I can't offer prayers because....well, you know. But I can offer best wishes to both Mr. Pam and your family. I know you're not an emotional type, and you certainly don't go in for sympathy (yeah, I went there).
But, that's some scary stuff. My dad had a quadruple bypass (one short of holy shit) back in the day and heart disease runs in my family. It's one of my biggest fears and one I've so far dodged.
Mr. Pam is strong and otherwise healthy and medical science can do wonders these days.
I'll be thinking of you both over the next few days .