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Bystander performance using the 2010 vs 2015 ERC guidelines: A post-hoc analysis of two randomised simulation trials
Dung Thuy Nguyen1,2, Kasper Glerup Lauridsen1,2,3,4, Kristian Krogh1,5
1Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark.
Resuscitation Plus
|July 5, 2021
Summary
The simplified 2015 basic life support (BLS) guidelines improved adherence to the BLS/automated external defibrillator (AED) algorithm sequence three months post-training. Skill performance immediately after training was not significantly improved.
Area of Science:
- Emergency Medicine
- Cardiopulmonary Resuscitation
- Medical Education
Background:
- The European Resuscitation Council (ERC) updated basic life support (BLS) guidelines in 2015, simplifying them from the 2010 version.
- This study evaluated the impact of these guideline changes on BLS/automated external defibrillator (AED) skill performance and retention.
Purpose of the Study:
- To compare BLS/AED skill performance and retention between laypersons trained with the 2010 ERC BLS guidelines versus the 2015 ERC BLS guidelines.
- To assess the long-term effectiveness of simplified BLS/AED protocols.
Main Methods:
- A post-hoc analysis of two randomized simulation trials involving laypersons trained in BLS/AED.
- Participants (N=140) were tested on skill performance and retention immediately after training and at three months, using either 2010 or 2015 BLS guidelines.
- Outcomes included correct sequence of the BLS/AED algorithm, complete skill performance, and time to critical actions (EMS call, compressions, defibrillation).
Main Results:
- Three months post-training, the 2015 BLS group showed significantly better adherence to the correct sequence of the BLS/AED algorithm (41% vs. 16%, aOR 5.6).
- Correct sequence with all skills performed correctly was also significantly higher in the 2015 group at three months (16% vs. 5%, aOR 4.8).
- Immediate post-training performance showed no significant difference in algorithm sequence or complete skill performance between groups, though the 2015 group had a shorter time to EMS call.
Conclusions:
- The simplified 2015 BLS guidelines enhance long-term retention of the BLS/AED algorithm sequence compared to the 2010 guidelines.
- While immediate skill acquisition was not significantly improved, the 2015 guidelines demonstrate better sustained performance in a simulated cardiac arrest scenario.
- These findings support the adoption of simplified BLS/AED guidelines for improved layperson resuscitation efforts.
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