scholarly journals Construction of a Survival Prediction Model for High-and Low-Grade Upper Tract Urothelial Carcinoma After Tumor Resection Based on "SEER Database": A Retrospective and Multicenter Study

2021 ◽  
Author(s):  
Changgang Sun ◽  
Mengmeng Wang ◽  
Xin Ren ◽  
Ge Wang ◽  
Xiaomin Sun ◽  
...  
Keyword(s):  
Urothelial Carcinoma ◽  
Tumor Resection ◽  
Upper Tract Urothelial Carcinoma ◽  
Validation Dataset ◽  
Survival Prediction ◽  
Low Grade ◽  
Seer Database ◽  
Discriminative Ability ◽  
Internal Validation ◽  
Upper Tract

Abstract Background: There are difffferences in survival between high-and low-grade Upper Tract Urothelial Carcinoma (UTUC). Our study aimed to develop a nomogram to predict overall survival (OS) of patients with high- and low- grade UTUC after tumor resection, and to explore the difffference between high-and low-grade patients. Methods: Patients confifirmed to have UTUC between 2004 and 2015 were selected from the Surveillance, Epidemiology and End Results (SEER) database. The UTUCs were identifified and classifified as high- and low-grade, and 1-, 3-and 5-year nomograms were established. The nomogram was then validated using the Chinese multicenter dataset (patients diagnosed in Shandong, China between January 2010 and October 2020). Findings: In the high-grade UTUC patients, nine important factors related to survival after tumor resection were identifified to construct nomogram. The ability of the model to distinguish between UTUC grades was verifified using two datasets (internal validation dataset, C index(95% CI):0.729[0.707-0.754];Chinese multicenter validation dataset: C index(95% CI):0.763[0.656-0.869]).On the other hand, Two independent predictors were identifified to construct nomogram of low-grade UTUC. The C index was 0.714 (95% CI: 0.671-0.758) for the training set,0.731(95% CI:0.670-0.791) for the internal validation dataset, and 0.825 (95% CI:0.689-1.00) for the Chinese multicenter dataset. Encouragingly, the nomogram was clinically useful and had a good discriminative ability to identify patients at high risk. Interpretation: We constructed a nomogram and a corresponding risk classifification system predicting the OS of patients with an initial diagnosis of high-and low-grade UTUC.

scholarly journals Construction of a survival prediction model for high-and low -grade UTUC after tumor resection based on “SEER database”: a multicenter study

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mengmeng Wang ◽  
Xin Ren ◽  
Ge Wang ◽  
Xiaomin Sun ◽  
Shifeng Tang ◽  
...  
Keyword(s):  
Tumor Resection ◽  
Training Dataset ◽  
Validation Dataset ◽  
Survival Prediction ◽  
Low Grade ◽  
Seer Database ◽  
Discriminative Ability ◽  
Internal Validation ◽  
The Difference ◽  
Good Calibration

Abstract Background There are differences in survival between high-and low-grade Upper Tract Urothelial Carcinoma (UTUC). Our study aimed to develop a nomogram to predict overall survival (OS) of patients with high- and low-grade UTUC after tumor resection, and to explore the difference between high- and low-grade patients. Methods Patients confirmed to have UTUC between 2004 and 2015 were selected from the Surveillance, Epidemiology and End Results (SEER) database. The UTUCs were identified and classified as high- and low-grade, and 1-, 3- and 5-year nomograms were established. The nomogram was then validated using the Chinese multicenter dataset (patients diagnosed in Shandong, China between January 2010 and October 2020). Results In the high-grade UTUC patients, nine important factors related to survival after tumor resection were identified to construct nomogram. The C index of training dataset was 0.740 (95% confidence interval [CI]: 0.727–0.754), showing good calibration. The C index of internal validation dataset was 0.729(95% CI:0.707–0.750). On the other hand, Two independent predictors were identified to construct nomogram of low-grade UTUC. The C index was 0.714 (95% CI: 0.671–0.758) for the training set,0.731(95% CI:0.670–0.791) for the internal validation dataset. Encouragingly, the nomogram was clinically useful and had a good discriminative ability to identify patients at high risk. Conclusion We constructed a nomogram and a corresponding risk classification system predicting the OS of patients with an initial diagnosis of high-and low-grade UTUC.

Risk factors for bladder cancer recurrence survival in patients with upper-tract urothelial carcinoma

2018 ◽  
Vol 104 (6) ◽  
pp. 451-458 ◽  
Author(s):  
Yu-Peng Wu ◽  
Yun-Zhi Lin ◽  
Min-Yi Lin ◽  
Ting-Ting Lin ◽  
Shao-Hao Chen ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Urothelial Carcinoma ◽  
Cancer Recurrence ◽  
Cox Proportional Hazards Model ◽  
Upper Tract Urothelial Carcinoma ◽  
Intravesical Therapy ◽  
Low Grade ◽  
High Grade ◽  
Upper Tract ◽  
Bladder Cancer Recurrence

Purpose: The aim of this work was to investigate the predictive factors for bladder cancer recurrence survival (BCRS) in patients with upper-tract urothelial carcinoma (UTUC). Methods: We selected patients with UTUC who underwent segmental ureterectomy (Su) or nephroureterectomy (Nu) from 2004 to 2013 from the Surveillance, Epidemiology, and End Results (SEER) database. Patients with a history of intravesical therapy for bladder cancer and bladder cancer prior to the diagnosis of UTUC were excluded. We used Kaplan-Meier analysis, log-rank tests, and Cox proportional hazards model to compare overall survival, cancer-specific survival, and BCRS. Results: In a cohort of 1,454 patients, 169 (11.6%) had low-grade tumors and 1,285 (88.4%) had high-grade tumors; 239 (16.4%) underwent Su and 1,215 (83.6%) underwent Nu. We found that T4 grade (hazard ratio [HR] = 6.216; 95% confidence interval [CI], 3.197-12.087) and ureteral tumors (HR = 1.764; 95% CI, 1.173-2.652) were predictors of shorter BCRS, whereas Nu (HR = 0.608; 95% CI, 0.388-0.953) predicted longer BCRS. Five-year BCRS rates were low-grade tumors: 94.1%, high-grade tumors: 85.4% (p = 0.038); plus Su: 82.9%, and Nu: 87.6% (p = 0.016). Conclusions: Use of Su should be more selective for high-grade tumors, as it correlates with shorter BCRS. Tumors located in the ureter are associated with shorter BCRS than those located in the renal pelvis.

scholarly journals Clinical and prognostic value of preoperative hydronephrosis in upper tract urothelial carcinoma: a systematic review and meta-analysis

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2144 ◽  
Author(s):  
Yuejun Tian ◽  
Yuwen Gong ◽  
Yangyang Pang ◽  
Zhiping Wang ◽  
Mei Hong
Keyword(s):  
Urothelial Carcinoma ◽  
Prognostic Value ◽  
Meta Analysis ◽  
Upper Tract Urothelial Carcinoma ◽  
Lymph Node Status ◽  
Low Grade ◽  
Free Survival ◽  
Upper Tract ◽  
Tumor Stages ◽  
Risk Of Cancer

Background.Epidemiological studies have reported various results relating preoperative hydronephrosis to upper tract urothelial carcinoma (UTUC). However, the clinical significance and prognostic value of preoperative hydronephrosis in UTUC remains controversial. The aim of this study was to provide a comprehensive meta-analysis of the extent of the possible association between preoperative hydronephrosis and the risk of UTUC.Methods.We searched PubMed, ISI Web of Knowledge, and Embase to identify eligible studies written in English. Summary odds ratios (ORs) or hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated using fixed-effects or random-effects models.Results.Nineteen relevant studies, which had a total of 5,782 UTUC patients enrolled, were selected for statistical analysis. The clinicopathological and prognostic relevance of preoperative hydronephrosis was evaluated in the UTUC patients. The results showed that all tumor stages, lymph node status and tumor location, as well as the risk of cancer-specific survival (CSS), overall survival (OS), recurrence-free survival (RFS) and metastasis-free survival (MFS) were significantly different between UTUC patients with elevated preoperative hydronephrosis and those with low preoperative hydronephrosis. High preoperative hydronephrosis indicated a poor prognosis. Additionally, significant correlations between preoperative hydronephrosis and tumor grade (high grade vs. low grade) were observed in UTUC patients; however, no significant difference was observed for tumor grading (G1 vs. G2 + G3 and G1 + G2 vs. G3). In contrast, no such correlations were evident for recurrence status or gender in UTUC patients.Conclusions.The results of this meta-analysis suggest that preoperative hydronephrosis is associated with increased risk and poor survival in UTUC patients. The presence of preoperative hydronephrosis plays an important role in the carcinogenesis and prognosis of UTUC.

The degree of preoperative hydronephrosis to predict pathologic features and oncologic outcomes in high-grade upper tract urothelial carcinoma.

2014 ◽  
Vol 32 (4_suppl) ◽  
pp. 525-525
Author(s):  
Oussama M. Darwish ◽  
Laura-Maria Krabbe ◽  
Paul H. Chung ◽  
Mary Elizabeth Westerman ◽  
Aditya Bagrodia ◽  
...  
Keyword(s):  
Urothelial Carcinoma ◽  
Advanced Disease ◽  
Upper Tract Urothelial Carcinoma ◽  
Preoperative Imaging ◽  
Lymph Node Status ◽  
Low Grade ◽  
High Grade ◽  
Upper Tract ◽  
Oncological Outcomes ◽  
The Impact

525 Background: There have been multiple reports implicating the role of hydronephrosis (HN) as a predictor of outcome in patients diagnosed with upper tract urothelial carcinoma (UTUC). However, this was done in mixed populations (low-/high-grade) and degree of HN (DOH) was not taken into account. We evaluated the impact of severity of hydronephrosis on systemic and bladder relapse in patients with UTUC. Methods: We retrospectively reviewed the records of 141 patients with localized UTUC that underwent extirpative surgery. Preoperative imaging was used to evaluate ipsilateral DOH. We analyzed the association between DOH (none/mild vs. moderate/severe), pathological findings and oncological outcomes in high-grade vs. low-grade patients. Bladder recurrence was assessed separately from local or systemic (L/S) recurrence. Results: High-grade UTUC was present in 80% of patients, 35% had muscle-invasive disease (≥pT2), and 29% had non-organ-confined disease. At a median follow-up of 34 months (range, 1-149), 35% of patients experienced intravesical recurrence, 20% developed L/S recurrence, and 17% died of UTUC. No difference in outcomes was seen between patients without HN and mild HN. DOH was none/mild in 55% and moderate/severe in 45% of cases. In patients with high-grade UTUC, moderate/severe HN was associated with advanced pathologic stage (p<0.001) and positive lymph node status (p=0.01). On Kaplan-Meier analysis, DOH was a predictor of L/S recurrence-free survival (RFS) (HR 5.5, p=0.019) and cancer-specific survival (CSS) (HR 5.2, p=0.022) but not intravesical recurrence. On multivariable analysis with preoperatively known factors controlling for grade and tumor location, DOH was independently associated with L/S RFS (HR 2.8, p=0.016) and CSS (HR 2.5, p=0.044). Conclusions: Moderate/severe HN was associated with features of advanced disease and predicted worse oncological outcomes in patients with high-grade UTUC. Since preoperative imaging is a routinely available diagnostic tool, this can serve as a surrogate parameter for advanced disease and can help to counsel patients towards preoperative chemotherapy and radical surgery.

scholarly journals Review of Topical Treatment of Upper Tract Urothelial Carcinoma

2009 ◽  
Vol 2009 ◽  
pp. 1-6 ◽  
Author(s):  
Kenneth G. Nepple ◽  
Fadi N. Joudi ◽  
Michael A. O'Donnell
Keyword(s):  
Urothelial Carcinoma ◽  
Topical Treatment ◽  
Solitary Kidney ◽  
Tumor Burden ◽  
Upper Tract Urothelial Carcinoma ◽  
Major Surgery ◽  
Low Grade ◽  
Poor Renal Function ◽  
Upper Tract ◽  
Select Group

A select group of patients with upper tract urothelial carcinoma may be appropriate candidates for minimally invasive management. Organ-preserving endoscopic procedures may be appropriate for patients with an inability to tolerate major surgery, solitary kidney, bilateral disease, poor renal function, small tumor burden, low-grade disease, or carcinoma in situ. We review the published literature on the use of topical treatment for upper tract urothelial carcinoma and provide our approach to treatment in the office setting.

scholarly journals A Diagnostic Nomogram of Pathologic Grade for Preoperative Risk Stratification in Upper Tract Urothelial Carcinoma

2020 ◽  
Vol 14 ◽  
pp. 117955492092766
Author(s):  
Runzhuo Ma ◽  
Haizhui Xia ◽  
Min Qiu ◽  
Liyuan Tao ◽  
Min Lu ◽  
...  
Keyword(s):  
Urothelial Carcinoma ◽  
Tumor Grade ◽  
Upper Tract Urothelial Carcinoma ◽  
Calibration Plot ◽  
Urinary Cytology ◽  
Low Grade ◽  
High Grade ◽  
Pathological Grade ◽  
Upper Tract ◽  
Better Than

Background: To develop a novel nomogram to improve the preoperative diagnosis of pathological grade of upper tract urothelial carcinoma (UTUC). Methods: Retrospective study was conducted with 245 patients with UTUC treated by radical nephroureterectomy from 2002 to 2016. Of the cohort, 57.6% received ureteroscopic (URS) biopsy and 35.9% received urine cytology examination. Preoperative clinical characteristics and examination results were collected. Final pathological grade was diagnosed by postoperative pathology. Univariable and multivariable binary logistic regressions were applied to establish a preoperative predictive model for tumor grade, and significant factors were included in the nomogram. The area under curve (AUC) was used to show the predictive efficacy, and the calibration plot was drawn for validation. Results: Of the 245 patients, 72.7% were diagnosed with pathological high-grade disease. Age (odds ratio [OR] = 1.03, P = .039), sessile (OR = 3.86, P = .021), positive urinary cytology (OR = 6.87, P = .035), and biopsy high-grade result (OR = 10.85, P < .001) were independent predictors for pathological high-grade disease. The predictive nomogram containing these factors achieved an AUC of 0.78, which was significantly better than URS biopsy alone (AUC = 0.62, P = .003) in the whole cohort. In the URS biopsy subgroup, the nomogram achieved an AUC of 0.79, better than biopsy alone (AUC = 0.76), but was not statistically significant ( P = .431). When the cutoff value of the nomogram was set at 0.64, the sensitivity of detecting a high-grade lesion versus low-grade lesion was 80.3%, better than that of URS biopsy alone (sensitivity = 65.7%). Conclusions: Advanced age, sessile, positive urinary cytology, and biopsy high-grade were independent predictors of pathological high-grade disease in patients with UTUC. A nomogram containing these factors can improve diagnostic accuracy, potentially reducing the risk of “undergrading” by URS biopsy.

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