Abstract

The aim of the present study was to evaluate the long-term outcomes and the impact of repeated conventional transarterial chemoembolization (C-TACE) and transarterial chemoembolization with epirubicin-loaded superabsorbent polymer embolics (SAP-TACE) on liver function in TACE-naïve patients with unresectable hepatocellular carcinoma (HCC). Overall, 155 consecutive patients with HCC received either C-TACE or SAP-TACE. The first cohort (n=71), treated between 2011 and 2014, received C-TACE; the second cohort (n=84), treated between 2014 and 2016, received SAP-TACE. Overall survival and deterioration of liver function were compared between the two cohorts. The 1-, 2- and 3-year overall survival rates and median survival times were 74, 50, 35% and 26 months in the C-TACE cohort and 75, 60, 39% and 28 months in the SAP-TACE cohort, respectively. There were no significant differences between the two groups (P=0.289). Age <70 years, Child-Pugh class A, alpha-fetoprotein <400 ng/ml and des-gamma-carboxy prothrombin <1,000 mAU/ml were identified as favorable prognostic factors in multivariate analysis. In the subgroup of patients with a Child-Pugh score of 5, survival was 29 months for C-TACE vs. 55 months for SAP-TACE (P<0.05). In the C-TACE cohort, the median Child-Pugh score was 6 after 3 cycles and 7 after 5 cycles of TACE, and the score worsened significantly (before vs. 3 cycles, P<0.05; before vs. 5 cycles, P<0.05). In the SAP-TACE cohort, the median Child-Pugh score was 6 after 3 and 5 cycles of TACE, and the score did not worsen during the treatment cycles. There were no differences in overall survival between repeated C-TACE and SAP-TACE in TACE-naïve patients with HCC. However, liver function deterioration was more evident in patients treated with C-TACE than in those treated with SAP-TACE.

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