Abstract
BackgroundTraditionally, neoadjuvant chemoradiation therapy is followed by resection in patients with locally advanced non-small cell lung cancer (NSCLC). The risks and benefits of this approach are not well defined in patients requiring a sleeve lung resection. In this context, we compare the short- and long-term outcomes of neoadjuvant chemotherapy alone vs chemoradiation therapy followed by sleeve lung resection. MethodsWe used the National Cancer Database to identify locally advanced NSCLC patients who received chemotherapy-alone or chemoradiation therapy in the neoadjuvant setting, followed by a sleeve lung resection, between 2006 and 2017. Our outcomes of interest were 30-day mortality, 90-day mortality, and overall survival. To minimize confounding by indication, we used propensity score adjustment, logistic regression, Kaplan-Meier survival analysis, and Cox proportional hazards models to identify associations. ResultsOf 176 patients undergoing sleeve lung resection, 92 (52.3%) received neoadjuvant chemotherapy-alone, and 84 (47.7%) received neoadjuvant chemoradiation therapy. Patients in both groups were well balanced in age, sex, race, Charlson-Deyo comorbidity index, insurance status, median income, and education (all P > .05). Similarly, the groups were well balanced in histology, tumor location, and stage (all P > .05). Patients receiving neoadjuvant chemoradiation therapy had higher 90-day mortality (11.96% vs 2.38%, P = .015), and there was no difference in overall survival between the neoadjuvant chemotherapy-alone vs chemoradiation therapy cohorts (P = .621). ConclusionsIn this national study of patients with locally advanced resectable NSCLC requiring a sleeve lung resection, neoadjuvant chemoradiation therapy was associated with a 5-fold increase in 90-day mortality without an overall survival benefit over neoadjuvant chemotherapy-alone.
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