Comparable perioperative performance between three robotic system for robot-assisted partial nephrectomy to treat early renal cancer

Abstract

This study aimed to compare the safety and efficacy of robot-assisted partial nephrectomy with the two Chinese Robotic systems versus the da Vinci Xi Surgical System. This prospective analytical study included 170 patients who underwent robotic-assisted partial nephrectomy between February 2023 to June 2024. The study included 85 patients who received treatment using two Chinese robotic systems (KangDuo SR 2000: KD-SR-2, EDGE MP1000) and 85 who underwent the da Vinci (DV) surgical system during the same period. The demographic and clinical characteristics of the patients and the intraoperative and follow-up results were compared between the groups. In our study, statistically significance (p < 0.05) were observed between the Chinese robotic group and the da Vinci group in terms of operative time, intraoperative blood loss, and docking time. Among the 170 patients, there were no cases of positive surgical margins or major postoperative complications Clavien-Dindo ≥ 3. Multivariate logistic regression analysis confirmed that operative time, intraoperative blood loss, and docking time were statistically significant variables for evaluating the safety and effectiveness of both robotic systems. RAPN with Chinese robotic systems demonstrated comparable preoperative outcomes in selected parameters (operative time, blood loss, docking time) to the da Vinci system in this exploratory study.