I had a big accident a few years ago, the write up is here:
http://www.deepdiving.net/incident.html
The treatment has been written up in medical journals, and is very famous in its field.
As far as near death experiences, no, there was no shining light, or deity appearance,
just lots of pain, fear, then resignation and peace. Then there was a chance, and that's
when the fighting started.
Cheers,
Jason.