Short-term outcomes of robot-assisted minimally invasive esophagectomy for esophageal cancer: A propensity score matched analysis

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Abstract

Background: Minimally invasive esophagectomy (MIE) was shown to be effective in reducing the morbidity and was adopted increasingly. The robot-assisted minimally invasive esophagectomy (RAMIE) remains in the initial stage of application. This study evaluated its safety and feasibility by comparing short-term outcomes of RAMIE and video-assisted minimally invasive esophagectomy (VAMIE). Methods: Between March 2016 and December 2017, 115 consecutive patients underwent RAMIE or VAMIE at our institute. The baseline characteristics, pathological data and short-term outcomes of these two group patients were collected and compared. RAMIE patients were propensity score matched with VAMIE patients for a more accurate comparison. Results: Matching based on propensity scores produced 27 patients in each group. After propensity score matching (PSM), the baseline characteristics between the two groups were comparable. The operation time in RAMIE group was significantly longer than that in VAMIE group (349 and 294 min, respectively; P < 0.001). The blood loss volume in RAMIE group was less than that in VAMIE group (119 and 158 ml, respectively), but with no statistically significant difference (P = 0.062). There was no significant difference between the two groups with respect to the mean number of dissected lymph nodes (20 and 19, respectively; P = 0.420), postoperative hospital stay (13.8 and 12.7 days, respectively; P = 0.548), the rate of overall complications (37.0 and 33.3%, respectively; P = 0.776) and the rates of detailed complications between the two groups. Conclusions: The short-term outcomes of RAMIE is comparable to VAMIE, demonstrating safety and feasibility of RAMIE.

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He, H., Wu, Q., Wang, Z., Zhang, Y., Chen, N., Fu, J., & Zhang, G. (2018). Short-term outcomes of robot-assisted minimally invasive esophagectomy for esophageal cancer: A propensity score matched analysis. Journal of Cardiothoracic Surgery, 13(1). https://doi.org/10.1186/s13019-018-0727-4

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