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Time on the scene and interventions are associated with improved survival in pediatric out-of-hospital cardiac arrest
Janice A Tijssen1, David K Prince2, Laurie J Morrison3
1Division of Pediatric Critical Care Medicine, Department of Pediatrics, London Health Sciences Centre, University of Western Ontario, London, ON, Canada; The Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada.
Insights
Optimal scene time for pediatric out-of-hospital cardiac arrest survival is 10-35 minutes. Fluid resuscitation improved survival, while advanced airway and resuscitation drugs did not enhance outcomes.
Area of Science:
- Pediatric Emergency Medicine
- Cardiovascular Research
- Public Health
Background:
- Pediatric out-of-hospital cardiac arrest (OHCA) has a survival rate below 10%.
- The impact of on-scene time and advanced life support (ALS) interventions on pediatric OHCA survival is not well understood.
Purpose of the Study:
- To determine the association between on-scene time and survival in pediatric OHCA patients.
- To identify specific prehospital interventions linked to improved survival rates.
Main Methods:
- Analysis of the Resuscitation Outcomes Consortium cardiac arrest database (2005-2012).
- Inclusion of 2244 pediatric patients (3 days to 19 years) with OHCA across 11 North American regions.
- Evaluation of survival to hospital discharge based on on-scene times (<10, 10-35, >35 minutes) and interventions.
Main Results:
- Infants had the lowest survival (3.7%), while adolescents had the highest (16.3%).
- Survival was highest with 10-35 minutes on-scene time (10.2%) compared to <10 minutes (5.3%) or >35 minutes (6.9%).
- Intravenous/intra-osseous access and fluid administration correlated with improved survival; advanced airway attempts and resuscitation drugs did not.
Conclusions:
- A scene time of 10-35 minutes was associated with the highest survival rates in pediatric OHCA, particularly for adolescents.
- Fluid resuscitation was linked to better survival, whereas advanced airway procedures and resuscitation drugs showed no benefit or potential harm.
Background:
Survival is less than 10% for pediatric patients following out-of-hospital cardiac arrest. It is not known if more time on the scene of the cardiac arrest and advanced life support interventions by emergency services personnel are associated with improved survival.
Aim:
This study was performed to determine which times on the scene and which prehospital interventions were associated with improved survival.
Methods:
We studied patients aged 3 days to 19 years old with out-of-hospital cardiac arrest, using the Resuscitation Outcomes Consortium cardiac arrest database from 11 North American regions, from 2005 to 2012. We evaluated survival to hospital discharge according to on-scene times (<10, 10 to 35 and >35 min).
Results:
Data were available for 2244 patients (1017 infants, 594 children and 633 adolescents). Infants had the lowest rate of survival (3.7%) compared to children (9.8%) and adolescents (16.3%). Survival improved over the 7 year study period especially among adolescents. Survival was highest in the 10 to 35 min on-scene time group (10.2%) compared to the >35 min. group (6.9%) and the <10 min. group (5.3%, p=0.01). Intravenous or intra-osseous access attempts and fluid administration were associated with improved survival, whereas advanced airway attempts were not associated with survival and resuscitation drugs were associated with worse survival.
Conclusions:
In this observational study, a scene time of 10 to 35 min was associated with the highest survival, especially among adolescents. Access for fluid resuscitation was associated with increased survival but advanced airway and resuscitation drugs were not.
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