Clinical efficacy of radiofrequency ablation for postoperative recurrent and primary hepatocellular carcinoma / 中华普通外科杂志

ABSTRACT

Objective To compare the prognosis of radiofrequency ablation (RFA) for postoperative recurrent hepatocellular carcinoma and primary hepatocellular carcinoma(HCC).Methods The clinical data of 179 patients with recurrent HCC (recurrent group) and primary HCC (primary group) treated by RFA from 2009 to 2015 were retrospectively analyzed.Overall survival rate (OS) and disease-free survival rate (DFS) were analyzed by Kaplan-meier log-rank test.The prognostic factors of RFA for recurrent HCC were analyzed by COX proportional hazard regression.Results The 1,3 and 5year's OS of the recurrent group were 93％,73％,61％,respectively and 85％,75％,61％ for the primary group(x2 =0.017,P =0.896).The corresponding 1,3 and 5year's DFS were 61％,39％,21％ and 79％,64％,46％ respectively (x2 =3.899,P =0.048).The independent risk factors affecting the OS of the recurrent group were the interval between hepatectomy to recurrence ≤ 12 months (HR =0.264,95％ CI =0.077-0.901,P =0.033) and the Child-Pugh grading B before RFA (HR =4.501,95％ CI =1.426-14.208,P =0.01).Conclusions The DFS of patients with recurrent HCC were shorter than that with primary HCC treated by RFA.The interval between hepatectomy to recurrence and the Child-Pugh grading before RFA were independent risk factors for OS of the recurrent group.