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人工肝支持系统是肝衰竭治疗的重要手段，但人工肝治疗后常合并继发性感染。而感染是肝衰竭患者病情加重的危险因素，导致患者病死率增加，预后不佳。如何防治肝衰竭人工肝治疗患者发生感染，是提高人工肝治疗效果的关键因素。“,”Artificial liver support system is an important method of treating liver failure, but after artificial liver treatment, secondary infections are usually amalgamated. Additionally, infection is a risk factor that aggravates liver failure, leading to an increased mortality and poor prognosis. Therefore, how to prevent and treat occurrence of infection in patients with liver failure is a key factor to improve the efficacy of artificial liver treatment.