Abstract
BackgroundThe aim of this trial was to compare a video- and a simulation-based teaching method to the conventional lecture-based method, hypothesizing that the video- and simulation-based teaching methods would lead to improved recognition of breathing patterns during cardiac arrest.MethodsIn this Danish, investigator-initiated, stratified, randomised controlled trial, adult laypersons (university students, military conscripts and elderly retirees) participating in European Resuscitation Council Basic Life Support courses were randomised to receive teaching on how to recognise breathing patterns using a lecture- (usual practice), a video-, or a simulation-based teaching method. The primary outcome was recognition of breathing patterns in nine videos of actors simulating normal breathing, no breathing, and agonal breathing (three of each). We analysed outcomes using logistic regression models and present results as odds ratios (ORs) with 95% confidence intervals (CIs) and P-values from likelihood ratio tests.ResultsOne hundred fifty-three participants were included in the analyses from February 2, 2018 through May 21, 2019 and recognition of breathing patterns was statistically significantly different between the teaching methods (P = 0.013). Compared to lecture-based teaching (83% correct answers), both video- (90% correct answers; OR 1.77, 95% CI: 1.19–2.64) and simulation-based teaching (88% correct answers; OR 1.48; 95% CI: 1.01–2.17) led to significantly more correct answers. Video-based teaching was not statistically significantly different compared to simulation-based teaching (OR 1.20; 95% CI: 0.78–1.83).ConclusionVideo- and simulation-based teaching methods led to improved recognition of breathing patterns among laypersons participating in adult Basic Life Support courses compared to the conventional lecture-based teaching method.
Highlights
Agonal breaths are irregular and slow rasping respirations, frequently with a characteristic snoring sound as if the patient is gasping for air [1]
Trial population From February 2, 2018 through May 21, 2019, we assessed 167 course participants enrolled in an European Resuscitation Council (ERC) Basic Life Support (BLS) course through the organisations listed above for eligibility (Fig. 1)
Two participants had to leave before the test, and one participant in the video group saw the video twice and was erroneously not tested
Summary
Agonal breaths are irregular and slow rasping respirations, frequently with a characteristic snoring sound as if the patient is gasping for air [1]. It is present in approximately 40 to 60% of victims during the first minutes of cardiac arrest [2,3,4]. The development of more effective methods for teaching laypersons how to recognise agonal breathing has the potential to improve outcomes in patients with cardiac arrest initially presenting with agonal breathing. The aim of this trial was to compare a video- and a simulation-based teaching method to the conventional lecture-based method, hypothesizing that the video- and simulation-based teaching methods would lead to improved recognition of breathing patterns during cardiac arrest
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