I would think someone in the organization would have released it after Andrew's death.
I don't know about the blockage, but I read he suffered from cardiomegaly — an enlarged heart. I believe someone close to him said Andrew had had a prior heart attack. Don't know if there was evidence of it in the autopsy.
My mother had an 85% blockage on three ‘sides’ of her heart and walked in to the hospital for exploratory surgery.
She lived.
As for the videos, NO ONE is saying. (I guess there’s more than one)
Orson Bean was Andrews FIL, I think. He said shortly after Andrew’s death that there’d been no problem.
After the coroner’s assistant up and died, EVERYONE’s stories changed.
Here: https://www.youtube.com/watch?v=-fRQ2lIQ3Lg
https://www.youtube.com/watch?v=-fRQ2lIQ3Lg