Eligibility:

Absence of pulse

Unresponsiveness

Apnea

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Exclusion:

Patients pronounced dead without attempting CPR

Obvious major trauma

Children below age 18

Prisoners

Mentally disabled

Pregnant women

Primary outcome

Return of spontaneous circulation (ROSC)

​

 

Secondary outcomes:

Survival to hospital admission

Survival to hospital discharge

Neurological (functional) status on hospital discharge

 

Definitions followed the Utstein recommendations