Well Bill the facts are that there are documented cases annually where people are resuscitated after they have met the definition of physical death. There have been cases this year and the difference in most is the time the person had been without breathing or signs of life. As for these people who have not yet died but, as they say, came back and have a story to tell or an experience to relate who are we to tell them what they saw and experienced was not real? Frankly we just don't know for it didn't happen to us.
As for the statement that it is not in the Bible being proof that NDE does not have any validity that also is not a rational statement for you, yourself, know that the Bible is silent on many things and issues in life. Just because you do not find it printed in the Scriptures does not make it potentially a viable event or happening.
As for your statement about there not being any NDE event recorded in Scripture, while I know how you will spin it, How to you reconcile your statement with John 11:38-43 and John 12:9&10. Yes this is a Miracle of Jesus but by definition Lazarus was dead and then he was raised. The dead returned to life. Although in Lazarus's situation it was a miracle of our Lord there are still those today that have been declared and perceived as dead and yet have returned to life so many would say that Lazarus was a recorded NDE in the Bible we just don't have the experiences that Lazarus related after he was returned to the physical body.