期刊
JOURNAL OF THORACIC ONCOLOGY
卷 12, 期 1, 页码 129-136出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jtho.2016.08.131
关键词
Thymoma; Thymectomy; Minimally invasive; Complete resection; R0
资金
- NCI NIH HHS [P30 CA008748] Funding Source: Medline
Introduction: Minimally invasive thymectomy (MIT) is a surgical approach to thymectomy that has more favorable short-term outcomes for myasthenia gravis than open thymectomy (0T). The oncologic outcomes of MIT performed for thymoma have not been rigorously evaluated. We analyzed determinants of complete (RO) resection among patients undergoing MIT and OT in a large international database. Methods: The retrospective database of the International Thymic Malignancy Interest Group was queried. Chi-square and Wilcoxon rank sum tests, multivariate logistic regression models, and propensity matching were performed. Results: A total of 2514 patients underwent thymectomy for thymoma between 1997 and 2012; 2053 of them (82%) underwent OT and 461 (18%) underwent MIT, with the use of MIT increasing significantly in recent years. The rate of RO resection among patients undergoing OT was 86%, and among those undergoing MIT it was 94% (p < 0.0001). In propensity matched MIT and OT groups (n = 266 in each group); however, the rate of RO resection did not differ significantly (96% in both the MIT and OT groups, p = 0.7). Multivariate analyses were performed to identify determinants of RO resection. Factors independently associated with RO resection were geographical region, later time period, less advanced Masaoka stage, total thymectomy, and the absence of radiotherapy. Surgical approach, whether minimally invasive or open, was not associated with completeness of resection. Conclusions: The use of MIT for resection of thymoma has been increasing substantially over time, and MIT can achieve rates of R0 resection for thymoma similar to those achieved with 0T. (C) 2016 International Association for the Study of Lung Cancer. Published by Elsevier Inc. All rights reserved.
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