Evaluating the Effectiveness of Dispatch-Assisted CPR Instructions
Author Information
Author(s): Christian Vaillancourt, Manya L Charette, Ian G Stiell, George A Wells
Primary Institution: Ottawa Health Research Institute
Hypothesis
Can dispatch-assisted CPR instructions improve bystander CPR rates and survival for out-of-hospital cardiac arrest victims?
Conclusion
The study found that dispatch-assisted CPR instructions significantly increased bystander CPR rates from 16.7% to 26.4%.
Supporting Evidence
- Before the introduction of dispatch-assisted CPR instructions, bystander CPR rates were only 16.7%.
- After the introduction, bystander CPR rates increased to 26.4%.
- Dispatch Officers recognized 56.0% of cardiac arrest cases.
- Agonal breathing was present in 37.0% of all cardiac arrest cases.
Takeaway
This study shows that giving CPR instructions over the phone can help more people survive a heart attack.
Methodology
The study used a before-after, prospective cohort design to evaluate 9-1-1 calls related to out-of-hospital cardiac arrests in 19 urban communities.
Potential Biases
Potential bias in the accuracy of dispatchers diagnosing cardiac arrest over the phone.
Limitations
The study may not generalize to rural areas or communities without similar dispatch systems.
Participant Demographics
Mean age of victims was 68.3 years, with 66.7% male.
Statistical Information
P-Value
0.006
Confidence Interval
95% CI 8.5–11.3%
Statistical Significance
p = 0.006
Digital Object Identifier (DOI)
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