Segmental Ureterectomy Can Be Performed Safely in Patients with Urothelial Carcinoma of Distal Ureter

Overview

Journal Can Urol Assoc J

Specialty Urology

Date 2018 Nov 27

PMID 30472983

Citations 5

Authors

Zhuo Jia

Yan-Qing Gong

Cui-Jian Zhang

Zheng-Qing Bao

Xue-Song Li

Han Hao

Geng-Yan Xiong

Lei Zhang

Dong Fang

Zhi-Song He

Li-Qun Zhou

Affiliations

Soon will be listed here.

Abstract

Introduction: We aimed to compare oncological outcomes by surgery type (segmental ureterectomy [SU] vs. radical nephroureterectomy [RNU]) in a large cohort of patients with upper tract urothelial carcinoma (UTUC) of the distal ureter.

Methods: We performed a retrospective analysis of 219 patients with UTUC of the distal ureter among 931 patients with UTUC who underwent SU and RNU. Clinicopathological outcomes were evaluated. Cancer-specific survival (CSS), overall survival (OS), local recurrence-free survival (RFS), intravesical recurrence-free survival (IVRFS), contralateral recurrence-free survival, and distal metastasis-free survival were assessed by the Kaplan-Meier method and Cox regression, estimating hazard ratios (HR) and 95% confidence intervals (CIs).

Results: A total of 179 (81.7%) patients underwent RNU and 40 (18.3%) underwent SU: 85 males (47.5%) with RNU and 17 (42.5%) with SU (p=0.568). The median age with RNU and SU was 71 years (range 31-86) and 70 years (range 46-90), respectively (p=0.499). The T stage of the two groups did not differ (p=0.122), nor did mean tumour length (3.35±2.62 vs. 3.25±2.14; p=0.953), grade (p=0.075), tumour necrosis (p=0.634), or followup time (months) (58.1±8.1 vs. 63.7±3.4; p=0.462). The two groups did not differ in CSS (p=0.358) or OS (p=0.206), and surgery type did not predict CSS (HR 0.862; 95% CI 0.469-1.585; p=0.633) or OS (HR 0.764; 95% CI 0.419-1.392; p=0.379). Local RFS was higher with RNU than SU (96.2% vs. 86.0%; p=0.02), but the groups did not differ in IVRFS (p=0.661), contralateral RFS (p=0.183), or distant metastasis-free survival (p=0.078). On multivariate analysis, SU was associated with local RFS (HR 5.069; 95% CI 1.029-24.968; p=0.046) and distant metastasis-free survival (HR 6.497; 95% CI 1.196-35.283; p=0.03). Local RFS was lower with SU than RNU for patients with pT3-4 stage (p=0.006).

Conclusions: Long-term oncological outcomes were equivalent with SU and RNU in patients with UTUC of the distal ureter. SU affected local recurrence survival, especially with advanced tumour stage, and distant metastasis survival.

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