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Body Compositions of Elderly and Non-Elderly Patients Following Gastrectomy for Gastric Cancer
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Ji Hoon Kang, Mi Ran Jung, Sung Eun Kim, Oh Jeong
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Ann Clin Nutr Metab 2022;14(2):81-87. Published online December 1, 2022
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DOI: https://doi.org/10.15747/ACNM.2022.14.2.81
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 Abstract
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- Purpose: Radical gastric resection is the mainstay of treatment in gastric cancer. However, patients can suffer from eating restrictions, weight loss, and malnutrition after gastrectomy, to which elderly patients are more vulnerable. We compared body composition changes in elderly patients and non-elderly patients after gastrectomy.
Materials and Methods: This prospective study enrolled patients who underwent gastrectomy for gastric carcinoma between 2019 and 2021. Body composition was measured using bioelectrical impedance analysis (InBody S10) before surgery and up to 12 months after surgery. Patients were divided into an elderly group (>70 years) and a non-elderly group (≤70 years), and body composition changes were compared between the two groups using the linear mixed model.
Results: There were 69 patients in the elderly group and 164 patients in the non-elderly group. The groups showed no significant differences in gastric resection or pathologic stage. Overall, body composition, including total body water, body weight, lean body mass, skeletal muscle mass, and fat mass, decreased immediately after surgery and gradually improved until postoperative 12 months. A linear mixed model showed no significant time×group interactions for any body composition factors between groups.
Conclusion: Body composition changes did not significantly differ between elderly patients and non-elderly patients after gastrectomy.
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