My sympathies, it must be a terrible experience.
My friend seems to recover rather quickly. Now has been extubated, can eat and speak. He recognize his family, friends, reminds memories of vacations, his interests for music, gardening, theater, is able to do some humor (very important), so, basically, he recovered what I would call his "personnality". That's a huge relief.
What is still unknown are how his physical abilities will be affected, if he will have trouble to walk again, etc... For now he his too weak to test that (well, his heart is too weak, else he is in fair condition), so it will take some time.
He is still in intensive care of the cardiology service, now the medics are really focusing on finding ways to restore the heart capacity and find a way to prevent this accident to happen again, which this time would be fatal.
So rather good news, really :jiggy: