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1.
Proc Natl Acad Sci U S A ; 120(35): e2306782120, 2023 08 29.
Artigo em Inglês | MEDLINE | ID: mdl-37607227

RESUMO

CD40 is a central costimulatory receptor implicated in productive antitumor immune responses across multiple cancers, including bladder cancer. Despite strong preclinical rationale, systemic administration of therapeutic agonistic antibodies targeting the CD40 pathway has demonstrated dose-limiting toxicities with minimal clinical activity, emphasizing an important need for optimized CD40-targeted approaches, including rational combination therapy strategies. Here, we describe a role for the endogenous IL-15 pathway in contributing to the therapeutic activity of CD40 agonism in orthotopic bladder tumors, with upregulation of transpresented IL-15/IL-15Rα surface complexes, particularly by cross-presenting conventional type 1 DCs (Dendritic Cells), and associated enrichment of activated CD8 T cells. In bladder cancer patient samples, we identify DCs as the primary source of IL-15, although they lack high levels of IL-15Rα at baseline. Using humanized immunocompetent orthotopic bladder tumor models, we demonstrate the ability to therapeutically augment this interaction through combined treatment with anti-CD40 agonist antibodies and exogenous IL-15, including the fully-human Fc-optimized antibody 2141-V11 currently in clinical development for the treatment of bladder cancer. Collectively, these data reveal an important role for IL-15 in mediating antitumor CD40 agonist responses in bladder cancer and provide key proof-of-concept for combined use of Fc-optimized anti-CD40 agonist antibodies and agents targeting the IL-15 pathway. These data support expansion of ongoing clinical studies evaluating anti-CD40 agonist antibodies and IL-15-based approaches to develop combinations of these promising therapeutics for the treatment of patients with bladder cancer.


Assuntos
Interleucina-15 , Neoplasias da Bexiga Urinária , Humanos , Neoplasias da Bexiga Urinária/tratamento farmacológico , Bexiga Urinária , Anticorpos Monoclonais/farmacologia , Anticorpos Monoclonais/uso terapêutico , Terapia Combinada , Antígenos CD40 , Fragmentos Fc das Imunoglobulinas
2.
World J Urol ; 42(1): 315, 2024 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-38734774

RESUMO

INTRODUCTION: The combination of sequential intravesical gemcitabine and docetaxel (Gem/Doce) chemotherapy has been considered a feasible option for BCG (Bacillus Calmette-Guérin) treatment in non-muscle invasive bladder cancer (NMIBC), gaining popularity during BCG shortage period. We seek to determine the efficacy of the treatment by comparing Gem/Doce induction alone vs induction with maintenance, and to evaluate the treatment outcomes of two different dosage protocols. METHODS: A bi-center retrospective analysis of consecutive patients treated with Gem/Doce for NMIBC between 2018 and 2023 was performed. Baseline characteristics, risk group stratification (AUA 2020 guidelines), pathological, and surveillance reports were collected. Kaplan-Meier survival analysis was performed to detect Recurrence-free survival (RFS). RESULTS: Overall, 83 patients (68 males, 15 females) with a median age of 73 (IQR 66-79), and a median follow-up time of 18 months (IQR 9-25), were included. Forty-one had an intermediate-risk disease (49%) and 42 had a high-risk disease (51%). Thirty-seven patients (45%) had a recurrence; 19 (23%) had a high-grade recurrence. RFS of Gem/Doce induction-only vs induction + maintenance was at 6 months 88% vs 100%, at 12 months 71% vs 97%, at 18 months 57% vs 91%, and at 24 months 31% vs 87%, respectively (log-rank, p < 0.0001). Patients who received 2 g Gemcitabine with Docetaxel had better RFS for all-grade recurrences (log-rank, p = 0.017). However, no difference was found for high-grade recurrences. CONCLUSION: Gem/Doce induction with maintenance resulted in significantly better RFS than induction-only. Combining 2 g gemcitabine with docetaxel resulted in better RFS for all-grade but not for high-grade recurrences. Further prospective trials are necessary to validate our results.


Assuntos
Desoxicitidina , Docetaxel , Gencitabina , Invasividade Neoplásica , Neoplasias da Bexiga Urinária , Humanos , Neoplasias da Bexiga Urinária/tratamento farmacológico , Neoplasias da Bexiga Urinária/patologia , Docetaxel/administração & dosagem , Desoxicitidina/análogos & derivados , Desoxicitidina/administração & dosagem , Masculino , Feminino , Idoso , Estudos Retrospectivos , Administração Intravesical , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Quimioterapia de Manutenção/métodos , Quimioterapia de Indução/métodos , Relação Dose-Resposta a Droga , Resultado do Tratamento , Medição de Risco , Neoplasias não Músculo Invasivas da Bexiga
3.
J Urol ; 209(3): 515-524, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36475808

RESUMO

PURPOSE: Treatment options for the management of upper tract urothelial cancer are based on accurate staging. However, the performance of conventional cross-sectional imaging for clinical lymph node staging (N-staging) remains poorly investigated. This study aims to evaluate the diagnostic accuracy of conventional cross-sectional imaging for upper tract urothelial cancer N-staging. MATERIALS AND METHODS: This study was a multicenter, retrospective, observational study. We included 865 nonmetastatic (M0) upper tract urothelial cancer patients treated with curative intended surgery and lymph node dissection who had been staged with conventional cross-sectional imaging before surgery. We compared clinical (c) and pathological (p) N-staging results to evaluate the concordance of node-positive (N+) and node-negative (N0) disease and calculate cN-staging's diagnostic accuracy. RESULTS: Conventional cross-sectional imaging categorized 750 patients cN0 and 115 cN+. Lymph node dissection categorized 641 patients pN0 and 224 pN+. The cN-stage was pathologically downstaged in 6.8% of patients, upstaged in 19%, and found concordant in 74%. The sensitivity and specificity of cN-staging were 25% (95% CI 20; 31) and 91% (95% CI 88; 93). Positive and negative likelihood ratios were 2.7 (95% CI 2.0; 3.8) and 0.83 (95% CI 0.76; 0.89). The area under the receiver operating characteristics curve (0.58, 95% CI 0.55; 0.61) revealed low diagnostic accuracy. CONCLUSIONS: Conventional cross-sectional imaging had low sensitivity in detecting upper tract urothelial cancer pN+ disease. However, cN+ increased the likelihood of pN+ by almost threefold. Thus, conventional cross-sectional imaging is a rule-in but not a rule-out test. Lymph node dissection should remain the standard during extirpative upper tract urothelial cancer surgery to obtain accurate N-staging. cN+ could be a strong argument for early systemic treatment.


Assuntos
Carcinoma de Células de Transição , Neoplasias da Bexiga Urinária , Humanos , Estudos Retrospectivos , Linfonodos/diagnóstico por imagem , Linfonodos/cirurgia , Linfonodos/patologia , Neoplasias da Bexiga Urinária/cirurgia , Carcinoma de Células de Transição/diagnóstico , Carcinoma de Células de Transição/cirurgia , Carcinoma de Células de Transição/patologia , Excisão de Linfonodo/métodos , Estadiamento de Neoplasias
4.
BJU Int ; 132(4): 390-396, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37186173

RESUMO

OBJECTIVES: To compare the safety and efficacy of oral apixaban with that of injectable enoxaparin after robot-assisted radical cystectomy (RARC) for venous thromboembolism (VTE) thromboprophylaxis. MATERIALS AND METHODS: We conducted a retrospective review of prospectively collected data for all RARC patients treated at our tertiary care centre between 2018 and 2022. The study included two groups: patients who were subject to a prospectively implemented protocol from October 2021 to the present, comprising a 21-day postoperative course of apixaban 2.5 mg twice daily after discharge, and patients treated prior to October 2021 who received enoxaparin 40 mg daily. Baseline demographics and clinical characteristics, such as VTE (defined as deep vein thrombosis and pulmonary embolism), were analysed. The primary outcome was incidence of symptomatic VTE confirmed with definitive imaging within 90 days of RARC. Secondary outcomes included major bleeding, complications, readmission, and mortality within 30 days postoperatively. Descriptive statistics included baseline patient characteristics, operative information and complications. Differences in baseline characteristics and postoperative data were compared between groups. Multivariate logistic regression was used to determine associations between variables and the primary outcome. RESULTS: A total of 124 patients received apixaban and 250 patients received enoxaparin prophylaxis. Ten patients (2.7%) experienced a VTE within 90 days postoperatively (two [1.6%] apixaban group vs eight [3.2%] enoxaparin group; P = 0.5). After patient stratification into European Association of Urology risk groups, no statistically significant difference in VTE rates was seen between groups in the apixaban (2.7% high- + intermediate-risk group vs 1.1% low-risk group; P = 0.5) and enoxaparin cohorts (4.3% high- + intermediate-risk group vs 2.5% low-risk group; P = 0.5). On multivariate logistic regression, no variables were associated with the development of the primary outcome. CONCLUSION: Prophylaxis with apixaban and enoxaparin showed no statistically significant differences in VTE rates among RARC patients. Apixaban appears to be safe and effective for VTE prophylaxis after RARC.


Assuntos
Robótica , Tromboembolia Venosa , Humanos , Enoxaparina/uso terapêutico , Enoxaparina/efeitos adversos , Anticoagulantes , Cistectomia/efeitos adversos , Tromboembolia Venosa/epidemiologia
5.
BJU Int ; 132(1): 75-83, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-36797809

RESUMO

OBJECTIVE: To profile the cell-free urine supernatant and plasma of a small cohort of clear-cell renal cell carcinoma (ccRCC) patients by measuring the relative concentrations of 92 proteins related to inflammation. Using The Cancer Genome Atlas (TCGA), we then performed a targeted mRNA analysis of genes encoding the above proteins and defined their effects on overall survival (OS). SUBJECTS/PATIENTS AND METHODS: Samples were collected prospectively from ccRCC patients. A multiplex proximity extension assay was used to measure the concentrations of 92 inflammation-related proteins in cell-free urine supernatants and plasma. Transcriptomic and clinical information from ccRCC patients was obtained from TCGA. Unsupervised clustering and differential protein expression analyses were performed on protein concentration data. Targeted mRNA analysis on genes encoding significant differentially expressed proteins was performed using TCGA. Backward stepwise regression analyses were used to build a nomogram. The performance of the nomogram and clinical benefit was assessed by discrimination and calibration, and a decision curve analysis, respectively. RESULTS: Unsupervised clustering analysis revealed inflammatory signatures in the cell-free urine supernatant of ccRCC patients. Backward stepwise regressions using TCGA data identified transcriptomic risk factors and risk groups associated with OS. A nomogram to predict 2-year and 5-year OS was developed using these risk factors. The decision curve analysis showed that our model was associated with a net benefit improvement compared to the treat-all/none strategies. CONCLUSION: We defined four novel biomarkers using proteomic and transcriptomic data that distinguish severity of prognosis in ccRCC. We showed that these biomarkers can be used in a model to predict 2-year and 5-year OS in ccRCC across different tumour stages. This type of analysis, if validated in the future, provides non-invasive prognostic information that could inform either management or surveillance strategies for patients.


Assuntos
Carcinoma de Células Renais , Carcinoma , Neoplasias Renais , Humanos , Carcinoma de Células Renais/genética , Proteômica , Inflamação , Neoplasias Renais/genética , Prognóstico
6.
Int J Urol ; 30(1): 63-69, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36349904

RESUMO

OBJECTIVES: Technical limitations of ureteroscopic (URS) biopsy has been considered responsible for substantial upgrading rate in upper tract urothelial carcinoma (UTUC). However, the impact of tumor specific factors for upgrading remain uninvestigated. METHODS: Patients who underwent URS biopsy were included between 2005 and 2020 at 13 institutions. We assessed the prognostic impact of upgrading (low-grade on URS biopsy) versus same grade (high-grade on URS biopsy) for high-grade UTUC tumors on radical nephroureterectomy (RNU) specimens. RESULTS: This study included 371 patients, of whom 112 (30%) and 259 (70%) were biopsy-based low- and high-grade tumors, respectively. Median follow-up was 27.3 months. Patients with high-grade biopsy were more likely to harbor unfavorable pathologic features, such as lymphovascular invasion (p < 0.001) and positive lymph nodes (LNs; p < 0.001). On multivariable analyses adjusting for the established risk factors, high-grade biopsy was significantly associated with worse overall (hazard ratio [HR] 1.74; 95% confidence interval [CI], 1.10-2.75; p = 0.018), cancer-specific (HR 1.94; 95% CI, 1.07-3.52; p = 0.03), and recurrence-free survival (HR 1.80; 95% CI, 1.13-2.87; p = 0.013). In subgroup analyses of patients with pT2-T4 and/or positive LN, its significant association retained. Furthermore, high-grade biopsy in clinically non-muscle invasive disease significantly predicted upstaging to final pathologically advanced disease (≥pT2) compared to low-grade biopsy. CONCLUSIONS: High tumor grade on URS biopsy is associated with features of biologically and clinically aggressive UTUC tumors. URS low-grade UTUC that becomes upgraded to high-grade might carry a better prognosis than high-grade UTUC on URS. Tumor specific factors are likely to be responsible for upgrading to high-grade on RNU.


Assuntos
Carcinoma de Células de Transição , Neoplasias Ureterais , Neoplasias da Bexiga Urinária , Humanos , Nefroureterectomia , Carcinoma de Células de Transição/patologia , Neoplasias da Bexiga Urinária/cirurgia , Prognóstico , Ureteroscopia , Neoplasias Ureterais/cirurgia , Neoplasias Ureterais/patologia , Biópsia , Estudos Retrospectivos
7.
BJU Int ; 130(6): 815-822, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35727844

RESUMO

OBJECTIVES: To prospectively analyse robotically administered transperitoneal transversus abdominis plane (robot-assisted transversus abdominis plane [RTAP]) compared with both ultrasonography-guided transversus abdominis plane (UTAP) and local anaesthesia (LA) with regard to pain control and narcotic use in patients undergoing robot-assisted prostatectomy (RARP) or robot-assisted partial nephrectomy (RAPN). SUBJECTS/PATIENTS AND METHODS: Patients undergoing RARP or RAPN were randomized in a single-blind 2:2:1 fashion to RTAP:UTAP:LA, with the study powered to evaluate superiority of UTAP to LA and non-inferiority of RTAP to UTAP. We compared time to deliver the block, operating room time, postoperative pain scores using the visual analogue scale, and intra-operative and postoperative analgesia consumption. RESULTS: A total of 143 patients were randomized and received treatment. There was no significant difference in patient baseline characteristics. UTAP did not demonstrate superiority to LA in terms of pain control. RTAP and LA were faster to administer than UTAP (time to perform block 2.5 vs 2.5 vs 6.25 min; P < 0.001). There was no difference in postoperative narcotic, acetaminophen, ketorolac or ondansetron requirements among the three groups (P > 0.05). The study was terminated early due to the unexpected efficacy of LA. CONCLUSION: This study showed that UTAP and RTAP do not provide superior pain control to LA. The efficiency, effectiveness, and ease of administration of LA make it an excellent option for first-line therapy for postoperative analgesia.


Assuntos
Robótica , Urologia , Masculino , Humanos , Anestesia Local/métodos , Método Simples-Cego , Músculos Abdominais/diagnóstico por imagem , Dor Pós-Operatória/prevenção & controle , Ultrassonografia , Entorpecentes , Ultrassonografia de Intervenção , Anestésicos Locais
8.
World J Urol ; 40(6): 1343-1350, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32556676

RESUMO

PURPOSE: To review non-opioid based protocols in urologic oncologic surgery and describe our institutional methods of eliminating peri-operative opioids. METHODS: A thorough literature review was performed using PUBMED to identify articles pertaining to reducing or eliminating narcotic use in genitourinary cancer surgery. Studies were analyzed pertaining to protocols utilized in genitourinary cancer surgery, major abdominal and/or pelvic non-urologic surgery. RESULTS: Reducing or eliminating peri-operative narcotics should begin with an institutionalized protocol made in conjunction with the anesthesia department. Pre-operative regimens should consist of appropriate counseling, gabapentin, and acetaminophen with or without a non-steroidal anti-inflammatory medications. Prior to incision, a regional block or local anesthetic should be delivered. Anesthesiologists may develop opioid-free protocols for achieving and maintaining general anesthesia. Post-operatively, patients should be on a scheduled regimen of ketorolac, gabapentin, and acetaminophen. CONCLUSION: Eliminating peri-operative narcotic use is feasible for major genitourinary oncologic surgery. Patients not only have improved peri-operative outcomes but also are at significantly reduced risk of developing long-term opioid use. Through the implementation of a non-opioid protocol, urologists are able to best serve their patients while positively contributing to reducing the opioid epidemic.


Assuntos
Analgésicos Opioides , Dor Pós-Operatória , Acetaminofen/uso terapêutico , Analgésicos Opioides/uso terapêutico , Gabapentina/uso terapêutico , Humanos , Entorpecentes/uso terapêutico , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/prevenção & controle
9.
Proc Natl Acad Sci U S A ; 116(37): 18590-18596, 2019 09 10.
Artigo em Inglês | MEDLINE | ID: mdl-31451630

RESUMO

Biocompatible gold nanoparticles designed to absorb light at wavelengths of high tissue transparency have been of particular interest for biomedical applications. The ability of such nanoparticles to convert absorbed near-infrared light to heat and induce highly localized hyperthermia has been shown to be highly effective for photothermal cancer therapy, resulting in cell death and tumor remission in a multitude of preclinical animal models. Here we report the initial results of a clinical trial in which laser-excited gold-silica nanoshells (GSNs) were used in combination with magnetic resonance-ultrasound fusion imaging to focally ablate low-intermediate-grade tumors within the prostate. The overall goal is to provide highly localized regional control of prostate cancer that also results in greatly reduced patient morbidity and improved functional outcomes. This pilot device study reports feasibility and safety data from 16 cases of patients diagnosed with low- or intermediate-risk localized prostate cancer. After GSN infusion and high-precision laser ablation, patients underwent multiparametric MRI of the prostate at 48 to 72 h, followed by postprocedure mpMRI/ultrasound targeted fusion biopsies at 3 and 12 mo, as well as a standard 12-core systematic biopsy at 12 mo. GSN-mediated focal laser ablation was successfully achieved in 94% (15/16) of patients, with no significant difference in International Prostate Symptom Score or Sexual Health Inventory for Men observed after treatment. This treatment protocol appears to be feasible and safe in men with low- or intermediate-risk localized prostate cancer without serious complications or deleterious changes in genitourinary function.


Assuntos
Terapia a Laser/instrumentação , Nanopartículas Metálicas/administração & dosagem , Neoplasias da Próstata/cirurgia , Idoso , Estudos de Viabilidade , Seguimentos , Ouro/administração & dosagem , Ouro/efeitos da radiação , Humanos , Biópsia Guiada por Imagem/métodos , Raios Infravermelhos , Terapia a Laser/efeitos adversos , Terapia a Laser/métodos , Imagem por Ressonância Magnética Intervencionista/efeitos adversos , Imagem por Ressonância Magnética Intervencionista/instrumentação , Imagem por Ressonância Magnética Intervencionista/métodos , Masculino , Nanopartículas Metálicas/efeitos da radiação , Pessoa de Meia-Idade , Imagem Multimodal/efeitos adversos , Imagem Multimodal/instrumentação , Imagem Multimodal/métodos , Nanoconchas/administração & dosagem , Nanoconchas/efeitos da radiação , Oligopeptídeos , Órgãos em Risco/efeitos da radiação , Ereção Peniana/efeitos da radiação , Projetos Piloto , Próstata/diagnóstico por imagem , Próstata/patologia , Próstata/cirurgia , Neoplasias da Próstata/diagnóstico por imagem , Neoplasias da Próstata/patologia , Saúde Sexual , Ultrassonografia de Intervenção/efeitos adversos , Ultrassonografia de Intervenção/instrumentação , Ultrassonografia de Intervenção/métodos , Sistema Urogenital/efeitos da radiação
10.
World J Urol ; 39(5): 1319-1329, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33057888

RESUMO

PURPOSE: Patients harboring high-grade non-muscle-invasive bladder cancer (NMIBC) experience high rates of both recurrence and progression. Currently, few treatment options besides cystectomy exist for this at-risk population, especially those with BCG-unresponsive disease. The purpose of this review is to present the current status and describe future directions of immunotherapy in NMIBC. METHODS: The PubMed and Google Scholar databases were searched for articles pertaining to immunotherapy in NMIBC. Relevant planned and ongoing clinical trials were identified using www.ClinicalTrials.gov . Published randomized control trials, reviews, other retrospective and prospective studies deemed relevant were used in this review paper. RESULTS: Novel immunotherapies used in the treatment of high-grade NMIBC and BCG-unresponsive disease allow patients more options and have the potential to reduce the need for radical cystectomy. Currently, several options target the programmed death 1 (PD-1)/programmed death ligand 1 (PD-L1) axis as this mechanism of immunotherapy has been shown to be effective in several cancers, including bladder, melanoma, and lung cancers. In addition, other immunotherapy options for the treatment of NMIBC include viral gene therapies, interleukin-15 superagonists, small molecule inhibitors of indoleamine (2,3)-dioxygenase 1, and vaccines. CONCLUSIONS: The current landscape of immunotherapy in bladder cancer is rapidly evolving, with much literature pertaining to muscle-invasive and metastatic disease. However, the implementation of these treatment options in high-grade NMIBC may allow patients to avoid life-altering surgery. Reliable biomarkers for response are needed to further select patients who may benefit from such therapies.


Assuntos
Imunoterapia/tendências , Neoplasias da Bexiga Urinária/terapia , Previsões , Humanos , Invasividade Neoplásica , Neoplasias da Bexiga Urinária/patologia
11.
BJU Int ; 125(2): 270-275, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31310696

RESUMO

OBJECTIVE: To describe the natural history of untreated muscle-invasive bladder cancer (MIBC) and compare the oncological outcomes of treated and untreated patients. PATIENTS AND METHODS: We utilised a database encompassing all patients with newly diagnosed bladder cancer in Stockholm, Sweden between 1995 and 1996. The median follow-up for survivors was 14.4 years. Overall, 538 patients were diagnosed with bladder cancer of whom 126 had clinically localised MIBC. Patients were divided into two groups: those who received radical cystectomy or radiation therapy, and those who did not receive any form of treatment. Multivariable Cox or competing-risks regressions were adopted to predict metastasis, overall survival (OS), and cancer-specific mortality (CSM), when appropriate. Analyses were adjusted for age at diagnosis, sex, tumour stage, clinical N stage, and treatment. RESULTS: In all, 64 (51%) patients did not receive any definitive local treatment. In the untreated group, the median (interquartile range) age at diagnosis was 79 (63-83) vs 69 (63-74) years in the treated group (P < 0.001). Overall, 109 patients died during follow-up. At 6 months after diagnosis, 38% of the untreated patients had developed metastatic disease and 41% had CSM. The 5-year OS rate for untreated and treated patients was 5% (95% confidence interval [CI] 1, 12%) vs 48% (95% CI 36, 60%), respectively. Patients not receiving any treatment had a 5-year cumulative incidence of CSM of 86% (95% CI 75, 94%) vs 48% (95% CI 36, 60%) for treated patients. Untreated patients had a higher risk of progression to metastatic disease (hazard ratio [HR] 2.40, 95% CI 1.28, 4.51; P = 0.006), death from any cause (HR 2.63, 95% CI 1.65, 4.19; P < 0.001) and CSM (subdistribution HR 2.02, 95% CI 1.24, 3.30; P = 0.004). CONCLUSIONS: Untreated patients with MIBC are at very high risk of near-term CSM. These findings may help balance the risks vs benefits of integrating curative intent therapy particularly in older patients with MIBC.


Assuntos
Cistectomia/mortalidade , Invasividade Neoplásica/fisiopatologia , Recidiva Local de Neoplasia/fisiopatologia , Radioterapia/mortalidade , Neoplasias da Bexiga Urinária/fisiopatologia , Idoso , Bases de Dados Factuais , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/mortalidade , Estadiamento de Neoplasias/mortalidade , Modelos de Riscos Proporcionais , Estudos Prospectivos , Medição de Risco , Taxa de Sobrevida , Suécia/epidemiologia , Neoplasias da Bexiga Urinária/mortalidade , Neoplasias da Bexiga Urinária/terapia
12.
BJU Int ; 125(3): 442-448, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31758657

RESUMO

OBJECTIVE: To analyse whether selective arterial clamping (SAC) and off-clamp (OC) techniques during robot-assisted partial nephrectomy (RPN) are associated with a renal functional benefit in patients with Stage 3-5 chronic kidney disease (CKD). PATIENTS AND METHODS: The change in estimated glomerular filtration rate (eGFR) over time was compared between 462 patients with baseline CKD 3-5 that underwent RPN with main arterial clamping (MAC) (n = 375, 81.2%), SAC (n = 48, 10.4%) or OC (n = 39, 8.4%) using a multivariable linear mixed-effects model. All follow-up eGFRs, including baseline and follow-up between 3 and 24 months, were included in the model for analysis. The median follow-up was 12.0 months (interquartile range 6.7-16.5; range 3.0-24.0 months). RESULTS: In the multivariable linear mixed-effects model adjusting for characteristics including tumour size and the R.E.N.A.L. (Radius; Exophytic/Endophytic; Nearness; Anterior/Posterior; Location) Nephrometry Score, the change in eGFR over time was not significantly different between SAC and MAC RPN (ß = -1.20, 95% confidence interval [CI] -5.45, 3.06; P = 0.582) and OC and MAC RPN (ß = -1.57, 95% CI -5.21, 2.08; P = 0.400). Only 20 (15 MAC, two SAC, three OC) patients overall had progression of their CKD stage at last follow-up. The mean ischaemia time was 17 min for MAC and 15 min for SAC. There was no benefit to SAC or OC in terms of blood loss, perioperative complications, length of stay, or surgical margins. CONCLUSION: SAC and OC techniques during RPN were not associated with benefit in preservation of eGFR in patients with baseline CKD.


Assuntos
Nefrectomia/métodos , Insuficiência Renal Crônica/cirurgia , Idoso , Constrição , Feminino , Humanos , Isquemia/prevenção & controle , Rim/irrigação sanguínea , Falência Renal Crônica/cirurgia , Masculino , Pessoa de Meia-Idade , Artéria Renal , Índice de Gravidade de Doença
13.
BJU Int ; 125(4): 531-540, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31762182

RESUMO

OBJECTIVE: To evaluate the ability to detect clinically significant prostate cancer (PCa) using a novel electromagnetically (EM) tracked transperineal magnetic resonance imaging (MRI)/ultrasonography (US) fusion-guided targeted biopsy (transperineal TBx) platform and the impact of inter-reader variability on cancer detection. MATERIALS AND METHODS: A total of 176 patients with suspicious lesions detected on multiparametric MRI (mpMRI) underwent a systematic modified Barzel template biopsy (12-core) transperineal biopsy (transperineal SBx) and transperineal TBx with EM tracking (UroNav; Philips Healthcare, Best, the Netherlands) in the same setting. Cancer detection rates (CDRs) were stratified by Prostate Imaging Reporting and Data System (PI-RADS) v2 scores and compared with Fisher's exact test. Area under the curve (AUC) was calculated for prostate-specific antigen (PSA), PSA density (PSAD), PI-RADS score, and subgroup analysis of individual readers' PI-RADS scores with respect to overall CDR and clinically significant CDR. RESULTS: The overall CDR was 76.7% (135/176), of which 76.3% (103/135) was clinically significant PCa. Among the 135 patients with PCa, transperineal TBx detected 90.4% of cases (122/135), either alone or in combination with transperineal SBx. The remaining 9.6% of cases (13/135) missed by transperineal TBx were diagnosed by transperineal SBx alone, of which three were clinically significant. Conversely, transperineal SBx missed 14% of cases (19/135), 14 of which were clinically significant PCa. Sensitivities for transperineal TBx and transperineal SBx were 90.4% and 85.9%, respectively. On a per-lesion basis, PI-RADS score (AUC 0.74) outperformed both PSA (AUC 0.59) and PSAD (AUC 0.63) in discriminating clinically significant from non-clinically significant PCa on transperineal TBx. Although not formally statistically tested, AUCs amongst different mpMRI readers appeared to display considerable variability. There were no adverse events, including sepsis. CONCLUSIONS: Electromagnetically tracked transperineal TBx of MRI-visible lesions enhanced the ability of transperineal SBx to detect PCa, with greater sensitivity for clinically significant disease. These findings suggest transperineal TBx is a safe, alternative fusion platform for patients with a suspicious lesion on prostate MRI. The assessment of inter-reader variability, in conjunction with prediction of clinically significant PCa and CDR, is an important first step for quality control in implementing an MRI-based screening programme.


Assuntos
Biópsia Guiada por Imagem/métodos , Imageamento por Ressonância Magnética , Neoplasias da Próstata/diagnóstico por imagem , Neoplasias da Próstata/patologia , Ultrassonografia de Intervenção , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Humanos , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Períneo
14.
Cell Mol Biol (Noisy-le-grand) ; 66(6): 148-156, 2020 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-33040802

RESUMO

Investigating the infectivity of body fluid can be useful for preventative measures in the community and ensuring safety in the operating rooms and on the laboratory practices. We performed a literature search of clinical trials, cohorts, and case series using PubMed/MEDLINE, Google Scholar, and Cochrane library, and downloadable database of CDC. We excluded case reports and searched all-language articles for review and repeated until the final drafting. The search protocol was registered in the PROSPERO database. Thirty studies with urinary sampling for viral shedding were included. A total number of 1,271 patients were enrolled initially, among which 569 patients had undergone urinary testing. Nine studies observed urinary viral shedding in urine from 41 patients. The total incidence of urinary SARS-CoV-2 shedding was 8%, compared to 21.3% and 39.5 % for blood and stool, respectively. The summarized risk ratio (RR) estimates for urine positive rates compared to the pharyngeal rate was 0.08. The pertaining RR urine compared to blood and stool positive rates were 0.20 and 0.33, respectively. Our review concludes that not only the SARS-CoV-2 can be excreted in the urine in eight percent of patients but also its incidence may have associations with the severity of the systemic disease, ICU admission, and fatality rates. Moreover, the findings in our review suggest that a larger population size may reveal more positive urinary cases possibly by minimizing biases.


Assuntos
Betacoronavirus/genética , Técnicas de Laboratório Clínico , Infecções por Coronavirus/epidemiologia , Fezes/virologia , Pneumonia Viral/epidemiologia , Urina/virologia , Viremia/diagnóstico , Eliminação de Partículas Virais , Adolescente , Adulto , Idoso , COVID-19 , Teste para COVID-19 , Vacinas contra COVID-19 , Criança , Pré-Escolar , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/mortalidade , Infecções por Coronavirus/virologia , Feminino , Humanos , Incidência , Lactente , Unidades de Terapia Intensiva , Masculino , Pessoa de Meia-Idade , Pandemias , Admissão do Paciente , Pneumonia Viral/mortalidade , Pneumonia Viral/virologia , RNA Viral/genética , Reação em Cadeia da Polimerase em Tempo Real , SARS-CoV-2 , Índice de Gravidade de Doença , Adulto Jovem
15.
J Cancer Educ ; 35(4): 808-818, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-31175566

RESUMO

This study aims to describe the acceptability and feasibility of an educational and training experiential intervention (ETEI) we developed to enhance muscle invasive bladder cancer (MIBC) patients with treatment decision-making and post-operative self-care. Twenty-five patients were randomized to a control group (N = 8) or ETEI group (N = 17). ETEI group participated in a nurse-led session on MIBC education. The control group received diet and nutrition education. Study questionnaires were completed at baseline and at 1-month post-intervention. Our results showed acceptable recruitment (58%) and retention rates (68%). The ETEI group reported increased knowledge (82% vs. 50%), improved decisional support (64% vs. 50%), improved communication (73% vs. 50%), and increased confidence in treatment decisions (73% vs. 50%) compared to the control group. Patients in the control group reported improved diet (50% v. 27%) as well as maintaining a healthy lifestyle (67% vs. 45%) compared to the ETEI group. Patients in the ETEI group reported a significant decrease in cancer worries and increases in self-efficacy beliefs over time compared to the control group. The ETEI was feasible, acceptable, and showed a potential for inducing desired changes in cancer worries and efficacy beliefs.


Assuntos
Tomada de Decisões , Neoplasias Musculares/terapia , Educação de Pacientes como Assunto/métodos , Participação do Paciente/estatística & dados numéricos , Autocuidado/métodos , Autocuidado/psicologia , Neoplasias da Bexiga Urinária/terapia , Idoso , Intervenção Educacional Precoce , Estudos de Viabilidade , Feminino , Humanos , Masculino , Neoplasias Musculares/psicologia , Prognóstico , Autoeficácia , Inquéritos e Questionários , Neoplasias da Bexiga Urinária/psicologia
16.
Cancer ; 125(18): 3155-3163, 2019 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-31150110

RESUMO

BACKGROUND: Achieving a pathologic complete response (pCR) with neoadjuvant chemotherapy (NAC) in patients with muscle-invasive bladder cancer (MIBC) has been associated with improved overall survival (OS). This study was aimed at evaluating the impact of pathologic downstaging (pDS; ie, a pT stage at least 1 stage lower than the pre-NAC cT stage) on the OS of patients with MIBC treated with NAC. METHODS: The Retrospective International Study of Cancers of the Urothelial Tract (RISC) and the National Cancer Database (NCDB) were queried for cT2-4N0M0 patients treated with NAC. A multivariable Cox model including either pDS or pCR was generated. A nested model was built to evaluate the added value of pDS (excluding patients achieving a pCR) to a model including pCR alone. C indices were computed to assess discrimination. NCDB was used for validation. The treatment effect of NAC versus cystectomy alone in achieving pDS was estimated through an inverse probability-weighted regression adjustment. RESULTS: Overall, 189 and 2010 patients from the RISC and NCDB cohorts, respectively, were included; pDS and pCR were achieved by 33% and 35% and by 20% and 15% in RISC and NCDB, respectively. In both data sets, pDS and pCR were associated with better OS and C indices. Adding pDS excluding pCR to the model with pCR fit the data better (likelihood ratio, P = .019 for RISC and P < .001 for NCDB), and it yielded better discrimination (incremental C index, 4.2 for RISC and 1.6 for NCDB). The treatment effect of NAC in achieving pDS was 2.07-fold (P < .001) in comparison with cystectomy alone. CONCLUSIONS: A decrease of at least 1 stage from the cT stage to the pT stage is associated with improved OS in patients with MIBC treated with NAC.


Assuntos
Antineoplásicos/uso terapêutico , Carcinoma de Células de Transição/tratamento farmacológico , Cisplatino/uso terapêutico , Terapia Neoadjuvante , Neoplasias da Bexiga Urinária/tratamento farmacológico , Idoso , Carcinoma de Células de Transição/patologia , Estudos de Coortes , Cistectomia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Músculo Liso/patologia , Invasividade Neoplásica , Estadiamento de Neoplasias , Prognóstico , Modelos de Riscos Proporcionais , Taxa de Sobrevida , Neoplasias da Bexiga Urinária/patologia
17.
BJU Int ; 124(4): 665-671, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30801918

RESUMO

OBJECTIVES: To evaluate whether pathological downstaging (pDS) was more informative in predicting overall survival (OS) than pathological complete response (pCR) in patients treated with neoadjuvant chemotherapy (NAC) for upper tract urothelial carcinoma (UTUC). PATIENTS AND METHODS: The National Cancer Database was queried for patients with high-grade cN0M0 disease who had received NAC. pDS was defined as a decrease of at least one stage from cT to pT stage along with pN0, including pCR. A multivariable Cox model predicting OS was generated by fitting alternatively either pDS or pCR, and adjusted for potential confounders. The discrimination of the Cox models for predicting OS was evaluated using Harrell's C-index. The analyses were repeated in patients diagnosed as having cT2-4N0M0 disease. RESULTS: Among 264 patients meeting the inclusion criteria, 72 (27%) and 39 (15%) achieved pDS and pCR, respectively. On multivariable analysis, both pDS (hazard ratio [HR] 0.24, 95% confidence interval [CI] 0.13, 0.45; P < 0.001) and pCR (HR 0.37, 95% CI 0.18, 0.79; P = 0.01) were associated with OS. The model including pDS achieved better discrimination with respect to the model including pCR: C-index 76.4 vs 72.7, respectively. In the 128 patients diagnosed with cT2-4 disease, both pDS (HR 0.19, 95% CI 0.09, 0.40; P < 0.001) and pCR (HR 0.31, 95% CI 0.11, 0.85; P = 0.023) were confirmed as predictors of OS. The model including pDS was confirmed to discriminate better than the model including pCR: C-index 75 vs 68.9, respectively. CONCLUSION: The study showed that pDS after NAC for UTUC was more informative than pCR when predicting OS. These findings, although requiring prospective validation, can aid in the design of clinical trials seeking to refine the use of chemotherapy and other systemic therapies in this setting.

18.
BJU Int ; 124(1): 155-162, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-30825357

RESUMO

OBJECTIVE: To investigate the genomic features of tertiary pattern 5 (TP5) on radical prostatectomy specimens in an effort to explain the poor clinical outcomes associated with this disease subtype. PATIENTS AND METHODS: Data from 159 men with Gleason Grade Group (GGG) 3 or 4 were considered. All patients had Decipher diagnostic testing with transcript profiles and single-channel array normalisation (SCAN)-normalised expression of coding genes. The relationship between Decipher and TP5 was investigated by linear and binary logistic regressions. A differential transcriptomic analysis between patients with and without TP5 was performed. The prognostic role of these genes on progression-free survival (PFS) and overall survival (OS) was evaluated using The Cancer Genome Atlas. RESULTS: In all, 52/159 (33%) patients had GGG 3-4 with TP5 disease. TP5 was associated with a higher Decipher score (ß 0.07, 95% confidence interval [CI] 0.02-0.13; P = 0.04) and higher likelihood of falling within the intermediate- or high-risk categories (odds ratio 3.34, 95% CI 1.34-8.35; P = 0.01). Analysis of microarray data revealed an 18-gene signature that was differentially expressed in patients with TP5; 13 genes were over- and five under-expressed in the TP5 cohort. The overexpression of cyclin dependent kinase inhibitor 2B (CDKN2B), polo-like kinase 1 (PLK1), or cell division cycle 20 (CDC20) was associated with worse PFS. The group harbouring overexpression of at least one gene had a 5-year PFS rate of 50% vs 74% in the group without overexpression (P < 0.001). CONCLUSIONS: Our studies have elucidated unique genomic features of TP5, whilst confirming previous clinical findings that patients harbouring TP5 tend to have worse prognosis. This is the first RNA-based study to investigate the molecular diversity of TP5 and the first correlating CDKN2B to poorer prognosis in patients with prostate cancer.


Assuntos
Gradação de Tumores , Neoplasias da Próstata/genética , Neoplasias da Próstata/patologia , Idoso , Estudos de Coortes , Perfilação da Expressão Gênica , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Valor Preditivo dos Testes , Prostatectomia , Neoplasias da Próstata/mortalidade , Taxa de Sobrevida , Resultado do Tratamento
19.
Curr Opin Urol ; 29(1): 10-13, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30489328

RESUMO

PURPOSE OF REVIEW: Over the past decades, several efforts have been made for integrating multiparametric MRI (mpMRI) in the diagnostic pathways of prostate cancer. Despite this fact, the role of mpMRI in planning surgery has been explored in a relatively small number of studies. The aim of this review is to summarize the current evidence with respect to imaging and specifically mpMRI in planning robot-assisted radical prostatectomy. RECENT FINDINGS: Novel tools integrating mpMRI and clinical data have been described for planning surgery. mpMRI results in adds value to models based on clinical parameters only. Three-dimensional printed models of the prostate and prostatic tumor may help in planning surgery, however only few studies with limited number of patients are currently available in this regard. Finally, the integration of mpMRI renderings in the robotic console may help in surgical planning and might increase the diffusion of imaging for planning (and performing) surgery. SUMMARY: Imaging in planning surgery is still underutilized. Thus, further studies are needed to increase the use of mpMRI in planning surgery and also in performing surgery.


Assuntos
Prostatectomia , Neoplasias da Próstata , Procedimentos Cirúrgicos Robóticos , Humanos , Imageamento por Ressonância Magnética , Masculino , Prostatectomia/métodos , Neoplasias da Próstata/cirurgia , Procedimentos Cirúrgicos Robóticos/métodos
20.
J Urol ; 200(5): 996-1004, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29879397

RESUMO

PURPOSE: We investigated the characteristics and outcomes of patients with muscle invasive bladder cancer treated with transurethral resection plus chemotherapy alone in a large observational cohort reflecting the continuum of practice settings in the United States. MATERIALS AND METHODS: In the National Cancer Database from 2004 to 2015 we identified 1,538 patients treated with transurethral resection plus multi-agent chemotherapy as definitive treatment of cT2-T4aN0M0 urothelial carcinoma of the bladder. For comparison purposes we included in study 17,866 patients treated with radical cystectomy with or without perioperative chemotherapy. Baseline characteristics were compared between the 2 groups by multivariable logistic regression. Treatment outcomes were assessed using Kaplan-Meier analysis and a Cox regression model. RESULTS: On multivariate analysis several variables, including patient demography (older age, African American race, prior malignancy and lack of insurance), tumor characteristics (higher cT stage) and facility type (nonacademic facilities and lower radical cystectomy volume) were associated with a higher probability of transurethral resection plus chemotherapy for muscle invasive bladder cancer compared to the standard of care. Two and 5-year survival rates in all patients treated with transurethral resection plus chemotherapy were 49.0% and 32.9%, and in patients with cT2 disease the rates were 52.6% and 36.2%, respectively. CONCLUSIONS: This large population level cohort of unselected patients shows that long-term survival can be achieved in a subset of patients treated with transurethral resection plus chemotherapy alone for muscle invasive bladder cancer. However, the best candidates for this approach remain to be defined. Ongoing clinical trials are now being launched to evaluate the ability of biomarkers to accurately select patients who could be treated with this bladder sparing strategy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células de Transição/patologia , Carcinoma de Células de Transição/terapia , Cistectomia/métodos , Neoplasias da Bexiga Urinária/patologia , Neoplasias da Bexiga Urinária/terapia , Idoso , Carcinoma de Células de Transição/mortalidade , Quimioterapia Adjuvante , Estudos de Coortes , Bases de Dados Factuais , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Prognóstico , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Medição de Risco , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento , Neoplasias da Bexiga Urinária/mortalidade
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