Acute cardiac care & resuscitation

Duration of cardiopulmonary resuscitation and phenotype of post-cardiac arrest brain injury

ResuscitationPublished Prospective cohort study

Authors' conclusion

Brain injury phenotype is related to CPR duration, which is a surrogate for severity of HIBI. The sequence of most likely primary HIBI phenotype with progressively longer CPR duration is awake, coma without BSIB or edema, BSIB, and finally cerebral edema.

Study context

Population
Patients resuscitated from in- or out-of-hospital cardiac arrest, January 2010 to January 2020
Participants
545 / 1,065 / 548 / 438
Exposure
Brain injury phenotypes by cardiopulmonary resuscitation (CPR) duration
  • Awaken = 545
  • Non-malignant coman = 1,065
  • Burst suppression with identical bursts (BSIB)n = 548
  • Cerebral edeman = 438
Outcome
Primary hypoxic ischemic brain injury (HIBI) phenotype on presentation by CPR duration
Methodological detailsprospective registry, in- and out-of-hospital cardiac arrest
  • Prospective registry
  • In- and out-of-hospital cardiac arrest

Main finding

As reported in the abstract

CPR duration
Overall median CPR duration
16 [IQR 8-28] minutes

Observational data: associations, not effects.

Further findings

Phenotype distribution

Phenotype distribution

Predicted probability of phenotype changes over time

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Duration of cardiopulmonary resuscitation and phenotype of post-cardiac arrest brain injury. Resuscitation. Published 8 May 2023. doi:10.1016/j.resuscitation.2023.109823

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

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