Long-term survival in video-assisted thoracoscopic lobectomy vs open lobectomy in lung-cancer patients: a meta-analysis

Video-assistedthoracicsurgery (VATS) lobectomy is an appealing alternative to open lobectomy via thoracotomy for non-small-cell lung cancer. However, there is no clear consensus in regard to the superior approach for long-term outcomes. The data are limited to small series, which precludes further clarification. Meta-analysis of these studies was performed in order to obtain a more objective determination of the oncological feasibility of VATS lobectomy. A systematic review of the PubMed and Embase databases was performed. Twenty observational studies reporting long-term outcomes were included, involving 2106 VATS and 2661 thoracotomy patients. There was an advantage in long-term mortality for patients who underwent VATS vs patients who underwent thoracotomy (meta difference in survival: 5%; 95% CI: 3-6%) with large heterogeneity among studies (Q = 42.6; P-value: 0.001; I-2 = 55.7%). There was no evidence of publication bias. Compared with open lobectomy, VATS lobectomy appears to have improved long-term outcomes.