Production of Nonsurgical Portosystemic Venous Shunts in Dogs by Transjugular Approach

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Abstract
Intrahepatic shunts between the left portal and hepatic veins were made in 50 dogs (20 acute, 30 chronic experiments) using the transjugular approach with Dotter''s coaxial catheter system after portal hypertension was produced by Gelfoam embolization. Shunts were occluded within 2 days; complications arose only after a shunt stayed in the animal a prolonged period. The intrahepatic tract wall was completely organized and fibrosed around the catheter after 3 wk. [This was studied in relation to the permanent reduction of portal pressure in the treatment and prevention of bleeding gastroesophageal varices secondary to intrahepatic portal hypertension.].

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