When you're on a blood thinner, it's a dreadful problem. You continue to bleed much more, and over a longer period of time.

It sounds like this was a massive bleed, it sounds like he progressed rapidly to coma within the first couple of hours and I think the move to operate indicates that they were doing everything that they felt they could. It also indicates a certain measure of desperation.

It's probably Vanderbilt blood. I don't bleed.

The decision to put him on a blood thinner is a little questionable. I don't know the details of this case, but the use of blood thinners to prevent ischemic strokes [those caused by clots] has been challenged by several studies. It is a curious decision.

If it was a massive stroke, this was a desperate attempt to save his life.

You're more likely to die and, if you live, you're left with a more severe deficit.