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World’s first report of sigmoidectomy for sigmoid cancer using the Saroa surgical system with tactile feedback

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Abstract

Increasing evidence based on the safety and benefits of robot-assisted surgery indicates the disadvantage of the lack of tactile feedback. A lack of tactile feedback increases the risk of intraoperative complications, prolongs operative times, and delays the learning curve. A 40-year-old female patient presented to our hospital with a positive fecal occult blood test. A colonoscopy revealed type 2 advanced cancer of the sigmoid colon, and histological examination showed a well-differentiated adenocarcinoma. Furthermore, abdominal contrast-enhanced computed tomography revealed a tumor in the sigmoid colon and several swollen lymph nodes in the colonic mesentery without distant metastases. The patient was diagnosed with cStage IIIb (cT3N1bM0) sigmoid cancer and underwent sigmoidectomy using the Saroa Surgical System, which was developed by RIVERFIELD, a venture company at the Tokyo Medical and Dental University, and the Tokyo Institute of Technology. Based on adequate simulation, surgery was safely performed with appropriate port placement and arm base-angle adjustment. The operating time was 176 min, with a console time of 116 min and 0 ml blood loss. The patient was discharged 6 days postoperatively without complications. The pathological diagnosis was adenocarcinoma, tub1, tub2, pT2N1bM0, and pStage IIIa. Herein, we report the world's first surgery for sigmoid cancer using the Saroa Surgical System with tactile feedback in which a safe and appropriate oncological surgery was performed.

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Data sharing is not applicable to this article as no new data were created or analyzed in this study.

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Funding

The authors did not receive support from any organization for the submitted work.

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Authors and Affiliations

  1. Department of Gastrointestinal Surgery, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-Ku, Tokyo, Japan

    Marie Hanaoka, Yusuke Kinugasa, Yoshihiro Sakai & Masanori Tokunaga

Authors
  1. Marie Hanaoka
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  2. Yusuke Kinugasa
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  3. Yoshihiro Sakai
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  4. Masanori Tokunaga
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Contributions

All the authors made substantial contributions to the study. Material preparation and data collection was performed by MH, and YK. The first draft of the manuscript was written by MH and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Marie Hanaoka.

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Conflict of interest

Y Kinugasa and M Tokunaga has received research expenses from RIVERFIELD. All remaining authors declare no conflicts of interest.

Ethical approval

Robot-assisted gastric and colorectal malignancy surgery using the Saroa Surgical System was approved by the Evaluating Committee for Highly Difficult New Medical Technologies (approval number 2023–001) as well as the Institutional Review Board (M2023-015) at the Tokyo Medical and Dental University.

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All the procedures were performed in accordance with the Declaration of Helsinki.

Informed consent

Informed consent was obtained from the patient for the publication of this case report.

Research involving human participants and/or animals

All the procedures were performed in accordance with the Declaration of Helsinki.

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Hanaoka, M., Kinugasa, Y., Sakai, Y. et al. World’s first report of sigmoidectomy for sigmoid cancer using the Saroa surgical system with tactile feedback. Updates Surg 75, 2395–2401 (2023). https://doi.org/10.1007/s13304-023-01659-5

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  • DOI: https://doi.org/10.1007/s13304-023-01659-5

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