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2.
Cancers (Basel) ; 14(12)2022 Jun 17.
Article in English | MEDLINE | ID: mdl-35740653

ABSTRACT

Targeted therapy (TT) for prostate cancer (PCa) aims to ablate the malignant lesion with an adequate margin of safety in order to obtain similar oncological outcomes, but with less toxicity than radical treatments. The main aim of this study was to evaluate the recurrence rate (RR) in patients with primary localized PCa undergoing mpMRI/US fusion targeted cryotherapy (FTC). A secondary objective was to evaluate prostate-specific antigen (PSA) as a predictor of recurrences. We designed a prospective single-center single-cohort study. Patients with primary localized PCa, mono or multifocal lesions, PSA ≤ 15 ng/mL, and a Gleason score (GS) ≤ 4 + 3 undergoing FTC were enrolled. RR was chosen as the primary outcome. Recurrence was defined as the presence of clinically significant prostate cancer in the treated areas. PSA values measured at different times were tested as predictors of recurrence. Continuous variables were assessed with the Bayesian t-test and categorical assessments with the chix-squared test. Univariate and logistic regression assessment were used for predictions. A total of 75 cases were included in the study. Ten subjects developed a recurrence (RR: 15.2%), while fifty-six (84.8%) patients showed a recurrence-free status. A %PSA drop of 31.5% during the first 12 months after treatment predicted a recurrence with a sensitivity of 53.8% and a specificity of 79.2%. A PSA drop of 55.3% 12 months after treatment predicted a recurrence with a sensitivity of 91.7% and a specificity of 51.9%. FTC for primary localized PCa seems to be associated with a low but not negligible percentage of recurrences. Serum PSA levels may have a role indicating RR.

3.
Urology ; 165: 54-58, 2022 07.
Article in English | MEDLINE | ID: mdl-35469806

ABSTRACT

OBJECTIVE: To describe our technique and early results for inflatable penile prosthesis (IPP) deactivation via puncture and drainage in the office setting to avoid penile explanting interventions in high-risk surgical patients. METHODS: A retrospective chart review of patients with high perioperative risk who had undergone IPP prosthesis puncture in the office setting between March 2020 and May 2021 was performed. Variables included age, the reason for penile prosthesis implantation and deactivation, time frame from implantation to deactivation, type of penile implant, follow-up time, and complications. Clinical information and procedural consent from patients with mental impairment were obtained from caretakers or legal guardians. RESULTS: In all the cases, the implants were in a good position and cycled well without difficulty before undergoing the drainage. Ten patients underwent the deactivation procedure, with ages ranging from 81 to 93 years old (mean 88 ± 3.74), 9 cases had a dementia diagnosis, and 1 case of penile implant aversion. Mean follow-up was 8.4 months ± 2.3, and there were no reported complications during the follow-up period. CONCLUSION: Permanent deactivation of IPP via in-office puncture and drainage represents a safe, feasible, and reliable option for those patients with multiple comorbidities and caretakers who desire removal of normally cycling, well-positioned, and uninfected penile implants. We strongly recommend all our patients with severe cognitive decline have their implants devices punctured to prevent any potential complications.


Subject(s)
Erectile Dysfunction , Penile Implantation , Penile Prosthesis , Aged, 80 and over , Erectile Dysfunction/etiology , Erectile Dysfunction/surgery , Humans , Male , Penile Implantation/adverse effects , Penile Prosthesis/adverse effects , Penis/surgery , Prosthesis Design , Punctures/adverse effects , Retrospective Studies
4.
J Urol ; 204(5): 948-949, 2020 11.
Article in English | MEDLINE | ID: mdl-32985926
5.
BMJ Surg Interv Health Technol ; 2(1): e000056, 2020.
Article in English | MEDLINE | ID: mdl-35047795

ABSTRACT

OBJECTIVES: Cryoablation for prostate cancer is typically performed under general anaesthesia. We explore the safety, feasibility and costs of in-office MRI-targeted prostate partial gland cryoablation (PGC) under local anaesthesia. We hypothesise that an office-based procedure under local anaesthesia may yield greater patient convenience and lower health costs with similar outcomes to a general anaesthesia approach. DESIGN/PARTICIPANTS/SETTING/INTERVENTIONS: Retrospective study of men diagnosed with clinically significant prostate cancer (grade group (GG) ≥2) who elected to undergo in-office PGC under local anaesthesia. MAIN OUTCOME MEASURES: A total of 55 men with GG ≥2 prostate cancer underwent PGC under local anaesthesia, and 35 of 43 men (81.4%) who attained ≥6 months of follow-up post-treatment underwent MRI-targeted surveillance biopsy. We used MRI findings and targeted biopsy to characterise post-PGC oncological outcomes. Complications were categorised using Common Terminology Criteria for Adverse Events (CTCAE). Expanded Prostate Cancer Index-Clinical Practice was used to characterise urinary and sexual function scores at baseline, 4 and 9 months post-PGC. Time-driven activity-based costing was used to determine healthcare costs of in-office PGC. RESULTS: Five (9.1%) men experienced CTCAE score 3 adverse events. Urinary and sexual function did not change significantly from baseline to 4 months (p=0.20 and p=0.08, respectively) and 9 months (p=0.23 and p=0.67, respectively). Twenty-two men (62.9%) had no cancer or GG1 and 13 (37.1%) men had GG≥2 on post-PGC biopsy. Moreover, the median cost of in-office PGC was US$4,463.05 (range US$4,087.19-US7,238.16) with disposables comprising 69% of the cost. CONCLUSIONS: In-office PGC is feasible under local anaesthesia with favourable functional outcome preservation and adverse events profile at significantly lower costs compared with a general anaesthesia approach.

6.
Pract Radiat Oncol ; 10(2): e82-e90, 2020.
Article in English | MEDLINE | ID: mdl-31761540

ABSTRACT

PURPOSE: The optimal management of men with prostate cancer at high risk of recurrence postradical prostatectomy is controversial. The clinical utility of the Decipher test was evaluated prospectively on postoperative treatment decisions and patient-reported outcomes. METHODS AND MATERIALS: In the study, 246 eligible men across 19 centers were enrolled. Patients were dichotomized into those considering adjuvant or salvage radiation therapy (ART or SRT). Participating providers submitted a management recommendation before and after receiving the Decipher test results. Treatment received within 12 months and a validated survey on prostate cancer-related anxiety were collected longitudinally. RESULTS: Pre-Decipher, treatment was recommended for 12% and 40% for the ART and SRT arms, respectively. Post-Decipher, 17% and 30% of treatment recommendations changed in the ART and SRT arms, respectively. Post-Decipher treatment recommendation was administered 78% and 76% of the time in the ART and SRT arms, respectively. Multivariable analysis confirmed that the Decipher score was an independent predictor for change in management for both adjuvant and salvage patients. The number needed to test to change management for one patient was 4. Cancer-specific anxiety decreased among Decipher risk categories in both arms. CONCLUSIONS: Use of Decipher postradical prostatectomy test was associated with postoperative treatment decisions. Overall, high Decipher risk was associated with an increase in treatment intensity whereas low risk scores were associated with a decrease in therapy administered independent of clinical and pathologic risk factors.


Subject(s)
Genomics/methods , Prostatectomy/methods , Prostatic Neoplasms/surgery , Aged , Humans , Male , Middle Aged
8.
J Urol ; 202(5): 952-958, 2019 11.
Article in English | MEDLINE | ID: mdl-31144591

ABSTRACT

PURPOSE: The SPARED CRN (Study of Prostate Ablation Related Energy Devices Coordinated Registry Network) is a private-public partnership between academic and community urologists, the FDA (U.S. Food and Drug Administration), the Medical Device Epidemiology Network and device manufacturers to examine the safety and effectiveness of technologies for partial gland ablation in men with localized prostate cancer. MATERIALS AND METHODS: We report on a recent workshop at the FDA with thought leaders to discuss a critical framework for partial gland ablation, focusing on patient selection, surgical planning, followup, study design and appropriate comparators in terms of adverse events and cancer control outcomes. We summarize salient points from experts in urology, oncology and epidemiology that were presented and discussed in an open forum. RESULTS: Given the challenges in achieving patient and physician equipoise to perform a randomized trial, as well as an inherent paradigm shift when comparing partial gland ablation (inability to assess prostate specific antigen recurrence) to whole gland treatments, the group focused on objective performance criteria and goals as a platform to guide the creation of single arm studies in the SPARED CRN. CONCLUSIONS: This summit lays the foundation for prospective, multi-center data collection and evaluation of novel medical devices and drug/device combinations for partial gland ablation.


Subject(s)
Ablation Techniques/methods , Forecasting , Neoplasm Staging/methods , Patient Selection , Prostatectomy/methods , Prostatic Neoplasms/surgery , Biopsy , Follow-Up Studies , Humans , Magnetic Resonance Imaging/methods , Male , Middle Aged , Prostatic Neoplasms/diagnosis , Registries , Retrospective Studies
10.
Int J Impot Res ; 30(3): 93-96, 2018 Jun.
Article in English | MEDLINE | ID: mdl-29795532

ABSTRACT

Few studies have examined the roles of dorsal penile nerve block (DPNB) and penile ring block (PRB) in surgery of inflatable penile prosthesis (IPP) placement. We sought to compare the postoperative pain outcomes of two different medications used in DPNB plus PRB. We thus carried out a prospective study of patients with erectile dysfunction who underwent "de novo" IPP placement between January 2013 and June 2013. Patients were divided to one of three groups: 1-DPNB plus PRB with bupivacaine injection; 2-DPNB plus PRB with ropivacaine injection and, 3-Control group without DPNB or PRB injection. Postoperative pain score and pain medication usage were recorded 2 h postoperatively, and every 24 h, for a week. The Visual Analog Scale (VAS) was used as pain scale measurement. A total of 131 patients were included in this study: 40 to bupivacaine, 47 to ropivacaine, and the rest were controls. Two hours postoperatively, mean VAS was significantly different (p < 0.0001) between medicated patients and the control group, however, no significant differences were observed between medication groups. Mean VAS was not significantly different among the groups from post-surgical day 2 thru 7. In conclusion, DPNB plus PRB during IPP provided effective analgesia in the immediate post-operative recovery.


Subject(s)
Amides/therapeutic use , Anesthetics, Local/therapeutic use , Bupivacaine/therapeutic use , Pain, Postoperative/drug therapy , Penile Implantation/methods , Aged , Aged, 80 and over , Anesthesia, Local/methods , Humans , Male , Middle Aged , Pain Measurement , Penile Implantation/adverse effects , Penile Prosthesis , Prospective Studies , Ropivacaine , Treatment Outcome
11.
Transl Androl Urol ; 6(3): 529-533, 2017 Jun.
Article in English | MEDLINE | ID: mdl-28725595

ABSTRACT

BACKGROUND: With better designed devices and lower infection rates, satisfaction with inflatable penile prosthesis (IPP) placement is increasingly high. However, dissatisfaction is still present and there is disagreement regarding length and sensation changes after the IPP placement. The aim of this study was to evaluate changes in penile length, girth and sensitivity after IPP placement. METHODS: From August 2012 to January 2013 all patients undergoing "de novo" IPP surgery were invited to participate in this study. Eighty six patients met inclusion criteria while 62 agreed to participate in this observational study. A week before surgery, penile length and circumference, and glans/elbow biothesiometer readings were recorded 15 minutes after Trimix induced erection. Same measures were taken at postoperative week 6 and month 6. RESULTS: Amperage from Glans biothesiometer readings showed statistically significant shorter readings than elbow biothesiometer preoperatively, 6 weeks and 6 months after surgery (P<0.001 each). No significant sensory difference in the glans penis after IPP was noted. However, compared to preoperative Trimix induced erections, penile length and circumference were greater after IPP placement (P=0.04 and P=0.001, respectively). CONCLUSIONS: We observed statistically significant increase in penile length and girth after IPP placement without significant changes in sensory conduction.

12.
Cancer ; 123(15): 2850-2859, 2017 Aug 01.
Article in English | MEDLINE | ID: mdl-28422278

ABSTRACT

BACKGROUND: Patients with prostate cancer and their providers face uncertainty as they consider adjuvant radiotherapy (ART) or salvage radiotherapy (SRT) after undergoing radical prostatectomy. The authors prospectively evaluated the impact of the Decipher test, which predicts metastasis risk after radical prostatectomy, on decision making for ART and SRT. METHODS: A total of 150 patients who were considering ART and 115 who were considering SRT were enrolled. Providers submitted a management recommendation before processing the Decipher test and again at the time of receipt of the test results. Patients completed validated surveys on prostate cancer (PCa)-specific decisional effectiveness and PCa-related anxiety. RESULTS: Before the Decipher test, observation was recommended for 89% of patients considering ART and 58% of patients considering SRT. After Decipher testing, 18% (95% confidence interval [95% CI], 12%-25%) of treatment recommendations changed in the ART arm, including 31% among high-risk patients; and 32% (95% CI, 24%-42%) of management recommendations changed in the salvage arm, including 56% among high-risk patients. Decisional Conflict Scale (DCS) scores were better after viewing Decipher test results (ART arm: median DCS before Decipher, 25 and after Decipher, 19 [P<.001]; SRT arm: median DCS before Decipher, 27 and after Decipher, 23 [P<.001]). PCa-specific anxiety changed after Decipher testing; fear of PCa disease recurrence in the ART arm (P = .02) and PCa-specific anxiety in the SRT arm (P = .05) decreased significantly among low-risk patients. Decipher results reported per 5% increase in 5-year metastasis probability were associated with the decision to pursue ART (odds ratio, 1.48; 95% CI, 1.19-1.85) and SRT (odds ratio, 1.41; 95% CI, 1.09-1.81) in multivariable logistic regression analysis. CONCLUSIONS: Knowledge of Decipher test results was associated with treatment decision making and improved decisional effectiveness among men with PCa who were considering ART and SRT. Cancer 2017;123:2850-59. © 2017 American Cancer Society.


Subject(s)
Decision Making , Prostatectomy , Prostatic Neoplasms/radiotherapy , Radiotherapy, Adjuvant , Salvage Therapy , Aged , Anxiety/psychology , Conflict, Psychological , Humans , Logistic Models , Male , Middle Aged , Multivariate Analysis , Neoplasm Metastasis , Prospective Studies , Prostatic Neoplasms/pathology , Prostatic Neoplasms/psychology , Risk Assessment , Surveys and Questionnaires
13.
Arch. esp. urol. (Ed. impr.) ; 69(6): 353-363, jul.-ago. 2016. ilus, tab
Article in English | IBECS | ID: ibc-154268

ABSTRACT

Focalyx(TM) conceived as a response to emerging evidence data across numerous cancer lesions that questions current standard treatment approaches that too often lead to detrimental quality of life yet delivering limited survival benefit, especially in-lieu of advances in imaging technology applicable to cancer patients. The Focalyx paradigm aims to control cancer with improvement in quality of life. We initially devised 5 milestones: 1- Consistently optimize Prostate MRI imaging using the novel published protocols adopted as guidelines by societies such as the European Society of Urology and Radiology; 2- Evaluate fusion platform software solutions that existed; 3- Determine best fusion Arch. Esp. Urol. 2016; 69 (6): 353-363 353 platform for Focalyx on practicality, precision, and workflow premises; 4- Evaluate commercially available FDA approved ablative technologies to implement our treatment vision; 5- Design a treatment option that can be performed in the office setting under local anesthesia, which would not impact negatively QOL outcomes of Prostate Cancer patients and seamless constant nonintrusive practical patient-physician interaction by the Focalyx app that facilitates follow up and provides early warning signals shall any change in the disease dynamics emerge. Prostate cancer was identified as the pilot disease for Focalyx to deliver a «GPS» like solution for the prostate gland that destroys identifiable disease without adverse effects such as: cancer anxiety, urinary incontinence, loss of erections and ejaculation. Since September of 2013, over 300 men have been accrued in NCT02381990- clintrials.gov evaluating the feasibility of our solutions for imaging (FocalyxDx), Biopsy (FocalyxBx) and Treatment (FocalyxTx). In this review we detail the tools available to achieve the Focalyx paradigm for men with Prostate Cancer


Focalyx(TM) ha sido concebido como una respuesta a los múltiples datos del manejo de cáncer de próstata que cuestionan el tratamiento estándar. La evidencia actual cuestiona un beneficio en la supervivencia, especialmente tras los avances tecnológicos basados en la de imagen aplicable a pacientes con CaP. El paradigma Focalyx tiene como objetivo controlar el cáncer con una mejoría en la calidad de vida. Hemos ideado inicialmente 5 etapas: 1- optimizar imágenes de RM de próstata utilizando los protocolos aprobados como directrices por las sociedades internacionales, como la Asociación Europea de Urología y de Radiología; 2- Evaluar opciones de software de la plataforma de fusión existentes; 3- Determinar una plataforma de fusión para Focalyx basada en la practicidad y la precisión; 4- Evaluar dentro del mercado aprobado por la FDA las modalidades disponibles para implementar tratamientos de ablación; 5- Diseñar una opción de tratamiento que puede realizarse en régimen ambulatorio bajo anestesia local, que no impacte negativamente en los resultados de calidad de vida de los pacientes. El CaP ha sido identificado como la enfermedad piloto para Focalyx, para entregar un «GPS» como solución para el tratamiento dirigido de la glándula prostática destruyendo la enfermedad identificable sin efectos adversos, tales como: ansiedad por cáncer, incontinencia urinaria, pérdida de la erección y la eyaculación. Desde septiembre de 2013, más de 300 hombres han sido reclutados en NCT02381990- clintrials.gov para evaluar la viabilidad de nuestro protocolo por imagen (FocalyxDx), biopsia (FocalyxBx) y tratamiento (Focalyx- Tx). En esta revisión se detallan las herramientas disponibles para lograr el paradigma Focalyx para los hombres con CaP localizado


Subject(s)
Humans , Male , Prostatic Neoplasms/therapy , Survivorship , Quality of Life , Health Planning Guidelines , Practice Guidelines as Topic , Guidelines as Topic , Catheter Ablation , Transurethral Resection of Prostate/methods , Societies, Scientific/organization & administration , Societies, Scientific/standards , Societies, Scientific , Magnetic Resonance Imaging/methods , Magnetic Resonance Spectroscopy/methods
14.
J Urol ; 195(3): 612-8, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26403586

ABSTRACT

PURPOSE: The cell cycle progression test is a validated molecular assay that assesses prostate cancer specific disease progression and mortality risk when combined with clinicopathological parameters. We present the results from PROCEDE-1000, a large, prospective registry designed to evaluate the impact of the cell cycle progression test on shared treatment decision making for patients newly diagnosed with prostate cancer. MATERIALS AND METHODS: Untreated patients with newly diagnosed prostate adenocarcinoma were enrolled in the study and the cell cycle progression test was performed on the initial prostate biopsy tissue. A set of 4 sequential surveys tracked changes relative to initial therapy recommendations (before cell cycle progression) based on clinicopathological parameters following physician review of the cell cycle progression test result, physician/patient review of the cell cycle progression test results and a minimum of 3 months of clinical followup (actual treatment). RESULTS: Of the 1,596 patients enrolled in this registry 1,206 were eligible for analysis. There was a significant reduction in the treatment burden recorded at each successive evaluation (p <0.0001), with the mean number of treatments per patient decreasing from 1.72 before the cell cycle progression test to 1.16 in actual followup. The cell cycle progression test caused a change in actual treatment in 47.8% of patients. Of these changes 72.1% were reductions and 26.9% were increases in treatment. For each clinical risk category there was a significant change in treatment modality (intervention vs nonintervention) before vs after cell cycle progression testing (p=0.0002). CONCLUSIONS: The cell cycle progression test has a significant impact in assisting physicians and patients reach personalized treatment decisions.


Subject(s)
Cell Cycle/physiology , Prostatic Neoplasms/pathology , Prostatic Neoplasms/therapy , Adult , Aged , Aged, 80 and over , Humans , Male , Middle Aged , Molecular Diagnostic Techniques , Patient Preference , Practice Patterns, Physicians' , Prospective Studies , Registries
15.
J Urol ; 193(4): 1305-10, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25281778

ABSTRACT

PURPOSE: Bladder dysfunction influences recovery of urinary continence after radical prostatectomy. We performed a multicenter, randomized, double-blind study evaluating solifenacin vs placebo on return to continence in patients who were still incontinent 7 to 21 days after catheter removal after robot-assisted radical prostatectomy. MATERIALS AND METHODS: A wireless personal digital assistant was given to patients the day of catheter removal. Encrypted answers were transmitted daily to dedicated servers. After a 7 to 21-day treatment-free washout period, patients requiring 2 to 10 pads per day for 7 consecutive days were randomized (1:1) to 5 mg solifenacin daily or placebo. The primary end point was time from first dose to continence defined as 0 pads per day or a dry security pad for 3 consecutive days. Secondary end points included proportion of patients continent at end of study, average change in pads per day number and quality of life assessments. RESULTS: A total of 1,086 screened patients recorded personal digital assistant information. Overall 640 patients were randomized to solifenacin vs placebo and 17 failed to take medication. There was no difference in time to continence (p=0.17). Continence was achieved by study end in 91 of 313 (29%) vs 66 of 309 (21%), respectively (p=0.04). Pads per day change from baseline was -3.2 and -2.9, respectively (p=0.03). Dry mouth was the only common adverse event seen in 6.1% and 0.6%, respectively. Constipation rates were similar. The overall rate of continence in the entire population from screening to end of study was 73%. CONCLUSIONS: There was no effect on primary outcome but some secondary end points benefited the solifenacin arm. The study provides level 1B clinical evidence for continence outcomes after robot-assisted radical prostatectomy.


Subject(s)
Muscarinic Antagonists/therapeutic use , Prostatectomy/methods , Quinuclidines/therapeutic use , Robotic Surgical Procedures , Tetrahydroisoquinolines/therapeutic use , Urinary Incontinence/drug therapy , Adult , Aged , Double-Blind Method , Humans , Male , Middle Aged , Prostatectomy/adverse effects , Solifenacin Succinate , Urinary Incontinence/etiology
16.
Eur Urol ; 67(6): 1160-1167, 2015 Jun.
Article in English | MEDLINE | ID: mdl-25301759

ABSTRACT

BACKGROUND: The natural history of prostate-specific antigen (PSA)-defined biochemical recurrence (BCR) of prostate cancer (PCa) after definitive local therapy is highly variable. Validated prediction models for PCa-specific mortality (PCSM) in this population are needed for treatment decision-making and clinical trial design. OBJECTIVE: To develop and validate a nomogram to predict the probability of PCSM from the time of BCR among men with rising PSA levels after radical prostatectomy. DESIGN, SETTING, AND PARTICIPANTS: Between 1987 and 2011, 2254 men treated by radical prostatectomy at one of five high-volume hospitals experienced BCR, defined as three successive PSA rises (final value >0.2 ng/ml), single PSA >0.4 ng/ml, or use of secondary therapy administered for detectable PSA >0.1 ng/ml. Clinical information and follow-up data were modeled using competing-risk regression analysis to predict PCSM from the time of BCR. INTERVENTION: Radical prostatectomy for localized prostate cancer and subsequent PCa BCR. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: PCSM. RESULTS AND LIMITATIONS: The 10-yr PCSM and mortality from competing causes was 19% (95% confidence interval [CI] 16-21%) and 17% (95% CI 14-19%), respectively. A nomogram predicting PCSM for all patients had an internally validated concordance index of 0.774. Inclusion of PSA doubling time (PSADT) in a nomogram based on standard parameters modestly improved predictive accuracy (concordance index 0.763 vs 0.754). Significant parameters in the models were preoperative PSA, pathological Gleason score, extraprostatic extension, seminal vesicle invasion, time to PCa BCR, PSA level at PCa BCR, and PSADT (all p<0.05). CONCLUSIONS: We constructed and validated a nomogram to predict the risk of PCSM at 10 yr among men with PCa BCR after radical prostatectomy. The nomogram may be used for patient counseling and the design of clinical trials for PCa. PATIENT SUMMARY: For men with biochemical recurrence of prostate cancer after radical prostatectomy, we have developed a model to predict the long-term risk of death from prostate cancer.


Subject(s)
Neoplasm Recurrence, Local/blood , Nomograms , Prostate-Specific Antigen/blood , Prostate/surgery , Prostatectomy/methods , Prostatic Neoplasms/mortality , Aged , Aged, 80 and over , Disease-Free Survival , Humans , Male , Middle Aged , Models, Statistical , Neoplasm Recurrence, Local/diagnosis , Neoplasm Recurrence, Local/epidemiology , Prognosis , Prostate/pathology , Prostatic Neoplasms/blood , Prostatic Neoplasms/diagnosis , Prostatic Neoplasms/pathology , Prostatic Neoplasms/surgery , Risk Factors
17.
Ann Diagn Pathol ; 17(1): 123-6, 2013 Feb.
Article in English | MEDLINE | ID: mdl-22056038

ABSTRACT

We report an unprecedented case of an oncocytoma of the adrenal gland medulla in a 61-year-old woman. The patient presented with right flank pain and hematuria. Computed tomographic studies revealed a right adrenal gland mass that measured 2 cm, which was subsequently excised laparoscopically. Grossly, the tumor in the medulla measured 1.9 × 1.2 cm, weighed 5 g, and had a solid tan-brown cut surface. Histologically, it consisted of large tumor cells containing eosinophilic granular cytoplasm arranged in trabecular and nodular patterns. Electron microscopy revealed closely packed mitochondria in the cytoplasm of almost all tumor cells. The tumor cells were immunohistochemically positive for vimentin. The patient resumed usual activities 2 weeks after surgery, and at 6-month follow-up, she is doing well.


Subject(s)
Adenoma, Oxyphilic/diagnostic imaging , Adenoma, Oxyphilic/pathology , Adrenal Gland Neoplasms/diagnostic imaging , Adrenal Gland Neoplasms/pathology , Adenoma, Oxyphilic/surgery , Adrenal Gland Neoplasms/surgery , Adrenal Medulla/metabolism , Adrenal Medulla/pathology , Adrenal Medulla/ultrastructure , Female , Four-Dimensional Computed Tomography , Humans , Laparoscopy , Middle Aged , Mitochondria/pathology , Treatment Outcome , Vimentin/metabolism
18.
Indian J Urol ; 28(1): 9-14, 2012 Jan.
Article in English | MEDLINE | ID: mdl-22557710

ABSTRACT

Prostate cancer is a global public health problem, and it is the most common cancer in American men and the second cause for cancer-related death. Experimental evidence shows that prostate tissue possesses cannabinoid receptors and their stimulation results in anti-androgenic effects. To review currently relevant findings related to effects of cannabinoid receptors in prostate cancer. PubMed search utilizing the terms "cannabis," "cannabinoids," "prostate cancer," and "cancer pain management," giving preference to most recent publications was done. Articles identified were screened for their relevance to the field of prostate cancer and interest to both urologist and pain specialists. Prostate cancer cells possess increased expression of both cannabinoid 1 and 2 receptors, and stimulation of these results in decrease in cell viability, increased apoptosis, and decreased androgen receptor expression and prostate-specific antigen excretion. It would be of interest to conduct clinical studies utilizing cannabinoids for patients with metastatic prostate cancer, taking advantage not only of its beneficial effects on prostate cancer but also of their analgesic properties for bone metastatic cancer pain.

19.
Arch Esp Urol ; 64(8): 681-94, 2011 Oct.
Article in English, Spanish | MEDLINE | ID: mdl-22052751

ABSTRACT

The introduction and widespread adoption of PSA has revolutionized the way prostate cancer is diagnosed and treated. However, the use of PSA has also led to over-diagnosis and overtreatment of prostate cancer resulting in controversy about its use for screening. PSA also has limited predictive accuracy for predicting outcomes after treatment and for making clinical decisions about adjuvant and salvage therapies. Hence, there is an urgent need for novel biomarkers to supplement PSA for detection and management of prostate cancer. Despite the progress in developing new biomarkers, several obstacles remain before such biomarkers can be clinically used. These challenges include analytical and regulatory barriers, issues with study design and data analysis that lead to lack of reproducibility of promising results, and the lack of large scale trials to adequately assess the utility of promising biomarkers. In this article we discuss the challenges in biomarker research and the statistical considerations for biomarker evaluation. There is a plethora of promising blood and urine based biomarkers. For the purpose of this review, we focus on PSA derived forms, human kallikrein 2, Early Prostate Cancer Antigen, Transforming Growth Factor-Beta 1 and Interleukin-6, Endoglin, PCA3, AMACR and ETS Gene Fusions. These biomarkers have shown promise in early studies and are at various stages of development. However, in the future it is very likely that a panel of biomarkers will be used to achieve sufficient degree of certainty in order to guide clinical decisions. To be able to be used commercially such a panel will have to answer clinically relevant questions in a simple and cost-effective way.


Subject(s)
Adenocarcinoma/blood , Biomarkers, Tumor/blood , Prostatic Neoplasms/blood , Adenocarcinoma/diagnosis , Adenocarcinoma/pathology , Adenocarcinoma/urine , Biomarkers, Tumor/urine , Clinical Trials as Topic , Humans , Male , Neoplasm Staging/methods , Predictive Value of Tests , Prognosis , Prostatic Neoplasms/diagnosis , Prostatic Neoplasms/pathology , Prostatic Neoplasms/urine , Sensitivity and Specificity , Validation Studies as Topic
20.
Arch Esp Urol ; 64(8): 839-46, 2011 Oct.
Article in English, Spanish | MEDLINE | ID: mdl-22052765

ABSTRACT

The last 10 years have witnessed unprecedented evolution regarding de surgical removal of the prostate gland. Laparoscopic radical prostatectomy broke the open paradigm and started to generate great excitement and expectations. Shortly however, robot-assisted, laparoscopic - Robotic Surgery - emerged to address a fundamental pitfall of prostate laparoscopic surgery: execution reproducibility. Today, robotic assisted laparoscopic prostatectomy is the most used surgical approach to remove the prostate gland. Consistent advantages of this technique are: a shorter convalescent state, marked decrease in blood loss and in experienced hands, shorter average surgical times. Importantly it served to highlight the importance of outcomes as ultimate judge of a procedure success. The data suggest equivalency in long-term functional and oncological outcomes, while clear advantages in the short run: perioperative outcomes with patient rapid return to productive state. That said, the major challenge for robotic surgeons still remains: establish a paradigm that breaks with the tradition and prevents biased reporting due to technology and marketing enthusiasm, but rather takes a critical approach based in prospective, controlled, randomize clinical trials. If the latter objective is reached, urologic robotic surgeons will deliver counseling based on clinical evidence delivering major progress for our Urology field.


Subject(s)
Adenocarcinoma/surgery , Laparoscopy/methods , Prostatectomy/methods , Prostatic Neoplasms/surgery , Robotics/methods , Blood Loss, Surgical , Clinical Trials as Topic/statistics & numerical data , Erectile Dysfunction/epidemiology , Erectile Dysfunction/prevention & control , Forecasting , Humans , Lymph Node Excision/methods , Male , Multicenter Studies as Topic/statistics & numerical data , Postoperative Complications/epidemiology , Postoperative Complications/prevention & control , Randomized Controlled Trials as Topic/statistics & numerical data , Time Factors , Treatment Outcome , Urinary Incontinence/epidemiology , Urinary Incontinence/prevention & control
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