Clin Exp Emerg Med.  2020 Sep;7(3):206-212. 10.15441/ceem.20.022.

Long-term benefits of chest compression-only cardiopulmonary resuscitation training using real-time visual feedback manikins: a randomized simulation study

  • 1Department of Emergency Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
  • 2Department of Emergency Medicine, Kyungpook National University School of Medicine, Daegu, Korea
  • 3Department of Medical Informatics, Kyungpook National University School of Medicine, Daegu, Korea
  • 4Department of Medical Statistics, Daegu Catholic University School of Medicine, Daegu, Korea
  • 5Department of Emergency Medicine, Yeungnam University College of Medicine, Daegu, Korea


Cardiopulmonary resuscitation (CPR) education with a feedback device is known to result in better CPR skills compared to one without the feedback device. However, its long-term benefits have not been established. The purpose of this study was to evaluate the long-term CPR skill retention after training using real-time visual manikins in comparison to that of non-feedback manikins.
We recruited 120 general university students who were randomly divided into the real-time feedback group (RTFG) and the non-feedback group. Of them, 95 (RTFG, 48; non-feedback group, 47) attended basic life support and automated external defibrillation training for 1 hour. For comparison of retention of CPR skills, the two groups were evaluated based on 2-minute chest compression performed immediately after training and at 3, 6, and 9 months. The CPR parameters between the two groups were also compared using a generalized linear model.
At immediately after training, the performance of RTFG was better in terms of average chest compression depth (51.9±1.1 vs. 45.5±1.1, p<0.001) and a higher percentage of adequate chest compression depth (51.0±4.1 vs. 26.9±4.2, p<0.001). This significant difference was maintained until 6 months after training, but there was no difference at 9 months after training. However, there was no significant difference in the chest compression rate and the correct hand position at any time point.
CPR training with a real-time visual feedback manikin improved skill acquisition in chest compression depth, but only until 6 months after the training. It could be a more effective educational method for basic life support training in laypersons.


Heart arrest; Cardiopulmonary resuscitation; Education; Manikins; Simulation training
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