Going tomorrow morning for a heart cath. I've been trying to get both knees replaced for several years and each time I go to get cleared by my cardioligist for surgery,(too many stess tests that showed ok but wasn't, so I have to have caths) I've had to have a stent or stents. I have 8 so far. My DR. says I can't go off Plavix(type of blood thinner) for 12 months because of chance of clotting. And I have to be off of thinner type meds for the knee surgery. Anyway maybe this will be the year, because it is getting harder and harder to get around. Fingers crossed.Thanks