Publications by authors named "Bruce R Kava"

Purpose Of Review: This narrative review aims to outline the current available evidence, challenges, and future perspectives of Artificial Intelligence (AI) in the diagnosis and management of priapism, a condition marked by prolonged and often painful erections that presents unique diagnostic and therapeutic challenges.

Recent Findings: Recent advancements in AI offer promising solutions to face the challenges in diagnosing and treating priapism. AI models have demonstrated the potential to predict the need for surgical intervention and improve diagnostic accuracy.

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Background: Prostate artery embolization (PAE) is an emerging therapy for lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH).

Aim: This retrospective study was conducted to assess the effect of prostate artery embolization (PAE) on erectile function in a cohort of patients with LUTS attributable to BPH at 3-months after the procedure.

Methods: A retrospective review was performed on 167 patients who underwent PAE.

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Background: Submuscular reservoir placement has fulfilled a critical need for patients desiring multicomponent penile implants following pelvic surgery and radiation therapy. Passage of the reservoir through the inguinal canal into the submuscular space is often challenging and carries the risk of the reservoir being placed unknowingly outside of the targeted space.

Aim: To evaluate the safety and accuracy of a direct vision, transfascial (DVT) approach to submuscular reservoir placement.

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Purpose: Ischemic priapism is a urological emergency that requires prompt intervention to preserve erectile function. Characteristics that influence escalation to surgical intervention remain unclear. We identified factors and developed machine learning models to predict which men presenting with ischemic priapism will require shunting.

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Purpose: We applied nonmuscle invasive bladder cancer AUA (American Urological Association)/SUO (Society of Urologic Oncology) guidelines for risk stratification and analyzed predictors of recurrence and progression.

Materials And Methods: We retrospectively reviewed the records of 398 patients with nonmuscle invasive bladder cancer treated between 2001 and 2017. Descriptive statistics were used to compare AUA/SUO risk groups.

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Background: Tamsulosin remains the single most popular uroselective alpha adrenoceptor antagonist approved for the treatment of lower urinary tract symptoms (LUTS) attributable to benign prostatic hyperplasia (BPH). Over the last 3 decades, the utilization of tamsulosin has extended to conditions beyond its original indication. To identify potential changes to prescribing patterns and the extent of tamsulosin use for conditions beyond its original indication, we evaluated tamsulosin dispensing patterns in the United States using a large, multi-payer claims database.

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Background: Fungal infections of inflatable penile prostheses (IPPs) are inadequately understood in the literature.

Aim: To review a multi-institution database of IPP infections to examine for common patient and surgical factors related to IPP fungal infections.

Methods: This is a retrospective Institutional Review Board-approved analysis of 217 patients at 26 institutions who underwent salvage or device explant between 2001 and 2018.

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Introduction: With the increasing utilization of ectopic reservoir placement during multicomponent penile implant surgery, safety concerns have been raised about whether passing the reservoir through the floor of the inguinal canal consistently results in placement of the reservoir within the correct location.

Aim: To evaluate the safety, efficacy, and patient satisfaction associated with direct-vision, trans-fascial sub muscular reservoir placement in consecutive patients who had previously undergone radical cystectomy.

Methods: Perioperative data, complications, and follow up for the 12 cystectomy patients were evaluated using a comprehensive database of consecutive patients undergoing penile prosthesis placement at our center.

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Purpose: To evaluate the safety and efficacy of prostate artery embolization (PAE) for the treatment of benign prostatic hyperplasia for prostates ≥ 80 mL.

Patients And Methods: A retrospective review was conducted of 93 patients with prostate volumes (PVs) ≥ 80 mL treated with PAE from April 2014 through October 2017. Mean patient age was 68.

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Aberrantly expressed miRNAs promote renal cell carcinoma (RCC) growth and metastasis and are potentially useful biomarkers for metastatic disease. However, a consensus clinically significant miRNA signature has not been identified. To identify an miRNA signature for predicting clinical outcome in RCC patients, we used a four-pronged interconnected approach.

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Purpose: Removal of an infected penile implant often results in corporeal fibrosis, irreversible penile shortening and dissatisfaction with future implant surgery. Salvage surgery may avoid these problems but to our knowledge no study to date has evaluated these specific end points. We evaluated patients who presented to our center with an infected implant to determine the impact of salvage surgery on penile length.

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Purpose: To evaluate efficacy and safety of prostate artery embolization (PAE) in urinary catheter-dependent patients with large prostate volumes and high comorbidity scores.

Materials And Methods: A retrospective single-center review was conducted of 30 patients with urinary retention at time of PAE from November 2014 through February 2017. Mean (range) age was 73.

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Introduction: Sarcoidosis is a multisystem disease that commonly involves the lungs, but may also present with extrapulmonary manifestations. Genitourinary (GU) tract involvement has been traditionally thought to be rare, but that view may underestimate the true prevalence of the disease due to the often, silent presentation thereof.

Methods: The literature pertaining to sarcoidosis from the general systemic point of view, etiology and therapy and with regard to specific organs was reviewed by identifying key words in a PubMed search.

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Introduction: Proficiency in communication skills is a core competency of residency training. We evaluated the feasibility, acceptability and applicability of a virtual world objective structured clinical examination that enables practice based learning and assessment of resident communication skills.

Methods: A virtual clinical encounter situated in 2 practice settings was developed that uses a human avatar physician and a standardized patient.

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Objective: To analyze the performance of different radical prostatectomy-based prognostic tools in predicting the biopsy progression in our active surveillance cohort.

Materials And Methods: We analyzed 326 patients with biopsy Gleason grade≤6,≤2 positive biopsy cores,≤20% tumor present in any core, prostate-specific antigen<15ng/dl, and clinical stages T1-T2a all of whom had at least single surveillance biopsy. Probabilities of pathologically relatively aggressive disease were estimated using Partin and Dinh risk tables and Kattan, Truong, and Kulkarni nomograms for each individual patient.

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Objective: To identify factors that are not available at the time of prostate cancer diagnosis and are associated with the risk of biopsy progression in active surveillance (AS) patients.

Materials And Methods: The study included 314 AS patients who had at least 1 repeat biopsy. We used logistic regression to analyze the association between prostate-specific antigen (PSA) and its derivatives, including PSA density, PSA velocity (PSAV) and doubling time (PSADT); presence of bilateral disease and number of previous successive negative surveillance biopsies; and the risk of progression on the surveillance biopsies first through fourth.

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Purpose: Previous studies have demonstrated significant variation in recurrence rates after transurethral resection of bladder tumor, likely due to differences in surgical quality. We sought to create a framework to define, measure and improve the quality of transurethral resection of bladder tumor using a surgical checklist.

Materials And Methods: We formed a multi-institutional group of urologists with expertise with bladder cancer and identified 10 critical items that should be performed during every high quality transurethral bladder tumor resection.

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Objective: To analyze the association between prediagnostic prostate-specific antigen kinetics and the risk of biopsy progression in prostate cancer patients on active surveillance, and to study the effect of prediagnostic prostate-specific antigen values on the predictive performance of prostate-specific antigen velocity and prostate-specific antigen doubling time.

Methods: The study included 137 active surveillance patients with two or more prediagnostic prostate-specific antigen levels measured over a period of at least 3 months. Two sets of analyses were carried out.

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Objective: Few studies have examined the impact of cultural processes prevalent in minority ethnic groups such as cancer fatalism and medical mistrust on health-related quality of life (HRQoL) following a cancer diagnosis. The present study examined relationships among ethnicity, HRQoL, and two possible cultural vulnerability factors-fatalistic attitudes and medical mistrust-among an ethnically diverse sample of men with prostate cancer (PC) prior to undergoing active treatment.

Methods: A total of 268 men with localized PC (30% African American, 29% Hispanic, and 41% non-Hispanic White) were assessed cross-sectionally prior to active treatment.

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