Cardiac arrest & resuscitation

Alveolar Ventilation Efficiency Assessed via Capnography is Associated with Improved Outcomes in Pediatric Cardiac Arrest

Am J Respir Crit Care MedPublished Prospective cohort study

Main finding · Survival to hospital dischargeResult — go to the resultAdjusted relative risk 1.53 95% CI 1.03–2.28

Authors' conclusion

In this multicenter study, an AOI ≥0.35 was associated with improved survival outcomes.

Study context

Population
Children (≤18 years) with invasive airways and capnography data during cardiopulmonary resuscitation (CPR)
Participants
99 events
Exposure
Event-level average airway opening index (AOI) ≥0.35 vs <0.35
Outcome
Survival to hospital discharge
Methodological detailsmulticentre, observational, sensitivity analysis excluding E-CPR
  • Multicentre
  • Observational
  • Sensitivity analysis excluding E-CPR

Main finding

As reported in the abstract

Adjusted relative risk

1.53

95% CI 1.03–2.28

P = 0.04

AOI ≥0.35 vs AOI <0.35
aRR 1.53 (95% CI 1.03–2.28); P = 0.04

Observational data: associations, not effects.

Further findings

OutcomeaRR (95% CI)P value
Favorable neurological outcome1.56 (1.01–2.41)P = 0.04

Peak arterial lactate after return of circulation

P = 0.006

CPR duration

P = 0.64

AOI during pediatric CPR (all events)

Median AOI
0.38 [0.25, 0.53]

Original publication

Alveolar Ventilation Efficiency Assessed via Capnography is Associated with Improved Outcomes in Pediatric Cardiac Arrest. Am J Respir Crit Care Med. Published 19 September 2026. doi:10.1093/ajrccm/aamag476

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