Initial 12 Cases of Robot-Assisted Gastrectomy for Gastric Cancer Using the Hinotori Surgical Robot System: Tips for the Efficient Introduction of a New Surgical Robot.

Introduction: The use of robotic platform for gastrectomy for gastric cancer is rapidly increasing. This study aimed to describe the perioperative outcomes of 12 patients who underwent robotic gastrectomy for gastric cancer using the hinotori™ surgical robot system (hinotori), a novel robot-assisted surgical platform, and compare the outcomes with the existing system, the da Vinci® Surgical System (DVSS). Methods: This study included 12 consecutive patients with gastric cancer who underwent robotic gastrectomy for gastric cancer using the hinotori between March 2023 and September 2023 at our institution. The comprehensive perioperative outcomes of these patients were retrospectively analyzed and compared to 11 patients who underwent robotic gastrectomy using the DVSS during the same period. Results: The median age and body mass index were 71 years (range: 56-86) and 22.7 kg/m2 (range: 16.1-26.7). Distal and total gastrectomy were performed in 8 and 4 patients, respectively. The median console time and operation times were 187 (range: 112-270) and 252 minutes (range: 173-339), respectively. The median blood loss was 3 mL (range: 2-5). No intra- or postoperative complications were observed. There were no significant differences in perioperative outcomes between the hinotori and the DVSS. Conclusions: Robotic gastrectomy for gastric cancer using the hinotori is a feasible procedure and achieved perioperative outcomes similar to that using the DVSS. Clinical Trial Registration number: 114167-1.