Ross Linda, Williams Brett, Boyle Malcolm
Department of Community Emergency Health & Paramedic Practice, Monash University, Frankston, Victoria, Australia.
BMJ Simul Technol Enhanc Learn. 2015 Sep 3;1(2):62-66. doi: 10.1136/bmjstel-2015-000033. eCollection 2015.
The importance of access to early defibrillation for patients in cardiac arrest has been emphasised as a critical part of the chain of survival by resuscitation bodies internationally; as such defibrillation has become a key procedure for many out-of-hospital emergency healthcare providers. However, little research has been undertaken specifically addressing students' safety during defibrillation procedures. The objective of this study was to examine visual and verbal safety checks prior to defibrillation utilising eye-tracking technology.
This was an observational study of student safety during cardiac rhythm analysis, defibrillator charging and immediately prior to defibrillation during a resuscitation attempt using a medium fidelity mannequin. The participants completed two 10 min simulations each requiring three defibrillation attempts. The κ statistic was used to determine the agreement by the student of their perceived safety performance and that viewed in the video.
In both scenarios the student's level of agreement for their perceived defibrillation safety performance and what was observed in the video decreased from defibrillation one to three in both scenarios. However, there was agreement in their overall defibrillation safety performance for both scenarios.
Student perceptions of their actions during defibrillation are not always an accurate representation of their actual actions.
国际复苏机构强调，对心脏骤停患者进行早期除颤是生存链的关键部分；因此，除颤已成为许多院外急救医疗服务提供者的关键操作。然而，专门针对除颤过程中学生安全的研究很少。本研究的目的是利用眼动追踪技术检查除颤前的视觉和言语安全检查。
这是一项观察性研究，观察学生在使用中等逼真度人体模型进行复苏尝试期间，在心律分析、除颤器充电以及除颤前即刻的安全情况。参与者完成了两次10分钟的模拟，每次模拟需要进行三次除颤尝试。κ统计量用于确定学生对其感知到的安全表现与视频中观察到的安全表现的一致性。
在两种场景中，学生对其感知到的除颤安全表现与视频中观察到的情况的一致程度，从第一次除颤到第三次除颤均有所下降。然而，两种场景下学生的总体除颤安全表现是一致的。
学生对自己在除颤过程中的行为的认知并不总是其实际行为的准确反映。
