Summary
PURPOSE: The impact of preoperative chemotherapy in patients with upper urinary tract urothelial carcinoma remains poorly investigated. We assessed the rates of pathological complete response (pT0N0/X) and downstaging (pT1N0/X or less) at radical nephroureterectomy after preoperative chemotherapy and evaluated their impact on survival. MATERIALS AND METHODS: This was an international observational study of patients who underwent preoperative chemotherapy and radical nephroureterectomy for high risk upper tract urothelial carcinoma between 2005 and 2017. Multiple imputation of chained equations was applied to account for missing values. Logistic regression analyses were performed to identify predictors of pathological response. Cox proportional hazard regression models were used to estimate
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