Publications by authors named "Boris Gershman"

Although clinical trials should be accessible to all patients, persistent racial and ethnic disparities in clinical trial enrollment exist. Herein, we examine racial disparities in clinical trial enrollment among prostate cancer patients from a large population-based cohort of oncology practices in the United States. Using CancerLinQ Discovery, we identified men with regional (N1+) and/or metastatic (M1) prostate cancer diagnosed from 2011 to 2023.

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Article Synopsis
  • Small cell prostate cancer (SCPC) is a rare, aggressive cancer with limited treatment guidelines, prompting this study to assess patient data and outcomes.
  • The study analyzed 74 patients treated between 2010-2023, finding that most had metastatic disease and the primary treatment was platinum chemotherapy plus etoposide, with a median overall survival of 8.3 months for those with metastatic SCPC.
  • Results showed that cisplatin plus etoposide improved survival over carboplatin plus etoposide, but there is no clear consensus on the best treatment, highlighting the need for further research in real-world clinical practices.
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Introduction: Although the Prostate Imaging-Reporting and Data System (PI RADS) categorization represents the standard method for assessing the risk of prostate cancer using prostate magnetic resonance imaging (MRI), there exists wide variation in cancer detection rates (CDRs) in real-world practice. We therefore evaluated the association of clinical and radiographic features with CDRs and developed a predictive model to improve clinical management.

Methods: We identified men aged 18-89 years with elevated prostate-specfic antigen (PSA) or on active surveillance for prostate cancer who underwent MRI-ultrasound (US) fusion biopsy or in-bore MRI-targeted biopsy.

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Background: Inflammation has been linked to the development of benign prostatic hyperplasia (BPH). SRD5A2 is a pivotal enzyme in the development and growth of the prostate gland and a critical target for BPH therapy. TNF-α regulates epigenetic changes in SRD5A2, leading to suppression of SRD5A2 gene and protein expression.

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  • This study aimed to enhance understanding of upper tract imaging in patients assessed for hematuria, evaluating imaging rates and effectiveness using a national cohort of insured individuals.
  • A total of 466,710 patients were analyzed between 2010 and 2015, with various imaging modalities revealing low detection rates: ultrasound (1%), CT (1.7%), and other methods (2.7%).
  • The results suggest that while the diagnostic yield of imaging is higher than expected, overall detection remains low, indicating a potential preference for using ultrasound in initial evaluations based on updated guidelines.
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Background: In metastatic hormone-sensitive prostate cancer (mHSPC), androgen deprivation therapy and standard of care treatment intensification with docetaxel and/or an androgen receptor signaling inhibitor (ARSI) are associated with improved survival outcomes for appropriate patients.

Methods: This retrospective study selected patients with de novo mHSPC diagnosed between 2014 and 2023 from CancerLinQ Discovery®, a United States (US)-based, de-identified clinical database. Patient-level data, including clinical characteristics, treatments, and demographics, were collected from CancerLinQ.

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Background: Contemporary prostate cancer (PCa) screening uses first-line prostate-specific antigen (PSA) testing, possibly followed by multiparametric magnetic resonance imaging (mpMRI) for men with elevated PSA levels. First-line biparametric MRI (bpMRI) screening has been proposed as an alternative.

Objective: To evaluate the comparative effectiveness and cost-effectiveness of first-line bpMRI versus PSA-based screening.

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Holmium laser enucleation of the prostate (HoLEP) is considered a size-independent technique to treat benign prostatic hyperplasia. This safe and effective procedure is increasingly being adopted in urology training programs worldwide, yet limited teaching strategies have been described. Endoscopic handling during HoLEP allows for a simultaneous interaction between the surgeon and trainee, facilitating a guided teaching strategy with increasing difficulty as experience grows.

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Background: Although active surveillance is the preferred management for low-risk prostate cancer (PCa), some men remain at risk of overtreatment with definitive local therapy. We hypothesized that baseline characteristics may be associated with overtreatment and represent a potential source of health disparities. We therefore examined the associations of patient and disease characteristics with the surgical overtreatment of low-risk PCa.

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Objective: To conduct a systematic review and meta-analysis to evaluate the association of a peritoneal interposition flap (PIF) with lymphocele formation following robotic-assisted laparoscopic radical prostatectomy (RALP) with pelvic lymph node dissection.

Methods: We conducted a systematic search of MEDLINE, Embase, Web of Science, and the Cochrane Central Register of Controlled Trials through August 30, 2023, to identify randomized and nonrandomized studies comparing RALP with pelvic lymph node dissection with and without PIF. A random effects meta-analysis was then performed to evaluate the associations of PIF with 90-day postoperative outcomes.

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Distinguishing between organ-confined disease and extraprostatic extension (EPE) is crucial for the treatment of patients with prostate cancer. EPE is associated with an increased risk of biochemical recurrence, positive surgical margins, and metastatic disease. An MRI-based EPE scoring system was developed by Mehralivand in 2019; however, it has not been adopted in the Urology community.

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  • The study investigates the use of low-dose, patient-adjusted nitrous oxide to enhance patient comfort during transrectal prostate biopsies, a procedure that can cause pain and anxiety.
  • It involved 133 patients, comparing the effects of nitrous oxide versus oxygen in addition to standard pain relief, measuring anxiety and pain levels before and after the procedure.
  • Results showed that while nitrous oxide did not significantly reduce anxiety, it resulted in lower pain scores and better tolerance ratings from urologists, suggesting it is a safe option for improving patient experience.
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Introduction: Prostate needle biopsy (PNBx) is essential for prostate cancer diagnosis, yet it is not without risks. We sought to assess patients who underwent PNBx using a claims-based frailty index to study the association between frailty and postbiopsy complications from a large population-based cohort. We hypothesized that increased frailty would be associated with adverse outcomes.

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Introduction: Traditional surveillance protocols do not adequately account for the decreasing risk of mortality over time in aggressive malignancies, such as bladder cancer. Rather, the risk of death depends on both the baseline risk of mortality and the time survived since treatment. We therefore evaluated the conditional survival of patients diagnosed with urothelial carcinoma of the bladder (UCB) following radical cystectomy (RC).

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Introduction: We sought to assess the comparative hospital outcomes and costs among a population-based cohort of bladder cancer patients by surgical approach and diversion.

Methods: From a privately insured national database, we identified all bladder cancer patients who underwent open or robotic radical cystectomy and ileal conduit or neobladder from 2010 to 2015. The primary outcomes were length of stay, readmissions, and total health care costs at 90 days from surgery.

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Article Synopsis
  • Smoking is the leading preventable cause of bladder cancer (BC), significantly increasing the risk for both current and former smokers compared to never-smokers.
  • Research estimated that around 40% of bladder cancer cases in the U.S. could be prevented if smoking were eliminated, with smoking rates linked to higher BC cases in American Indian/Alaska Native and Black populations.
  • The study highlights that addressing smoking cessation, particularly in racial and ethnic minority groups, could help reduce the disparities in BC incidence across different demographics.
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Background: Survival with locally advanced bladder cancer (LABC) following radical cystectomy (RC) remains poor. Although adjuvant chemotherapy (AC) is standard of care, one small, randomized trial has suggested a potential survival benefit when combined with post-operative radiotherapy (PORT).

Objective: We examined the association of AC + PORT with overall survival (OS) in patients with LABC after RC.

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Introduction: Although pathologic lymph node involvement carries a poor prognosis in patients with urothelial carcinoma of the bladder (UCB), a subset of patients may demonstrate durable survival following surgical resection. To this end, there are limited contemporary data describing the natural history of UCB in patients with isolated lymph node involvement (cN0pN+) following radical cystectomy (RC) with pelvic lymph node dissection (PLND). We therefore utilized a large, nationwide oncology dataset to examine the natural history and outcomes of cN0 pN+ UCB after surgical resection.

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Objective: To evaluate the associations of socioeconomic characteristics with the management of non-muscle invasive bladder cancer (NMIBC).

Methods: We identified adult patients aged 18 to 89 years with Ta, T1, or Tis NMIBC in the NCDB. We then examined the associations of patient and socioeconomic characteristics with the guidelines-based management of high-risk NMIBC using multivariable logistic regression.

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Acidity is a useful biomarker for the targeting of metabolically active-cells in tumors. pH Low Insertion Peptides (pHLIPs) sense the pH at the surfaces of tumor cells and can facilitate intracellular delivery of cell-permeable and cell-impermeable cargo molecules. In this study we have shown the targeting of malignant lesions in human bladders by fluorescent pHLIP agents, intracellular delivery of amanitin toxin by pHLIP for the inhibition of urothelial cancer cell proliferation, and enhanced potency of pHLIP-amanitin for cancer cells with 17p loss, a mutation frequently present in urothelial cancers.

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Background: The optimal management of node-positive (pN1) prostate cancer following radical prostatectomy (RP) remains uncertain. Despite randomized evidence, utilization of immediate, life-long androgen deprivation therapy (ADT) remains poor, and recent trials of early salvage radiotherapy included only a minority of pN1 patients. We therefore emulated a hypothetical pragmatic trial of adjuvant radiotherapy versus observation in men with pN1 prostate cancer.

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This paper presents a new global dataset on contemporary witchcraft beliefs and investigates their correlates. Witchcraft beliefs cut across socio-demographic groups but are less widespread among the more educated and economically secure. Country-level variation in the prevalence of witchcraft beliefs is systematically linked to a number of cultural, institutional, psychological, and socioeconomic characteristics.

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Article Synopsis
  • The study aimed to compare the effectiveness of two biopsy techniques: MRI-ultrasound (MRI-U/S) fusion biopsy and in-bore MRI-targeted biopsy (MRI-IB) for prostate cancer detection.
  • A total of 280 patients were analyzed, with no significant differences in overall cancer detection rates between the two methods, though MRI-IB showed a higher rate of clinically significant cancers.
  • The researchers concluded that while both techniques are similar in general effectiveness, MRI-IB may be better for identifying more aggressive cancers, suggesting the need for systematic biopsy cores in MRI-U/S procedures.
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Objective: To elucidate regional trends of infectious complications following transrectal ultrasound prostate biopsy (TRUS-PB) from a national, privately-insured database.

Matereial And Methods: Using Market Scan, we identified all men who underwent TRUS-PB from 2010 to 2015. Infectious complications (UTI, prostatitis, sepsis) occurring 30 days after the prostate biopsy from emergency room (ER) visits or hospital admissions constituted the primary outcomes.

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