I have been on Paradaxa since it became availabe, but now I am having problems with a swollen leg and am seeing a vascular doctor. I have had one procedure done on my leg and in about a week a follow-up appointment. He keeps asking me how long I have been on the Paradaxa. My heart doctor put me on the Paradaxa because I have afib. I am beginning to wonder if the Paradaxa could have caused the vascular problem. Back in 2005 when I had back surgery that had to be redone 2 years later, I had a DVD in the leg that I am having problems with now. I am wondering if they are related.