Hello hikerguy62...I wish someone would study my case. I feel great(for an almost 79 year old male). I walk 7 days a week sometimes twice per day. My apartment is second floor with 14 steps which I traverse 10-12 times per day. I do have plaque presumably throughout my system but it has been there long enough to be dispersed and hard. Also time has allowed for "angiogenesis" of my heart. Look it up . It's a very well known phenomenon where the body develops alternate circulation. Sometimes good, sometimes troublesome.
I will save stents and other procedures for the day(s) when angina interferes with my life or when fatigue sets in.
That's my story and I'm sticking' with it.