[The Current Status and Future Perspective about Robotic Surgery for Gastric Cancer]

Robotic surgery using da Vinci®Surgical System which has the high resolution 3-dimensional images, the forceps with 7 degrees freedom, the function for prevention of tremors and motion scaling enables to perform meticulous operation circumventing the action of forceps movement which is the major problem in conventional laparoscopic surgery. In 2003, initial robotic gastrectomy for gastric cancer has been reported. Since then robotic gastrectomy has been developed mainly in Japan, Korea and Italy. From January 2012, we launched robotic gastrectomy at our institute as prospective clinical phase II trials to clarify the safety of robotic gastrectomy. The results of these trials have already been published and the safety of robotic gastrectomy was confirmed. In the several retrospective analyses, robotic gastrectomy has been reported to show longer operation time, less blood loss and lower morbidity compared with conventional laparoscopic surgery. However, the superiority of robotic gastrectomy to laparoscopic gastrectomy has not yet been demonstrated in terms of short- and long-term outcomes in a randomized controlled trial. Since robotic gastrectomy has been approved in Japanese health insurance system at April 2018, it is expected to rapidly expand throughout the country in the near future. Therefore, it is urgent matter to establish an evidence and educational program. In this article, the current status and future perspective about robotic surgery for gastric cancer are presented.