Sorry to hear of your loss. I flew about 1 1/2 months after my accident (no cardiac issues, though) but I was on both Valium and Vicoden at the time, so I mostly slept. I don't recall having trouble with the pressure, but I did take cold packs in a small ice chest for my neck. I do remember not liking the jostling of the plane on my neck, too.

Please do as Mark in Idaho suggests and ask the cardiologist for any chance of travelling with some compensations like oxygen.

Again, so sorry for your loss. I'll keep you and your family in my prayers. M-i-m