Cardiac arrest & resuscitation
Determinants of survival in sudden cardiac arrest manifesting with pulseless electrical activity
Authors' conclusion
Key determinants for survival from PEA-SCA were young age, witnessed status, public location and pre-existing COPD/asthma. Survival outcomes in witnessed PEA cases were better than expected, even with delayed EMS response.
Study context
- Population
- Out-of-hospital sudden cardiac arrests (SCA) with pulseless electrical activity (PEA) as presenting rhythm and emergency medical services (EMS)-attempted resuscitation; Portland, OR metro area (2002–2017) and Ventura County, CA (2015–2021)
- Participants
- 1,704 PEA-SCA cases
- Exposure
- PEA-SCA survivors vs non-survivors
- Survivorsn = 173
- Non-survivorsn = 1,531reference
- Outcome
- Predictors of survival from PEA-SCA
Methodological detailscommunity-based, 2 ongoing prospective studies (Oregon SUDS, Ventura PRESTO)
- Community-based
- 2 ongoing prospective studies (Oregon SUDS, Ventura PRESTO)
Main finding
As reported in the abstract
Survival from PEA-SCA
- Overall survival
- 10.2%
- Survival, healthcare unit location
- 16.9%
- Survival, public location
- 18.1%
- Survival, home
- 9.3%
- Survival, care facility
- 5.7%
Observational data: associations, not effects.
Further findings
Survival in witnessed cases with EMS response time >10 minutes
- Survival rate
- 10%
Original publication
Determinants of survival in sudden cardiac arrest manifesting with pulseless electrical activity. Resuscitation. Published 18 April 2023. doi:10.
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