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- W2006372386 abstract "Introduction Treatment of technically operable, medically fit locoregionally advanced non-small cell lung cancer (NSCLC) patients is a controversial therapeutic challenge. Our group routinely uses a trimodality approach. Recent advances in radiotherapy allow for improved tumor targeting and daily patient positioning. We hypothesized that these technologies would improve pathologic response rates. We analyzed consecutively treated stage IIIA/IIIB NSCLC patients undergoing chemoradiotherapy before major lung resection, with particular attention paid to the impact of advanced technologies. Methods Locoregionally advanced NSCLC patients (N2) staged in a multidisciplinary forum with mediastinoscopy were planned to receive platinum-based chemotherapy and 60 Gy and major lung resection. Four-dimensional CT (4DCT) and image-guided radiotherapy (IGRT) were used as available. Survival endpoints were estimated using the Kaplan–Meier method and compared using the log-rank test. Multivariate analysis was performed using Cox proportional hazards models. Results We identified 53 patients from 2/1999 to 2/2010. Median RT dose was 59 Gy. 68% underwent lobectomy. Forty-three patients were downstaged pathologically (81%), 38 experienced mediastinal sterilization (72%), and 21 (40%) had complete pathologic response (pCR). 1 and 2 year OS were 85.5% and 61.6%. Superior OS and DFS were associated with nodal downstaging and mediastinal sterilization (pN0). Treatment with IGRT/4DCT in 10 patients resulted in high rates of nodal downstaging (100% vs 77%, p = 0.0452), mediastinal sterilization (90% vs 67%, p = 0.0769), and pCR (60% vs 35%, p = 0.0728). Conclusions In selected patients, definitive dose CRT followed by major lung resection results in promising DFS and OS. The use of advanced radiotherapy techniques (4DCT and IGRT) appears to result in promising pathologic response rates." @default.
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- W2006372386 date "2011-12-01" @default.
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- W2006372386 title "Pathologic response rates following definitive dose image-guided chemoradiotherapy and resection for locally advanced non-small cell lung cancer" @default.
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- W2006372386 doi "https://doi.org/10.1016/j.lungcan.2011.05.003" @default.
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