Variation in Defining Retention After Onabotulinum Toxin A for Overactive Bladder: A Systematic Review.

IMPORTANCE: Urinary retention is a common adverse effect after intravesical injection of onabotulinum toxin A (BTX) for overactive bladder (OAB). Reported retention rates range from 1.6% to more than 40%. This variation may be due to varying definitions of retention in the literature. OBJECTIVE: We aimed to assess the variation in definitions of urinary retention across studies of BTX for the treatment of OAB. STUDY DESIGN: We performed a systematic review of studies of BTX for OAB by querying MEDLINE and EMBASE according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We included original research studies on adults with overactive bladder treated with BTX and urinary retention reported as an outcome from January 2000 to December 2020. RESULTS: From 954 results, we identified 53 articles that met inclusion criteria. There were 6 definitions for urinary retention. The majority of studies (60.4%) reported initiating clean intermittent catheterization (CIC) as the metric for retention. Five (9.5%) studies provided no definition despite reporting retention as an adverse event. Twenty studies (37.7%) specified a postvoid residual volume (PVR) threshold for initiating CIC in asymptomatic patients; 19 (35.8%) specified a PVR threshold for CIC in symptomatic patients. The PVR thresholds ranged from 100 to 400 mL. Twenty-three studies (43.4%) did not address asymptomatic elevation of PVR, and 22 (41.5%) did not address how symptomatic patients were managed. CONCLUSIONS: Urinary retention after BTX injection is inconsistently defined in the literature. Lack of standardization in reporting retention after intravesical BTX prevents accurate assessment of the risk of urinary retention and comparison of outcomes between studies.

Is size in the eye of the beholder? Visual estimation of penis size among transgender and cisgender people and implications for genital gender-affirming surgery and sexual medicine.

BACKGROUND: Transgender men (TM) seeking gender-affirming phalloplasty and transgender women (TW) seeking vaginoplasty and desiring insertive intercourse must consider penis size. Evidence has shown that, at least among cisgender men (CM), penile dimensions tend to be poorly estimated. In transgender patients desiring gender-affirming surgery, inaccuracy in estimation of penis dimensions may lead to unnecessary morbidity: for TW, trauma to the neovagina; for TM with excess girth, an inability to insert. Studies on the accuracy with which transgender and cisgender patients estimate penis size are limited. AIM: To assess the degree of accuracy with which CM and CW, as well as TM and TW, visually estimate the size of the human penis, including length, width, and girth. METHODS: There were 142 participants included (25 TM, 47 TW, 30 CM, and 40 CW; net mean ± SD age, 36.6 ± 11.2 years). Participants were shown these models and asked to estimate length, width, and midshaft girth by visual inspection of 6 realistic models of a penis and scrotum of varying lengths and widths. We evaluated the accuracy of the visual measurements by comparing mean perceived dimensions with the actual dimensions of each model. OUTCOMES: We used a multivariate model of all 3 bias dimensions to test for differences in average bias among gender groups (CM, CW, TM, and TW). RESULTS: TM significantly overestimated length across the longest models. TW significantly overestimated length in the longer 3 models. All groups except for TM significantly underestimated girth in at least 1 model. No groups significantly underestimated width. CM, CW, and TM significantly overestimated width in all 6 models. CLINICAL IMPLICATIONS: When transgender patients use numbers to express penis size (either in neophallus or vaginal depth based on perceived partner size), the result is likely to be larger than expected. Use of realistic penis models as a decision-making tool may help manage patient expectations and surgery decision making preoperatively and improve postoperative patient satisfaction and safety. STRENGTHS AND LIMITATIONS: To our knowledge, this is the first study to assess visual estimation in penis size in TM and CM, as well as TW and CW. The penile models in our study were shown side by side and in the flaccid state despite having dimensions more consistent with an erect penis, which may have influenced estimations across all dimensions. CONCLUSION: Men and women (cisgender and transgender) tend to significantly overestimate penis length and width.

The value of residency program characteristics changes throughout urology training.

INTRODUCTION: The purpose of this study was to determine which characteristics of urology residency programs are most highly valued by medical students and residents, and how these change during training. MATERIALS AND METHODS: We distributed a survey to urology residents and medical students interested in urology via program director email and social media. The survey collected demographic data, future career plans, and asked respondents to rank the relative importance of six categories of residency program characteristics and specific characteristics within each category. RESULTS: Among the six categories of residency characteristics, resident experience was ranked most important by both medical students and residents, followed by geography and clinical experience which were tied. Medical students ranked clinic experience and formal mentorship with greater importance while residents placed higher value on the active role of clinical faculty and help from advanced practice providers. Trainees planning for an academic career ranked research experiences and resident diversity as more important than those entering private practice. CONCLUSIONS: Residents and medical students mostly agreed on the relative importance of residency program characteristics. The differences observed suggest that as trainees gain experience they place greater importance on informal relationships with faculty and value characteristics that enhance surgical training such as support from advanced practice providers and less time in clinic. These findings may guide programs on what information to include on their websites and presentations.

Identifying novel biomarkers associated with bladder cancer treatment outcomes.

Bladder cancer is a complex disease with variable prognosis. Recent investigations into the molecular landscape of bladder cancer have revealed frequent genetic alterations and molecular subtypes with therapeutic implications. Consequently, a shift toward personalized treatment of bladder cancer is underway. To this end, several biomarkers have been developed and tested in their ability to predict response to treatment in patients with bladder cancer and potentially help direct therapy. We performed a search of recently published PubMed articles using terms "biomarker," "bladder cancer," and the respective treatment discussed (i.e., "neoadjuvant" or "BCG"). In this review, we summarize the latest studies on novel biomarkers in bladder cancer with a focus on those intended to improve risk stratification and treatment selection.

Residency graduates should not be expected to perform hypospadias repair without fellowship training: Results from a survey of SPU membership.

BACKGROUND: Trainee autonomy has eroded over time as surgery has become more subspecialized and as attending oversight has increased, causing many trainees to seek additional fellowship training beyond residency. Less clear is whether there are cases that attendings view as "fellowship-level" or "privileged" cases in which resident-level trainees should not have high levels of autonomy due to complexity or high-stakes outcomes. OBJECTIVE: We sought to better understand current attitudes and practices with regards to trainee autonomy in hypospadias repair as it represents a high complexity procedure within pediatric urology. STUDY DESIGN: We administered a RedCap survey to the SPU membership, asking respondents to describe the level of autonomy afforded to trainees in various types of hypospadias repair (distal, midshaft, proximal, perineal) as measured by the Zwisch scale. The Zwisch scale describes the role of the attending in the attending-trainee relationship in a low-to-high trainee autonomy fashion: show and tell; active help; passive help; supervision only. RESULTS: 177 of 761 (23%) unique recipients completed our survey and 174 of 177 (98%) of respondents felt that trainees should not perform hypospadias repair independently in practice without additional fellowship training. Among pediatric urologists who train residents, trainee autonomy as measured by the Zwisch scale decreased as the type of hypospadias repair moved from distal to proximal. DISCUSSION: There was near unanimous agreement among respondents that urology trainees should not perform hypospadias repair in practice without additional pediatric urology fellowship training, and that current practice affords little trainee autonomy in hypospadias repair at the resident level. These findings introduce a new wrinkle into the issue of trainee autonomy: cases in which trainees perhaps should not have autonomy. Concurrently, the concern with such findings is that this intentional lack of autonomy may extend to other urologic procedures that one would expect trainees to be able to perform independently. CONCLUSION: Urology trainees are not expected to be able to perform hypospadias in practice without additional training. This raises the question that there may be other such procedures in urology, and if so, should we as instructors, be forthcoming about the limitations of urology residency training to set appropriate trainee expectations?

The Utility of Radiologic and Symptomatic Surveillance After Minimally-invasive Adult Pyeloplasty.

OBJECTIVE: To evaluate different types of failure after minimally-invasive pyeloplasty (MIP) when stratified by initial radiologic study and symptoms after ureteral stent removal. METHODS: We retrospectively reviewed adults who underwent MIP (1996-2019) at a single academic center. Patients with at least 11 months of follow-up and patients who had a Mag3 scan as their initial postoperative imaging were included. Postprocedure, patients were categorized as having normal, equivocal, or obstructed imaging based on their initial radiologic test. Patients who were obstructed were excluded. Primary outcome was procedural failure, defined as the need for a procedure to treat recurrent obstruction. Secondary outcomes were radiologic failure and symptomatic failure. Groups were compared to assess for statistical significance (P <.05). RESULTS: Overall, 122 patients met inclusion criteria. On initial postoperative imaging, 108 (89%) patients had no obstruction and 14 (11%) had equivocal findings. The procedural failure rate was 6.5% in the unobstructed group and 28.6% in the equivocal group (P = .023). Seven unobstructed patients (6.5%) and 2 equivocal patients (14.3%) eventually experienced radiologic failure (P = .275). Among patients who had no obstruction on initial imaging and remained asymptomatic, only one (0.9%) required a salvage procedure. CONCLUSION: Recurrent obstruction after pyeloplasty varied based on the outcome of the initial radiologic study. These rates can be used to counsel patients and guide physicians' choice of surveillance schedules. The risk of future failure is very low in asymptomatic patients with normal initial imaging. The utility of routine radiologic surveillance in these patients may be limited.

Pathophysiology and Clinical Biomarkers in Interstitial Cystitis.

Interstitial cystitis/bladder pain syndrome is a poorly understood yet prevalent condition accounting for a significant proportion of urology office visits. Identification of reliable biomarkers for disease remains an important yet challenging area of research given the heterogeneity of disease presentation and pathophysiology. A review of the literature by the authors revealed a handful of original investigations that revealed promising biomarkers within various physiologic processes or organ systems including immunity, inflammation, neural pathways, urothelial integrity, and anesthetic bladder capacity. Although no perfect biomarker has yet been identified for IC/BPS, research in this area has greatly expanded our understanding of disease.

THE IMPACT OF VIDEO VISITS ON MEASURES OF CLINICAL EFFICIENCY AND REIMBURSEMENT.

INTRODUCTION: Telehealth is gaining more attention in multiple specialties, including urology. Video visits in particular have shown high satisfaction and cost-saving for patients. However, there has been little investigation into how video visits compare to traditional clinic visits on measures of clinical efficiency and reimbursement. METHODS: Our dataset included 250 video visits of established patients at Michigan Medicine Department of Urology and 250 in-person clinic visits with the same providers completed between July 2016 and July 2017. Information on visit completion and cancellation rates; cycle time (time from check in to check out); reimbursement; and patient out-of-pocket expenses was collected using the electronic medical record and billing data. RESULTS: Completion rates were similar between video and clinic visits (58% versus 61%, respectively; p=0.24). Average cycle time for video visits was significantly shorter compared to clinic visits (24 min vs 80 min, respectively; p<0.01). Neither average commercial payer reimbursement (p=0.21) nor average out-of-pocket expense (p=0.22) was statistically different between video and traditional visits. More video visits than clinic visits were billed as level 3 encounters (85% and 63%, respectively, p=0.002). CONCLUSIONS: Our study demonstrates that video visits have the potential to reduce the time patients spend on follow-up care without negatively impacting reimbursement rates. However, these visits could reduce average billing levels. These findings suggest that the incorporation of video visits into practice may be more efficient for patients but may also reduce billing levels.

Outcomes and safety of electronic consult use in vascular surgery.

OBJECTIVE: The objective of this study was to determine how electronic consults (eConsults) are used in vascular surgery in a veterans health care setting and whether their use is safe for patients. METHODS: A retrospective review was performed of all eConsults completed by the vascular surgery service at the Ann Arbor Veterans Affairs Healthcare System between October 10, 2012 and November 15, 2013. Patients' demographics and comorbidities were collected. eConsult recommendations and patient and provider compliance with recommendations were collected. Data on adverse outcomes up to 1 year after consultation and data on all-cause mortality at 1 year and 5 years were collected. RESULTS: Between October 10, 2012 and November 15, 2013, of 350 eConsults completed, 123 (35%) were for peripheral artery disease, 93 (27%) for carotid stenosis, and 57 (16%) for abdominal aortic aneurysm. Unique recommendations were made for 291 consults (83%). Medication recommendations were made in 140 consults (40%). The most commonly recommended medication was cilostazol. Compliance with medication recommendations ranged from 30% to 61%. Noninvasive imaging was recommended in 220 consults (60.3%). Procedures overall were recommended in only six consults (1.7%). Five-year all-cause mortality for categorized diagnoses ranged from 8.3% for nonabdominal aneurysm to 28.1% for abdominal aortic aneurysm. CONCLUSIONS: Within the Veterans Affairs vascular surgery service, eConsults provide a safe and effective means of triaging and providing recommendations for patients with vascular disease. eConsults used to augment traditional consultations may provide an important means of reducing clinic congestion for providers and reducing time and cost for patients.

Obstetric Management and Maternal Outcomes of Childbirth Among Patients With Chiari Malformation Type I.

BACKGROUND: A range of opinions exist in the literature regarding obstetric management of pregnant women with Chiari malformation type I (CM-I). OBJECTIVE: To examine obstetrical practices and outcomes with childbirth of women with CM-I. METHODS: We examined insurance claims data from a large, privately insured health care network and identified admissions for childbirth from 2004 to 2014. Women with a diagnosis of CM-I as well as normal controls were analyzed for demographic characteristics, type of obstetric management, and complications of childbirth. RESULTS: We identified 866 patients with CM-I diagnosis who had 1048 hospitalizations for delivery, including 103 deliveries to 83 patients who underwent performance of CM-I decompression (CMD) either before or after childbirth. Among 400 births that occurred after CM-I diagnosis, rates of caesarean section (C-section) were higher (42.3% vs 36.2%, OR 1.29, 95% CI 1.00-1.66, P = .05) and rates of epidural analgesia were lower (45.3% vs 55.4%, OR 0.67, 95% CI 0.52-0.85, P = .001) compared to 648 births before CM-I diagnosis. The rate of serious maternal morbidity was similar among deliveries to women with CM-I diagnosis (both before and after delivery) compared to 11 000 normal controls. CONCLUSION: A diagnosis of CM-I prior to delivery is associated with a higher rate of C-section and a lower rate of epidural analgesia. Rates of serious maternal morbidity among women with CM-I were similar to those for normal controls. The data suggest a predelivery diagnosis of CM-I may influence obstetric decisions despite no evidence of substantially increased delivery risk in this group.

Generalizability of Competency Assessment Scores Across and Within Clerkships: How Students, Assessors, and Clerkships Matter.

PURPOSE: Many factors influence the reliable assessment of medical students' competencies in the clerkships. The purpose of this study was to determine how many clerkship competency assessment scores were necessary to achieve an acceptable threshold of reliability. METHOD: Clerkship student assessment data were collected during the 2015-2016 academic year as part of the medical school assessment program at the University of Michigan Medical School. Faculty and residents assigned competency assessment scores for third-year core clerkship students. Generalizability (G) and decision (D) studies were conducted using balanced, stratified, and random samples to examine the extent to which overall assessment scores could reliably differentiate between students' competency levels both within and across clerkships. RESULTS: In the across-clerkship model, the residual error accounted for the largest proportion of variance (75%), whereas the variance attributed to the student and student-clerkship effects was much smaller (7% and 10.1%, respectively). D studies indicated that generalizability estimates for eight assessors within a clerkship varied across clerkships (G coefficients range = 0.000-0.795). Within clerkships, the number of assessors needed for optimal reliability varied from 4 to 17. CONCLUSIONS: Minimal reliability was found in competency assessment scores for half of clerkships. The variability in reliability estimates across clerkships may be attributable to differences in scoring processes and assessor training. Other medical schools face similar variation in assessments of clerkship students; therefore, the authors hope this study will serve as a model for other institutions that wish to examine the reliability of their clerkship assessment scores.