You haven't said whether you've quit smoking or not! For this post 
I'll assume that your heart problem is entirely due to smoking and not 
to other dietary, genetic or lifestyle factors...
Until recently I smoked a pipe, inhaling massive doses of tar and 
nicotine. This had been a 30-year habit.
I was able to easily quit by switching to Nicorette gum which is 
available without prescription.  I'm down to about four 2-mg pieces a 
day.
In my opinion the gum is better than patches because you have to learn 
to control it and it provides relief for the oral-gratification 
cravings.
I still don't like this oral-gratification habit but it's certainly 
better than polluting lungs and heart.
Mark Crosby