Enginama, If I had one artery stented after MI and had three others at 80%, I'd still look into why Bill Clinton finally gave in a did nearly the full plan that those doctors recommended.
He had a bypass and then it began to reblock afterwards. He had to go back in for more treatment.
He gave in and went all the way.
You might give those 4 doctors a read, then decide if you are doing enough or if your numbers, including total cholesterol, are low enough for a person in your situation with 3 or 4 at 80%.
Dean Ornish (who has published studies to back him up regarding heart disease)
Dr. Caldwell Esselstyn
Dr. Neal Barnard
Dr. Joel Fuhrman
Look at the results of the famous decades long Framingham Study.
Good luck, get well informed. Often time reading a few books on the subject increases one's motivation to stay on the most beneficial eating program.
Kind of a deliberate self indoctrination.