Background
Uniportal video-assisted thoracoscopic surgery (U-VATS) has recently emerged as an alternative procedure for non-small cell lung cancer (NSCLC); however, whether U-VATS has advantages over multiportal VATS (M-VATS) remains unknown.
Methods
We performed a systematic review of two databases (Pubmed and Web of Science) to search comparative studies of U-VATS and M-VATS anatomical pulmonary resection for NSCLC. Parameters of continuous variables (operative time, blood loss, number of resected lymph nodes, drainage duration, length of postoperative stay and pain in postoperative day 1(POD1)) or categorical variables (conversion rates) were retrieved to estimate the comparitiveoutcomes. A subgroup analysis stratified by study type (propensity-matched analysis& randomized-controlled trial versus non-propensity matched analysis) was performed.
Result
A total of 19 studies with 3809 patients were included in this meta-analysis. U-VATS was performed on 1747 patients, whereas the other 2062 patients underwent M-VATS. This meta-analysis showed that there was no significant difference in operative time (U-VATS: 146.48±55.07min versus M-VATS: 171.70±79.40min, P=0.81), blood loss (74.49±109.03mL versus 95.48±133.67mL, P=0.18), resected lymph nodes (17.28±9.46 versus 18.31±10.17, P=0.62), conversion rate (6.18% versus 4.34%, P=0.14), drainage duration (3.90±2.94 days versus 4.44±3.12 days, p=0.09), length of postoperative stay (6.16±4.40 days versus 6.45±4.80 days, P=0.22), and pain in POD1 (3.94±1.68 versus 3.59±2.76, p=0.07). Subgroup analysis showed the value of PSM&RCT group consistency with overall value.
Conclusion
This up-to-date meta-analysis shows that the perioperative outcomes of U-VATS and M-VATS anatomical pulmonary resection are equivalent. In addition, the differences in long-term outcomes of these two approaches are still unclear. Thoracic surgeons should pay more emphasize on providing high-quality and personalized surgical care for patients, to improve the survival ultimately.