I've had the same tests as you, with the same results as you. I take 12.5 mg of Toprol XL
a day, which helps. I tried to go off it, but the PVCs came back with a vengeance. I was told by my doc that I am ok, I've got NO increased risk of sudden cardiac death (but I do worry about it like you do), and that I should just ignore these stupid PVCs (yeah, right!). I have had them all my life, even when I was a little kid.