Cardiac arrest & resuscitation

Discordant neuron-specific enolase and neurologic outcomes in out-of-hospital cardiac arrest: a decade-long analysis

ResuscitationPublished Retrospective cohort study

Authors' conclusion

In patients with normal NSE levels, poor outcomes appear to be driven primarily by age and systemic physiological derangements.

Study context

Population
Comatose adult out-of-hospital cardiac arrest (OHCA) survivors who underwent TTM, 2014–2024
Participants
646 survivors
Exposure
Peak neuron-specific enolase (NSE) within 72 h: normal vs intermediate vs high
  • Normaln = 193
  • Intermediaten = 182
  • Highn = 271
Outcome
Poor neurological outcome (Cerebral Performance Category 3-5)
Follow-up
6 months
Methodological detailsLASSO penalized logistic regression
  • LASSO penalized logistic regression

Main finding

As reported in the abstract

Poor neurological outcome
GroupValueSpecificity of peak NSE ≥60 μg/L for poor outcome
Normal26.4%
Intermediate71.4%
High98.5%

Value

Normal26.4%
Intermediate71.4%
High— not stated in the abstract

Specificity of peak NSE ≥60 μg/L for poor outcome

Normal— not stated in the abstract
Intermediate— not stated in the abstract
High98.5%

Observational data: associations, not effects.

Further findings

Independent determinants of poor outcome, Normal NSE (subgroup)

Older age, non-shockable rhythm, non-cardiac etiology, higher PaO2 and elevated lactate

Independent determinants of poor outcome, Intermediate NSE (subgroup)

Non-shockable rhythm, higher initial SOFA scores and lower gray-to-white matter ratio on brain CT

Original publication

Discordant neuron-specific enolase and neurologic outcomes in out-of-hospital cardiac arrest: a decade-long analysis. Resuscitation. Published 13 July 2026. doi:10.1016/j.resuscitation.2026.111205

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