Moiraine, I totally agree with you that while some doctors have great skills, their "bedside" personality leave a lot to be desired.
And I totally agree with Phil&Liz....I can't state it better than that.
If the vessel can't be reopened, I strongly encourage you to consider hospice care. Someone does not have to be actively dying to be in hospice, but they do need a terminal condition and a doctor's diagnosis to qualify. I think in this case, hospice will be a great means of support for you and your Dad. They are not there just to make the patient comfortable during the dying process, they are there for the family as well, helping them through process as well. Hospice personnel are truly angels on earth.