Acute cardiac care & resuscitation

Prehospital Prognostication after Out-of-Hospital Cardiac Arrest in Tertiary Care Centers: The R-EDByUS Score in the JAAM-OHCA Registry

ResuscitationPublished external validation

Authors' conclusion

The R-EDByUS score showed good discrimination in the JAAM-OHCA Registry, supporting its use for early risk stratification in cardiogenic OHCA even in tertiary care centers.

Study context

Population
Adult patients with presumed cardiogenic out-of-hospital cardiac arrest (OHCA) transported to tertiary care centersprehospital return of spontaneous circulation (ROSC) cohort 3,305 · ongoing cardiopulmonary resuscitation (CPR) cohort 26,040
Participants
29,345 patients
Comparison
R-EDByUS score predicting unfavorable neurological outcome at 1 month
  • prehospital ROSC cohortn = 3,305
  • ongoing CPR cohortn = 26,040
Methodological detailsregression-based score, JAAM-OHCA Registry
  • Regression-based score
  • JAAM-OHCA Registry

Performance

As reported in the abstract

Discrimination (areas under the curve) · 1 month

Areas under the curve

0.906 and 0.913

Further findings

Unfavorable outcomes among patients with a predicted probability ≥99%

Discrimination by in-hospital intervention subgroup (ongoing CPR cohort)

Discrimination was lower among patients who received PCI, TTM, or ECMO in the ongoing CPR cohort

Original publication

Prehospital Prognostication after Out-of-Hospital Cardiac Arrest in Tertiary Care Centers: The R-EDByUS Score in the JAAM-OHCA Registry. Resuscitation. Published 6 October 2026. doi:10.1016/j.resuscitation.2026.111341

Summarised from the published abstract; every number is checked against it

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