Bryan's right, Brian. I was never on Coumadin before or after my surgery. I had a 30-day supply of Plavix, to help lower the chance of clots, but three weeks out, when I called to ask if I should have it refilled, the surgical group said, "Nope. In fact, you can just throw the rest out."
Most tissue implantees never receive warfarin as an adjunct to the surgery, although they may be on it (or go on it) for other things. It is not unusual for a three-month course of Coumadin to be used after tissue valve surgery for someone who is showing a lot of atrial fibrillation, however. If the afib goes away, which it usually does, the warfarin ceases.
I am on one 81mg aspirin daily, although I am taking two a day right now because this bottle is enterically coated. My cardiologist didn't bring it up - I asked if I should start it again, because I used to take one a day before the surgery. He said I could if I wanted to. And I take Atenolol, which is a beta blocker. That's it.
Bryan's also right about this not being a "which is better" thread. As I posted much earlier in this thread - resurgery: yin; warfarin: yang. The basic reasons for tissue vs. mechanical choice have not changed. All that has been attested to is that the patient's odds (our odds) seem to be about equal for either choice.
Individual needs lead each of us to a conclusion that we feel is best for ourselves, and that, I believe, is as it should be.
Best wishes,