Establishes model of liver cirrhosis with portal hypertension by portal infusion of 80％ alcohol in swines / 中国介入影像与治疗学

ABSTRACT

Objective To explore the feasibility of establishing a swine model of liver cirrhosis with portal hypertension by portal infusion of 80％ alcohol.Methods A total of 13 Guizhou miniature pigs were randomly divided into three groups,experiment group 1 (n=5),experiment group 2 (n=5) and control group (n=3).Experiment groups of pigs received portal infusion of 80％ alcohol in volumes of 5 ml in group 1,and 10 ml in group 2,and the pigs in control group received portal perfusion of saline in volumes of 10 ml.All animals were performed direct portal angiography,the portal vein pressures and diameter were also detected before,immediately and 6 weeks after the infusion.All animals underwent liver biopsies before and 6 hours,1-6 weeks after operation.And contrast-enhanced abdominal CT was performed before and 6 weeks after operation.All animals were dissected 6 weeks after operation,aud each leaf of liver specimens were performed histological examination.Results There was no statistically significant difference of the portal venous pressure and diameter before infusion and 6 weeks after infusion in the experiment group 1 and control group (all P＞0.05).In the experiment group 2,compared with pre infusion,the portal vein pressure and diameter were higher than those of immediately and 6 weeks after infusion (all P＜0.05).In both experiment group 1 and group 2,all pigs had developed into liver fibrosis,the METAVIR score of 2 pigs in group 1 and 5 pigs in group 2 respectively were up to grade 4.Conclusion Portal infusion of 80％ alcohol is more suitable for establishing a swine model of liver cirrhosis with portal hypertension.