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Abstract

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Purpose: The purpose of this study was to clarify the risk factors of early recurrence
within 1 year by comparing them with patients without recurrence within 3 years after
curative liver resection in hepatocellular carcinoma (HCC).
Materials and Methods: Three hundred and twenty six patients with HCC who under
went curative liver resection between 1991 Jan. to 1995 June were observed for possible
recurrence for least 3 years. These patients were divided into two groups: 79 patients
who had recurrence within 1 years (early recurred group) and 132 patients who had no
recurrence within 3 years (no recurred group).
Results: Overall survival rates in 5 years after liver resection were 17.5% in early
recurred group and 94.9% in no recurred group. Risk factors of early recurrence in
multivariate analysis were the presence of liver cirrhosis in nontumorous parenchyme
(p=0.011, relative risk (RR)=2.5), tumor size (p=0.004, RR=2.9), multiple mass (p=0.015,
RR=3.4), the presence of angioinvasion (p=0.043, RR=3.7), serum alpha-fetoprotein more
than 20 ng/§£ (p=0.007, RR=2.7), major liver resection more than lobectomy (p=0.039,
RR=3.2). However, other factors such as age, sex, preoperative transcatheter arterial
embolization (TAE), several liver function tests, Child classification, resection margin,
total necrosis of tumor after preoperative TAE, tumor encapsulation, histologic type,
Edmondson's grade, were not significant in our study.
Conclusion: The risk factors of early recurrence were liver cirrhosis, tumor size,
number of tumor, angioinvasion, serum alpha-fetoprotein, and major liver resection.
Biologic characteristics of tumor were the most important risk factors of early
recurrence. Because the extent of liver resection is the only risk factor that depends on
surgeon's decision, we must consider this factor in liver resection for HCC.

Å°¿öµå

Hepatocellular carcinoma; Early recurrence; Liver resection; Risk factor;

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