新的调度员辅助心肺复苏协议的功效，具有音频呼叫到视频呼叫的转换。

Efficacy of a new dispatcher-assisted cardiopulmonary resuscitation protocol with audio call-to-video call transition.

机构信息

Department of Emergency Medicine, Seoul National University Hospital, Seoul, Korea; Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute.

Department of Emergency Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Republic of Korea; Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute.

出版信息

Am J Emerg Med. 2021 Jun;44:26-32. doi: 10.1016/j.ajem.2021.01.049. Epub 2021 Jan 24.

DOI:10.1016/j.ajem.2021.01.049

PMID:33578328

Abstract

BACKGROUND

Video call based dispatcher-assisted cardiopulmonary resuscitation (V-DACPR) has been suggested to improve the quality of bystander cardiopulmonary resuscitation. In the current system, dispatchers must convert the audio calls to video calls to provide V-DACPR. We aimed to develop new audio call-to-video call transition protocols and test its efficacy and safety compared to conventional DACPR(C-DACPR).

METHODS

This was a randomized controlled simulation trial that compared the quality of bystander chest compression that was performed under three different DACPR protocols: C-DACPR, V-DACPR with rapid transition, and V-DACPR with delayed transition. Adult volunteers excluding healthcare providers were recruited for the trial. The primary outcome of the study was the mean proportion of adequate hand positioning during chest compression.

RESULTS

Simulation results of 131 volunteers were analyzed. The mean proportion of adequate hand positioning was highest in V-DACPR with rapid transition (V-DACPR with rapid transition vs. C-DACPR: 92.7% vs. 82.4%, p = 0.03). The mean chest compression depth was deeper in both V-DACPR groups than in the C-DACPR group (V-DACPR with rapid transition vs. C-DACPR: 40.7 mm vs. 35.9 mm, p = 0.01, V-DACPR with delayed transition vs. C- DACPR: 40.9 mm vs. 35.9 mm, p = 0.01). Improvement in the proportion of adequate hand positioning was observed in the V-DACPR groups (r = 0.25, p < 0.01 for rapid transition and r = 0.19, p < 0.01 for delayed transition).

CONCLUSION

Participants in the V-DACPR groups performed higher quality chest compression with higher appropriate hand positioning and deeper compression depth compared to the C-DACPR group.

摘要

背景

视频通话辅助心肺复苏（V-DACPR）已被提出，以提高旁观者心肺复苏的质量。在当前系统中，调度员必须将音频呼叫转换为视频呼叫，以提供 V-DACPR。我们旨在开发新的音频呼叫到视频呼叫转换协议，并测试其与传统 DACPR（C-DACPR）相比的功效和安全性。

方法

这是一项随机对照模拟试验，比较了在三种不同 DACPR 协议下进行的旁观者胸外按压质量：C-DACPR、快速转换的 V-DACPR 和延迟转换的 V-DACPR。试验招募了非医疗保健提供者的成年志愿者。该研究的主要结局是胸外按压时手放置位置适当的平均比例。

结果

对 131 名志愿者的模拟结果进行了分析。快速转换的 V-DACPR 中手放置位置适当的比例最高（V-DACPR 快速转换与 C-DACPR 相比：92.7% vs. 82.4%，p=0.03）。在 V-DACPR 两组中，胸外按压深度均比 C-DACPR 组更深（V-DACPR 快速转换与 C-DACPR 相比：40.7mm vs. 35.9mm，p=0.01，V-DACPR 延迟转换与 C-DACPR 相比：40.9mm vs. 35.9mm，p=0.01）。V-DACPR 组中手放置位置适当的比例有所提高（快速转换组 r=0.25，p<0.01，延迟转换组 r=0.19，p<0.01）。