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Development and validation of a low-cost microsurgery Ear Trainer for low-resource settings

  • M P A Clark (a1), B D Westerberg (a2) (a3) and J E Mitchell (a4)

Abstract

Objective:

Chronic suppurative otitis media is a neglected condition affecting up to 330 million people worldwide, with the burden of the disease in impoverished countries. The need for non-governmental organisations to hardwire training into their programmes has been highlighted. An ear surgery simulator appropriate for training in resource-poor settings was developed, and its effectiveness in facilitating the acquisition of headlight and microsurgical skills necessary to safely perform procedures via the ear canal was investigated.

Methods:

Face validity was assessed via questionnaires. Six tasks were developed: a headlight foreign body removal task, and microscope tasks of foreign body removal, ventilation tube insertion, tympanomeatal flap raising, myringoplasty and middle-ear manipulation. Participants with varying ENT experience were video-recorded performing each task and scored by a blinded expert observer to assess construct validity.

Results:

Face validity results confirmed that our Ear Trainer was a realistic representation of the ear. Construct validity results showed a statistically significant trend, with experts performing the best and those with limited experience performing better than novices.

Conclusion:

This study validates our Ear Trainer as a useful training tool for assessing headlight and microsurgical skills required to perform otological procedures.

Copyright

Corresponding author

Address for correspondence: Mr M P A Clark, ENT Department, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK Fax: 0300 422 6432 E-mail: Matthew.Clark@glos.nhs.uk

References

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Keywords

Development and validation of a low-cost microsurgery Ear Trainer for low-resource settings

  • M P A Clark (a1), B D Westerberg (a2) (a3) and J E Mitchell (a4)

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