Omentocavopexy

A Method for Graded Portal Vein Stenosis in Rats: Survival Related to Degree of Stenosis

“…Previously reported methods for extrahepatic portal vein obstruction in experimental animals can be summarized as follows: (1) complete or partial obstruction of the portal vein at random [1,5,7,9]; (2) gradual closure of the portal vein by induction of aseptic inflammation in the por tal vein wall and adjoining tissue [1,2]; (3) graded stenosis of the portal vein by intraluminal devices [3]; (4) graded stenosis of the portal vein by extraluminal devices [4, 6, 8j.…”