首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.

Objectives

To describe the effects of cytoreductive nephrectomy (CN) on the natural course of metastatic renal cell carcinoma (mRCC). CN appears to stabilize metastatic lesions in mRCC in a subgroup of patients and we hypothesize that systemic treatment might be deferred in these patients with stable disease after CN.

Subjects and methods

Overall, 45 patients with mRCC who underwent CN and subsequent oncologic follow-up were included in this retrospective, single-center analysis. After CN, patients were followed at least every 3 months with clinical evaluation, contrast-enhanced computerized tomography scan of chest and abdomen, with additional imaging if needed. At 3 months, patients were radiographically evaluated and categorized into nonresponders (death or progression) or responders (stable disease or remission). Kaplan-Meier and Cox proportional hazards regression statistics were used to describe prognostic factors for overall survival (OS) and systemic therapy–free survival (STFS).

Results

Median OS was 31(3–121) months. Further, 24 (53.3%) and 21 (46.7%) patients were classified as responders and nonresponders at 3 months, respectively. Responders had a significant better 2-year OS compared with nonresponders (81.7% vs. 26.5%, P = 0.005). Responders also had a better 2-year STFS (40.3% vs. 6.3%, P = 0.005). On Cox regression analysis, worse OS was found to be associated with low preoperative hemoglobin levels, the absence of postoperative radiographical response, and the presence of non–clear cell pathology. The presence of postoperative radiographical response, normal preoperative lactate dehydrogenase levels, the presence of a single metastasis, and performing metastasis-directed therapy was found to be associated with a longer systemic therapy-free period.

Conclusion

A beneficial oncologic response is observed in approximately half of the patients undergoing CN. Absence of radiographic progression at 3 months is an important marker for OS and STFS. Therefore, systemic treatment might be postponed in selected patients.  相似文献   

2.

Purpose

To establish prognostic genomic biomarkers for patients with metastatic clear cell renal cell carcinoma (ccRCC).

Materials and methods

We identified 60 patients who presented with metastatic ccRCC at our institution between 2001 and 2015 and had genomic sequencing on their primary tumor. We pooled these patients with 107 other patients with the same inclusion criteria from three well-known public databases. Five commonly mutated genes were chosen for analysis: VHL, PBRM1, BAP1, SETD2, and KDM5C. Overall survival (OS) was estimated using the Kaplan-Meier method and the log-rank test was used for comparisons between groups.

Results

Median OS in the cohort was 2.5 years. Higher Fuhrman grade was associated with decreased median OS (P<0.001). Mutations in SETD2 (P = 0.027) and KDM5C (P = 0.019) were associated with reduced risk of death (hazard ratio [HR] = 0.58 [95% CI: 0.35–0.94] and HR = 0.43 [95% CI: 0.22–0.85], respectively). BAP1 mutations (P = 0.008) were associated with increased risk of death (HR = 1.81 [95% CI: 1.16–2.83]). There were significantly more female patients with a BAP1 mutation than females in the overall cohort (P = 0.001).

Conclusions

Mutations in BAP1 negatively affected OS, whereas SETD2 and KDM5C mutations were associated with prolonged OS in our pooled cohort of 167 patients with metastatic ccRCC. Our results expand upon efforts at understanding genomic biomarkers in localized disease. Those efforts set the stage for our novel investigation examining associations of select recurrent somatic mutations in stage IV patients with ccRCC.  相似文献   

3.

Purpose

Sialic acid-binding immunoglobulin-like lectins (siglecs) family has important functions in tumor progression. The purpose of our study is to figure out the correlation between the expression level of Siglec-8 and prognosis of patients with clear cell renal cell carcinoma (ccRCC), and then to predict the overall survival (OS) via a novel nomogram.

Materials and methods

A group of patients (n = 267) histologically diagnosed with ccRCC from Zhongshan Hospital were included into our study. Immunohistochemistry of Siglec-8 was performed in the tissue microarray, and the staining intensity was divided into high/low according to the median value of the H-score grading. Survival analyses including Kaplan-Meier analyses and Cox regression analyses were performed to evaluate the association between Siglec-8 expression and the survival of patients in different risk groups. Stage, size, grade, and necrosis score and University of California Los Angeles Integrated Staging System score were used in the risk stratification. A nomogram incorporating Siglec-8 and several other clinical parameters was plotted for predicting the 5-year and 8-year OS.

Results

Siglec-8 was observed dominantly on the membrane of tumor cells. The enhanced expression level of Siglec-8 had significant correlation with adverse overall and disease-free survival of patients (P<0.0001 and P = 0.0186, respectively). The association was more significant in patients with lower risk. Cox regression analyses defined Siglec-8 as an independent prognostic factor of OS (P<0.001 for univariate analysis, P = 0.003 for multivariate analysis). The new nomogram integrating Siglec-8 with several traditional prognostic factors proved to be more accurate than conventional prognostic system using tumor node metastasis stage only (Harrell c-index: 0.801, 95% CI: 0.755–0.847 vs. 0.717, 95% CI: 0.662–0.772).

Conclusion

Our study has found that the elevated expression level of Siglec-8 was correlated with poor prognosis of patients with ccRCC. Siglec-8, incorporation with other clinical parameters, could perform better in prediction of patients? OS.  相似文献   

4.

Purpose

To identify preoperative predictive factors for final ureteral section invasion after radical cystectomy (RC) and to validate significant factors on an external independent cohort.

Material and methods

We retrospectively reviewed data of all consecutive RC performed for bladder cancer in 2 high-volume institutions. Clinical, pathological, and follow-up data were collected prospectively and reviewed retrospectively. Pathological evaluation was performed by 2 well-trained uropathologists in each center. Logistic regression analyses were performed to identify predictive factors for final ureteral sections involvement. Significant factors in cohort A were validated in cohort B. Receiver operating curve and area under curve were modeled to evaluate predictive accuracy of the markers.

Results

A total of 441 RC were performed in center A and 307 RC were performed in center B. Mean follow-ups were 36.2 and 38.1 months, respectively. Invasion of the final ureteral section was observed on 5.5% of patients in cohort A and 4.8% of patients in cohort B. In cohort A, multivariable logistic regression identified preoperative hydronephrosis on computed tomography scan (odds ratio [OR] = 4.9, P = 0.004) and presence of Carcinoma in situ (CIS, OR = 3.9, P = 0.01) as the only factors associated with ureteral sections positivity. In cohort B, hydronephrosis and CIS were both associated with ureteral sections positivity in univariable analysis. In multivariable analysis, only hydronephrosis remained significant (OR = 5.9, P = 0.01). Predictive accuracy of hydronephrosis and CIS combined in 1 variable was 0.72.

Conclusion

Hydronephrosis and bladder CIS have good accuracy in predicting ureteral sections positivity after RC. In the presence of those factors, ureteral frozen sections should be performed.  相似文献   

5.

Purpose

Accumulating evidence indicates that CXC chemokine receptor 6 (CXCR6) has a crucial role in cancer development and progression, however, its role in clear cell renal cell carcinoma (ccRCC) remains obscure. The aim of this study is to investigate the prognostic value of CXCR6 expression in patients with ccRCC following surgery.

Materials and methods

This study retrospectively included 239 patients with ccRCC who underwent nephrectomy and had paraffin tissue available at a single center. CXCR6 expression in tumor tissue was evaluated by immunohistochemistry and its associations with overall survival (OS) and recurrence-free survival (RFS) were investigated.

Results

A total of 47.3% tumors were considered as high expression of CXCR6, which was significantly associated with the male sex (P = 0.003) and high Fuhrman grade (P<0.001). A high expression of CXCR6 indicated a reduced OS (P<0.001) and RFS (P = 0.007). Multivariate analysis demonstrated that CXCR6 expression was an independent prognostic factor of OS (hazard ratio = 2.604; 95% CI: 1.338–5.068; P = 0.005) and RFS (hazard ratio = 1.957; 95% CI: 1.065–3.595; P = 0.031). Subgroup analysis found that CXCR6 expression could differentiate survival risks among patients with high-risk disease. Moreover, a nomogram integrating CXCR6 expression and traditional clinical and pathologic features was established and predicted postsurgical recurrence-risk well at 3- and 5-year.

Conclusions

The expression of CXCR6 in tumor tissue may serve as a potential prognostic biomarker to refine clinical prognosis prediction combined with traditional clinical and pathological analysis for patients with ccRCC after surgery.  相似文献   

6.

Objective

To investigate contemporary survival trends in penile cancer.

Methods

The National Cancer Database was queried for men with penile cancer diagnosed between 1998 and 2009. Patient, tumor, treatment, and facility characteristics were obtained. Overall survival (OS) was analyzed using the Kaplan-Meier method and multivariable Cox proportional hazards regression model for all cases and stratified by stage.

Results

A total of 8,122 cases of penile cancer were reported from 1998 to 2009 in the National Cancer Database. Complete staging, survival, and covariate data were available for 5,043 cases. The estimated crude 5-year OS for the entire cohort was 61.0%. For all patients, no significant differences in crude 5-year OS were detected between 2006 to 2009 and 2002 to 2005 compared to 1998 to 2001. On multivariable analysis, OS did not significantly differ across all eras. Regional lymph node dissection was associated with improved OS (hazard ratio [HR] = 0.777, P ≤ 0.0001). In patients who underwent lymph node dissection, dissection of ≥8 nodes significantly improved survival (HR = 0.672; P = 0.0011). Additional modeling stratified by stage revealed that OS for stage II cancers increased significantly in 2006 to 2009 compared to 1998 to 2001 (HR = 0.714; P = 0.0034).

Conclusions

Survival in penile cancer has remained unchanged as a whole and for each stage, except for stage II disease. An improved survival trend was detected in stage II penile cancer. Performing a lymph node dissection, especially extensive dissections, may benefit long-term survival.  相似文献   

7.

Objective

To assess the relationship of race and margin status among patients undergoing robotic partial nephrectomy (RPN) for T1 renal tumors from a contemporary population-based cohort.

Methods

Using the National Cancer Database, we identified patients with localized renal cell carcinoma (RCC) (clinical T1N0M0) who underwent RPN from 2010 to 2013. The primary outcome was positive surgical margins (PSM). Multivariable logistic regression analyses were used to assess the association between race and PSM adjusting for patient clinicopathologic and hospital factors.

Results

Among 12,515 patients undergoing RPN in our cohort, 8.3% had PSM (n = 1,045). When compared to white patients undergoing RPN for T1 RCC with PSM (7.9%), we observed a higher proportion of PSM among African American (AA) (10.8%; P = 0.005) and Hispanic/Latino patients (8.8%; P = 0.005), respectively. On multivariable analysis, AA patients had higher odds of PSM compared to white patients (odds ratio = 1.40; P = 0.008). Other factors associated with higher odds of PSM were treatment at nonacademic centers relative to academic centers (10.4% vs. 6.9%; odds ratio = 1.57; P<0.001).

Conclusions

In this contemporary population-based cohort, AA patients undergoing RPN for localized RCC tumors are at higher risk for PSM. These results suggest potential differences in quality of care and patient selection of RPN by race.  相似文献   

8.

Purpose

We aimed to identify prognostic clinicopathological factors and to create a nomogram able to predict overall survival (OS) in recurrent urothelial carcinoma of the bladder (UCB) after radical cystectomy (RC).

Materials and methods

Among 1,087 patients with UCB who had undergone RC at our 11 institutions between 1990 and 2010, 306 patients who subsequently developed distant metastasis or local recurrence or both were identified. Clinical data were collected with medical record review. Univariate and multivariate Cox regression models addressed OS after recurrence. A nomogram predicting postrecurrence OS was constructed based on Cox proportional hazards model, without using postrecurrence factors (systemic chemotherapy and resection of metastasis). The performance of the nomogram was internally validated by assessing concordance index and calibration plots.

Results

Of the 306 patients, 268 died during follow-up with a median survival of 7 months (95% CI: 5.8–8.5). Postrecurrence chemotherapy was administered in 119 patients (38.9%). Multivariable analysis identified 9 independent predictors for OS; period of time from RC to recurrence (time-to-recurrence), symptomatic recurrence, liver metastasis, hemoglobin level, serum alkaline phosphatase level, serum lactate dehydrogenase level, serum C-reactive protein level, postrecurrence chemotherapy, and resection of metastasis. A nomogram was formed with the following 5 variables to predict OS: time-to-recurrence, symptomatic recurrence, liver metastasis, albumin level, and alkaline phosphatase level. Concordance index rate was 0.75 (95% CI: 0.72–0.78) by internal validation using Bootstraps with 1,000 resamples. Calibration plots showed that the nomogram fitted well.

Conclusions

We identified 9 clinicopathological factors as independent OS predictors in postcystectomy recurrence of UCB. We also created a validated nomogram with 5 variables that efficiently stratified those patients regardless of eligibility for chemotherapy. The nomogram would be useful for acquiring relevant prognostic information and for stratifying patients for clinical trials.  相似文献   

9.

Purpose

Overexpression of Caveolin-1 has been associated with cancer growth, migration, and metastases in several malignancies, but only few data are available on its role in bladder cancer (BCa). The aim of this study is to validate Caveolin-1 as a prognosticator of recurrence-free survival (RFS), overall survival (OS) and cancer-specific survival (CSS) in a large cohort of patients treated with radical cystectomy (RC) for BCa.

Methods

Caveolin-1 expression was evaluated by immunochemistry on a tissue microarray from 424 patients treated with RC for UCB at a single institution. Caveolin-1 was considered overexpressed when at least 50% of the tumor cells stained positively. Univariable and multivariable Cox proportional hazards regression models were used to assess the association of Caveolin-1 expression with RFS, OS, and CSS.

Results

Overexpression of Caveolin-1 was observed in 116 (27.4%) patients and was associated with lymph node metastasis (P = 0.003). Median follow-up for patients alive at last follow-up was 129 months (interquartile range [IQR]: 82–178). Patients with overexpression of Caveolin-1 had significant worse RFS, OS, and CSS compared to those with normal expression (log-rank test, P = 0.008, P = 0.001, and P = 0.005, respectively). At multivariable analyses that adjusted for the effects of standard clinicopathologic features, Caveolin-1 remained associated with OS (hazard ratio = 1.47, P = 0.002) and CSS (hazard ratio = 1.42, P = 0.03). Conversely, no association with RFS was found (P = 0.1). Addition of Caveolin-1 in a model for prediction of survival did not improve the accuracy of the prognostic model. Actually, C-index did not differ among models with or without Caveolin-1 (0.72 for a model predicting RFS, 0.65 for OS, and 0.71 for CSS).

Conclusions

Caveolin-1 is overexpressed in one-third of patients with BCa treated with RC. Overexpression of Caveolin-1 is significantly associated with OS and CSS, but not with RFS, in patients with BCa treated with RC. However, it is not clinically useful as it does not improve upon the predictive accuracy of survival achieved by pathologic variables alone.  相似文献   

10.

Objectives

Recent studies have demonstrated that up-front docetaxel combined with androgen deprivation therapy (ADT) prolongs survival in some patients with metastatic hormone-naïve prostate cancer (mHNPC). However, new biomarkers for selecting personalized treatment strategies for mHNPC are warranted. We evaluated the value of low-molecular-weight protein tyrosine phosphatase (LMW-PTP) expression as a prognosticator in men with mHNPC.

Methods and materials

A total of 48 men with mHNPC diagnosed from 2003 to 2009 were enrolled in this study. Prostate cancer tissues obtained by needle biopsies were immunohistochemically stained for LMW-PTP. Correlations between LMW-PTP expression and clinicopathological characteristics were then assessed.

Results

At the time of analysis, 29 (60.4%) patients were alive, whereas 15 (31.3%) and 4 (8.3%) died of prostate cancer and nonprostate cancer, respectively. Of these, 29 (60.4%) had low LMW-PTP expression and 19 (39.6%) had high expression. Median overall survival (OS) for patients with high LMW-PTP expression was not reached and that for patients with low LMW-PTP expression was 23.8 months. High LMW-PTP expression was significantly correlated with a shorter OS compared with low LMW-PTP expression (P = 0.01). Moreover, multivariate analysis showed that Gleason score (≥8 vs.≤7; HR = 5.8, 95% CI: 1.3–26.5, P = 0.02) and LMW-PTP expression (high vs. low; HR = 2.7, 95% CI: 1.0–7.2, P = 0.04) were independent prognostic factors for OS.

Conclusions

LMW-PTP is a potential biomarker to predict OS in patients with mHNPC.  相似文献   

11.

Objective

The purpose of this study was to investigate the correlation between the controlling nutritional status (CONUT) score and survival of patients with localized urothelial carcinoma of the upper urinary tract treated with radical nephroureterectomy (RNU).

Methods and materials

We retrospectively enrolled 107 patients. CONUT score was calculated based on the serum albumin concentration, lymphocyte count, and total cholesterol concentration. Patients were classified into 2 groups based on CONUT score. Relapse-free survival (RFS), cancer-specific survival (CSS), and overall survival (OS) after RNU were compared between the 2 groups, and predictors of survival were analyzed using Cox proportional hazards regression models.

Results

For CONUT score, the area under the curve was 0.588 and the optimal cutoff value was 3. Twenty-four patients (22.4%) had high CONUT scores. The patients with high CONUT scores had significantly shorter 5-year RFS, CSS, and OS than did those with low CONUT scores (RFS: 50.1% vs. 66.0%; CSS: 28.1% vs. 71.7%; OS: 26.4% vs. 66.8%; all P<0.05). Results of the multivariable analysis, after adjustment for factors such as pT stage, pN stage, tumor grade, presence of lymphovascular invasion, and C-reactive protein level, revealed that CONUT score was an independent predictor of CSS (hazard ratio [HR] = 5.44, P = 0.0016) and OS (HR = 2.90, P = 0.0214) and showed marginal significance for predicting RFS (HR = 2.26, P = 0.0581).

Conclusions

Preoperative CONUT score helps predict survival in patients with localized urothelial carcinoma of the upper urinary tract treated with RNU.  相似文献   

12.

Purpose

We compared the prognostic value of the American Joint Committee on Cancer (AJCC) TNM nodal staging system with that of lymph node (LN) density in patients with LN-positive bladder cancer who received extended or super-extended pelvic lymphadenectomy.

Methods

Of the 1,018 patients, who underwent radical cystectomy and pelvic lymphadenectomy between February 2005 and August 2014, 110 patients with LN metastases with extended (n = 68) or super-extended (n = 42) pelvic lymphadenectomy were included. All patients were staged using the 2002 (sixth edition) and 2010 (seventh edition) AJCC TNM staging systems. The association of several variables with recurrence-free survival (RFS) and overall survival (OS) was evaluated.

Results

The median number of total LNs removed was 29 (6–118) and the median LN density was 12.5% (1.6%–100%). RFS and OS were not significantly different between the 2002 (pN1-pM1) and 2010 (pN1-N3) AJCC TNM nodal staging systems (sixth edition: P = 0.512 and P = 0.519; seventh edition: P = 0.676 and P = 0.671, respectively). The 2-year RFS and OS rates according to the LN density quartiles were 58.5% and 76.9% in Q1, 39.1% and 70.8% in Q2, 28.8% and 50.1% in Q3, and 12.7% and 20.8% in Q4 (P = 0.001 and P = 0.001, respectively). Multivariate analysis adjusted for the 2010 AJCC TNM staging system showed that LN density was associated with a decreased OS (HR = 1.024; 95% CI: 1.010–1.039; P = 0.001). The nodal staging system (2002 or 2010) was not associated with the RFS and OS.

Conclusions

LN density shows a better prognostic value than the AJCC TNM nodal staging system in patients with LN-positive bladder cancer receiving extended or super-extended pelvic lymphadenectomy.  相似文献   

13.

Background

There are currently no methods in clinical use that can detect early systemic dissemination of urothelial tumor cells.

Objective

To evaluate measurement of circulating tumor cells (CTCs) as a biomarker for disseminated disease in patients with advanced bladder cancer.

Design, setting, and participants

Between March 2013 and October 2015, 88 patients were prospectively included in the study: 78 were scheduled for radical cystectomy (RC) ± perioperative chemotherapy and 10 treated with palliative chemotherapy. The CellSearch CTC test was further assessed in this context by investigating expression of epithelial cell adhesion molecule (EpCAM) in primary tumors obtained at cystectomy from an independent cohort of 409 patients.

Outcome measurements and statistical analysis

Presence of CTCs was tested for association with tumor stage, lymph node metastases, metastatic disease on [18 F]-fluorodeoxyglucose-positron emission tomography (FDG-PET), and cancer-specific and progression-free survival.

Results

CTCs were detected in 17/88 patients (19%). In 61 patients who underwent FDG-PET-computed tomography (CT), a statistically significant association with presence of CTCs was found for radiological metastatic disease but not for normal PET-CT results (12/35 [34%] vs. 2/26 [8%], P = 0.014). After a median follow-up time of 16.5 months (95% CI: 9.6–21.4), presence of CTCs was associated with an increased risk of progression among patients treated with RC with or without perioperative chemotherapy (n = 75, P = 0.049). A multivariate analysis adjusted for clinical tumor stage, clinical lymph node status, and age showed that CTCs were an independent marker of progression (n = 75; hazard ratio = 2.78; 95% CI: 1.005–7.69; P = 0.049) but not of cancer-specific death (P = 0.596). In 409 cystectomised patients, more than 392 (96%) of the bladder tumors expressed EpCAM.

Conclusions

CTCs were present in 19% of patients with advanced urothelial tumors and were associated with metastatic disease on FDG-PET-CT and with increased risk of disease progression after RC. A significant portion of urothelial cancer cells do express EpCAM and can thus be identified using EpCAM-antigen–based CTC detection methods.  相似文献   

14.
15.

Objective

To describe the incidence of ascites in metastatic papillary renal cell cancer (pRCC), identify the factors associated with its development and evaluate its prognostic effect on the survival of these patients.

Methods

A retrospective evaluation of the medical records of patients with metastatic pRCC seen at National Cancer Institute (2000–2014) was undertaken. Logistic regression to identify predictors of the development of malignant ascites and Kaplan-Meier analysis to estimate survival was done.

Results

Overall, 106 consecutive patients with metastatic pRCC were identified; sufficient data were available in 100 patients to enable assessment of ascites. Further, 20% had evidence of malignant ascites. Median age at diagnosis of ascites was 48.0 years (26.1–76.6 years) and median time to development of ascites from initial diagnosis of metastatic disease was 16.0 (0–73.3) months. There was no significant difference in the incidence of ascites between patients with hereditary and sporadic pRCC (P = 0.803) or among patients with different subtypes of pRCC (P = 0.456). Elevated platelet-lymphocyte ratio predicted development of malignant ascites in our cohort (P = 0.009). Median overall survival was shorter for patients who developed ascites [25.0 (10.2–39.8) months] compared with patients who did not develop this complication [42.5 (30.5–54.4) months, P = 0.041].

Conclusion

To our knowledge, this is the first systematic evaluation of the incidence, predictors, and prognostic effect of ascites in metastatic pRCC. Malignant ascites is a common manifestation of metastatic pRCC and is associated with a shorter overall survival. An elevated platelet-lymphocyte ratio predicts a higher risk of developing malignant ascites.  相似文献   

16.

Objectives

To investigate the effect of variant histology (VH) on survival after radical nephroureterectomy in patients with upper urinary tract urothelial carcinoma (UTUC) and the effect of adjuvant chemotherapy on the survival of patients with UTUC with VH.

Materials and methods

A total of 452 patients who underwent radical nephroureterectomy for UTUC without neoadjuvant chemotherapy in our institution between 1991 and 2012 were retrospectively analyzed. We performed a comparative analysis between pure UTUC and UTUC with VH groups. The Kaplan-Meier method was used to calculate survival estimates for cancer-specific survival (CSS) and overall survival (OS), and log-rank test was used to conduct comparisons between the groups. Univariate and multivariate Cox-proportional hazard regression analyses were performed to evaluate significant variables associated with CSS and OS.

Results

UTUC with VH was present in 41 (9.1%) patients. UTUC with VH showed aggressive clinicopathological features in comparison with pure UTUC. The Kaplan-Meier curves showed significantly decreased 5-year CSS and OS (both, P<0.001) in UTUC with VH group. Multivariate analysis revealed that VH was an independent predictor of CSS (P<0.001) and OS (P<0.002). The Kaplan-Meier curves also showed significantly decreased 5-year CSS and OS in UTUC with the VH group compared to the pure UTUC group in patients who received adjuvant chemotherapy.

Conclusions

We found that UTUC with VH harbored aggressive biologic features, and VH was an independent prognostic factor for CSS and OS on both univariate and multivariate analyses. In addition, UTUC with VH group had poorer survival outcomes than pure UTUC group in patients who received adjuvant chemotherapy. Consequently, adjuvant treatment modalities other than adjuvant chemotherapy should be considered in this group.  相似文献   

17.

Purpose

A prospective study of partial vs. radical nephrectomy demonstrated worse overall survival in patients undergoing partial nephrectomy which appeared to be driven by cardiovascular outcomes. We sought to determine if the blood pressures or use of antihypertensive medications differed between patients who underwent partial or radical nephrectomy.

Materials and methods

A tertiary-referral institutional renal mass database was queried for patients between 2006 and 2012 undergoing partial or radical nephrectomy. Serial blood pressure follow-up, clinicopathologic variables, and changes in medications were collected. Patients were excluded for inadequate data, noncurative-intent surgery, noncancer surgical indication, and absence of medication information. Time-dependent hemodynamic changes were compared by split-plot analysis of variance and addition to antihypertensive regimen was studied as time-to-event survival analyses with Kaplan-Meier curves and a Cox proportional hazards model.

Results

A final cohort of 264 partial nephrectomy and 130 radical nephrectomy cases were identified. Patients undergoing partial nephrectomy were younger, more likely to have T1 tumors, and had lower preoperative creatinine (P<0.001 for all). No differences were noted on postoperative hemodynamics (P>0.05). Significantly more patients who underwent partial nephrectomy added antihypertensive medications postoperatively (P≤0.001) and surgical treatment remained as a significant independent predictor on Cox regression (hazard ratio = 2.51, P = 0.002). Limitations include the retrospective nature of the study and potential for unidentified confounders.

Conclusion

Hemodynamic parameters after radical or partial nephrectomy may be different. The etiology of this observation, is currently unexplored. Additional prospective mechanistic investigations are warranted.  相似文献   

18.

Objective

To evaluate incidence and predictors of local failure (LF) after radical cystectomy (RC) due to bladder cancer.

Methods

We focused on 1,112 patients treated with RC, between 1990 and 2012, at a single center. LF was defined as imaging evidence of recurrence in the pelvic soft tissues or nodes below the aortic bifurcation at least 3 months before the detection of distant metastases. Competing risk analyses tested the relationship between clinical and pathological factors and the risk to develop LF. Regression tree analysis stratified patients into risk-groups based on their characteristics and the corresponding LF rate.

Results

Overall, 50 (4.5%) patients developed LF during a median follow-up period of 62 (35–92) months. On univariable competing risk regression analyses, pathological T stage (pT4 vs. pT3; hazard ratio [HR] = 2.55, P = 0.003), soft tissue surgical margin (STSM; HR = 2.95, P = 0.005), and variant histology (HR = 1.79, P = 0.03) were associated with an increased risk of developing LF. The cohort was stratified into 4 risk groups: very low (≤pT3a disease and pure urothelial histology), low (≤pT3a disease and variant histology), intermediate (pT4 disease), and high (positive STSM).

Conclusions

LF is an important event in RC patients. We developed a new risk model based on bladder cancer characteristics. Our findings could help with the identification of the best candidate for consideration of adjuvant radiotherapy.  相似文献   

19.

Background

Patient's nutritional and immunological status have a potentially significant role in survival outcome in patients with malignant tumors. We investigated the prognostic value of preoperative prognostic nutritional index (PNI) in patients with localized upper tract urothelial carcinoma (UTUC) undergoing radical nephrouretectomy (RNU).

Patients and methods

A total of 425 patients with nonmetastatic UTUC (Ta-4N0/+M0) who underwent RNU were evaluated. PNI was calculated as 10 × serum albumin concentration (g/dl) + 0.005 × lymphocyte counts (number/mm3). The associations of preoperative PNI level with clinical and pathologic variables were analyzed.

Results

The optimal cutoff value of PNI for cancer-specific survival (CSS) stratification was determined to be 46.78. Multivariate analysis identified low PNI as an independent prognostic factor for CSS (HR = 1.98, 95% CI: 1.31–2.99, P = 0.001) and overall survival (HR = 1.74, 95% CI: 1.20–2.53, P = 0.004). The estimated c-index of the multivariate model for CSS and overall survival increased from 0.777 and 0.767 to 0.791 and 0.774, respectively, when PNI added, which was higher than hypoalbuminemia (albumin<37.75 g/l) or neutrophil-to-lymphocyte ratio >2.955 added.

Conclusions

Preoperative PNI was an independent prognostic factor for predicting survival in patients with UTUC undergoing RNU. Preoperative PNI may become a useful biomarker, particularly because of its low associated cost and easy accessibility.  相似文献   

20.

Background

Sarcomatoid renal cell carcinoma (RCC) is associated with an aggressive biology and a poor prognosis. Poor-risk RCC is defined by clinical prognostic factors and demonstrates similarly aggressive behavior. No standard treatment exists for patients with sarcomatoid RCC, and treatment options for patients with poor-risk disease are of limited benefit. The objective of this study was to investigate the efficacy of antiangiogenic therapy in combination with cytotoxic chemotherapy in clinically aggressive RCC.

Methods

This was a phase 2, single-arm trial of sunitinib and gemcitabine in patients with sarcomatoid or poor-risk RCC. The primary end point was the objective response rate (ORR). Secondary end points included the time to progression (TTP), overall survival (OS), safety, and biomarker correlatives.

Results

Overall, 39 patients had sarcomatoid RCC, and 33 had poor-risk RCC. The ORR was 26% for patients with sarcomatoid RCC and 24% for patients with poor-risk RCC. The median TTP and OS for patients with sarcomatoid RCC were 5 and 10 months, respectively. For patients with poor-risk disease, the median TTP and OS were 5.5 and 15 months, respectively. Patients whose tumors had>10% sarcomatoid histology had a higher clinical benefit rate (ORR plus stable disease) than those with≤10% sarcomatoid histology (P = 0.04). The most common grade 3 or higher treatment-related adverse events included neutropenia (n = 20), anemia (n = 10), and fatigue (n = 7).

Conclusions

These results suggest that antiangiogenic therapy and cytotoxic chemotherapy are an active and well-tolerated combination for patients with aggressive RCC. The combination may be more efficacious than either therapy alone and is currently under further investigation.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号