scholarly journals Does Xylinas’ nomogram accurately predict intravesical recurrence risk after radical nephroureterectomy for primary upper urinary tract urothelial carcinoma when applied to Asian populations?

2020 ◽  
Author(s):  
Shicong Lai ◽  
Pengjie Wu ◽  
Tongxiang Diao ◽  
Samuel Seery ◽  
Jianyong Liu ◽  
...  
Keyword(s):  
Urinary Tract ◽  
Urothelial Carcinoma ◽  
External Validation ◽  
Upper Urinary Tract ◽  
Recurrence Free Survival ◽  
Full Model ◽  
Radical Nephroureterectomy ◽  
Free Survival ◽  
Asian Populations ◽  
Urinary Tract Urothelial Carcinoma

Abstract Objective To validate a prognostic nomogram (Xylinas’ nomogram) for intravesical recurrence after radical nephroureterectomy for primary upper urinary tract urothelial carcinoma patients of Asian descent. Methods Clinicopathological and survival data from 243 primary urinary tract urothelial carcinoma patients who underwent radical nephroureterectomy with bladder cuff excision between January 2004 and May 2017 were collated. Univariate and multivariable Cox regression analyses were performed to identify independent risk factors associated with intravesical recurrence-free survival. External validation was determined using regression coefficients abstracted from previously published data. Performance was then quantified through calibration and discrimination, according to concordance indexes (c-index) in receiver operating characteristic curves. Results 163 patients met our eligibility criteria and were finally included in this study. At a median follow-up of 60 months, intravesical recurrence occurred in 29.4% (n = 48). Multivariable analysis revealed that being male, ureteral tumor location, tumor multifocality and previous bladder cancer were independent prognostic factors of intravesical recurrence-free survival. When Xylinas’ nomogram was applied to our cohort, the discriminatory power was found to be roughly equivalent with a c-index of 68.3% for the reduced model and 68.4% for the full model. Calibration plots also revealed intravesical recurrence predictions at 3, 6, 12, 18, 24 and 36 months had relative concordance. Contrasting the respective performances of the reduced and full model suggests there is no significant difference between the two (all P > 0.05). Conclusions This nomogram appears accurate at predicting intravesical recurrence after radical nephroureterectomy for primary urinary tract urothelial carcinoma in Asian populations. However, it remains necessary to data mine for unknown prognostic factors for optimization. Further external validation is required across larger, ethically diverse populations before applying this nomogram in clinical practice.

scholarly journals Comparison of oncologic and functional outcomes between radical nephroureterectomy and segmental ureterectomy for upper urinary tract urothelial carcinoma

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tae Heon Kim ◽  
Chung Un Lee ◽  
Minyong Kang ◽  
Hwang Gyun Jeon ◽  
Byong Chang Jeong ◽  
...  
Keyword(s):  
Urinary Tract ◽  
Urothelial Carcinoma ◽  
Functional Outcomes ◽  
Upper Urinary Tract ◽  
Rank Test ◽  
Radical Nephroureterectomy ◽  
Free Survival ◽  
Significant Difference ◽  
Segmental Ureterectomy ◽  
Urinary Tract Urothelial Carcinoma

AbstractThis study aims to compare oncologic and functional outcomes after radical nephroureterectomy (RNU) and segmental ureterectomy (SU) in patients with upper urinary tract urothelial carcinoma (UTUC). We retrospectively collected data on patients who underwent either RNU or SU of UTUC. Propensity score matching was performed among 394 cases to yield a final cohort of 40 RNU and 40 SU cases. Kaplan–Meier analysis and the log-rank test were used to compare overall survival (OS), cancer-specific survival (CSS), progression-free survival (PFS), and intravesical recurrence-free survival (IVRFS) between the groups. We also compared the change in postoperative estimated glomerular filtration rate (eGFR). There was no significant difference in terms of CSS, PFS, and IVRFS between the RNU and SU groups, but the RNU group had a better OS than the SU group (p = 0.032). Postoperative eGFR was better preserved in the SU group than in the RNU group (p < 0.001). SU provides comparable CSS, PFS, and IVRFS for patients with UTUC compared to RNU, even in patients with advanced-stage and/or high-grade cancer. Further, SU achieves better preservation of renal function.

scholarly journals Combination of pembrolizumab and BCG treatment after endoscopic ablation of high-risk superficial upper urinary tract urothelial carcinoma in patients not candidates for radical nephroureterectomy: protocol for phase-II study

BMJ Open ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. e027066
Author(s):  
Marcus L Jamil ◽  
Mustafa Deebajah ◽  
Akshay Sood ◽  
Shaheen Alanee
Keyword(s):  
Urinary Tract ◽  
High Risk ◽  
Urothelial Carcinoma ◽  
Phase Ii ◽  
Upper Urinary Tract ◽  
Fixed Dose ◽  
Radical Nephroureterectomy ◽  
Safety And Efficacy ◽  
Muscle Invasive ◽  
Urinary Tract Urothelial Carcinoma

IntroductionThe treatment standard for high-risk upper urinary tract urothelial carcinoma (UUTUC) is radical nephroureterectomy. However, some patients may be unfit or unwilling, and in such patients the available alternatives are suboptimal. Therapies targeting the programmed death (PD) pathway have shown promise in urothelial carcinom (UC). We designed the current study to determine the safety and efficacy of administering MK-3475 (a monoclonal antibody targeting interaction between PD-1 and its ligand) in combination with bacillus Calmette-Guerin (BCG) in high-risk non-muscle invasive UUTUC patients.MethodsThis represents a single-centre phase-II efficacy study of MK-3475 therapy in combination with BCG for subjects, 18 years of age or older, with pathologically documented non-muscle invasive high-risk UUTUC unfit or unwilling to be treated with radical nephroureterectomy. Twenty subjects will be enrolled; patients will receive treatment with 200 mg of MK-3475 every 21 days, starting 2 weeks from the initial endoscopic resection and continuing for 6 weeks after the final dose of BCG. The primary objective is to determine the safety and efficacy of administering MK-3475 at a fixed dose of 200 mg every 3 weeks in conjunction with intrapelvic BCG. Secondary objectives include 19 week and the 3, 12 and 24-month post-treatment completion complete response and progression-free rate assessments.Ethics and disseminationThe study has been approved by the Institutional Review Board of the Henry Ford Hospital. The results of this study will be published in a peer-reviewed journal and presented at a scientific conference.Trial registration numberNCT03345134

scholarly journals Predictive Value of Preoperative Positive Urine Cytology for Development of Bladder Cancer After Nephroureterectomy in Patients With Upper Urinary Tract Urothelial Carcinoma: A Prognostic Nomogram Based on a Retrospective Multicenter Cohort Study and Systematic Meta-Analysis

2021 ◽  
Vol 11 ◽  
Author(s):  
Bo Fan ◽  
Yuanbin Huang ◽  
Shuang Wen ◽  
Qiliang Teng ◽  
Xinrui Yang ◽  
...  
Keyword(s):  
Cohort Study ◽  
Urinary Tract ◽  
Meta Analysis ◽  
Upper Urinary Tract ◽  
Urine Cytology ◽  
Biological Behavior ◽  
Recurrence Free Survival ◽  
Free Survival ◽  
Positive Urine ◽  
Urinary Tract Urothelial Carcinoma

BackgroundUpper urinary tract urothelial carcinoma (UUT-UC) is a rare and severe urinary malignancy. Several studies have explored the relationship between preoperative urine cytology and intravesical recurrence (IVR) in patients with UUT-UC. However, the results of these studies are controversial or even contradictory, and investigations with UUT-UC patients in northeast China are rare.MethodsWe first estimated the prognostic significance of preoperative urine cytology in the outcomes of intravesical recurrence in 231 UUT-UC patients (training cohort = 142, validation cohort = 89) after radical nephroureterectomy (RNU) by the nomogram model. Subsequently, we quantitatively combined our results with the published data after searching several databases to assess whether preoperative positive urine cytology was associated with poor intravesical recurrence-free survival and a high risk of tumor malignant biological behavior.ResultsFirstly, the multicenter retrospective cohort study demonstrated that preoperative positive urine cytology correlated with poor intravesical recurrence-free survival and can serve as significant independent predictors of IVR by Kaplan–Meier curves and Cox regression analysis. The construction of the nomogram demonstrated that predictive efficacy and accuracy were significantly improved when preoperative urine cytology was combined. Meanwhile, meta-analysis showed that preoperative positive urine cytology was associated with a 49% increased risk of IVR. In the subgroup analysis by region, study type, and sample size, the pooled hazard ratios (HRs) were statistically significant for the Japan subgroup (HR 1.32), China subgroup (HR 1.88), cohort study subgroup (HR 1.45), and the single-arm study subgroup (HR 1.63).ConclusionsPreoperative urine cytology was validated as a potential predictor of intravesical recurrence in patients with UUT-UC after RNU, although these results need to be generalized with caution. Large, prospective trials are required to further confirm its significance in prognosis and tumor malignant biological behavior.

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