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Purpose <p>The safety and efficacy of robotic surgery in obese patients with rectal cancer remain unclear.</p> Methods <p>Rectal cancer surgery was performed in 1145 patients at Nagasaki University and seven affiliated institutions between April 2016 and December 2024. Of these, 353 patients who were obese (body mass index, ≥ 25&#xa0;kg/m<sup>2</sup>) were categorized into three groups based on the surgical approach: robotic surgery (R group, <i>n</i> = 75), laparoscopic surgery (L group, <i>n </i>= 262), and open surgery (O group, <i>n</i> = 15). We compared and analyzed the background factors and postoperative complications between the groups.</p> Results <p>The O group showed significantly greater frequencies of poor PS (R group vs. L group vs. O group; 5.3% vs. 8.4% vs. 33.3%, <i>p</i> = 0.002) and postoperative complications (9.3% vs. 18.7% vs. 40.0%, <i>p</i> = 0.011). A multivariate analysis identified that open surgery (odds ratio 6.888, 95% confidence interval 1.846–15.704; <i>p</i> = 0.004), laparoscopic surgery (odds ratio 2.197; 95% confidence interval 1.941–5.162; <i>p</i> = 0.048), and preoperative treatment (odds ratio 2.516; 95% confidence interval 1.284–4.930; <i>p</i> = 0.007) were independent predictors of postoperative complications.</p> Conclusion <p>Robotic surgery has shown good postoperative outcomes in obese patients, and it may, therefore, be useful in reducing complications, particularly in patients who have undergone prior treatment.</p>

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Impact of obesity on the short-term outcomes of robotic surgery for rectal cancer: a Japanese multicenter study

  • 期刊论文

  • 发表日期：

    2025年8月22日

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  • Hiroki Katayama,
  • Tetsuro Tominaga,
  • Yuma Takamura,
  • Shintaro Hashimoto,
  • Mariko Yamashita,
  • Shoko Tei,
  • Rika Ono,
  • Mitsutoshi Ishii,
  • Makoto Hisanaga,
  • Kaido Oishi,
  • Masaaki Moriyama,
  • Fumitake Uchida,
  • Toshio Shiraishi,
  • Takashi Nonaka,
  • Keitaro Matsumoto

摘要

Purpose

The safety and efficacy of robotic surgery in obese patients with rectal cancer remain unclear.

Methods

Rectal cancer surgery was performed in 1145 patients at Nagasaki University and seven affiliated institutions between April 2016 and December 2024. Of these, 353 patients who were obese (body mass index, ≥ 25 kg/m2) were categorized into three groups based on the surgical approach: robotic surgery (R group, n = 75), laparoscopic surgery (L group, n = 262), and open surgery (O group, n = 15). We compared and analyzed the background factors and postoperative complications between the groups.

Results

The O group showed significantly greater frequencies of poor PS (R group vs. L group vs. O group; 5.3% vs. 8.4% vs. 33.3%, p = 0.002) and postoperative complications (9.3% vs. 18.7% vs. 40.0%, p = 0.011). A multivariate analysis identified that open surgery (odds ratio 6.888, 95% confidence interval 1.846–15.704; p = 0.004), laparoscopic surgery (odds ratio 2.197; 95% confidence interval 1.941–5.162; p = 0.048), and preoperative treatment (odds ratio 2.516; 95% confidence interval 1.284–4.930; p = 0.007) were independent predictors of postoperative complications.

Conclusion

Robotic surgery has shown good postoperative outcomes in obese patients, and it may, therefore, be useful in reducing complications, particularly in patients who have undergone prior treatment.