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1.
BJU Int ; 2024 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-38627025

RESUMO

OBJECTIVE: To evaluate the impact of adjuvant therapy on oncological outcomes in patients with intermediate-risk non-muscle-invasive bladder cancer (NMIBC), as due to the poorly-defined and overlapping diagnostic criteria optimal decision-making remains challenging in these patients. PATIENTS AND METHODS: In this multicentre study, patients treated with transurethral resection of bladder tumour for Ta disease were retrospectively analysed. All patients with low- or high-risk NMIBC were excluded from the analysis. Associations between adjuvant therapy administration with recurrence-free survival (RFS) and progression-free survival (PFS) rates were assessed in Cox regression models. RESULTS: A total of 2206 patients with intermediate-risk NMIBC were included in the analysis. Among them, 1427 patients underwent adjuvant therapy, such as bacille Calmette-Guérin (n = 168), or chemotherapeutic agents, such as mitomycin C or epirubicin (n = 1259), in different regimens up to 1 year. The median (interquartile range) follow-up was 73.3 (38.4-106.9) months. The RFS at 1 and 5 years in patients treated with adjuvant therapy and those without were 72.6% vs 69.5% and 50.8% vs 41.3%, respectively. Adjuvant therapy was associated with better RFS (hazard ratio [HR] 0.79, 95% confidence interval [CI] 0.70-0.89, P < 0.001), but not with PFS (P = 0.09). In the subgroup of patients aged ≤70 years with primary, single Ta Grade 2 <3 cm tumours (n = 328), adjuvant therapy was not associated with RFS (HR 0.71, 95% CI 0.50-1.02, P = 0.06). While in the subgroup of patients with at least one risk factor including patient age >70 years, tumour multiplicity, recurrent tumour and tumour size ≥3 cm (n = 1878), adjuvant intravesical therapy was associated with improved RFS (HR 0.78, 95% CI 0.68-0.88, P < 0.001). CONCLUSION: In our study, patients with intermediate-risk NMIBC benefit from adjuvant intravesical therapy in terms of RFS. However, in patients without risk factors, adjuvant intravesical therapy did not result in a clear reduction in the recurrence rate.

2.
Int J Clin Oncol ; 2024 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-38582807

RESUMO

BACKGROUND: Triplet therapy, androgen receptor signaling inhibitors (ARSIs) plus docetaxel plus androgen-deprivation therapy (ADT), is a novel guideline-recommended treatment for metastatic hormone-sensitive prostate cancer (mHSPC). However, the optimal selection of the patient most likely to benefit from triplet therapy remains unclear. METHODS: We performed a systematic review, meta-analysis, and network meta-analysis to assess the oncologic benefit of triplet therapy in mHSPC patients stratified by disease volume and compare them with doublet treatment regimens. Three databases and meeting abstracts were queried in March 2023 for randomized controlled trials (RCTs) evaluating patients treated with systemic therapy for mHSPC stratified by disease volume. Primary interests of measure were overall survival (OS). We followed the PRISMA guideline and AMSTAR2 checklist. RESULTS: Overall, eight RCTs were included for meta-analyses and network meta-analyses (NMAs). Triplet therapy outperformed docetaxel plus ADT in terms of OS in both patients with high-(pooled HR: 0.73, 95%CI 0.64-0.84) and low-volume mHSPC (pooled HR: 0.71, 95%CI 0.52-0.97). There was no statistically significant difference between patients with low- vs. high-volume in terms of OS benefit from adding ARSI to docetaxel plus ADT (p = 0.9). Analysis of treatment rankings showed that darolutamide plus docetaxel plus ADT (90%) had the highest likelihood of improved OS in patients with high-volume disease, while enzalutamide plus ADT (84%) had the highest in with low-volume disease. CONCLUSIONS: Triplet therapy improves OS in mHSPC patients compared to docetaxel-based doublet therapy, irrespective of disease volume. However, based on treatment ranking, triplet therapy should preferably be considered for patients with high-volume mHSPC while those with low-volume are likely to be adequately treated with ARSI + ADT.

3.
Urol Oncol ; 42(6): 176.e1-176.e7, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38508941

RESUMO

PURPOSE: To evaluate the value of examination under anesthesia (EUA) in the assessment of bladder resectability during cystectomy. MATERIALS AND METHODS: This prospective study included consecutive patients undergoing cystectomy for bladder cancer at a single center between June 2017 and October 2020. EUA was conducted before cystectomy by two urologists who assessed the bladder for limited mobility. One examiner was blinded to the imaging results. Soft tissue surgical margin status in the pathological evaluation of a cystectomy specimen served as a measure of resectability. We used multivariable logistic regression models to assess whether EUA performed by blinded or non-blinded examiners is associated with soft tissue positive surgical margins (PSMs) and to calculate the fraction of new information added by such an examination in addition to selected clinical variables. RESULTS: Among the 134 patients analyzed, limited bladder mobility was indicated by the blinded and non-blinded examiners in 23 (17.2%) and 21 (15.7%) cases, respectively. PSMs were identified in 22 (16.4%) patients, more often in patients with limited bladder mobility as assessed by the blinded (odds ratio [OR] 6.7; 95% confidence interval [CI], 1.9-24.2) and non-blinded examiners (OR 12.9; 95% CI, 2.9-57.5). The fraction of new information added by the blinded and non-blinded examiners was 48.6% and 57.7%, respectively. The enrichment of patients who underwent pure laparoscopic cystectomy (n = 102; 76%) and the inclusion of patients for emergent surgery may limit the generalizability of our findings. CONCLUSIONS: The identification of limited bladder mobility during preoperative EUA yielded prognostic information on surgical margin status. Our findings suggest that EUA has the potential to provide valuable insights in the assessment of bladder resectability. However, further research in a larger cohort of patients is warranted to validate and expand on these findings.


Assuntos
Cistectomia , Laparoscopia , Palpação , Neoplasias da Bexiga Urinária , Humanos , Cistectomia/métodos , Neoplasias da Bexiga Urinária/cirurgia , Neoplasias da Bexiga Urinária/patologia , Estudos Prospectivos , Feminino , Masculino , Idoso , Laparoscopia/métodos , Pessoa de Meia-Idade
4.
PLoS One ; 19(1): e0296449, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38241234

RESUMO

INTRODUCTION: Sexual activity of men has been evaluated at the population-level in different regions of the world. However, reliable data are lacking for Eastern Europe. Therefore, the aim of this study was to analyze the frequency of sexual activity and the number of sexual partners in a large representative cohort of Polish men. METHODS: We performed a cross-sectional investigation with computer-assisted web interviews. Participants were stratified by age (≥18 years) and place of residence. The most recent population census was used to produce a population-representative sample of respondents. Men's sexual activity was then correlated with multiple variables. RESULTS: We enrolled 3001 men, representative for age and place of residence, including adequate proportions of respondents from urban and rural areas. Most Polish men were sexually active, predominantly having had sex at least weekly with one partner. Almost 18% of respondents declined sexual intercourse and/or sexual partner in the prior year. The highest sexual activity was observed for men 35-44-years-old (for sex frequency) and 18-24-years-old (for partner number), living in medium-sized cities, employed, and married (for sex frequency) or divorced (for partner number). Erectile dysfunction negatively affected the frequency of sexual activity and lowered the number of sexual partners, although premature ejaculation did not have any effect. Frequency of sexual activity and number of sexual partners correlated well with psychological distress, quality of sex life, and overall life quality. Whereas lifestyle habits including smoking and alcohol intake decreased the likelihood of sexual activity, all analyzed comorbidities did not affect sex life. CONCLUSIONS: This study of men's sexual activity was the first population-representative and nationwide investigation performed in Poland. Most Polish men were sexually active and sexual activity correlated with multiple variables including sociodemographic factors, erectile functioning, mental distress, overall and sex-specific quality of life, and lifestyle habits.


Assuntos
Qualidade de Vida , Comportamento Sexual , Masculino , Feminino , Humanos , Adolescente , Adulto , Polônia/epidemiologia , Estudos Transversais , Parceiros Sexuais , Inquéritos e Questionários
5.
Cent European J Urol ; 76(3): 190-192, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38045781

RESUMO

We describe a case of a 74-year-old patient with recurrent fever of up-to 38.5°C, nocturnal sweating, weight loss of 4 kg, non-characteristic pain, and elevation of liver function tests (LFTs), who was diagnosed with Stauffer's syndrome. The patient successfully underwent laparoscopic heminephrectomy. The histology was clear-cell carcinoma of the right kidney (cT1a). The abnormalities in laboratory tests, such as Erythrocyte Sedimentation Rate, C-reactive protein, LFTs, α2-globulin, and most clinical symptoms abated 2 weeks post-surgery. We hypothesize that elevated LFTs in renal cell carcinoma patients could help deciding in favour of surgery in cases where the initial decision would be watchful waiting.

6.
Biochim Biophys Acta Mol Basis Dis ; 1869(8): 166840, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37558006

RESUMO

The process of metastasis is complex and often impossible to be recognized in conventional clinical diagnosis. Lymph node metastasis (LNM) of bladder carcinoma (BC) is often associated with muscle-invasive tumors. To prevent and recognize LNM, the standard treatment includes radical cystectomy with lymph node dissection and histological examination. Here, we propose infrared (IR) microscopy as a tool for the prediction of LNM. For this purpose, IR images of bladder biopsies from patients with diagnosed non-metastatic early (E BC) and advanced (A BC), as well as metastatic advanced (M BC) bladder cancer were first collected. Furthermore, this dataset was complemented with images of the secondary tumors from the lymph nodes (M LN) of the M BC patients. Unsupervised clustering was used to extract tissue structures from IR images to create a data set comprising 382 IR spectra of non-metastatic bladder tumors and 241 metastatic ones. Based on that, we next established discrimination models using PLS-DA with repeated random sampling double cross-validation, and permutation test to perform the classification. The accuracy of BC metastasis prediction from IR bladder biopsies was 83 % and 78 % for early and advanced BC, respectively, herein demonstrating a proof-of-concept IR detection of BC metastasis. The analysis of spectral profiles additionally showed molecular composition similarity between metastatic bladder and lymph node tumors. We also determined spectral biomarkers of LNM that are associated with sugar metabolism, remodeling of extracellular matrix, and morphological features of cancer cells. Our approach can improve clinical decision-making in urological oncology.


Assuntos
Carcinoma de Células de Transição , Neoplasias da Bexiga Urinária , Humanos , Bexiga Urinária/metabolismo , Carcinoma de Células de Transição/metabolismo , Carcinoma de Células de Transição/patologia , Carcinoma de Células de Transição/cirurgia , Metástase Linfática/patologia , Análise de Fourier , Neoplasias da Bexiga Urinária/patologia
7.
World J Urol ; 41(7): 1861-1868, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37294372

RESUMO

PURPOSE: To evaluate the prognostic value and the clinical impact of preoperative serum cholinesterase (ChoE) levels on decision-making in patients treated with radical nephroureterectomy (RNU) for clinically non-metastatic upper tract urothelial cancer (UTUC). METHODS: A retrospective review of an established multi-institutional UTUC database was performed. We evaluated preoperative ChoE as a continuous and dichotomized variable using a visual assessment of the functional form of the association of ChoE with cancer-specific survival (CSS). We used univariable and multivariable Cox regression models to establish its association with recurrence-free survival (RFS), CSS, and overall survival (OS). Discrimination was evaluated using Harrell's concordance index. Decision curve analysis (DCA) was used to assess the impact on clinical decision-making of preoperative ChoE. RESULTS: A total of 748 patients were available for analysis. Within a median follow-up of 34 months (IQR 15-64), 191 patients experienced disease recurrence, and 257 died, with 165 dying of UTUC. The optimal ChoE cutoff identified was 5.8 U/l. ChoE as continuous variable was significantly associated with RFS (p < 0.001), OS (p < 0.001), and CSS (p < 0.001) on univariable and multivariable analyses. The concordance index improved by 8%, 4.4%, and 7% for RFS, OS, and CSS, respectively. On DCA, including ChoE did not improve the net benefit of standard prognostic models. CONCLUSION: Despite its independent association with RFS, OS, and CSS, preoperative serum ChoE has no impact on clinical decision-making. In future studies, ChoE should be investigated as part of the tumor microenvironment and assessed as part of predictive and prognostic models, specifically in the setting of immune checkpoint-inhibitor therapy.


Assuntos
Carcinoma de Células de Transição , Sistema Urinário , Neoplasias Urológicas , Humanos , Nefroureterectomia , Colinesterases , Recidiva Local de Neoplasia/cirurgia , Neoplasias Urológicas/patologia , Prognóstico , Carcinoma de Células de Transição/patologia , Estudos Retrospectivos , Microambiente Tumoral
8.
Urol Oncol ; 41(9): 390.e27-390.e33, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37147232

RESUMO

OBJECTIVES: To prospectively assess the concordance of examination under anesthesia (EUA)-based clinical T stage with pathological T stage and diagnostic accuracy of EUA in patients with bladder cancer undergoing cystectomy. METHODS: Consecutive patients with bladder cancer undergoing cystectomy between June 2017 and October 2020 in a single academic center were included in a prospective study. Two urologists performed EUA (one blinded to imaging) before patients underwent cystectomy. We assessed the concordance between clinical T stage in bimanual palpation (index test) and pathological T stage in cystectomy specimens (reference test). Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated with 95% confidence intervals (CIs) to detect or exclude locally advanced bladder cancer (pT3b-T4b) in EUA. RESULTS: The data of 134 patients were analyzed. Given that stage pT3a cannot be palpated, for the nonblinded examiner, T staging in EUA was concordant with pT in 107 (79.9%) patients, 20 (14.9%) cases being understaged in EUA and 7 (5.2%) overstaged. For the blinded examiner, staging was correct in 106 (79.1%) patients, 20 (14.9%) cases being understaged and 8 (6%) overstaged. For the nonblinded examiner, sensitivity, specificity, PPV, and NPV of EUA were 55.9% (95% CI 39.2%-72.6%), 93% (88%-98%), 73.1% (56%-90.1%), and 86.1% (79.6%-92.6%), respectively; for the blinded examiner, they were 52.9% (36.2%-69.7%), 93% (88%-98%), 72% (54.4%-89.6%) and 85.3% (78.7%-92%), respectively. Awareness of imaging results did not have a major impact on EUA results. CONCLUSION: Bimanual palpation should still be used for clinical staging, given its specificity, NPV, and that it could correctly determine bladder cancer T stage in 80% of cases.


Assuntos
Cistectomia , Neoplasias da Bexiga Urinária , Humanos , Cistectomia/métodos , Estudos Prospectivos , Neoplasias da Bexiga Urinária/diagnóstico , Neoplasias da Bexiga Urinária/cirurgia , Neoplasias da Bexiga Urinária/patologia , Valor Preditivo dos Testes , Palpação , Estadiamento de Neoplasias , Estudos Retrospectivos
9.
J Clin Med ; 12(9)2023 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-37176734

RESUMO

This research aimed to assess the clinical usefulness of serum kappa (κ) and lambda (λ) free light chains (FLCs) in patients with bladder cancer (BC). One hundred samples were collected and analysed from healthy volunteers (C) and bladder cancer patients. Cancer patients were divided into two subgroups: low-grade (LG) and high-grade cancer (HG). Concentrations of FLCs, CEA, CA19-9, creatinine and urea were measured per manufacturers' guidelines. The concentrations of κ and λ FLCs and CEA were significantly higher in BC patients in comparison to the control group. Moreover, the concentrations of κ and λ FLCs and CEA were significantly higher in both low-grade as well as high-grade cancer in comparison to the controls. The levels of κ and λ FLCs differed between tumour grades, with patients presenting higher concentrations in high-grade compared to low-grade cancer. In the total study group, κFLC correlated with λFLC, the κ:λ ratio, CRP, CEA, CA19-9, creatinine and urea. There was also a correlation between λFLC and κFLC, CRP, CEA, creatinine and urea. The λFLC showed a higher ability (sensitivity and PPV) to detect bladder cancer in comparison to κFLC and CEA. In addition, λFLC had a higher ability to exclude BC (specificity and NPV) than κFLC and CEA. λFLC also showed the highest accuracy in the detection of bladder cancer. In conclusion, the revealed differences in the concentrations of both κ and λ FLCs suggest their potential participation in bladder cancer development. Increased concentrations of free light chains in bladder cancer patients and the association with the tumour grade suggest that κ and λ FLC measurements may be useful in the diagnosis and prognosis of bladder cancer. This is the first research that evaluates the concentration of FLCs in bladder cancer, so further studies are necessary to confirm their usefulness as tumour markers of this malignancy.

10.
Biomedicines ; 11(3)2023 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-36979935

RESUMO

INTRODUCTION: Urinary bladder cancer is a serious oncological problem that is the cause of many deaths worldwide. The processes of metastasis and origination of local tumor invasion depend on the extracellular matrix (ECM) degradation. The cancer microenvironment, particularly the ECM, may be considered a key factor in cancer progression. Matrix metalloproteinases (MMPs) are classified as the main factors responsible for the degradation of ECM components. Therefore, the aim of the study was to evaluate the expression and activity of matrix metalloproteinase 2 and 9 (MMP-2 and MMP-9) in urinary bladder cancer according to different stages. MATERIAL AND METHODS: Urinary bladder tissue samples were analyzed. Cancer patients were divided into two groups: low-grade tumors (LG; Group I) and high-grade tumors (HG; Group II). Control tissue was obtained from the opposite site to the tumor. MMPs content and activity (actual and specific) were evaluated using ELISA and Western blot methods, respectively. RESULTS: Both MMPs are present in high and low molecular complexes in healthy or bladder cancer tissues. The content of MMP-9 is enhanced in comparison with MMP-2, particularly in HG cancer tissue. The actual activity of MMP-2 was highest in LG cancer tissue whereas the actual activity of MMP-9 was highest in HG cancer. Specific activity of both MMPs was highest in LG cancer, but the activity of MMP-9 was higher in comparison with MMP-2. CONCLUSIONS: In conclusion, the content and specific activity of MMP-9 were increased in comparison with MMP-2. The revealed differences in content and activity of both MMPs demonstrate their different participation in ECM remodeling at different stages of cancer development. Moreover, it seems that MMP-9 has higher clinical utility than MMP-2 as a potential therapeutic option and a diagnostic biomarker of urinary bladder cancer.

11.
Arch Med Sci ; 19(1): 107-115, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36817674

RESUMO

Introduction: In the majority of Western European countries, the coronavirus disease (COVID-19) pandemic has led to a dramatic reduction in urooncological surgeries. Our objective was to evaluate the impact of the pandemic on volume and patterns of urooncological surgery in Poland. Material and methods: This is a retrospective analysis of 10 urologic centres in Poland. Data regarding major oncological procedures performed after the COVID-19 pandemic outbreak (March 15, 2020 - May 31, 2020) were evaluated and compared with data from the respective period in 2019. Results: Between March 15, 2020 and May 31, 2020, a total of 968 oncological procedures were performed in participating centres. When compared to the respective period in 2019 (1063 procedures) the overall number of surgeries declined by 8.9%. The reduction was observed for transurethral resection of bladder tumour (TURBT) (20.1%) and partial nephrectomies (PN) (16.5%). Surgical activity considering radical nephrectomy (RN), nephroureterectomy (NU), and radical prostatectomy (RP) remained relatively unchanged, whereas radical cystectomy (RC) burden showed a significant increase (90.9%). Characteristics of patients treated with TURBT, RC, NU, PN, and RN did not differ significantly between the compared periods, whereas RP in the COVID-19 period was performed more frequently in patients with a higher grade group (p = 0.028) and positive digital rectal examination (p = 0.007). Conclusions: Surgical activity for urological cancers in Poland has been maintained during the first wave of the COVID-19 pandemic. The Polish strategy in the initial period of the COVID-19 crisis mirrors the scenario of hard initial lockdown followed by adaptive lockdown, during which oncological care remained undisrupted and did not require particular priority triage.

12.
Psychooncology ; 32(3): 438-445, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36631917

RESUMO

BACKGROUND: Studies show significant co-occurrence of bipolar disorder and prostate cancer, as well as the presence of shared genes associated with both diseases. Our aim was to evaluate whether prostate cancer patients present bipolar spectrum symptoms and to establish their possible associations with stress related symptoms during diagnosis and the course of the cancer therapy. METHODS: 200 participants were enrolled to this study: 100 prostate cancer patients and 100 healthy males. Bipolar spectrum symptoms were measured with the use of Mood Disorder Questionnaire and Hypomania Checklist-32 (HCL-32). Stress related symptoms were rated with The Impact of Events Scale-Revised (IES-R), Perceived Stress Scale-10 (PSS-10) and Generalised Self-Efficacy Scale (GSES). RESULTS: In comparison to healthy controls group, prostate cancer patients have shown higher HCL-32 scores. Mood Disorder Questionnaire measures were associated with more severe stress related to prostate cancer diagnosis and treatment reflected by higher scores of IES-R and its subscales (Avoidance, Intrusions and Hyperarousal). Mood Disorder Questionnaire, HCL-32, PSS-10, IES-R and GSES measures were not associated with clinical characteristics of prostate cancer severity. LIMITATIONS: Cross-sectional study model precluded identification of causal relationship among variables. Bipolar spectrum symptoms and stress related measures were based on auto-questionnaires. CONCLUSIONS: To our best knowledge, this is the first study evaluating bipolar spectrum symptoms in prostate cancer patients. We have shown that this clinical group presents increased bipolarity traits compared to healthy individuals. Moreover, bipolar spectrum symptoms were associated with more severe stress related to the prostate cancer diagnosis and its treatment, reflected in avoidance, hyperarousal, and intrusions.


Assuntos
Transtorno Bipolar , Neoplasias da Próstata , Masculino , Humanos , Transtorno Bipolar/diagnóstico , Estudos Transversais , Inquéritos e Questionários , Pacientes
13.
Prostate Cancer Prostatic Dis ; 26(1): 170-179, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36284192

RESUMO

BACKGROUND: Combination systemic therapies have become the standard for metastatic hormone-sensitive prostate cancer (mHSPC). However, the effect of age on oncologic outcomes remains unknown. Our aim was to perform a systematic review, meta-analysis, and network meta-analysis (NMA) on the effect of chronological age on overall survival (OS) in patients treated with combination therapies for mHSPC. METHODS: We searched the PubMed®, Web of ScienceTM, and Scopus® databases to identify randomized controlled trials (RCTs) that analyzed the efficacy of combination systemic therapies using ADT plus docetaxel and/or androgen receptor signaling inhibitor (ARSI) in patients with mHSPC. We included studies, which provided separate hazard ratios (HRs) for younger vs. older patients. The selected age cut-off was 70 years (±5 years). Our outcome of interest was OS. RESULTS: We included nine RCTs with a total of 9183 patients. Younger and older men constituted 51% and 49% of included patients, respectively. Docetaxel plus ADT significantly improved OS among both older (HR 0.79, 95% CI 0.63-0.99, p = 0.04) and younger patients (HR 0.79, 95% CI 0.69-0.90, p < 0.001) with no differences according to age. ARSI plus ADT improved OS in older (HR 0.72, 95% CI 0.64-0.80, p < 0.001) and younger (HR 0.58, 95% CI 0.51-0.66, p < 0.001) patients; younger patients did benefit more (p = 0.02). On NMA treatment ranking, triplet therapy showed the highest probability of OS benefit irrespective of age group; in older patients, the benefit of triplet therapy compared to doublet was less expressed. CONCLUSIONS: Patients with mHSPC benefit from combination systemic therapies irrespective of age; the effect is, however, more evident in younger patients. Chronological age alone seems not to be a selection criteria for the administration of combination systemic therapies.


Assuntos
Neoplasias da Próstata , Masculino , Humanos , Idoso , Neoplasias da Próstata/patologia , Docetaxel , Antagonistas de Androgênios/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Hormônios/uso terapêutico
14.
Analyst ; 148(2): 278-285, 2023 Jan 16.
Artigo em Inglês | MEDLINE | ID: mdl-36525038

RESUMO

Urothelial bladder carcinoma (BC) is primarily diagnosed with a subjective examination of biopsies by histopathologists, but accurate diagnosis remains time-consuming and of low diagnostic accuracy, especially for low grade non-invasive BC. We propose a novel approach for high-throughput BC evaluation by combining infrared (IR) microscopy of bladder sections with machine learning (partial least squares-discriminant analysis) to provide an automated prediction of the presence of cancer, invasiveness and grade. Cystoscopic biopsies from 50 patients with clinical suspicion of BC were histologically examined to assign grades and stages. Adjacent tissue cross-sections were IR imaged to provide hyperspectral datasets and cluster analysis segregated IR images to extract the average spectra of epithelial and subepithelial tissues. Discriminant models, which were validated using repeated random sampling double cross-validation, showed sensitivities (AUROC) ca. 85% (0.85) for the identification of cancer in epithelium and subepithelium. The diagnosis of non-invasive and invasive cases showed sensitivity values around 80% (0.84-0.85) and 76% (0.73-0.80), respectively, while the identification of low and high grade BC showed higher sensitivity values 87-88% (0.91-0.92). Finally, models for the discrimination between cancers with different invasiveness and grades showed more modest AUROC values (0.67-0.72). This proves the high potential of IR imaging in the development of ancillary platforms to screen bladder biopsies.


Assuntos
Carcinoma de Células de Transição , Neoplasias da Bexiga Urinária , Humanos , Carcinoma de Células de Transição/patologia , Neoplasias da Bexiga Urinária/diagnóstico por imagem , Neoplasias da Bexiga Urinária/patologia , Bexiga Urinária/patologia , Aprendizado de Máquina , Diagnóstico por Imagem , Invasividade Neoplásica
15.
Pol J Pathol ; 74(4): 265-270, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38477088

RESUMO

Prostate cancer (PC) is one of the most common cancers in males. A significant proportion of PCs bear TMPRSS2-ETS translocation and overexpress ERG transcription factor, allowing classification into ERG+ and ERG- groups, which differ in several features including the tumor microenvironment. The aim of the study was to verify whether they differ in expression of the miRNA in the microenvironment. The material consisted of 150 radical prostatectomies. Immunohistochemistry (IHC) for ERG was done using a routine method. FISH for TMPRSS2-ETS translocation was done with a ZytoLight SPEC ERG/TMPRSS2 TriCheck Probe. From each case, a representative section was selected, and tumor and non-tumor were microdissected with the LMD7000 device. RNA was isolated using the RNeasy Mini Kit system (Qiagen) and miRNA libraries were prepared with the NEBNext Multiplex Small RNA Library Prep Set for Illumina and their sequencing was performed on the NexSeq 500. Statistical analysis was done with Statistica and R software. When analyzing the expression of miRNAs some differences could be seen, but after correction for multiple comparisons was applied, these were found to be non- significant.


Assuntos
MicroRNAs , Neoplasias da Próstata , Masculino , Humanos , Transativadores , Regulador Transcricional ERG/genética , Neoplasias da Próstata/genética , Fatores de Transcrição/genética , Translocação Genética , Microambiente Tumoral
16.
Arab J Urol ; 21(4): 241-247, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38178943

RESUMO

Background: While family history (FHx) of prostate cancer (PCa) increases the risk of PCa, comparably less is known regarding the impact of FHx on pathologic and oncologic outcomes after radical prostatectomy (RP). Methods: We retrospectively reviewed our multicenter database comprising 6,041 nonmetastatic PCa patients treated with RP. Patients with a FHx of PCa in one or more first-degree relatives were considered as FHx positive. We examined the association of FHx with pathologic outcomes and biochemical recurrence (BCR) using logistic and Cox regression models, respectively. Results: In total, 1,677 (28%) patients reported a FHx of PCa. Compared to patients without FHx, those with, were younger at RP (median age of 59 vs. 62 years, p < 0.01), and had significantlymore favorable biopsy and RP histopathologic findings. On multivariable logistic regression analysis, positive FHx was associated with extracapsular extension (odds ratio [OR] 0.77, 95% confidence interval [CI] 0.66-0.90, p < 0.01; model AUC 0.73) and upgrading (OR 0.70, 95% CI 0.62-0.80, p < 0.01; model AUC 0.68). Incorporating FHx significantly improved the AUC of the base model for upgrading (p < 0.01). Positive FHx was not associated with BCR in pre- and postoperative multivariable models (p = 0.1 and p = 0.7); c-indexes of Cox multivariable models were: 0.73 and 0.82, respectively. Conclusions: We found that patients with clinically nonmetastatic PCa who have positive FHx of PCa undergo RP at a younger age and have more favorable pathologic outcomes. Nevertheless, FHx of PCa did not confer better BCR rates, suggesting that FHx leads to potentially early detection and treatment without impact on BCR.

17.
Wideochir Inne Tech Maloinwazyjne ; 17(3): 540-547, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36187062

RESUMO

Introduction: Radical prostatectomy (RP) is the standard surgical treatment for localized prostate cancer (PCa), with excellent oncologic outcomes; however, complications such as post-prostatectomy incontinence could significantly affect quality of life. Aim: To provide data on long-term urinary functional outcomes of bladder neck preservation (BNP) combined with distal urethral length preservation (DULP) in patients treated with videolaparoscopic prostatectomy. Material and methods: In this retrospective study, data were analysed from 619 consecutive patients who underwent laparoscopic radical prostatectomy (LRP) due to localized prostate cancer between November 2014 and December 2018 in a single tertiary care centre in Poland. Of these patients, 227 had BNP and DULP during the procedure. Urinary continence status was assessed in patients at 3, 6, 12, and 18 months after LRP. Cancer resection was assessed by surgical margin status. Results: In the group with BNP and DULP, urinary continence recurred earlier than it did in the control group up to 3 months after surgery: 204 (89.8%) patients in this group were fully continent compared with 283 (72.2%) in the control group (p < 0.001). The difference was also significant after 6 months (95.1% vs. 80.6%, respectively; p < 0.001). Despite these early promising results, there was no difference in urinary continence recovery after 12 and 18 months. There was also no difference between the 2 groups regarding surgical margin status of the resected tissue. Conclusions: Our study showed that BNP combined with DULP is a safe procedure that helps to improve early urinary continence rates after surgery without altering the risk of positive surgical margin.

18.
Front Surg ; 9: 862348, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36061049

RESUMO

The management of nephrolithiasis has been complemented well by modern technological advancements like virtual reality, three-dimensional (3D) printing etc. In this review, we discuss the applications of 3D printing in treating stone disease using percutaneous nephrolithotomy (PCNL) and retrograde intrarenal surgery (RIRS). PCNL surgeries, when preceded by a training phase using a 3D printed model, aid surgeons to choose the proper course of action, which results in better procedural outcomes. The 3D printed models have also been extensively used to train junior residents and novice surgeons to improve their proficiency in the procedure. Such novel measures include different approaches employed to 3D print a model, from 3D printing the entire pelvicalyceal system with the surrounding tissues to 3D printing simple surgical guides.

19.
Front Surg ; 9: 911206, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35846972

RESUMO

Telemedicine has great potential in urology as a strong medium for providing patients with continuous high-quality urological care despite the hurdles involved in its implementation. Both clinicians and patients are crucial factors in determining the success of tele-consults in terms of simplicity of use and overall satisfaction. For it to be successfully incorporated into routine urological practice, rigorous training and evidence-based recommendations are lacking. If these issues are addressed, they can provide a significant impetus for future tele-consults in urology and their successful deployment, even beyond the pandemic, to assure safer and more environment-friendly patient management.

20.
J Clin Med ; 11(13)2022 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-35806859

RESUMO

This review aims to present the applications of deep learning (DL) in prostate cancer diagnosis and treatment. Computer vision is becoming an increasingly large part of our daily lives due to advancements in technology. These advancements in computational power have allowed more extensive and more complex DL models to be trained on large datasets. Urologists have found these technologies help them in their work, and many such models have been developed to aid in the identification, treatment and surgical practices in prostate cancer. This review will present a systematic outline and summary of these deep learning models and technologies used for prostate cancer management. A literature search was carried out for English language articles over the last two decades from 2000-2021, and present in Scopus, MEDLINE, Clinicaltrials.gov, Science Direct, Web of Science and Google Scholar. A total of 224 articles were identified on the initial search. After screening, 64 articles were identified as related to applications in urology, from which 24 articles were identified to be solely related to the diagnosis and treatment of prostate cancer. The constant improvement in DL models should drive more research focusing on deep learning applications. The focus should be on improving models to the stage where they are ready to be implemented in clinical practice. Future research should prioritize developing models that can train on encrypted images, allowing increased data sharing and accessibility.

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