Thoracoscopic Versus Open Lobectomy After Induction Therapy for Nonsmall Cell Lung Cancer: New Study Results and Meta-analysis.

Abstract

The use of video-assisted thoracoscopic surgery (VATS) lobectomy has become a mainstay of modern thoracic surgery practice and the technique of choice for resection of early-stage lung cancers. However, the benefits of VATS following induction therapy are yet to be clarified. This study aims to assess whether VATS lobectomy achieves similar perioperative and oncologic outcomes compared to thoracotomy for nonsmall cell lung cancer after induction therapy. We retrospectively reviewed the outcomes of 72 patients who underwent lung lobectomy after induction therapy in our institution from January 2017 to January 2020. Subsequently, we carried out a comprehensive literature search and pooled our results with available data from previously published studies to perform a meta-analysis. VATS was associated with reduced intraoperative blood loss (P=0.05) and less perioperative complications (P=0.04) in our local institution. The meta-analysis comprised nine studies. A total of 943 patients underwent VATS and 2827 patients underwent open lobectomy. VATS was associated with significant shorter surgery duration (P<0.0001), shorter chest-tube drainage duration (P<0.0001), and shorter hospital stays (P<0.0001). Furthermore, there was significantly less perioperative complications (P=0.006) and less intraoperative blood loss (P=0.036) in the VATS group. However, there were no significant differences in 3-y overall survival and 3-y disease-free survival rates. In some selected patients undergoing induction therapy, VATS lobectomy could achieve equivalent perioperative outcomes to thoracotomy but evidence is lacking on oncologic outcomes. Further trials with a focus on oncologic outcomes and longer follow-up are required.