Two years after a.femoralis auto venous bypass, ankle-shoulder index decreases from 0.8 to 0.4: Surgical Two years after a.femoralis auto venous bypass, ankle-shoulder index decreases from 0.8 to 0.4: A. Norm B. Very good operation effect C. Shunt thrombosis D. Not important E. Deep vein thrombosis Answer: C. Shunt thrombosis Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+