I have seen the surgeon every year since the surgery. He first said it would take about 2 years for me to feel any good results from it. It's been about 6 years now and I still am out of breath from doing minimal things. last year he said "It is what it is and that i will have to just live with it. So disappointed and frustrating. I'm 72 and feel 80. I have a pace maker and take warfarin because of a mechanical valve. My surgeon was a Dr. Warren In Hot Springs, Ar.