Here is an article matching this discussion I remember someone posted before.
I’m on blood thinners too and I think that helps a bit. I’m also a bit concerned about possible thrombosis. Actually I’m on Xa-Factor inhibitors (Rivaroxaban) for blood thinning again.
Here in Europe doctors usually won’t prescribe thrombocyte aggregation inhibitors like aspirin or clopidrogel. It is said that those probably won’t work on the venous side. In US it seems still working though. Personally I can confirm positive effects of aspirin too. Unfortunately I can’t take that all the time because of side effects. I never tried clopidrogel (plavix). Maybe that’s only marketing from pharmaceutical industry here in Europe promoting new anticoagulants. 
What do you think about blood thinners? Would be interesting to hear what US doctors think about Xa-Factor Inhibiton.