I had a heart cath approx. 5 weeks ago. On follow up this past week, my cardiologist heard a bruit over the incision site at my right groin. He sent me for an ultrasound. When reviewing, the ultrasound tech said he didn't see any sign of an AV fistula, but he did say that he saw a small area of high velocity blood flow. The cardiologist said he didn't agree and didn't think it was a problem, that it was likely still the site healing itself, and he would recheck in 6 months. In the meantime, I'm quite worried -- if he didn't see anything worrisome, then what else could be causing the bruit? I've searched everywhere on the net and can't find anything specific to the causes of a femoral bruit, except PVD. Can the heart cath cause a blockage down my leg, and if so, how likely is this? Can these bruits be innocent and just go away on their own after a heart cath?