Journal
JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES
Volume 22, Issue 6, Pages 475-485Publisher
WILEY
DOI: 10.1002/jhbp.236
Keywords
Hepatocellular carcinoma; Intramuscular adipose tissue content; Prognostic factor; Sarcopenia
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BackgroundSarcopenia has been shown to be an independent predictor of lower disease-free and overall survival in various kinds of diseases. The quality of skeletal muscle has recently attracted much attention as a new parameter of sarcopenia. MethodsWe performed a retrospective analysis of 477 patients undergoing hepatectomy for hepatocellular carcinoma (HCC) between April 2005 and August 2014. The quality of skeletal muscle was evaluated by intramuscular adipose tissue content (IMAC) using preoperative computed tomography (CT) imaging. The impact of IMAC on outcomes after hepatectomy for HCC was analyzed. ResultsPatients with high IMAC showed older age, higher body mass index, higher indocyanine green retention test at 15min, and more operative blood loss. The overall and recurrence-free survival rates were significantly lower in patients with high IMAC than in patients with normal IMAC (P < 0.0001, P = 0.0012, respectively). Multivariate analysis showed that high IMAC was the significant risk factor for death (hazard ratio [HR] = 2.942; P < 0.0001) and for HCC recurrence (HR = 1.529; P = 0.0007) after hepatectomy. ConclusionsPreoperative quality of skeletal muscle was closely correlated with postoperative mortality and HCC recurrence. IMAC could be incorporated into new selection criteria for hepatectomy for HCC.
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