UPDATE***********
The bruise (hematoma) in his calf from falling when he had the attack worsened overnight and they transferred him to the Heart Institute (where he was going to have the angioplasty) to do emergency surgery to drain his leg. Angioplasty will be postponed until he recovers from his leg injury.
Poor bugger comes back from the dead and it's his leg injury from falling off a spinning bike while clipped in that's the immediate problem. Just hope this resolves quickly.