Background: Sarcopenia is characterized by decreased skeletal muscle plus low muscle strength and/or physical performance. This study was performed to determine the association of sarcopenia with short-term postoperative outcomes after gastrectomy for gastric cancer.
Methods: We conducted a prospective study of 255 consecutive patients with gastric cancer who underwent curative gastrectomy. The sarcopenia elements, including lumbar skeletal muscle index, handgrip strength, and gait speed, were measured before surgery. Patients were followed up after gastrectomy to gain the actual clinical outcomes. Factors contributing to postoperative complications were analyzed by univariate and multivariate analysis.
Results: Sarcopenia was present in 32 of 255 patients (12.5 %), and was significantly correlated with advance age, lower body mass index, higher nutritional risk screening (NRS) 2002 score, and lower preoperative serum albumin and hemoglobin. Compared with non-sarcopenic patients, sarcopenic patients had a higher risk of postoperative complications, longer postoperative hospital stay, and more hospital costs. In univariate analysis, sarcopenia (p < 0.001), nutritional risk (NRS 2002 score ≥3; p = 0.003), advanced age (≥75 years; p = 0.014), anemia (p = 0.012), hypoalbuminemia (p = 0.029), and diabetes (p = 0.014) were associated with postoperative complications. Multivariable analysis revealed that sarcopenia (p < 0.001) and diabetes (p = 0.006) were independent predictors of postoperative complications.
Conclusions: Sarcopenia is an independent predictor of postoperative complications in patients with gastric cancer after gastrectomy.
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