Attrition of skills after basic life support (BLS) training is common. Psychology studies have established that for basic memory recall tasks, spaced learning strategies improve retention. Spaced learning is often organized as a refresher or 'booster' course after initial training. This study aims to investigate if this principle holds true for BLS skills, which require rapid memory recall and efficient deployment of procedural skills while under time pressure.
Novice laypeople who have not received BLS training in the 6 months leading up to the date of participation will be recruited from the University of Ottawa and the general public. Participants will be randomized into one of three groups: early booster, late booster, or no booster (control). Currently, no booster is the educational standard. The early booster group will receive a booster at 3 weeks, the late booster at 2 months, and no booster for the control. All participants will undergo BLS training, an immediate post-test, and a retention post-test at 4 months. Post-tests involve a simulated cardiac arrest scenario. Raters will be blinded to the group allocation and simulation test order.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
95
The early booster group will receive a booster teaching session at 3 weeks post-training followed by feedback.
The late booster group will receive a booster teaching session at 2 months post-training followed by feedback
The Ottawa Hospital
Ottawa, Ontario, Canada
Basic Life Support performance, as measured by the standardized Heart and Stroke Heartsaver checklist
BLS performance, as measured by the standardized Heart and Stroke Heartsaver checklist
Time frame: 4 months
Time to start chest compression;
Time from entering the scene to initiation of compression (in seconds)
Time frame: 4 months
Accuracy of compression depth
Percentage of compressions that are deep enough
Time frame: 4 months
Compression ratio
The percentage of time during the scenario that compressions are done
Time frame: 4 months
Hand position
The percentage of time the hand position is correct
Time frame: 4 months
Tidal volume
Mean tidal volume (ml)
Time frame: 4 months
Ventilation success rate
The percentage of time ventilations are done with adequate volume 400-700mls
Time frame: 4 months
Time to defibrillation using AED.
Time from start to defibrillation using AED (in seconds)
Time frame: 4 months
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