Acute cardiac care & resuscitation
Out-of-hospital cardiac arrest outcomes when law enforcement arrives before emergency medical services
Authors' conclusion
LE arrival before EMS and ensuring both CPR and AED application is associated with significantly improved functional survival in OHCA patients not already receiving bystander CPR.
Study context
- Population
- Adults with non-traumatic out-of-hospital cardiac arrests (OHCA) not witnessed by EMS and without bystander automated external defibrillator (AED) use, 2018–2021
- Participants
- 2,569 adults
- Comparison
- Law enforcement (LE) arrival before EMS vs no LE arrival before EMS
- Primary endpoint
- Functional survival (survival with Cerebral Perfusion Category score ≤ 2)
Methodological detailsmultivariable logistic regression, stratified by bystander cardiopulmonary resuscitation (CPR)
- Multivariable logistic regression
- Stratified by bystander CPR
Primary result
As reported in the abstract
Functional survival
Each group vs no LEAdjusted odds ratio (95% CI)
LE On-scene Only
1.28(0.47–3.45)
LE CPR Only
1.26(0.80–1.99)
LE Ideal Care
1.36(0.79–2.33)
Further findings
| Outcome | Adjusted OR (95% CI) | |
|---|---|---|
| Functional survival, patients without bystander CPR (subgroup) | 2.01 (1.06–3.81) | |
| 0.20.5125Adjusted odds ratio (log scale) |
Functional survival, patients without bystander CPR (subgroup)
- No significant associations for LE On-scene Only or LE CPR Only
Functional survival, patients with bystander CPR (subgroup)
- No significant differences by LE care
Original publication
Out-of-hospital cardiac arrest outcomes when law enforcement arrives before emergency medical services. Resuscitation. Published 11 November 2023. doi:10.
Summarised from the published abstract; every number is checked against it