The Effect of Gaze Training on Task Performance and Skill Acquisition in Ultrasound-guided Regional Anaesthesia: a Partially Blinded Randomised Controlled Trial.
试验速览
- 阶段
- 3 期
- 入组人数
- 43
- 主要终点
- Change in Composite Error Score
研究概览
简要总结
Regional anaesthesia is the performance of spinal, epidural or peripheral nerve blocks to allow patients to undergo surgery awake and to provide post-operative pain relief. Anaesthetists inject local anaesthetic using specialist needles close to nerves to prevent transmission of pain. Hand-held ultrasound is often used by anaesthetists to direct these needles to the correct position i.e. close to, but not in the nerve itself. If the needle is not adequately seen using the hand-held ultrasound it may pierce the nerve causing permanent nerve damage and significant patient harm.
Within the time and resource constraints of postgraduate medical training, it would be advantageous to optimise expertise acquisition of practical skills with a cheap, self-directed educational intervention. Therefore, the aim of this study is to determine whether gaze training is associated with improved performance of an ultrasound-guided needle task. The investigators hypothesise that improved gaze control will translate to better technical performance of an ultrasound-guided regional anaesthesia task.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Double (Investigator, Outcomes Assessor)
入排标准
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Undergraduate Science, Technology, Engineering or Maths (STEM) students who are capable of giving informed consent
排除标准
- •Previous experience of gaze training or eye tracking software
- •Previous experience of regional anaesthesia needling tasks
研究组 & 干预措施
Group Gaze
The gaze-trained group will be shown a video, derived from the eye tracker, of an expert's visual control whilst performing the ultrasound task. Participants will be made aware of the target-focused gaze strategy (lengthy and stable fixations on the needling target), and the manner in which the gaze shifted from target to tools (hands, needle and transducer) in a fast, smooth fashion. They will then be advised to try to mimic the gaze strategy of the expert while undertaking the needling task as their first training task. After completion of this training task, participants will be shown their own video data, as captured by the eye tracker. Participants will be asked to comment on differences between their own video and the expert video they had previously seen. This feedback process will be replicated a further four training task attempts. Participants in this group will therefore undergo a total of five training attempts of the needling task.
干预措施: Gaze training (Other)
Group Discovery
The discovery learning group will be given no video feedback and will be instructed to perform five training attempts at the needling task without further training or feedback.
干预措施: Discovery learning (Other)
结局指标
主要结局
Change in Composite Error Score
时间窗: Undertaken during ultrasound assessment 1 (before training intervention) and during ultrasound assessment 2 (which will occur 10 minutes after the training intervention was undertaken). Each assessment will be 15 minutes in duration.
Objective error scoring of performance at needling task
次要结局
- Change in Global Rating Scale(Undertaken during ultrasound assessment 1 (before training intervention) and during ultrasound assessment 2 (which will occur 10 minutes after the training intervention). Each assessment will be 15 minutes in duration.)
研究者
David Hewson
Honorary Assistant Professor
University of Nottingham