Use of a Feedback Device in Simulated Cardiopulmonary Arrest Can Improve Cardiopulmonary Resuscitation Better Than Training

Abstract Background:High-quality cardiopulmonary resuscitation (CPR) is the basis of successful cardiac arrest resuscitation, but the bystanders often perform inadequate compressions.Objective:To determine whether the use of an audiovisual feedback (AVF) device during cardiopulmonary resuscitation(CPR) training or a simulated cardiopulmonary arrest (CPA) scenario is more conducive to improving the quality of chest compression (CC).Methods:A total of 160 participants from Wuhan University and senior clinical medicine undergraduates who had not participated in any CPR training before and had no actual CPR experience were recruited.They were randomly divided into the following 4 groups.First,all participants practiced on the Resusci Anne QCPR manikin during CPR training. All participants practiced at least 3 cycles of CC each time (Group C and Group D received the AVF device) until they passed the assessment. Finally, they took part in a 2-minute continuous CC during simulated CPA (Group B and Group D received the AVF device)Results:CC quality was improved with the AVF device during simulated CPA. With the AVF device compared with no AVF device improved depth compliance during simulated CPA by 22.8% (P<0.001) and rate compliance by 11.3% (P=0.003). The use of the AVF device during CPR training resulted in a –2.6% (P =0.61) change in appropriate CC depth compliance compared with no AVF device. At the same time, there was a –1.3% (P = 0.724) change in compliance with rate guidelinesConclusion:Use of a feedback device in simulated cardiopulmonary arrest can improve cardiopulmonary resuscitation better than training.