Norwegian Centre for Integrated Care and Telemedicine, University Hospital of North Norway, N-9038 Tromsø, Norway.
J Telemed Telecare. 2011;17(2):88-92. doi: 10.1258/jtt.2010.100605. Epub 2010 Dec 7.
Many mobile phones allow two-way video communication, which permits callers to hear and see each other. If used during medical emergencies, bystanders can receive supervision and guidance from medical staff based on visual information. We investigated whether video calls from mobile phones could improve the confidence of lay rescuers. High school students (n = 180) were randomly assigned in groups of three to communicate via video calls or via ordinary mobile phone calls. They received realtime guidance from experienced nurse dispatchers at an emergency medical dispatch centre during 10-min scenarios of simulated cardiac arrest. Each student answered a questionnaire to assess understanding, confidence and usefulness of the technology. The mean age was 17.3 years in the video group and 17.9 years in the audio group. There were 27% male participants in the video group and 34% male participants in the audio group. Seventy-three percent of the students in the video group and 71% in the audio group reported previous cardiopulmonary resuscitation training. Rescuers who had not used video phones had a greater tendency to comment on immature video call technology, while some who had used video phones complained about poor sound quality during video calls. The majority of rescuers in both groups believed that video calls were superior to audio calls during medical emergencies, and this proportion was significantly higher in the video group (P = 0.0002). We found that visual contact and supervision through video calls improved rescuers' confidence in stressful emergencies.
许多手机都支持双向视频通信，允许呼叫方相互听到和看到对方。如果在医疗紧急情况下使用，旁观者可以根据视觉信息获得医护人员的监督和指导。我们研究了手机视频通话是否可以提高非专业救援人员的信心。我们将 180 名高中生随机分成三人一组，通过视频通话或普通手机通话进行交流。他们在模拟心脏骤停的 10 分钟场景中，从急救医疗调度中心经验丰富的调度员那里获得实时指导。每个学生回答一份问卷，以评估对技术的理解、信心和有用性。视频组学生的平均年龄为 17.3 岁，音频组学生的平均年龄为 17.9 岁。视频组有 27%的男性参与者，音频组有 34%的男性参与者。视频组 73%的学生和音频组 71%的学生报告之前接受过心肺复苏培训。从未使用过视频电话的救援人员更倾向于对不成熟的视频通话技术发表评论，而一些使用过视频电话的救援人员则抱怨视频通话时声音质量差。两组大多数救援人员都认为，在医疗紧急情况下，视频通话优于音频通话，视频组的这一比例明显更高（P=0.0002）。我们发现，通过视频通话进行视觉接触和监督可以提高救援人员在紧急情况下的信心。
