In reply to aln:
If you ever get involved in trying to resuscitate after a cardiac arrest, one of the first things you learn is that if a patient has a flat ecg tracing ( a flatline) there is no coming back and they are going to die. Also, near death experiences are just that and are of no relevance in understanding what happens when we die. I saw the original film and considered it utter tosh, I shall not bother with the remake.