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  • Title: Measurement of muscle quantity/quality has additional predictive value for postoperative complications and long-term survival after gastrectomy for gastric cancer in patients with probable sarcopenia as defined by the new EWGSOP2 consensus: Analysis from a large-scale prospective study.
    Author: Huang DD, Cai HY, Wang WB, Song HN, Luo X, Dong WX, Dong QT, Chen XL, Yan JY.
    Journal: Nutrition; 2021 Jun; 86():111156. PubMed ID: 33601124.
    Abstract:
    OBJECTIVES: We investigated whether measurement of muscle quantity/quality has additional predictive value for postoperative complications and long-term survival after gastrectomy for gastric cancer in patients with probable sarcopenia, as defined by the new European Working Group on Sarcopenia in Older People 2 consensus. METHODS: We conducted a prospective study of patients who underwent a radical gastrectomy for gastric cancer between August 2014 and June 2019. Muscle strength was measured using a handgrip dynamometer. Computed tomography images at the third lumbar vertebra level were used to assess muscle quantity and quality by the measuring cross-sectional muscle area and mean muscle attenuation, respectively. Probable sarcopenia was defined by low muscle strength. Sarcopenia was diagnosed by additional low muscle quantity or quality. Clinical outcomes were obtained by prospective data collection and follow up. RESULTS: Probable sarcopenia was identified in 419 patients, including 285 patients with sarcopenia. Patients with sarcopenia had a higher incidence of postoperative complications, higher costs, longer length of postoperative hospital stay, and worse overall survival (OS) and disease-free survival (DFS) compared with patients with low muscle strength only. The multivariate logistic analysis showed that sarcopenia and hypoproteinemia were independent risk factors for postoperative complications in patients with probable sarcopenia. Moreover, multivariate Cox analyses showed that sarcopenia remained an independent risk factor for OS and DFS in patients with probable sarcopenia. CONCLUSIONS: The measurement of muscle quantity/quality has additional predictive value for postoperative complications, OS, and DFS after gastrectomy for gastric cancer in patients with probable sarcopenia.
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