FIB-4=年龄×AST / (PLT计数×√ALT)
AST:谷草转氨酶,或称门冬氨酸转氨酶
ALT:谷氨酸氨基转移酶,或称丙氨酸氨基转移酶
PLT计数:血小板计数
FIB-4指数用于评估慢性肝病患者肝纤维化程度。
对于慢性病毒性肝炎(如乙肝、丙肝等):
| FIB-4 | 风险 | 说明 |
|---|---|---|
| <1.45 | 低风险 | 通常认为没有显著的肝纤维化 |
| 1.45~3.25 | 中风险 | 可能存在一定程度的肝纤维化 |
| >3.25 | 高风险 | 可能存在显著的肝纤维化或肝硬化 |
对于NAFLD(非酒精性脂肪性肝病)或MAFLD(代谢相关脂肪性肝病)患者:
| FIB-4 & LSM | 说明 |
|---|---|
| FIB-4<1.3和LSM<8kPa | 基本排除进展期纤维化 |
| 1.3<FIB-4<2.6和LSM为8~12kPa | 提示显著肝纤维化 |
| FIB-4>2.67和LSM>12kPa | 提示进展期纤维化 |
| FIB-4>3.48和LSM>20kPa | 可能提示肝硬化 |
注:LSM为liver stiffness measurement,为肝硬度值。
[1] Kim MN, Lee JH, Chon YE, et al. Fibrosis-4, aspartate transaminase-to-platelet ratio index, and gamma-glutamyl transpeptidase-to-platelet ratio for risk assessment of hepatocellular carcinoma in chronic hepatitis B patients: comparison with liver biopsy. Eur J Gastroenterol Hepatol. 2019 Sep 3.
[2] Hannes Hagström, Mats Talbäck, Anna Andreasson, Göran Walldius, Niklas Hammar. Repeated FIB-4 measurements can help identify individuals at risk of severe liver disease. Journal of Hepatology, 2020; DOI: 10.1016/j.jhep.2020.06.007
[3] Tseng TC, Choi J, Nguyen MH, et al. One-year Fibrosis-4 index helps identify minimal HCC risk in non-cirrhotic chronic hepatitis B patients with antiviral treatment. Hepatol Int. 2021 Feb;15(1):105-113.
[4] 范建高,徐小元,南月敏,等.代谢相关(非酒精性)脂肪性肝病防治指南(2024年版)[J].实用肝脏病杂志,2024,27(04):494-510.