4.4 Article

Reduced-port robotic radical gastrectomy for gastric cancer: a single-institute experience

Journal

BMC SURGERY
Volume 22, Issue 1, Pages -

Publisher

BMC
DOI: 10.1186/s12893-022-01645-5

Keywords

Gastrectomy; Gastric cancer; Lymph node dissection; Robotic surgery

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Reduced-port robotic gastrectomy with D2 lymph node dissection appears to be comparable to the conventional four-port robotic approach in terms of postoperative pain, surgical quality, and short-term outcomes. However, further studies are needed to confirm these findings and clarify the advantages of the reduced-port robotic approach.
Background: Reduced-port laparoscopic gastrectomy can potentially reduce postoperative pain and improve recovery time. However, the inherent difficulty caused by the narrow manipulation angle makes this operation difficult, especially during lymph node dissection. The intrinsic advantage of the da Vinci (R) robotic system might offset this difficulty, maintaining adequate surgical quality with risks of surgical complications equal to those by the conventional four-port robotic approach. The aim of this study was to compare the reduced-port robotic approach and the conventional four-port approach in terms of postoperative pain and short-term surgical outcomes. Methods: All patients who underwent radical gastrectomy with D2 lymph node dissection using the da Vinci Xi robotic system, including reduced-port or conventional four-port approach, were analyzed retrospectively. The primary outcome was postoperative pain assessed using the numerical rating scale (NRS). The secondary outcomes were the number of harvested lymph nodes, operation time, length of hospital stay, and postoperative 30-day complications. Results: Forty-eight patients were enrolled in the study, 10 cases in the reduced-port and 38 in the conventional four-port group. Postoperative NRS revealed no significant difference between the reduced-port and conventional four-port groups [postoperative day (POD) 1: 4.5 vs. 3, p = 0.047, POD 3: 4 vs. 3, p = 0.178]. After propensity score matching, there were no significant differences in the median number of harvested lymph nodes, operation time, and length of hospital stay between the groups. The postoperative 30-day complications were more frequent in the conventional four-port group, but there was no significant difference compared with the reduced-port group after propensity score matching. Conclusions: Reduced-port robotic gastrectomy with D2 lymph node dissection might be comparable to the conventional four-port robotic operation in terms of postoperative pain, surgical quality, and short-term outcomes. However, further studies are required to confirm our results and clarify the advantages of the robotic reduced-port approach.

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