Abstract
Objective: To assess the oncologic outcomes of radical nephroureterectomy (RUN) combined with adjuvant chemotherapy (ACT) in patients with high risk upper tract urothelial carcinoma (UTUC). Methods: One-hundred-thirty-four individuals with high-risk UTUC who underwent RUN with or without ACT were evaluated. Cox proportional hazard model and Kaplan-Meier analysis were used to determine overall and cancer specific survival in the cohort. Results: The median follow-up duration was 24 months (range: 6-36) in the RUN group (n=61) and 18 months (range: 6-36) in the RUN+ACT group (n=73). Median time of overall survival (OS) and cancer specific survival (CSS) showed much better in RUN+ACT group than in RUN group, but the differences were not reached the significant standard. The further analysis in lymph node positive cohort displayed that median times of oncologic events were prolonged in the RUN+ACT group compared with the RUN group: OS (30.1 mon vs 18.0 mon, P=0.083) and CSS (29.2 mon vs 18.6 mon, P=0.047). Additionally in T3/T4 cohort, the significant growth in the median times of OS (25.2 mon vs 12.6 mon, P=0.038) and CSS (31.3 mon vs 18.9 mon, P=0.044) were observed in combination treatment group. Conclusion: ACT could play the important synergistic role in improving the OS and CSS of RUN treated UTUC patients with lymph node-positive or stage of T3/T4.
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