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Advantages of robotic gastrectomy for overweight patients with gastric cancer: a comparison study of robotic gastrectomy and conventional laparoscopic gastrectomy

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Abstract

Purpose

A high body mass index (BMI) generally increases the risk of postoperative complications because of the intraperitoneal adipose tissue. Robotic gastrectomy (RG) decreases the surgical difficulty of conventional laparoscopic gastrectomy (LG) for these patients. We conducted the present study to identify the advantages of RG over LG for overweight patients.

Methods

We reviewed clinical data on patients who underwent either LG or RG at the National Cancer Center Hospital East between January, 2014 and May, 2022.

Results

The 1298 patients eligible patients were divided into a non-overweight cohort (n = 996) (LG, n = 818; RG, n = 178) and an overweight cohort (n = 302) (LG, n = 250; RG, n = 52) according to a BMI cut-off of 25 kg/m2. In the overweight cohort, the RG group had a lower incidence of grade ≥ III postoperative complications (0.0 vs. 8.8%, p = 0.01) and grade ≥ II postoperative complications (11.5 vs. 22.0%, p = 0.12) than the LG group. Multivariate analysis identified that RG was significantly associated with a lower incidence of grade ≥ II postoperative complications in the overweight cohort (odds ratio, 0.33; 95% confidence interval, 0.12–0.87; p = 0.02).

Conclusions

RG may reduce the risk of postoperative complications, compared with conventional LG, in overweight patients.

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Data availability

The data used for this study is available on reasonable request to the corresponding author.

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Acknowledgements

The data sets generated during the current study are not publicly available to protect individual patient information, but data are available from the corresponding author upon reasonable request.

Funding

This study was not supported by any funding source.

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Authors and Affiliations

  1. Gastric Surgery Division, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan

    Masaru Komatsu, Takahiro Kinoshita, Eigo Akimoto, Mitsumasa Yoshida, Hiromi Nagata, Takumi Habu, Takafumi Okayama & Masahiro Yura

Authors
  1. Masaru Komatsu
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  2. Takahiro Kinoshita
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  3. Eigo Akimoto
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  4. Mitsumasa Yoshida
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  6. Takumi Habu
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  7. Takafumi Okayama
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  8. Masahiro Yura
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Corresponding author

Correspondence to Takahiro Kinoshita.

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We have no conflicts of interests or financial ties to disclose.

Ethical statement

The protocol for this study was approved by the Institutional Review Board (No. 2017-416) and conforms to the provisions of the Declaration of Helsinki. The requirement for informed consent was replaced with an opt-out procedure because of the retrospective nature of the study.

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Komatsu, M., Kinoshita, T., Akimoto, E. et al. Advantages of robotic gastrectomy for overweight patients with gastric cancer: a comparison study of robotic gastrectomy and conventional laparoscopic gastrectomy. Surg Today 53, 1260–1268 (2023). https://doi.org/10.1007/s00595-023-02681-1

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  • DOI: https://doi.org/10.1007/s00595-023-02681-1

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