【Abstract】：As lactate is elevated due to lactate metabolic disorder in liver failure, recent studies have shown that blood lactate has a high value in predicting the prognosis of liver failure. With reference to the research findings in recent years, this article introduces the prediction model of LiFe score and reviews the advances in the clinical application of blood lactate level in patients with liver failure in China and foreign countries. It is believed that a high lactate level is an independent risk factor for poor prognosis of liver failure patients, and it is proposed that lactate can be used as an important indicator to evaluate the severity and prognosis of liver failure and further optimize the scoring system for the prognosis of related liver diseases.
【Key words】：liver failure； lactic acid； prognosis； LiFe score