Gaze Training on Task Performance Regional Anaesthesia

NCT ID: NCT04426227

Last Updated: 2020-06-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE3

Total Enrollment

43 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-08-01

Study Completion Date

2020-12-01

Brief Summary

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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.

Detailed Description

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Conditions

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Anesthesia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Study Groups

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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.

Group Type EXPERIMENTAL

Gaze training

Intervention Type OTHER

A training module in gaze training for peripheral nerve blockade

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.

Group Type ACTIVE_COMPARATOR

Discovery learning

Intervention Type OTHER

A phase of discovery learning guided by novice operators themselves

Interventions

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Gaze training

A training module in gaze training for peripheral nerve blockade

Intervention Type OTHER

Discovery learning

A phase of discovery learning guided by novice operators themselves

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Undergraduate Science, Technology, Engineering or Maths (STEM) students who are capable of giving informed consent

Exclusion Criteria

* Previous experience of gaze training or eye tracking software
* Previous experience of regional anaesthesia needling tasks
Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Nottingham

OTHER

Sponsor Role lead

Responsible Party

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David Hewson

Honorary Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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David W Hewson, MBBS

Role: PRINCIPAL_INVESTIGATOR

University of Nottingham

Central Contacts

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David W Hewson, MBBS

Role: CONTACT

01159249924 ext. 61195

Other Identifiers

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434-1912

Identifier Type: -

Identifier Source: org_study_id

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