Objective: There are few reports investigating the potential benefits of preoperative systemic chemotherapy for patients with node-positive upper tract urothelial carcinoma. The purpose of this study was to examine the impact of preoperative systemic chemotherapy on the clinical outcomes of patients with node-positive upper tract urothelial carcinoma treated by radical nephroureterectomy.
Methods: Data were collected on 195 consecutive patients with upper tract urothelial carcinoma treated by radical nephroureterectomy between 1995 and 2010 at a single institute. Of these, 29 patients with node-positive disease but no visceral metastasis were retrospectively evaluated. In patients who underwent preoperative systemic chemotherapy, tumor response, post-therapy pathological downstaging to either residual disease at radical nephroureterectomy or no residual lymph node metastasis (pN0) and toxicity were the endpoints of interest. Overall survival was compared between two groups: those with and without preoperative chemotherapy.
Results: All patients underwent regional lymphadenectomy. Overall, 15 patients (52%) underwent preoperative systemic chemotherapy. Pathological downstaging was achieved in 47%, including pN0, but there was no pathological complete response. Eighty-six percent of the patients with pathological downstaging had no evidence of recurrence. The median overall survivals were 38 and 9 months for patients with and without preoperative systemic chemotherapy, respectively (hazard ratio: 0.26, P = 0.015, log-rank test). There was no significant difference in operative morbidity between the two groups, and no operations were delayed because of preoperative chemotherapy.
Conclusions: The survival of patients who undergo preoperative systemic chemotherapy following radical nephroureterectomy seems to be superior to that of those undergoing radical nephroureterectomy alone. However, to confirm this, prospective randomized studies are needed.