Yes. And yes they do chop him up for parts. And, finally, yes, this is at odds with the medical definition of brain death, which is complete cessation of brain activity, including the brain stem. The patient therefore cannot breathe on his own, i.e., without life support. For all the uproar, Karen Ann Quinlan was not brain dead.
They almost got Haleigh Poutre this way and she was not even "PVS." "Almost" PVS, they said.
Haleigh is almost PVS like I am almost the queen of England.