XXXX Model of Hemodialysis Arteriovenous Fistula Using Superficial Veins.

@entity1 @entity1707 @entity2548 @entity742
UNASSIGNED: Current models of @entity2548 ( @entity2548 ) are @entity1707 models of femoral vein terminolaterally anastomosed to femoral artery, creating a deep @entity2548 . This feature sets it aside from @entity1 AVFs using superficial veins. Our @entity2548 model uses @entity742 superficial veins to create an @entity2548 almost identical to @entity1 model. AVFs were created in six @entity742 using basilic veins sutured terminolaterally to brachial artery. Presurgery vein and artery diameters were measured. We measured AVFs and feeding arteries blood flows and diameters at 1, 3, and 5  weeks postsurgery. At 5  weeks we performed angiograms, euthanized animals, and harvested AVFs. Four animals completed the study. Three AVFs developed and were patent at 5  weeks; one thrombosed. Animal weight and presurgery vessels diameters predicted AVFs blood flows and diameters. Despite using vessels with diameters smaller than the ones recommended for @entity1 @entity2548 , the Fistulas developed. Two animals died before the study conclusion for causes unrelated to surgery. This @entity2548 model is anatomically almost identical to the @entity1 @entity2548 and has a good maturation rate. It is a viable model for studying @entity2548 maturation, devices intended to improve @entity2548 maturation, @entity2548 related procedures and can even support hemodialysis needles.
