Cardiac arrest & resuscitation
Re‐arrest immediately after return of spontaneous circulation: A retrospective observational study of in‐hospital cardiac arrest
Authors' conclusion
The immediate risk of re-arrest was approximately 2% per minute, with the highest risk occurring as a reversion to VF/VT if ROSC was obtained from VF/VT. The risk of re-arrest within 20 min of the initial arrest was 27%, and the overall risk of at least one re-arrest per episode was 33%.
Study context
- Population
- In-hospital cardiac arrest (IHCA) episodes with return of spontaneous circulation (ROSC), four datasets of defibrillator recordings, 2002–2022
- Participants
- 763 IHCA episodes
- Outcome
- Immediate (1-min) and short-term (20-min) risks of re-arrest (resumption of chest compressions after a period of ROSC)
Methodological detailsparametric models, defibrillator recordings
- Parametric models
- Defibrillator recordings
Main finding
As reported in the abstract
Risk of re-arrest
- Re-arrests observed
- 316
- Re-arrest to pulseless electrical activity (PEA)
- 68%
- Re-arrest to VF/VT
- 25%
- Re-arrest to asystole
- 7%
- ROSC from non-shockable rhythm: re-arrest to non-shockable rhythm, initially (per minute)
- 2%
- ROSC from non-shockable rhythm: re-arrest to non-shockable rhythm after 9 min (per minute)
- 1%
- ROSC from non-shockable rhythm: re-arrest to VF/VT, constant (per minute)
- 2%
- ROSC from shockable rhythm: re-arrest to shockable rhythm, initially (per minute)
- 5%
- ROSC from shockable rhythm: re-arrest to shockable rhythm after 9 min (per minute)
- 4%
- ROSC from shockable rhythm: re-arrest to non-shockable rhythm, constant (per minute)
- 1%
- Risk of re-arrest within 20 min
- 27%
- Overall risk of at least one re-arrest per episode
- 33%
Observational data: associations, not effects.
Original publication
Re‐arrest immediately after return of spontaneous circulation: A retrospective observational study of in‐hospital cardiac arrest. Acta Anaesthesiol Scand. Published 18 December 2024. doi:10.
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