Abstract
This study is to clarify the feasibility and justification of robotic pancreaticoduodenectomy (RPD) by comparing the outcomes between RPD and open pancreaticoduodenectomy (OPD) groups. All perioperative data and outcomes were prospectively collected. There were 304 (63.9%) RPD and 172 (36.1%) OPD. The median operation time was longer in RPD group than OPD (7.5 vs 7.0h). The blood loss was much lower in RPD group, with a median of 130 vs. 400 c.c. in OPD group. Based on Clavien-Dindo classification, grade 0 (no complication) was 51.8% in RPD group, higher than 43.2% in OPD. Delayed gastric emptying was only 3.5% in RPD group, much lower than 13.6% in OPD. Wound infection rate was also lower in RPD group, 3.2% vs. 7.7% in OPD. The postoperative hospital stay was shorter in RPD group, with a median of 20days, vs. 24days in OPD. There was no significant difference regarding the lymph node yield, surgical mortality, postoperative pancreatic fistula, postpancreatectomy hemorrhage, chyle leakage and bile leakage between RPD and OPD groups. For pancreatic head adenocarcinoma, the survival outcome was better in RPD group, with 1-year, 3-year, and 5-year survival of 82.9%, 45.3%, and 26.8% respectively, as compared with 63.8%, 26.2%, and 17.4% in OPD. RPD is not only feasible but also justified without increasing the surgical risks and compromising the survival outcomes. Moreover, RPD might provide benefits of less blood loss, less delayed gastric emptying, lower wound infection rate and shorter length of postoperative stay, as compared with OPD.
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