12‐month clinical and patient‐reported outcomes following a novel transurethral approach to dorsal inlay buccal graft urethroplasty. Methods We evaluate the outcomes of consecutive female patients with urethral strictures treated via dorsal inlay buccal graft urethroplasty from October 2021 to November 2024. Preoperative evaluation included cystoscopy, uroflowmetry, and/or voiding cystourethrogram. Follow‐up at 4 and 12 months included cystoscopy, uroflowmetry, and patient‐reported outcomes measured via the Global Response Assessment. Success was defined as absence of recurrence on cystourethroscopy. Results Twenty‐one patients were included in the study, with 95% having undergone prior treatments (90% dilation/DVIU and 9% urethroplasty). Stricture locations varied across the distal (33%), mid (19%), proximal (19%), and multifocal/pan urethral (19%). The median operative duration was 60 min (IQR: 56–86) and all were discharged on the day of surgery. Nineteen patients (90%) underwent a dorsal inlay procedure, while two (10%) required combined dorsal and ventral inlay due to obliterative stricture. No complications were observed. The median follow‐up was 13.2 (IQR: 5.1–23.5) months, during which time 1 patient underwent retreatment for recurrent stricture. Clinical success was 95% at 4 months and 92% at 12 months. Median peak urinary flow rate preoperatively versus 4‐month postoperatively was 7.0 cc/s versus 13.0 cc/s ( p = 0.20) and at 12‐month postoperatively was 13.3 cc/s ( p = 0.50). 90% of patients reported improvement on the Global Response Assessment. There were no cases of de novo stress urinary incontinence. Conclusions This novel transurethral dorsal inlay buccal graft urethroplasty offers a safe and efficient treatment for female urethral strictures with durable clinical and patient‐reported outcomes at 12 months. The technique's minimal urethral mobilization translates into shorter operative times and a low risk of stress incontinence, making it a promising alternative to traditional approaches.

Purpose: Surgical video review can be used in urologic training, yet significant barriers to the implementation of video review programs exist, and formal assessment of usage and utility for trainees is limited. Here, we evaluate a novel video review platform to describe patterns of use and determine perceived utility. Materials and Methods: We analyzed learning points entered by trainees during video review of radical prostatectomy cases using our surgical intelligence–enabled Film Room platform between September 2023 and July 2024. Learning point content was categorized according to surgical coaching domains as technical, cognitive, nontechnical, or descriptive. Entries were compared by surgical step and level of training. Anonymous surveys were distributed to trainees to determine perceived utility and reveal patterns of video review. Results: Thirteen trainees entered 480 unique learning points across all radical prostatectomy steps and spanning surgical coaching domains during the study period. Learning points varied by training level, with junior trainees entering points more often than senior trainees for Retzius-space dissection ( N = 73 vs 17, p < 0.01) and seminal vesicle and posterior dissection ( N = 58 vs 27, p < 0.01). Trainees used video review in preparation for both upcoming cases and performance analysis. Ninety-four percent of survey respondents reported they either agreed or strongly agreed that video review helped them develop surgical skills. Conclusions: We found usage across training levels and high perceived utility of our Film Room platform for video review of robotic prostatectomy. Implementation of video review platforms holds promise to augment existing urologic training and should be explored further.

Purpose of review To synthesize the current literature regarding the evaluation and management of genitourinary fistula in women. Recent findings Genitourinary fistula are aberrant communications between the urinary tract and genital tract that present with urinary leakage per the vagina. Initial management often involves conservative measures, such as urethral catheter or ureteral stent placement, progressing to surgical repair when needed. Key surgical principles include a tension-free, watertight closure with well-vascularized tissue including tissue interposition as appropriate, and postoperative urinary drainage. When surgical management of vesicovaginal fistula is necessary, a transvaginal repair is the most common. Other minimally invasive approaches are increasing and result in similarly high success rates with lower patient morbidity compared to open abdominal surgeries. The initial management of ureterovaginal fistula commonly includes ureteral stent placement. When not feasible or in persistent fistula, laparoscopic and robotic surgical repair with ureteral reconstruction offers high success rates with lower morbidity than an open approach. Summary Successful management of genitourinary fistula ranges from conservative urinary tract drainage to surgical interventions based on etiology, location, and complexity. Approaches to repair are shifting toward less invasive procedures. With optimal technique and surgical planning, high success rates can be achieved, particularly in primary repairs.

ABSTRACT Background Urodynamic studies (UDS) are integral to the evaluation and management of lower urinary tract dysfunction. However, artifacts are frequently encountered, affecting both clinical interpretation and research reliability. Objective This expert narrative review examines the prevalence, classification, and clinical relevance of artifacts encountered during UDS, based on findings from the existing literature. Methods A focused literature review was conducted, analyzing studies that reported data on the sources and impact of UDS artifacts, particularly from the patient perspective. Emphasis was placed on identifying both technical and patient‐related contributors to artifact generation. Results Artifacts are common in UDS despite adherence to Good Urodynamic Practices recommended by the International Continence Society. Technical artifacts may stem from equipment‐related issues such as calibration errors, catheter displacement, and device variability. Patient‐related artifacts can arise from physical movement or test‐induced detrusor overactivity. These artifacts may lead to misinterpretation, misdiagnosis, and inappropriate interventions in clinical practice. Furthermore, they may affect the validity of research findings related to diagnostic tools for lower urinary tract symptoms. Conclusion Identifying and addressing UDS artifacts during the procedure or in post‐test interpretation is critical for accurate clinical decision‐making and reliable research outcomes. Efforts to minimize artifacts should be prioritized to improve the quality and utility of UDS.