Comparison of Audio-Based and Video-Based Cardiac Resuscitation Training by the Emergency Operator on Resuscitation Quality in First-Aid Trainees: A Randomized Simulated Trial

Introduction: With the advancement of technology, using of video communications in emergency triage has become available. Although studies have compared audio and video instructions in cardiac resuscitation, the results are inconsistent regarding the definitive superiority of each method and its impact on precise indicators of resuscitation quality (depth and rate of compressions). Therefore, a systematic comparison of these two training methods seems necessary to determine the most effective way to guide lay rescuers. This study aimed to compare the effect of cardiopulmonary resuscitation training by emergency operators using audio and visual methods on the quality of resuscitation in first aid volunteers. Methods: This simulated randomized trial with two groups was conducted among 83 volunteers. Of these, 47 people were placed in the voice call group and 36 in the video group. Sampling was initially done through convenience sampling and then through random assignment to two groups. The study was carried out at the Mashhad First-Aid Training Center between 2023 and 2024. Data collection tools included a demographic questionnaire, a CPR assessment checklist (evaluating hand placement, compression depth, compression rate, and chest recoil), and a Laerdal Resusci Anne manikin. Data were analyzed using Mann-Whitney U test for comparing scores of resuscitation quality through SPSS software (version 19) . Results: The mean chest compression depth, placement of hands, compression rate, and overall CPR quality score were all significantly higher in the video group, compared to the audio group (P < 0.05). Conclusion: Based on the results of this study, establishing a video link can significantly enhance both the emergency dispatcher's ability to assess the situation and the rescuer's performance in such a way that Visual instruction increasing survival rates in cardiac arrest.