Bellazzini Marc A, Repplinger Michael D, Gangnon Ronald E
University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA.
Air Med J. 2011 Mar-Apr;30(2):93-6. doi: 10.1016/j.amj.2010.10.010.
Crew safety is paramount to successful helicopter emergency medical service transport. This study assesses using an online video to teach landing zone safety.
This is a randomized, prospective study using a 5-minute video to teach landing zone safety. A pre- and post-test were used to assess efficacy of the initial instruction and subsequent knowledge decay. Block randomization by EMS agency or fire department assigned participants to 0, 2, 4, or 6-month post-video testing.
257 participants, including 62 EMTs, 114 firefighters, and 80 EMT/firefighters, were enrolled and randomized to immediate (A), 2-month (B), 4-month (C), and 6-month (D) post-video testing. 184 (71.6%) completed the study: A – 72 (93.5%), B – 27 (55.1%), C – 32 (64.0%), and D – 53 (65.4%). Mean scores (pre-test, post-test) were: A – (82.7%, 94.9%), B – (81.9%, 91.2%), C – (86.3%, 88%), and D – (82.6%, 92.2%). Statistically significant score increases were seen in groups A (11.1%, 95% CI 6.0%, 16.1%), B (9.0%, 95% CI 3.1%, 14.9%), and D (9.9%, 95% CI 5.3%, 14.5%). Group C had a mean increase of 2.3%, but this was not statistically significant (p = 0.41).
Web-based media is an effective means of teaching landing zone safety to first responders with minimal knowledge decay.
机组人员安全对于直升机紧急医疗服务运输的成功至关重要。本研究评估使用在线视频教授着陆区安全的效果。
这是一项随机、前瞻性研究，使用一个5分钟的视频教授着陆区安全。通过前后测试来评估初始指导的效果以及后续的知识衰减情况。按紧急医疗服务机构或消防部门进行区组随机化，将参与者分配到视频播放后0、2、4或6个月进行测试。
共招募了257名参与者，包括62名急救医疗技术员、114名消防员和80名急救医疗技术员/消防员，并将他们随机分为视频播放后立即测试组（A组）、2个月后测试组（B组）、4个月后测试组（C组）和6个月后测试组（D组）。184名（71.6%）完成了研究：A组72名（93.5%），B组27名（55.1%），C组32名（64.0%），D组53名（65.4%）。平均得分（前测、后测）分别为：A组（82.7%，94.9%），B组（81.9%，91.2%），C组（86.3%，88%），D组（82.6%，92.2%）。A组（11.1%，95%置信区间6.0%，16.1%）、B组（9.0%，95%置信区间3.1%，14.9%）和D组（9.9%，95%置信区间5.3%，14.5%）的得分有统计学意义的提高。C组平均提高了2.3%，但无统计学意义（p = 0.41）。
基于网络的媒体是向急救人员教授着陆区安全的有效手段，且知识衰减最小。
