• J Formos Med Assoc · Jan 2021

    Total skeletal, psoas and rectus abdominis muscle mass as prognostic factors for patients with advanced hepatocellular carcinoma.

    • Chih-Horng Wu, Po-Chin Liang, Chih-Hung Hsu, Fang-Tsu Chang, Yu-Yun Shao, and Ting-Fang Shih Tiffany T Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan. Electronic address: ttfshih@ntu.edu.tw..
    • Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Medicine, National Taiwan University, Taipei, Taiwan.
    • J Formos Med Assoc. 2021 Jan 1; 120 (1 Pt 2): 559-566.

    PurposeWe investigated whether low skeletal muscle mass (LSMM) defined according to different muscle groups on computed tomography (CT) scans are predictive factors of survival for advanced hepatocellular carcinoma (HCC).MethodsIn this retrospective study, we analyzed patients who received sorafenib therapy for advanced HCC in a prospective patient cohort between 2007 and 2012. The total skeletal muscle (TSM), paraspinal muscle (PS), psoas muscle (PM), rectus abdominis (RA), and abdominal wall (AW) muscle areas were evaluated using a single CT slice at the third lumbar vertebra before treatment. LSMM was determined according to the TSM, PS, PM, RA and AW indices, which was calculated as the parameters divided by the square of the body height.ResultsWe enrolled 137 patients. Women had significantly lower TSM index than men did (p < .001). Among men, the optimal cut points of the TSM, PM and RA indices for LSMM diagnosis were 39.1, 8.3 and 2.9 cm2/m2, respectively. Patients with LSMM defined by TSM (median 5.1 vs. 8.0 months, p = .007), PM (5.8 vs. 11.8 months, p < .001), and RA (7.2 vs. 8.1 months, p = .003) indices exhibited poorer overall survival than patients without LSMM. After adjusting for clinical variables, TSM (hazard ratio [HR]: 2.122, 95% confidence interval [CI]: 1.134-3.971) and PM (HR: 1.730, 95% CI: 1.058-2.828) indices-defined LSMM remained independent predictors for poor OS, but RA index-defined LSMM did not.ConclusionLSMM defined by TSM and PM indices are independent predictors of poor prognosis for advanced HCC.Copyright © 2020. Published by Elsevier B.V.

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