Working Paper Article Version 1 This version is not peer-reviewed

Preliminary Clinical Application of Domestically Produced Chinese Minimally Invasive Surgical Robot System “Micro Hand S ” in Colon Cancer

Version 1 : Received: 26 February 2020 / Approved: 28 February 2020 / Online: 28 February 2020 (16:10:11 CET)

How to cite: Li, J.; Juan, J.; Zhu, S.; Yi, B. Preliminary Clinical Application of Domestically Produced Chinese Minimally Invasive Surgical Robot System “Micro Hand S ” in Colon Cancer. Preprints 2020, 2020020444 Li, J.; Juan, J.; Zhu, S.; Yi, B. Preliminary Clinical Application of Domestically Produced Chinese Minimally Invasive Surgical Robot System “Micro Hand S ” in Colon Cancer. Preprints 2020, 2020020444

Abstract

Background: The Micro Hand S robot is the first domestically produced surgical robot that has entered clinical use in China, and this is the first report of its application in colon cancer.Objective: This study aimed to validate the safety and efficacy of the domestically produced Chinese minimally invasive Micro Hand S surgical robot system in complex surgery, such as robotic complete mesocolic excision (R-CME).Methods: From March 2018 to December 2018, 30 patients with right hemicolon cancer underwent R-CME with the Micro Hand S robot system. The operative findings, morbidities, oncological findings and unique characteristics were summarizedwere analyzed.Result: 12 patients with right hemicolon cancer and 18 patients with sigmoid colon cancer underwent RCME with the Micro Hand S robot system. During the study period, the median operative duration was 209 (range, 180-255) min, and the median estimated blood loss volume was 35 (range, 25-75) ml. The median number of lymph nodes harvested was 42 (21-77), and the median postoperative hospital stay was 5 (range, 4-7) days. According to the Clavien-Dindo classification, there were no severe complications except for 7 cases of grade I complications and 5 cases of grade II complications. The conversion rate for all operations was 0%. There were no cases of 30-day readmission or 30-day mortality. Conclusion: Clinical application of domestically produced Chinese minimally invasive surgical robot system “Micro Hand S ” in selected colon cancer patients is technically feasible and safe.

Subject Areas

Micro Hand S surgical robot system; robot-assisted complete mesocolic excision; colon cancer; safety; feasibility

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