7579 Background: This phase II clinical study was conducted to evaluate the effectiveness of the association of extrapleural pneumonectomy followed by radiation therapy in patients with potentially resectable malignant pleural mesothelioma (MPM). Methods: Eligible patients had histologically proven epithelial or mixed MPM with clinical stage T1–3, N0–2, M0 disease considered to be completely resectable and a WHO performance status of 0 or 1. Surgery had to consist of a complete extrapleural pneumonectomy including resection of pericardium and diaphragm. Postoperative radiotherapy (40 Gy) was delivered through anterior and posterior fields, with a 10 to 20 Gy boost dose if necessary. Results: Thirty seven patients were included in this study. Extrapleural pneumonectomy was completed in 35 patients. Overall hospital mortality was 5,7 %. Major post operative complications were: 3 acute lung injury, 1 bronchopleural fistula, 1 stroke, 1 chylothorax and one diaphragmatic patch dehiscence. IMIG post-operative staging was: stage II = 5 patients; stage III = 25 patients; stage IV = 5 patients. Adjuvant radiation was administered to 29 patients. Survival for the 35 patients with complete resection was 47 ± 8 % at 2 years. Median overall survival time was 22 months. Survival without recurrence was 37 ± 8 % at 2 years. Median time to progression was 15 months. Locoregional recurrence is the most common form of relapse. Conclusions: In the era of surgical neoadjuvant therapy in MPM treatment, extrapleural pneumonectomy followed by radiation therapy in patients with resectable epithelial or mixed MPM can achieve acceptable results. No significant financial relationships to disclose.
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