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[Trimodal Therapy for Stage IIIA-B NSCLC Involving High Dose Neoadjuvant Chemoradiotherapy. Is Surgery a Rational
Aris Koryllos1, Corinna Ludwig1, Walburga Engel-Riedel2
1Klinik für Thoraxchirurgie, Lungenklinik Köln-Merheim, Lehrstuhl für Thoraxchirurgie Universität Witten Herdecke, Kliniken der Stadt Köln gGmbH, Deutschland.
Abstract:
Introduction Stage III non-small cell lung cancer (NSCLC) and its possible multimodal therapy present a challenge to the responsible oncologist, chest surgeon and radiologist. The aim of the present retrospective study was to analyse and evaluate the treatment algorithm in our hospital for patients with stage III NSCLC (intention to treat). We compared an aggressive treatment regime with primary trimodal therapy (high dose radiochemotherapy and resection), independently of "multilevel" N2 or "single level" N3 status. These results were then compared with a historical group of our patients who solely received simultaneous radiochemotherapy (bimodal therapy). Materials and Methods Within the period of the study, 156 patients were diagnosed with stage III NSCLC and treated with trimodal therapy. The median age was 71 years. 103 patients (60%) were male, 53 (34%) female. In the group with bimodal therapy, 102 patients were evaluated. Results After radiological restaging and checking functional resectability, 90 patients (57.7%) in the trimodal therapy group received secondary resection, including 37 (41.1%) lobectomies/bilobectomies, 37 (41.1%) sleeve lobectomies, 13 (14.4%) pneumonectomies and 3 (3.3%) segmentectomies (for severely restricted pulmonary function). The median survival time in the trimodal therapy group was 535 days and in the bimodal group 388 days; this difference was not statistically significant (p = 0.1377). Finally the 5-year survival after actual therapy was performed ("as-treated trimodally" vs. "as-treated bimodally"). The median survival time was then 807 days for trimodal therapy and 427 days for bimodal therapy. Conclusion High dose neoadjuvant radiochemotherapy followed by secondary resection is still a valuable option for selected patients with stage III NSCLC. However, this retrospective analysis failed to find a statistically significant survival advantage for the "intention-to-treat" trimodal patients.
