• Camilla Hansen, Camilla Bang, Stinne Eika Rasmussen, Mette Amalie Nebsbjerg, Kasper G Lauridsen, Katrine Bjørnshave Bomholt, Kristian Krogh, and Bo Løfgren.
• Research Center for Emergency Medicine, Aarhus University Hospital, Palle Juul-Jensens Blvd. 161, 8200 Aarhus, Denmark; Department of Internal Medicine, Randers Regional Hospital, Skovlyvej 15, 8930 Randers, Denmark; Clinical Research Unit, Randers Regional Hospital, Skovlyvej 15, 8930 Randers, Denmark.
• Am J Emerg Med. 2020 Apr 1; 38 (4): 720-726.

IntroductionBasic life support (BLS) and the use of an automated external defibrillator (AED) improve survival from cardiac arrest. The gold standard for teaching BLS/AED is yet to be identified. The aim of this study was to compare the learning outcome of an instructor-led demonstration with a formal lecture for introducing BLS/AED skills. We hypothesized that a demonstration was superior to a lecture.MethodsFirst year-medical students were randomised to either a demonstration or a lecture using PowerPoint® Presentation for skill introduction during European Resuscitation Council BLS/AED courses. Participants were skill-tested after training and required to perform all skills correctly to pass the test. Finally, all participants were asked to state their preferred teaching method.ResultsOverall, 247 participants were included in the analysis (demonstration group: 124, lecture group: 123). Pass rate was 63% in both groups, p = 1.00. Both groups performed median compression rates within guidelines recommendations, p = 0.09. Mean compression depth was 55 mm (10 mm) in the demonstration group compared with 52 mm (10 mm) in the lecture group, p = 0.05. Median tidal volume was 265 (192, 447) ml and 405 (262, 578) ml, p < 0.001, respectively. The lecture group was 3 s faster at initiating BLS, p < 0.001. In total, 226 (91%) participants preferred demonstration on a manikin for introducing BLS/AED.ConclusionThere was no statistically significant difference in pass rate when comparing a demonstration with a lecture for introducing BLS/AED. The lecture group was slightly faster at initiating BLS. Most participants preferred a demonstration as introduction.Copyright © 2019 Elsevier Inc. All rights reserved.

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