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Hepatogastroenterology. 2013 Jun;60(124):825-36. doi: 10.5754/hge121039. Epub 2013 Jan 16.

Alpha-fetoprotein: the predictor of microvascular invasion in solitary small hepatocellular carcinoma and criterion for anatomic or non-anatomic hepatic resection.

Abstract

BACKGROUND/AIMS:

This study aimed to identify the preoperative predictors of microvascular invasion (MVI) in solitary small hepatocellular carcinoma (HCC) and evaluate their application in surgical treatment.

METHODOLOGY:

We retrospectively analyzed 161 patients with solitary small HCC who underwent curative hepatic resection. Overall and disease-free survival rates were calculated by Kaplan-Meier method and compared by log-rank test. The independent predictors were identified by Cox proportional hazards model.

RESULTS:

MVI was an independent predictor of both overall and disease-free survival. In 51 patients with MVI, anatomic resection achieved better survival than non-anatomic resection. However, anatomic resection and non-anatomic resection brought similar survival in patients without MVI. Alpha-fetoprotein (AFP) was identified as the unique predictor of MVI (HR=2.773, p=0.004). Anatomic resection achieved better survival outcome than non-anatomic resection when AFP >100μg/L (5-year overall survival rate: 85% vs. 55%, p=0.024; 5-year disease-free survival rate: 37% vs. 21%, p=0.025), while there was no statistical survival difference between anatomic and non-anatomic resection when AFP <=100μg/L (5-year overall survival rate: 85% vs. 76%, p=0.838; 5-year disease-free survival rate: 48% vs. 49%, p=0.921).

CONCLUSIONS:

Compared with non-anatomic resection, anatomic hepatic resection improves overall and disease-free survival of solitary small HCC patients with AFP >100μg/L.

PMID:
23321029
DOI:
10.5754/hge121039
[Indexed for MEDLINE]
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