Cardiac arrest & resuscitation

Plasma neurofilament light is a predictor of neurological outcome 12 h after cardiac arrest

Crit CarePublished Prognostic accuracy study

Authors' conclusion

The prognostic accuracy of NfL for predicting good and poor outcomes is excellent as early as 12 h after OHCA. NfL is less reliable for the prediction of outcome after IHCA.

Study context

Population
Adults admitted to intensive care after cardiac arrest
Participants
428 adults
Comparison
Plasma neurofilament light (NfL) after out-of-hospital cardiac arrest (OHCA) vs in-hospital cardiac arrest (IHCA)
  • OHCAn = 328
  • IHCAn = 100
Outcome
Prediction of poor neurological outcome (Cerebral Performance Category (CPC) 3-5 vs good CPC 1-2) by plasma NfL, AUROC
Follow-up
Two to six months
Methodological detailsobservational multicentre cohort study, retrospective biomarker analysis, NfL retrospectively analysed in plasma collected on ICU admission, 12 and 48 h after cardiac arrest
  • Observational multicentre cohort study
  • Retrospective biomarker analysis
  • NfL retrospectively analysed in plasma collected on ICU admission, 12 and 48 h after cardiac arrest

Performance

As reported in the abstract

Prognostic performance of NfL (AUROC) at 12 and 48 h · 12 and 48 h after cardiac arrest
Test or modelAUROC 12 hAUROC 48 h
OHCA0.930.97
IHCA0.810.86

AUROC 12 h

OHCA0.93
IHCA0.81

AUROC 48 h

OHCA0.97
IHCA0.86
  • IHCA vs OHCA: P ≤ 0.03 — lower predictive ability after IHCA at 12 and 48 h

Further findings

Poor outcome rate · two to six months

OutcomeOHCAIHCA
AUROC on ICU admission · admission to intensive care
AUROC0.770.67
High NfL predicting poor outcome at 95% specificity, OHCA (subgroup) · 12 and 48 h
70 · sensitivity 12 h · sensitivity 48 h 89%
Low NfL predicting good outcome at 95% sensitivity, OHCA (subgroup) · 12 and 48 h
71 · specificity 12 h · specificity 48 h 74% · NPV 12 h 86 · NPV 48 h 88%

Original publication

Plasma neurofilament light is a predictor of neurological outcome 12 h after cardiac arrest. Crit Care. Published 24 February 2023. doi:10.1186/s13054-023-04355-3

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