Faculty Bibliography

INTRODUCTION/BACKGROUND:It is known the prevalence of varicoceles in adolescent men is 14-29% but there is debate surrounding implications on fertility. As obtaining a semen analysis (SA) may be challenging, there is need for objective tests as measures of fecundity. Our aim was to investigate the relationship between testicular volume differential (TVD), varicocele grade, and total testicular volume (TTV) on seminal parameters including total motile sperm count (TMSC). MATERIALS AND METHODS/METHODS:We conducted a retrospective single-center chart review over 14 years of 486 Tanner V adolescent males. Three hundred and four met inclusion of palpable, non-operated left-sided varicocele who underwent at least one SA and ultrasound. Abnormal TMSC was defined by World Health Organization 2010 criteria for minimal reference ranges. Multivariate logistic regression, receiver operating characteristic analysis with Youden J-statistic and descriptive statistics were performed. RESULTS:Three hundred and four Tanner V adolescents with median age of 18.0 years (18.0-19.0), median TTV of 34.5 cc (28.9, 40.2) and median TMSC of 62.5 million/ejaculate (25.4, 123.4) were evaluated. TTV cutoff of 29.5 cc was found to predict TMSC of <9 million/ejaculate with negative predictive value of 96.2% and odds ratio of 6.08 ([2.13-17.42], p < 0.001). TVD greater than 20% did not reach statistical significance with an odds ratio of 1.66 ([0.41-6.62], p = 0.50). DISCUSSION/CONCLUSIONS:In clinical practice, each patient will need to have an individualized plan. Based on our data, for older adolescents (17 or 18 years) with varicocele and an abnormal TTV, clinicians may have a lower threshold for advising SA, and if unable to obtain, surgical intervention and/or closer surveillance should be stressed. Patients should be informed of their six-fold increase in abnormal SA. Patients with normal TTV should be advised they are at lower risk of having abnormal SA. Younger patients with varicocele and an initial TVD>20%, should be followed closely but intervention delayed until 17 or 18 to better assess TTV. The importance of trending patient data should be emphasized as a single measurement has low predictive value for developing adolescents. Limitations of our study include a retrospective design and the lack of uniform correlation between adolescent SA and paternity. CONCLUSIONS:Total testicular volume less than 29.5 cc increased odds of abnormal semen analysis by over six times and had a negative predictive value of 96.2%. Ultrasound results may be useful for risk stratification and counselling on appropriateness of surgical intervention.

Treatment of anastomotic ulcers, also known as marginal ulcers, is challenging, especially when established techniques have failed. PuraStat is a biocompatible synthetic peptide gel that is indicated for hemostasis of bleeding in the gastrointestinal tract and vascular anastomoses. We aim to evaluate the feasibility of PuraStat in the setting of nonhealing anastomotic ulcers when used alongside standard therapies. This is a multicenter case series of adult patients who had PuraStat applied with a follow-up repeat endoscopy. Nine out of 10 patients showed clinical improvement. We concluded that PuraStat is an effective agent to aid in healing of anastomotic ulcer.

BACKGROUND/UNASSIGNED:Number of organ transplant recipients continues to rise worldwide with increasing accessibility and growing advancements in transplant medicine. Transplant patients have at least a two-to-four fold higher risk of developing cancer compared to the general population. As the prevalence of transplant patients increases, a growing number of these patients are expected to present with concurrent conditions such as cancer, requiring more complex and interdisciplinary care. CASE/UNASSIGNED:A 44-year-old patient with an intraperitoneal pelvic renal transplant, found to have high-grade ovarian adenocarcinoma most likely arising from endometriosis, successfully underwent surgical staging, adjuvant chemotherapy, and subsequent pelvic radiation for recurrence. Her kidney function and graft viability were preserved throughout her treatment with careful monitoring. CONCLUSION/UNASSIGNED:Management of reproductive tract cancers in kidney transplant recipients is complex. Current practices largely rely on evidence from observational studies and case reports for these cancers and more research is needed in this area.

Gastrointestinal bleeding is classified as obscure in 5% of patients who remain symptomatic after undergoing upper endoscopy, colonoscopy, and small bowel capsule endoscopy. We present a case of a 45-year-old male who had obscure bleeding for eight years and presented with hemorrhagic shock. He was found to have an ulcerated intra-luminal jejunal lesion on enteroscopy, then had surgical resection that revealed a low-risk gastrointestinal stromal tumor (GIST). If GISTs are bleeding, hemostasis should first be achieved with medical, endoscopic, or radiologic interventions, and then resected because they can have malignancy potential. Furthermore, they should be risk-stratified and either surveilled to monitor for recurrence if low risk or need adjuvant imatinib if high risk. There are currently no screening guidelines for GISTs despite their increasing incidences.

BACKGROUND:Coronary microvascular dysfunction (CMD) is an etiology for angina with non-obstructive coronary disease. However, the initial adoption of CMD assessment, whether planned or conducted ad hoc, is limited. We characterize planned and ad hoc CMD assessments and highlight evolving trends of a CMD referral center. METHODS:We analyzed outpatient data from the Coronary Microvascular Disease Registry from 2021 to 2023. Patients were categorized into planned or ad hoc CMD assessment groups, and baseline characteristics, hospital stay, medications, and physiological measurements were compared. Secondary analysis evaluated a CMD referral center's evolution. RESULTS:Of 101 included outpatients, 67.3 % underwent ad hoc procedures and 32.7 % planned procedures. Average age was 63.1 ± 10.1 years. The planned procedure group was 87.9 % female, and the ad hoc procedure group was 51.5 % female. There were no significant differences in index of microvascular resistance or coronary flow reserve between groups. Hospital stay duration was <1 day for both groups, and neither reported complications. Ad hoc patients were more frequently prescribed aspirin before (64.7 % vs. 36.4 %, p = 0.007) and after the procedure (66.2 % vs. 39.4 %, p = 0.01). CMD rates were higher for planned procedures (30.3 % vs. 10.3 %, p = 0.01). We observed that CMD referral centers have more planned procedures and a higher rate of positive results over time. CONCLUSION/CONCLUSIONS:CMD referral centers' planned procedures, and subsequent positive cases, increased over time. This emphasizes the importance of planned procedures, appropriate patient selection, and increased awareness of CMD among healthcare providers. CLINICAL TRIAL REGISTRATION/BACKGROUND:Coronary Microvascular Disease (CMD) Registry, NCT05960474, https://clinicaltrials.gov/study/NCT05960474.

Pretibial traumatic hematomas, a subtype of subcutaneous tension hematomas, are a frequent but understudied injury seen predominantly among the elderly. This patient cohort has a high incidence of comorbidities and frailty. They are frequently taking antiplatelet medications and systemic anticoagulants. The treatment of these injuries can be costly and associated with significant morbidity and even mortality. Early detection and treatment are important when managing pretibial hematomas with the potential for skin necrosis. We report on a case where we performed how early operative debridement, negative pressure wound therapy, and subsequent split-thickness tissue grafting may be an effective management strategy for pretibial hematomas and suggest the importance of establishing standardized institutional approaches for their management.