The effect of carbon dioxide on near-death experiences in out-of-hospital cardiac arrest survivors
Zalika Klemenc-Ketis, Janko Kersnik, Stefek Grmec · 2010 · Critical Care, 14, R56
Summary
Prospective observational study of out-of-hospital cardiac-arrest survivors reporting an association between higher carbon dioxide levels and NDE reports.
Why it matters here
Important physiological counter-evidence because it connects NDE reports to measurable blood-gas variables rather than relying on a purely speculative brain model.
Linked claims
Hypoxia, hypercarbia, REM intrusion, endogenous DMT, and ketamine models reproduce many NDE features. Veridical cases resist the model.
A handful of veridical NDE cases are striking. The leap from 'unexplained by current models' to 'proof of afterlife' is large.
A consistent core experience — peace, light, life review, OBE — reported across cultures and prospective hospital studies.
Related evidence hubs
Evidence around dying, near-death experience, and what (if anything) continues.
Cryptomnesia, anoxia models, cold reading. Counter-anchors.
Structured experiences during cardiac arrest and crisis.
Whether anything of mind continues.
The nature of subjective experience.