I was told by our NO at one of the best research facilities in the world that once the dementia sets in, it does not come back because as the radiaiton burns the good tissue of the brain, it cannot regenerate.
My wife started going downhill on January the 6th (our last dinner together, our las conversation together was on January 4th for all practical purposes, I count as her death date)
If you go back into the archives you can read her story and it may be in this thread although hers was not whole brain radiaiton.
it was explained to me as approximately 3cm beyond the size of the tumor..
For awhile I will say that I too had to wheel her around the house in a wheelchair....but luckily her leg went bad, her right leg..it just stopped working around November 2011.
We got her an AFO for that right leg and that allowed her (along with a 4-pronged cane) to sort of walk around the house, this once highly active and vvacious lady now looking like a walking zombie or sort of like Boris Karloff in the mummy.
At this point, she is not my wife, but this living, breathing, eating and pooping machine whose diapers (pull ups) I have to change 8 or 10 times or more a day.
Sometimes ,i look on this site and someone writes in and says they have GBM and their writings on the site are in perfect paragraphs and spelling and they are still on this earth, you can tell in the structure and content of their writing.
My wife on the other hand was given a machine called "lindgraphica" which allows someone to communicate by looking at pictures...
When my wife uses it, she'll just start hitting all the pictures, not understanding or answering any question you may give her..just hit the butons and giggle and it reminds me of Barney fife giving the town drunk a driving test on the Andy Griffith Show...
I can recall the concern that the great white lab coated geniuses gave my wife when her mind was there like those on this site with the ability to write a paragraph as they tell their GBM story, the sky was the limit, they all knew her name and the alarm bells sounded in it's urgency to treat her...
After the cognition problems came, the great white lab coated geniuses, asked ME if I thought I could find her some therapy (sure doc, I'm a runner, I could find her some therapy!!) that's when I knew the lines had been cut and we were on our own....
Once the cognizence leaves....it's over....
Big in the news today was a story about two men who helped people die, like Dr. Kevorkian did..People were outraged at what they did, but I sure don't see it that way...Dr. K and they were HEROES..
I don't have the moral courage to seek that help for my wife, I keep taking her to her treatments, changing her diapers and watching her traverse the room like a ghost with a black eye (from a fall two days ago)
Why the avastin treatments? Why the CCNU? I just can't do the right thing.