Journal
TRANSLATIONAL LUNG CANCER RESEARCH
Volume 10, Issue 10, Pages 3875-3887Publisher
AME PUBLISHING COMPANY
DOI: 10.21037/tlcr-21-629
Keywords
Spontaneous ventilation video-assisted thoracoscopic surgery (SV-VATS); long-term survival; non-small cell lung cancer (NSCLC); mechanical ventilation video-assisted thoracoscopic surgery (MV-VATS); lobectomy
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A retrospective study found that NSCLC patients undergoing SV-VATS had significantly better long-term survival outcomes compared to those undergoing MV-VATS, with no significant differences in intraoperative and postoperative parameters.
Background: Spontaneous ventilation video-assisted thoracoscopic surgery (SV-VATS) exhibits dual intraoperative and postoperative advantages for patients with non-small cell lung cancer (NSCLC). However, there is a lack of data regarding its long-term survival superiority over the double-lumen intubated mechanical ventilation video-assisted thoracoscopic surgery (MV-VATS) or thoracotomy. Methods: A retrospective study was conducted from 2011 to 2018 in the First Affiliated Hospital of Guangzhou Medical University among patients with NSCLC who underwent the SV-VATS or the MV-VATS. Patients receiving the SV-VATS were the study group, and patients receiving the MV-VATS were the control group. Propensity score matching (PSM) was performed to establish 1:1 SV-VATS versus MV-VATS group matching to balance potential baseline confounding factors. Primary endpoints were overall survival (OS) and disease-free survival (DFS). Secondary endpoints were perioperative outcomes. The baseline information of these patients was recorded. The perioperative data and survival data were collected using a combination of electronic data record system and telephone interview. A 1:1:1 SPM was also used to compare the OS in the SV-VATS, the MV-VATS and thoracotomy group by using another database, including patients undergoing thoracotomy and the MV-VATS. Results: For the two-group comparison, after 1:1 PSM, a matched cohort with 400 (200:200) patients was generated. The median follow-up time in this cohort was 4.78 years (IQR, 3.78-6.62 years). The OS (HR=0.567, 95% CI, 0.330 to 0.974, P=0.0498) and the DFS (HR=0.546, 95% CI, 0.346 to 0.863, P=0.013) of the SV-VATS group were significantly better than the MV-VATS group. There were no statistically differences between the SV-VATS and the MV-VATS group on the operative time (158.56 +/- 40.09 vs. 172.06 +/- 61.75, P=0.200) anesthesia time (247.4 +/- 62.49 vs. 256.7 +/- 58.52, P=0.528), and intraoperative bleeding volume (78.88 +/- 80.25 vs. 109.932 +/- 180.86, P=0.092). For the three-group comparison, after 1:1:1 PSM, 582 (194:194:194) patients were included for the comparison of SV-VATS, MV-VATS and thoracotomy. The OS of the SV-VATS group was significantly better than the thoracotomy group (HR=0.379, 95% CI, 0.233 to 0.617, P<0.001). Conclusions: Invasive NSCLC patients undergoing SV-VATS lobectomy demonstrated better long-term outcomes compared with MV-VATS.
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