Acute cardiac care & resuscitation

The peak end-tidal carbon dioxide concentration recorded during cardiopulmonary resuscitation as an indicator of survival: a nationwide cohort study of pediatric out-of-hospital cardiac arrests

ResuscitationPublished nationwide, population-based cohort study

Authors' conclusion

Further studies are necessary to clarify the use of ETCO2 in optimizing pediatric ALS.

Study context

Population
Patients under 18 years of age with trauma-related or medical out-of-hospital cardiac arrest (OHCA)trauma-related 226 (19%) · medical 983 (81%)
Participants
1,209 pediatric OHCAs
Exposure
Highest ETCO2 recorded during advanced cardiopulmonary resuscitation as a predictor of return of spontaneous circulation (ROSC) and d30 survival (AUROC; Youden index for optimal cut-off)
  • Trauma-related OHCAn = 226
  • Medical OHCAn = 983
Outcome
Return of spontaneous circulation (ROSC) and day (d)30 survival; discriminant ability of highest ETCO2
Follow-up
D30
Methodological detailsFrench RéAC OHCA registry, 2011 to 2023
  • French RéAC OHCA registry
  • 2011 to 2023

Main finding

As reported in the abstract

GroupAUROC [95% CI] for ROSCAUROC [95% CI] for d30 survivalOptimal cut-off for ROSCOptimal cut-off for d30 survival
Trauma-related OHCA0.808 [0.745-0.872]0.854 [0.761-0.947]21 mmHg29 mmHg
Medical OHCA0.803 [0.774-0.831]0.732 [0.676-0.787]27 mmHg26 mmHg

AUROC [95% CI] for ROSC

Trauma-related OHCA0.808 [0.745-0.872]
Medical OHCA0.803 [0.774-0.831]

AUROC [95% CI] for d30 survival

Trauma-related OHCA0.854 [0.761-0.947]
Medical OHCA0.732 [0.676-0.787]

Optimal cut-off for ROSC

Trauma-related OHCA21 mmHg
Medical OHCA27 mmHg

Optimal cut-off for d30 survival

Trauma-related OHCA29 mmHg
Medical OHCA26 mmHg
ROSC achieved
347 (29%)
d30 survival achieved
61 (5%)

Observational data: associations, not effects.

Further findings

Median [interquartile range] age
6 [0;14] years

Original publication

The peak end-tidal carbon dioxide concentration recorded during cardiopulmonary resuscitation as an indicator of survival: a nationwide cohort study of pediatric out-of-hospital cardiac arrests. Resuscitation. Published 29 April 2025. doi:10.1016/j.resuscitation.2025.110626

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

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