#205 Performing A Retzius-Sparing Prostatectomy with a New Robot – Revo-i Drs. Sylvia Ali, Koon Rha

This is one of the 2023 KS International Innovation Awards videos selected for inclusion in the Vattikuti Foundation – ORSI Humans on the Cutting Edge of Robotic Surgery Conference, October 6, 7 & 8, 2023 in Ghent, Belgium. Posting does not imply that is has been selected as a Finalist, just that the content will be discussed at the Conference.

From the entry: Performing a Retzius-sparing Radical Prostatectomy with a New Robot – Revo-i Dr. Koon Ho Rha (Yonsei University, Seoul, South Korea) Dr. Sylvia Alip (University of the Philippines, Manila, Philippines)

Abstract Introduction The Da Vinci robot is the ubiquitous international standard for robotic surgery. Newer robots are set to challenge the monopoly, bring down costs, and make innovations more accessible to patients around the world. One such robot is the Revo-i (Meerecompany, Seoul, South Korea) – a new telemanipulator system approved in 2018. The aim of this study and accompanying video demonstration is to illustrate similarities and differences between the two systems and their outcomes.

Materials and Methods Non-metastatic prostate cancer patients undergoing Retzius-sparing robot- assisted radical prostatectomy (RS-RARP) from January 2016 to December 2020 were matched into two cohorts according to the following criteria: age, ASA score, BMI, prostate volume, Gleason score, tumor stage. One cohort was operated on using the da Vinci robot, and another with the Revo-i. The following outcomes were compared: estimated blood loss, length-of-stay, complication rate, operative times, positive surgical margins, and biochemical recurrence at six months.

Results Both cohorts were similar in estimated blood loss, positive margin rate and complication rate. The DaVinci showed faster console, suture, and total operation times. These differences were statistically significant.

Conclusion The Revo-I, despite being slower than the DaVinci in operative times, continues to perform efficiently with similar short-term oncologic outcomes. More studies on new robotic systems may help broaden the options for robotic surgery.

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