BACKGROUND: Skeletal muscle depletion or sarcopenia has been identified as a poor prognostic factor for various diseases. The aim of this study is to determine whether muscle depletion is a prognostic factor for hepatocellular carcinoma (HCC). METHODS: We evaluated 217 consecutive patients with primary HCC. The skeletal muscle cross-sectional area was measured by computed tomography at the third lumbar vertebra (L3), from which the total body fat-free mass (FFM) and L3 skeletal muscle index (L3 SMI) were obtained. The factors contributing to overall survival (OS) were analyzed by univariate and multivariate Cox proportional hazards model. RESULTS: In univariate analysis, FFM (P = 0.0422), Child-Pugh classification (P = 0.0058), serum albumin level (P < 0.0001), serum AFP level (P < 0.0001), serum proteins induced by vitamin K absence or antagonist-II level (P < 0.0001), cancer stage (P < 0.0001), and curability of the initial treatment (P < 0.0001) were significantly associated with the prognosis of HCC. Multivariate analysis indicated that FFM (P = 0.0499), albumin level (P = 0.0398), and curability of the initial treatment (P = 0.0008) were independent prognostic factors. Sarcopenia was defined as an L3 SMI value of ≤29.0 cm(2)/m(2) for women and ≤36.0 cm(2)/m(2) for men, and 24 patients (11.1%) have sarcopenia. Sarcopenic patients showed a significantly lower OS than those without sarcopenia (P = 0.0043). Sarcopenic patients who were overweight (BMI >22) died earlier (P = 0.0129). CONCLUSIONS: Skeletal muscle depletion is an independent prognostic factor. Intervention to prevent muscle wasting might be an effective strategy for improving the outcome of HCC.
BACKGROUND: Skeletal muscle depletion or sarcopenia has been identified as a poor prognostic factor for various diseases. The aim of this study is to determine whether muscle depletion is a prognostic factor for hepatocellular carcinoma (HCC). METHODS: We evaluated 217 consecutive patients with primary HCC. The skeletal muscle cross-sectional area was measured by computed tomography at the third lumbar vertebra (L3), from which the total body fat-free mass (FFM) and L3 skeletal muscle index (L3 SMI) were obtained. The factors contributing to overall survival (OS) were analyzed by univariate and multivariate Cox proportional hazards model. RESULTS: In univariate analysis, FFM (P = 0.0422), Child-Pugh classification (P = 0.0058), serum albumin level (P < 0.0001), serum AFP level (P < 0.0001), serum proteins induced by vitamin K absence or antagonist-II level (P < 0.0001), cancer stage (P < 0.0001), and curability of the initial treatment (P < 0.0001) were significantly associated with the prognosis of HCC. Multivariate analysis indicated that FFM (P = 0.0499), albumin level (P = 0.0398), and curability of the initial treatment (P = 0.0008) were independent prognostic factors. Sarcopenia was defined as an L3 SMI value of ≤29.0 cm(2)/m(2) for women and ≤36.0 cm(2)/m(2) for men, and 24 patients (11.1%) have sarcopenia. Sarcopenic patients showed a significantly lower OS than those without sarcopenia (P = 0.0043). Sarcopenic patients who were overweight (BMI >22) died earlier (P = 0.0129). CONCLUSIONS: Skeletal muscle depletion is an independent prognostic factor. Intervention to prevent muscle wasting might be an effective strategy for improving the outcome of HCC.
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