Prognostic impact of bulky mediastinal lymph nodes (N2>2.5 cm) in patients with locally advanced non-small-cell lung cancer (LA-NSCLC) treated with platinum-based induction chemotherapy
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文摘
A group of 70 patients with locally advanced non-small-cell lung cancer (LA-NSCLC), treated in different phase II–III trials with platinum-based chemotherapy in two institutions, have been evaluated to identify potential baseline prognostic factors predicting their survival. The eligibility criteria were patients with stage IIIA (N2)-IIIB, Eastern Cooperative Oncology Group performance status 0.1 and less than 5 % weight loss. All 37 patients with stage IIIA(N2) were treated with platinum-based induction chemotherapy followed by surgery plus radiotherapy if no progression was observed. The other 33 patients with stage IIIB were treated with platinum-based induction chemotherapy followed by conventional fractionation radiotherapy if no progression was observed. The overall response rate to induction chemotherapy was 40 % . Median survival of the 70 patients was 13 months, with a 4-year survival of 15 % . At univariate analysis, two prognostic factors correlated with survival: partial or complete response to induction chemotherapy (P<0.00001) and bulky mediastinal lymph nodes (N2>2.5 cm) (P
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