Comparison of efficacy and safety of hybrid video-assisted thoracoscopic surgery vs. thoracotomy sleeve lobectomy for non-small cell lung cancer: a propensity score matching study.

Background:It is unclear whether hybrid video-assisted thoracoscopic surgery (VATS) sleeve lobectomy (SL) could be an alternative to thoracotomy SL for non-small cell lung cancer (NSCLC) treatment. The aim of the study is to investigate the safety and efficacy of hybrid VATS SL. Methods:We collected 112 patients who received hybrid VATS SL or thoracotomy SL for primary treatment of NSCLC at Liaoning Cancer Hospital & Institute from November 2016 to September 2021. Perioperative and survival data were collected, and retrospective analysis was conducted on 91 thoracotomy and 21 hybrid VATS SL patients to evaluate the safety and efficacy of two approaches. Propensity score matching (PSM) was used to minimize selection bias. The Kaplan-Meier method was applied to compare overall survival (OS) and recurrence-free survival (RFS). Follow-up data were obtained by outpatient clinical visit and nurse-led telephone. Results:A total of 112 patients were included in this study, including thoracotomy patients (n=91) and hybrid VATS patients (n=21). In the non-match analysis, the baseline data of patients was similar between the two groups, except regarding the receipt of neoadjuvant therapy (P=0.087). After PSM (2:1), a total of 39 thoracotomy patients and 19 hybrid VATS patients were enrolled. The baseline variables were quite similar in both groups. In the hybrid group, the number of lymph nodes (25.9±8.5 vs. 32.9±9.7, P<0.01) and positive lymph nodes (3.7±2.9 vs. 5.6±4.0, P=0.045) were significantly higher than those in the thoracotomy group. The hybrid group was associated with significantly shorter postoperative hospital stay (9.5±3.5 vs. 7.3±2.9, P=0.021) and chest tube duration time (6.6±3.1 vs. 5.3±1.5, P=0.031). No statistical difference in complications, reoperation, and recurrence were observed between the hybrid VATS SL and thoracotomy SL (P=1.0, P=1.0, P=0.472). The 30- and 90-day mortalities showed no differences between approaches (2.6% vs. 0%, P=1.0; 5.1% vs. 5.3%, P=1.0). No significant differences were found between thoracotomy and hybrid VATS SL in 3-year OS (P=0.614) and 3-year RFS (P=0.750). Conclusions:Hybrid VATS SL lobectomy may be a safe and feasible approach associated with similar oncologic prognosis and better postoperative recovery compared with thoracotomy SL for NSCLC treatment.