Abstract

BackgroundHealth burdens of hepatocellular carcinoma (HCC) are emerging quickly in the world, including in Taiwan. Surgical resection has been recognized as the first-line treatment for early tumors. This study aimed to investigate the prognostic risk factors for mortality and recurrence rate in Taiwan, which has a high prevalence of chronic viral hepatitis. MethodsA total of 397 HCC patients receiving tumor resection were consecutively examined in central Taiwan from 2008 to 2014. A hospital-based patient cohort was designed to collect serological markers to further assess liver function. We modified the Kaplan–Meier method according to the competing death risks for comparing recurrence and used multivariate Cox proportional hazard regression to adjust for significant risk factors. ResultsIn addition to advanced fibrosis, tumor size ≥5 cm was significantly associated with higher mortality within the 5-year period when compared with <5 cm (43.3% vs. 13.2%, p < 0.0001). Patients with tumor size ≥5 cm also easily progressed to early recurrence within two years when accounting for death as a competing risk (20.1% vs. 10.1%, p = 0.01). Higher AFP levels played a major role in further predicting higher mortality in those patients. We determined that there were a 4.5-fold and 2.2-fold higher mortalities in patients with size ≥5 cm/AFP ≥20 ng/mL and with size ≥5 cm/AFP< 20 ng/mL, respectively, when compared to patients with small tumors. ConclusionTumor size ≥5 cm might be a good predicting factor for death and early recurrence when considering death as a competing risk.

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