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Erschienen in:
01.05.2015 | Urology - Original Paper
Extraurothelial recurrence after radical nephroureterectomy: preoperative predictors and survival
Erschienen in: International Urology and Nephrology | Ausgabe 5/2015
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Objective
To identify the preoperative predictors of extraurothelial recurrence (EUR) after radical nephroureterectomy (RNU) in patients with upper tract urothelial carcinoma (UTUC).
Methods
A single-center series of 238 consecutive patients who were treated with RNU for UTUC was evaluated. Recurrence-free probabilities and cancer-specific survival (CSS) were estimated using the Kaplan–Meier method. Multivariate Cox proportional hazards regression models were used to evaluate the association between various clinicopathological factors and EUR.
Results
The median time to EUR was 17.6 months (range 3–73 months). EUR-free survival rates at 1, 3, 5, and 7 years were 87.8, 75.2, 73.5, and 72.6 %, respectively. In multivariate Cox regression analyses, tumor stage (HR 27.4; 95 % CI 7.83–95.8; p = 0.0001) and lymphovascular invasion (LVI) (HR 1.53; 95 % CI 1.22–3.12; p = 0.01) were independently associated with EUR. In patients with EUR, 5-year CSS estimate was 29.2 %. Tumor stage (HR 14.3; 95 % CI 4.55–45.2; p < 0.001) and EUR (HR 2.7; 95 % CI 1.54–4.73; p = 0.001) were the only independent predictors associated with worse CSS.
Conclusions
EUR significantly affected the prognosis in patients with UTUC managed by RNU. Patient with EUR had a greater probability of having higher tumor stages, higher tumor grades, and positive LVI. Tumor stage and LVI were independently associated with a worse EUR-free survival.