• Medicine · Sep 2020

    Meta Analysis

    The prognostic value of tumor architecture in patients with upper tract urothelial carcinoma treated with radical nephroureterectomy: A systematic review and meta-analysis.

    • Hu Zhao, Lijin Zhang, Bin Wu, Zhenlei Zha, Jun Yuan, Yuefang Jiang, and Yejun Feng.
    • Department of Urology, Affiliated Jiang-yin Hospital of the Southeast University Medical College, Jiang-yin 214400, China.
    • Medicine (Baltimore). 2020 Sep 11; 99 (37): e22176.

    Background And PurposeThere is a lack of consensus regarding the prognostic value of tumor architecture (sessile vs. papillary) in upper tract urothelial carcinoma (UTUC) treated with radical nephroureterectomy (RNU). The aim of the present study was to analyze the current evidence regarding the prognostic role of tumor architecture in patients undergoing RNU for UTUC through a systematic review and meta-analysis.MethodsAccording to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines, a literature search in PubMed, Web of Science, Wanfang, and China National Knowledge Infrastructure (CNKI) databases was performed for citations published prior to February 2020. Cumulative analyses of hazard ratios (HRs) and their corresponding 95% confidence intervals (95% CIs) were conducted for the survival outcomes by Stata 12.0 software.ResultsWe retrieved 17 studies (including 8,146 patients) evaluating the effect of tumor architecture on oncologic outcomes in patients treated with RNU. According to our final results, sessile tumor architecture had a significant correlation with worse cancer-specific survival (CSS) (HR = 1.43, 95% CI: 1.31-1.55, P < .001), overall survival (OS) (HR = 1.40, 95% CI: 1.24-1.58, P < .001), recurrence-free survival (RFS) (HR = 1.43, 95% CI: 1.35-1.53, P < .001), and progression-free survival (PFS) (HR = 1.27, 95% CI: 1.11-1.45, P = 0.001). The funnel plot test indicated that there was no significant publication bias in the meta-analysis. Besides, the findings of this study were found to be reliable by our sensitivity and subgroup analysis.ConclusionsSessile tumor architecture correlates with a significantly worse survival outcome compared with papillary tumor architecture, and it can be used as a valuable biomarker for monitoring prognoses of UTUC patients.

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