If Blood thinning is needed, Vodka may be the answer. Check out dog/vodka story http://au.news.yahoo.com/nsw/a/21872763/poisoned-dog-saved-by-bottle-of-vodka/
I hope all is well.
As a follow up, Ebi lived about a year after her operation, but not without complication and variable health. Although she had many good times in her extra year, i would be reluctant to put another hen through the ordeal.
Watermelon moment
Hi! She's a lavender bearded silkie, which i guess is a mix of colors to arrive at her splash coloring, but otherwise all silkie. Frosty lives a messy free-range life in the garden, but this was taken after a bath :)