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Depletion of skeletal muscle mass adversely affects long-term outcomes for men undergoing gastrectomy for gastric cancer

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  • Katsunobu Sakurai
  • Naoshi Kubo
  • Yutaka Tamamori
  • Naoki Aomatsu
  • Takafumi Nishii
  • Akiko Tachimori
  • Yukio Nishiguchi
  • Kiyoshi Maeda

Abstract

Background: Although low skeletal muscle mass has an adverse impact on the treatment outcomes of cancer patients, whether the relationship between preoperative skeletal muscle mass and gastrectomy outcomes in gastric cancer (GC) differs between men and women is unclear. The study aimed to clarify this relationship based on gender. Methods: Between January 2007 and December 2015, 1054 patients who underwent gastrectomy for GC at Osaka City General Hospital were enrolled in this study. We evaluated sarcopenia by the skeletal muscle index (SMI), which was measured by computed tomography (CT) using areas of muscle in the third lumbar vertebral body (L3). Male and female patients were each divided into two groups (low skeletal muscle and high skeletal muscle). Results: The SMI emerged as an independent predictor of 5-year overall survival (OS) in male GC patients (Hazard ratio 2.51; 95% confidence interval (CI) 1.73–3.63, p

Suggested Citation

  • Katsunobu Sakurai & Naoshi Kubo & Yutaka Tamamori & Naoki Aomatsu & Takafumi Nishii & Akiko Tachimori & Yukio Nishiguchi & Kiyoshi Maeda, 2021. "Depletion of skeletal muscle mass adversely affects long-term outcomes for men undergoing gastrectomy for gastric cancer," PLOS ONE, Public Library of Science, vol. 16(8), pages 1-11, August.
    • Handle: RePEc:plo:pone00:0256365
    DOI: 10.1371/journal.pone.0256365
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