Acute cardiac care & resuscitation
Non-shockable rhythms: A parametric model for the immediate probability of return of spontaneous circulation
Authors' conclusion
The immediate probability of ROSC develops differently in PEA and asystole depending on the preceding rhythm and the duration of the resuscitation attempt.
Study context
- Population
- In-hospital cardiac arrest with Pulseless Electrical Activity (PEA) or asystole
- Participants
- 770 cardiac arrest episodes
- Outcome
- Transition intensity of ROSC from PEA and asystole
Main finding
As reported in the abstract
Transition intensity to ROSC
- Primary PEA: unimodal, peak at 3 min
- 0.12
- PEA after asystole: unimodal, peak at 6 min
- 0.09
- PEA after VF/VT: high initial value at 3 min, then decreased
- 0.32
- PEA following transient Return of spontaneous circulation (ROSC): high initial value at 3 min, then decreased
- 0.26
- Initial asystole and asystole after PEA: both about
- 0.01 and 0.02
- Asystole after VF/VT: initial value, then decreased
- 0.15
- Asystole after temporary ROSC: constant
- 0.08
Observational data: associations, not effects.
Original publication
Non-shockable rhythms: A parametric model for the immediate probability of return of spontaneous circulation. Resuscitation. Published 3 July 2023. doi:10.
Summarised from the published abstract; every number is checked against it