Background: The potential benefits of an approach combining neoadjuvant chemotherapy and surgery in stage IIIA and IIIB NSCLC have to be weighed against a potential increase in postoperative complications. We evaluated the results in terms of postoperative complications and survival in patients with stage III NSCLC who underwent complete surgical treatment after neoadjuvant chemotherapy with two regimens: mitomycin, vinblastine, and cisplatin (MPV) versus gemcitabine and cisplatin (GC).
Methods: From March 1991 to September 2005, 110 patients with stage III NSCLC (86 stage IIIA and 24 stage IIIB) underwent complete surgical treatment after neoadjuvant chemotherapy. Ninety-two patients were men and 18 were women, with a mean age of 59 (range, 39-80) years. The neoadjuvant chemotherapy regimen was MPV in 72 patients and GC in 38.
Results: The overall response (>50%) to chemotherapy was 84%. Postoperative mortality and morbidity were 1.8% and 20%, respectively. Overall 5-year survival was 46%. Minor response to neoadjuvant chemotherapy (<50%) and residual nodal N2 involvement in stage IIIA had an adverse impact on survival (p < 0.05).
Conclusions: Favorable long-term survival was observed after neoadjuvant chemotherapy with MPV and GC regimens in stage IIIA and IIIB NSCLC, with relatively low postoperative mortality and morbidity. Caution should be taken when offering surgical treatment to patients with minor response to induction chemotherapy and residual N2 disease in view of the significantly reduced survival.