565 research outputs found

    Concomitant Carcinoma in situ in Cystectomy Specimens Is Not Associated with Clinical Outcomes after Surgery

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    Objective: The aim of this study was to externally validate the prognostic value of concomitant urothelial carcinoma in situ (CIS) in radical cystectomy (RC) specimens using a large international cohort of bladder cancer patients. Methods: The records of 3,973 patients treated with RC and bilateral lymphadenectomy for urothelial carcinoma of the bladder (UCB) at nine centers worldwide were reviewed. Surgical specimens were evaluated by a genitourinary pathologist at each center. Uni- and multivariable Cox regression models addressed time to recurrence and cancer-specific mortality after RC. Results: 1,741 (43.8%) patients had concomitant CIS in their RC specimens. Concomitant CIS was more common in organ-confined UCB and was associated with lymphovascular invasion (p < 0.001). Concomitant CIS was not associated with either disease recurrence or cancer-specific death regardless of pathologic stage. The presence of concomitant CIS did not improve the predictive accuracy of standard predictors for either disease recurrence or cancer-specific death in any of the subgroups. Conclusions: We could not confirm the prognostic value of concomitant CIS in RC specimens. This, together with the discrepancy between pathologists in determining the presence of concomitant CIS at the morphologic level, limits the clinical utility of concomitant CIS in RC specimens for clinical decision-making. Copyright (C) 2011 S. Karger AG, Base

    Renal cell carcinoma incidence rates and trends in young adults aged 20-39 years

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    Background: The burden of renal cell carcinoma (RCC) in young adults received marginal attention. We assessed contemporary gender, race and stage-specific incidence and trends of RCC among young adults (20-39 years-old) in the United States.Methods: Within Surveillance, Epidemiology, and End Results database (2000-2016), patients aged 20-39 years with histologically confirmed RCC were included. Age-standardized incidence rates (ASR per 100,000 person-years) were estimated. Temporal trends were calculated through joinpoint regression analyses to describe the average annual percent change (AAPC).Results: From 2000-2016, 7767 new RCC cases were recorded (ASR 0.6, AAPC + 5.0 %, p &lt; 0.001). ASRs were higher in males than in females (0.7 and 0.5, respectively) and increased significantly in both genders (AAPC + 5.0 % and + 4.7 % both p &lt; 0.001, respectively). Non-Hispanic American Indian/Alaska Native had the highest incidence (ASR 1.0) vs. non-Hispanic Asian or Pacific Islander the lowest (ASR 0.3). ASRs significantly increased in all ethnic groups. T1aNOMO and T1bNOMO stages showed the highest incidence and increase (ASR 0.3, AAPC + 5.9 %, p &lt; 0.001 and ASR 0.1, AAPC + 5.7 %, p &lt; 0.001, respectively). Also regional and distant stages increased (AAPC + 3.7 %, p = 0.001 and AAPC + 1.5 %, p = 0.06). The most frequent tumor characteristics were G2 (44.4 %, ASR 0.3, AAPC + 6.3 %, p &lt; 0.001) and G1 (13.1 %, ASR 0.1, AAPC + 1.1 %, p = 0.2), as well as clear cell histology (54.8 %, ASR 0.3, AAPC + 7.6 %, p &lt; 0.001).Conclusions: RCC in young adults is rare, but increasing. This is mainly due to T1aN0M0 tumors. Nonetheless, also regional diseases are significantly increasing. Differences between ethnic groups exist and may warrant further research

    ПОБОЧНЫЕ ЭФФЕКТЫ СОРАФЕНИБА, СУНИТИНИБА И ТЕМСИРОЛИМУСА И ИХ ЛЕЧЕНИЕ У БОЛЬНЫХ МЕТАСТАТИЧЕСКИМ ПОЧЕЧНО-КЛЕТОЧНЫМ РАКОМ

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    Objective: to provide a systematic review of the adverse reactions of sorafenib, sunitinib, and temsirolimus and to outline actions for their prevention and correction.Materials and methods. To provide a description of the main methods to decrease the toxicity of these drugs, the authors made a systemat- ic review of their adverse reactions, by using the publications available in the PubMed database, monographs on the medicines, and instruc- tions for their medical use. Results. The frequency of their adverse reactions varied from &lt; 1 to 72%. Grades III—IV side effects are noted more rarely; their incidence is &lt; 1 to 13% for sorafenib, &lt; 1 to 16% for sunitinib, and 1 to 20% for temsirolimus. Sinitinib causes most grades III—IV adverse reactions and sofafenib does the least. However, close comparative studies of the safety of these kinase inhibitors are still lacking. Virtually all side effects can be effectively prevented and treated.  Conclusion. The prevention, timely recognition, and treatment of the adverse reactions of these agents are of great importance, which allows avoidance of the unneeded dosage reduction that may result in worse therapeutic efficiency.   Цель исследования — представить систематический обзор побочных эффектов сорафениба, сунитиниба и темсиролимуса, а также в общих чертах описать меры по их предупреждению и коррекции. Материалы и методы. Для того чтобы представить описание основных методов, направленных на снижение токсичности этих препаратов, нами проведен систематический обзор побочных эффектов на основе публикаций в базе данных PubMed, монографий по лекарственным препаратам и инструкций по их медицинскому применению.Результаты. Частота развития побочных эффектов варьирует от &lt; 1 до 72%. Побочные эффекты III—IV степени отмечаются реже, частота их возникновения от &lt; 1 до 13% для сорафениба, от &lt; 1 до 16% — для сунитиниба и от 1 до 20% — для темсиролимуса. Сунитиниб вызывает наибольшее количество побочных эффектов III—IV степени, а сорафениб — наименьшее. Однако все еще отсутствуют тщательные сравнительные клинические исследования безопасности этих ингибиторов киназ. Практически все побочные эффекты можно эффективно предупреждать и лечить.Заключение. Большое значение имеют профилактика, своевременное распознавание и лечение побочных эффектов этих препаратов, что позволяет избежать ненужного снижения дозы, грозящего ослаблением эффективности лечения.

    External validation of the preoperative Karakiewicz nomogram in a large multicentre series of patients with renal cell carcinoma

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    To perform a formal external validation of the preoperative Karakiewicz nomogram (KN) for the prediction of cancer-specific survival (CSS) using a large series of surgically treated patients diagnosed with organ-confined or metastatic renal cell carcinoma (RCC).Patient population originated from a series of retrospectively gathered cases that underwent radical or partial nephrectomy between years 1995 and 2007 for suspicion of kidney cancer. The original Cox coefficients were used to generate the predicted risk of CSS at 1, 2, 5, and 10 years following surgery and compared to the observed risk of CSS in the current population. External validation was quantified using measures of predictive accuracy, defined as model discrimination and calibration.A total of 3,374 patients were identified. Relative to the original development cohort, the current sample population had a larger proportion of patients with localized (40.0 vs. 26.3 \%, P < 0.001) and non-metastatic (92.2 vs. 88.1 \%, P = 0.03) disease at presentation. Model discrimination for the prediction of CSS was 87.8 \% (95 \% CI, 84.4-91.4) at 1 year, 87.0 \% (95 \% CI, 84.4-89.5) at 2 years, 84.7 \% (95 \% CI, 82.3-87.1) at 5 years, and 85.9 \% (95 \% CI, 83.2-88.6) at 10 years. The relationship between predicted and observed CSS risk was adequate in the calibration plot.The use of the KN for the prediction of CSS in patients diagnosed with renal cell carcinoma was validated in the current study. In consequence, this tool may be recommended for routine clinical counseling in patients with various stages of RCC in the preoperative setting

    The importance of pelvic lymph node dissection in the elderly population: implications for interpreting the 2010 national comprehensive cancer network practice guidelines for bladder cancer treatment

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    Purpose: National Comprehensive Cancer Network practice guidelines indicate that pelvic lymph node dissection can be omitted at radical cystectomy in elderly patients. We examined the pelvic lymph node dissection rate in patients 80 years old or older and the impact of pelvic lymph node dissection on cancer specific and overall mortality in these patients.Materials and Methods: We examined the records of 11,183 patients treated with radical cystectomy in 17 Surveillance, Epidemiology and End Results registries. We performed univariate and multivariate Cox regression analysis to test the effect of pelvic lymph node dissection on cancer specific and overall mortality.Results: Overall pelvic lymph node dissection was omitted in 25% of patients, including 24.2% younger than 80 years and 30.8% 80 years old or older (p <0.001). The 5-year rate of freedom from cancer specific mortality for pelvic lymph node dissection vs no pelvic lymph node dissection was 62.5% vs 59.9% in patients younger than 80 years, and 50..

    Biological and prognostic implications of biopsy upgrading for high-grade upper tract urothelial carcinoma at nephroureterectomy

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    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 &lt; 0.001) and positive lymph nodes (LNs; p &lt; 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 (&gt;= 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
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