@yorlik. I am 22yrs from my by pass surgery the Dr put me on 81mg aspirin I take one daily along with statin and b.p.pill Your attitude reflects on your condition so try to accept your afib and do as your cardiologist @surgeon says. when I had my chest cracked open then when the surgeon closed the nerves didn't align up this wasn't his fault but I had to have the anesthesiologist inject my chest it fixed the issue and it hurt but keeping a positive attitude and going on with your life I was all right 22yrs later so you will be o.k. ,relax the Dr knows what he is doing.