Cardiac arrest & resuscitation

Comparison of four clinical risk scores in comatose patients after out-of-hospital cardiac arrest

ResuscitationPublished Secondary analysis of the TTM2 randomised trial

Authors' conclusion

The TTM-, MIRACLE2- and CAHP-scores are all capable of providing objective risk estimates accurate enough to be used as part of a holistic patient assessment after OHCA of a suspected cardiac origin.

Study context

Population
Comatose patients after Out-of-hospital Cardiac Arrest (OHCA) (TTM2 trial)
Participants
1,829 patients
Comparison
MIRACLE2, Target Temperature Management (TTM), Cardiac Arrest Hospital Prognosis (CAHP) and OHCA risk scores
Primary endpoint
Discrimination (AUROC) for poor functional outcome or death (modified Rankin Scale 4-6)
Follow-up
6 months after OHCA
Methodological detailspost-hoc analysis, multiple imputation for missing data
  • Post-hoc analysis
  • Multiple imputation for missing data

Primary result

As reported in the abstract

AUROC for poor functional outcome or death · 6 months
GroupPooled AUROC
MIRACLE20.810 (95% CI 0.790-0.828)
TTM0.835 (95% CI 0.816-0.852)
CAHP0.820 (95% CI 0.800-0.839)
OHCA0.770 (95% CI 0.748-0.791)

Pooled AUROC

MIRACLE20.810 (95% CI 0.790-0.828)
TTM0.835 (95% CI 0.816-0.852)
CAHP0.820 (95% CI 0.800-0.839)
OHCA0.770 (95% CI 0.748-0.791)

Further findings

Sensitivity at cut-offs for specificity >95%

Sensitivities <40% for all four scores at specificities >95%

Original publication

Comparison of four clinical risk scores in comatose patients after out-of-hospital cardiac arrest. Resuscitation. Published 25 August 2023. doi:10.1016/j.resuscitation.2023.109949

Composed by AI from the published abstract and checked against it. How Briefs are made →

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