Racial disparities in prostate cancer have not been well characterized on a genomic level. Here we show the results of a multi-institutional retrospective analysis of 1,152 patients (596 African-American men (AAM) and 556 European-American men (EAM)) who underwent radical prostatectomy. Comparative analyses between the race groups were conducted at the clinical, genomic, pathway, molecular subtype, and prognostic levels. The EAM group had increased ERG (P < 0.001) and ETS (P = 0.02) expression, decreased SPINK1 expression (P < 0.001), and basal-like (P < 0.001) molecular subtypes. After adjusting for confounders, the AAM group was associated with higher expression of CRYBB2, GSTM3, and inflammation genes (IL33, IFNG, CCL4, CD3, ICOSLG), and lower expression of mismatch repair genes (MSH2, MSH6) (p < 0.001 for all). At the pathway level, the AAM group had higher expression of genes sets related to the immune response, apoptosis, hypoxia, and reactive oxygen species. EAM group was associated with higher levels of fatty acid metabolism, DNA repair, and WNT/beta-catenin signaling. Based on cell lines data, AAM were predicted to have higher potential response to DNA damage. In conclusion, biological characteristics of prostate tumor were substantially different in AAM when compared to EAM.

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Introduction:We evaluated clinical and sociodemographic factors that influence care pathways following acute urinary retention with attention to subsequent bladder outlet procedures.Methods:This was a retrospective cohort study examining patients who presented for emergent care with concomitant diagnoses of urinary retention and benign prostatic hyperplasia in New York and Florida in 2016. Using Healthcare Cost and Utilization Project data, patients were followed throughout a calendar year across subsequent encounters for recurrent urinary retention and bladder outlet procedures. Multivariable logistic and linear regression were utilized to identify factors associated with recurrent urinary retention, subsequent outlet procedures and the cost of retention-related encounters.Results:Among 30,827 patients, 12,286 (39.9%) were ≥80 years of age. Though 5,409 (17.5%) experienced multiple retention-related encounters, only 1,987 (6.4%) received a bladder outlet procedure within the calendar year. Covariates associated with repeat urinary retention included older age (OR 1.31, p <0.001), Black race (OR 1.18, p=0.001), Medicare insurance (OR 1.16, p=0.005) and lower education level (OR 1.13, p=0.03). Age ≥80 years (OR 0.53, p <0.001), Elixhauser Comorbidity Index score ≥3 (OR 0.31, p <0.001), Medicaid status (OR 0.52, p <0.001) and lower education level were associated with lower odds of receiving a bladder outlet procedure. Episode-based costs favored single retention encounters vs repeat encounters ($15,285.96 vs $28,451.21, p <0.001) and undergoing an outlet procedure vs foregoing one ($16,223.38 vs $17,690.54, p=0.002).Conclusions:Sociodemographic factors are associated with recurrent retention episodes and the decision to undergo a bladder outlet procedure following an episode of urinary retention. Despite the cost benefits associated with preventing repeated episodes of urinary retention, merely 6.4% of patients presenting with acute urinary retention underwent a bladder outlet procedure during the study period. Our findings suggest that early intervention among individuals experiencing urinary retention may confer cost and duration of care benefits.

Objective: To examine the impact of obesity on perioperative outcomes and urethral stricture recurrence after anterior urethroplasty. Material and Methods: We reviewed our prospectively maintained single-surgeon database to identify men with anterior urethral strictures who had undergone anastomotic or augmentation urethroplasty between October 2012 and March 2018. In all, 210 patients were included for primary analysis of perioperative outcomes, while 193 patients with at least 12 months follow-up were included for secondary analysis of stricture recurrence. Patients grouped by BMI were compared using univariate and multivariate analyses for perioperative outcomes and log rank testing for recurrence-free survival. Results: Overall, 41% (n=86) of patients were obese and 58.6% (n=123) had bulbar urethral strictures. Obese patients had significantly longer urethral strictures (mean=6.7cm±4.7) than nonobese patients (p <0.001). Though urethroplasty in obese patients was associated with increased estimated blood loss (EBL) relative to normal BMI patients on both univariate (p=0.003) and multivariate (p <0.001) analyses, there was no difference in operative time, length of stay, or complication rate between BMI groups. At a mean follow-up interval of 36.7 months, 15% (n=29) of patients had stricture recurrence, yet recurrence-free survival was not significantly different between groups (log rank p=0.299). Dorsal augmentation urethroplasty resulted in significantly fewer recurrences in obese patients compared to nonobese patients (p=0.036). Conclusion: Despite the association with increased urethral stricture length and EBL, obesity is not predictive of adverse perioperative outcomes or stricture recurrence. Obese patients should be offered urethral reconstruction, but patient selection and preoperative counseling remain imperative.

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