Technical evaluation of robotic tele-cholecystectomy: a randomized single-blind controlled pilot study

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Abstract

Although robotic telesurgery is growing in popularity, the benefits of telesurgery compared to local surgery are unclear. This study aimed to evaluate the performance of robotic tele-cholecystectomy with a commercial line using the Saroa™ (Riverfield, Inc., Tokyo, Japan) system. The operation rooms of the Hokkaido University Hospital and Kushiro City General Hospital were connected using a best effort-type line (1 Gbps), with a distance of 250 km between the two hospitals. In this experimental single-blind randomized crossover trial, eight expert robotic surgeons performed robotic cholecystectomy in an artificial organ model using the Saroa™ system and were randomized to begin with either local surgery or telesurgery. All surgeons were assessed on task completion time, total path length of the right- and left- hand forceps and camera, Global Evaluative Assessment of Robotic Skills (GEARS), Global Operative Assessment of Laparoscopic Skills (GOALS), and System and Piper Fatigue Scale-12 (PFS-12). In all experiments, the communication environment was stable and the mean communication delay was 8 ms (3–31 ms). All tele-cholecystectomies were performed safely. There was no significant difference in completion time (P = 0.495), score of GEARS (P = 0.258), GOALS (P = 0.180), or PFS-12 (P = 0.528) between local surgery and telesurgery. The total path of the forceps tended to be longer in tele-cholecystectomy, particularly with significantly longer left-hand forceps total path length (P = 0.041). Robotic tele-cholecystectomy using a commercial line can be performed safely as same as local robotic surgery, but the total path of the left-hand forceps was prolonged in robotic tele-cholecystectomy due to overshoot. Therefore, a solution for overshooting will be required in the future.

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APA

Ebihara, Y., Hirano, S., Takano, H., Kanno, T., Kawashima, K., Morohashi, H., … Mori, M. (2023). Technical evaluation of robotic tele-cholecystectomy: a randomized single-blind controlled pilot study. Journal of Robotic Surgery, 17(3), 1105–1111. https://doi.org/10.1007/s11701-023-01522-0

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