Efficacy and safety analysis of selective hepatic vein occlusion combined with arterial chemoembolization versus conventional transarterial chemoembolization in the treatment of hepatocellular carcinoma

Background: Transarterial chemoembolization (TACE) is a non -radical treatment. How to improve the local response rate of tumor is the direction we have been exploring. The purpose of this study is to compare the efficacy and safety of occlusion-TACE (O-TACE) versus conventional TACE (C-TACE) in the treatment of patients with early to mid -stage hepatocellular carcinoma (HCC) of lesions being confined to the same hepatic venous drainage area. Methods: In this study, 40 patients with HCC were prospectively enrolled and randomly assigned to the O-TACE and C-TACE groups, and the efficacy of all patients was assessed at 1, 2, and 3 months after the first treatment, and adverse events (AEs) occurring during the treatment period were also recorded. Results: At 1, 2 and 3 months after the first treatment, patients in the O-TACE group had significantly better complete response (CR) rates (35% vs . 5%, P=0.04; 50% vs . 15%, P=0.04; 70% vs . 30%, P=0.02) than those in the C-TACE group. The most common AE was abdominal pain, and the liver function indexes of patients in both groups returned to the baseline level at 1 month after the first treatment, and there was no statistically significant difference in the rate of AEs between the two groups. Conclusions: O-TACE has a better CR rate and a favorable safety profile in patients with early to midstage HCC of lesions being confined to the same hepatic venous drainage area.