• Tianci Chai, Yuhan Lin, Mingqiang Kang, and Jiangbo Lin.
• Department of Thoracic Surgery, Fujian Medical University Union Hospital.
• Medicine (Baltimore). 2019 Mar 1; 98 (10): e14646.

BackgroundVideo-assisted thoracoscopic surgery (VATS) is a kind of minimally invasive surgery with the advantages of small surgical incision, less surgical bleeding, and fewer hospitalization days. However, traditional thoracotomy has advantages in lymph node dissection and radical resection of tumors and the benefits of VATS compared with thoracotomy for lung cancer are controversial. This systematic review and meta-analysis will be conducted to evaluate the advantages and disadvantages of the 2 different surgical methods.Methods And AnalysisPubMed (Medline), Embase, Cochrane Central Register of Controlled Trials, and Google Scholar will be searched for relevant randomized controlled trials (RCTs), quasi-RCTs, and Hi-Q (high quality) prospective cohort trials published or unpublished in any language before March 1, 2019. Subgroup analysis will be performed in type of operation, tumor pathological stage, and ethnicity.ResultsThe results of this study will be published in a peer-reviewed journal.ConclusionAs far as we know, this study will be the first time to compare and meta-analyze the efficacy of thoracoscopic lung cancer resection and thoracotomy. This study will provide high-quality and reliable evidence for clinicians' decision-making by comparing published or completed but unpublished trials data. Because of the characteristics of disease and intervention methods, large sample size and RCTs may be insufficient. We will carefully consider the inclusion of small sample RCTs, but this may lead to high heterogeneity and affect the reliability of research results.Prospero Registration NumberCRD42018118427.

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