Abstract:Objective To investigate the incidence and prognosis of acute liver injury (AKI) in patients with chronic liver disease, and to provide scientific basis for clinical prevention and treatment of chronic liver disease AKI. Methods A retrospective analysis was performed on the 200 patients with chronic liver disease and AKI defined between March 2017 and March 2018 in Shijiazhuang fifth hospital, and 140 patients with chronic liver disease without AKI. To analyze the pathogenesis of chronic liver disease AKI and the prognosis of AKI patients. Results Compared with the control group, the levels of UA, Scr increased and GFR decreased in patients with chronic hepatitis, liver cirrhosis and liver cancer with acute kidney injury (P?0.05); the levels of BUN were increased in patients with liver cirrhosis and liver cancer AKI, compared with the control group (P?0.05). In patients with AKI of different types of liver diseases, the levels of ALT, Alb and GFR were significantly decreased, and the levels of BUN and Scr were significantly higher in cirrhosis and cancer than in chronic hepatitis (P?0.05). There was a negative correlation between BUN, Scr and ALB (P?< 0.05), and there were positive correlation between BUN, Scr and TBIL, DBIL in patients with chronic liver disease and acute kidney injury (P?0.05). The GFR was negatively correlated with ALT (P?0.05), and was positively correlated with Alb (P?0.05). Compared with the chronic hepatitis group, the incidence of ascites, splenomegaly and pulmonary infection in patients with liver cirrhosis was statistically significant (P?0.05). The mortality rates of I, II, and III stage AKI in patients with chronic liver disease were 29.5%, 58.1% and 92.3% respectively, and there was significant difference between the two groups (P?0.05). Conclusions In patients with chronic hepatitis and renal injury, renal GFR decreased, Scr and UA levels increased, liver ALT, AST, TBIL, DBIL levels increased, and renal function damage was closely related to Alb levels and TBIL. When liver cirrhosis and liver cancer combined with kidney injury, compared with other complications, ascites occurred higher, followed by the incidence of lung infection and hepatic encephalopathy. And the severity of kidney damage is related to the mortality rate.