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Medicina (Buenos Aires)
Print version ISSN 0025-7680On-line version ISSN 1669-9106
Abstract
BUERO, Agustín et al. Outcomes of surgical treatment for thymic epithelial neoplasms. Medicina (B. Aires) [online]. 2022, vol.82, n.3, pp.376-382. ISSN 0025-7680.
Thymic epithelial tumors are a group of rare neoplasms of the mediastinum. When resectable, complete resection is considered the gold standard for any stage. The primary endpoint was to evaluate overall survival and disease-free survival of patients with thymus epithelial tumors who underwent surgical treatment. The secondary endpoint was to evaluate and compare the overall survival according to: resection type (complete vs. incomplete), Masaoka-Koga stage and tumor histology according to WHO classification. This is a descriptive observational study from January 2004 to December 2020, in which 42 patients with a postoperative histopathological diagnosis of thymic epithelial tumours were included. Thirty-nine were thymomas (92.9%) and 3 were thymic carcinomas (7.1%). In all patients a total thymectomy was performed. The median follow-up was 63.5 months (IQR 32-97.5). The estimated overall survival at five and ten years was 87% (95% CI, 0.69-0.95) and 78% (95% CI, 0.5-0.92), respectively. Estimated disease-free survival at five and ten years was 90% (95% CI, 0.74-0.96). Patients who underwent complete resection and with early Masaoka-Koga stages had superior overall survival compared to incomplete resections and advanced Masaoka-Koga stages (p = 0.0097 and p = 0.0028, respectively). We found no differences in terms of survival between histological subtypes due to a low number of patients in the thymic carcinoma group.
Keywords : Thymic epithelial neoplasms; Mediastinum; Survival.