I do not know exactly when yet, but it will prob be after July. They are going to need to replace my heart valve, and I am really scared. They tell me this problem came from the rheumatic fever I had when I was in 4th grade. The doctor is thinking I should get a mechanical valve. The upside, I will most likely never need it replaced again, and no poor animal has to die to make it. The downside, a mechanical valve, means I will be on warfarin the rest of my life. I was kinda hoping to be able to change to a diff blood thinner after the tee. Guess that goes out the window. If I had a bio one put in, I would not need the blood thinner, but that would only last 10 or 15 years. I really do not think i want to do this again at 75 or 80.