Abstract 107: Teaching Basic Life Support: Randomized Controlled Study With “Media-Supported 4-Step-Approach”
Introduction: Quality of external chest compressions (ECC) is of paramount relevance within Basic Life Support (BLS). Recent Guidelines recommend the so called 4-Step-Approach for teaching practical skills within resuscitation training applied by a certified instructor. Because of the fact that transfer of standardized content is essential, we developed a new course format using media-support as an alternative for Steps 1 to 3.
Hypothesis: In this study we observed if a “media supported 4-Step-Approach” for BLS-Training leads to comparable practical performance in respect of retention of skills.
Methods: Laypersons were randomized and either trained using the standard method used in BLS-courses (4-Step-Approach, S: n=32) or using media-supported 4-Step-Approach (M: n=34) lasting the same course duration. All were tested on a manikin (Skillreporter ResusciAnne® with PC SkillReporting Software (Version 1.3.0), Laerdal, Stavanger, Norway) in the same cardiac arrest mock scenario prior to BLS-course, after one week and after six months with each time 2 min of continuous ECC. Primary endpoints: compression rate; compression depth; correctness of the BLS-algorithm (>80%).
Results: Subjects (age 32±7.2, male 72%) reached after six months >80% correct compression depth (S: 46.9% vs. M: 85.3%) and >80% of BLS-algorithm (S: 34.4% vs. M: 52.9%) remarkably better in the intervention group. The mean compressions/min (absolute number) were also significantly higher (S: 75.3 vs. M: 81.0; p<0.05) as well as mean compression rate/min (S: 111.3 vs. M: 117.1; p<0.05).
Conclusions: The media-supported 4-Step-Approach leads to comparable retention of skills after six months and is able to improve adherence to BLS-algorithm recommendation as well as performance of compression depth and rate. Therefore this approach could be useful in special educational settings where e.g. instructors' resources are running short.
- © 2010 by American Heart Association, Inc.