Comparison of perioperative outcomes and technical features using da Vinci Si and Xi robotic platforms for early stages of endometrial cancer.

We directly compared perioperative outcomes and technical features between previous da Vinci Si and the newer Xi robotic platform during total hysterectomy plus salpingo-oophorectomy with or without lymphadenectomy for early-stage endometrial cancer. We retrospectively analyzed147 patients with histological confirmation of endometrial carcinoma stage IA: grade 1-2, 3 and stage IB: grade 1-2 who underwent surgery with da Vinci Si or Xi system between January 2016 and December 2018. Perioperative data, technical features and postoperative complications were considered. 91 patients underwent surgery with the Si system and 56 with the Xi system. Docking time using the Xi system was significantly shorter (p < 0.002), while overall operating time was similar. There were no significant differences in the number of harvested lymph nodes, conversion rate, mean hospital stay, complications, and technical aspects between the two groups. Our study detected similar perioperative outcomes and the trend toward shorter docking and operating time for Xi over Si robot.