Design and Validation of a Practical Simulator for the Development of Basic Nasal Endoscopy Skills in Otolaryngology – Head and Neck Surgery

  • Author / Creator
    Steen, Laila H
  • Diagnostic nasal endoscopy is the standard procedure used by Otolaryngology – Head and Neck (OHNS) surgeons in detecting and treating conditions of the nose and sinuses. Due to a reduction in time resources towards surgical residency programs, OHNS residents have less access to hands-on patient based training in the clinic and operating room (OR) to develop the basic skills required to perform this procedure. Simulation training has been established as an accessible, safe and more ethical alternative to practicing on patients. There are currently no available simulators for practicing basic diagnostic nasal endoscopy skills. The goal of the present research project was to develop a practical simulator for training basic nasal endoscopy skills in OHNS residency programs. A needs analysis was conducted by interviewing experts in OHNS to help inform the design of the simulator and detect potential barriers to adoption. The simulator was developed using additive manufacturing (AM) technology at the Institute for Reconstructive Sciences in Medicine (iRSM), Edmonton, Alberta. The simulator model was made based on computerized tomography (CT) data to closely resemble human anatomy and incorporated force sensors to function as an objective measure of performance. The model was validated through an experimental study involving novice medical students, residents, and staff from the Department of Otolaryngology – Head and Neck Surgery at the University of Alberta, Edmonton, Alberta. The model showed good face validity by the participants rating its overall utility and effectiveness as high. The model showed good construct validity with a strong correlation between the participants’ performance rated on the Objective Structured Assessment of Technical Skills (OSATS) rating scale and surgical experience when performing a set of basic nasal endoscopic tasks on the model. The model failed to show construct validity as an objective measure of performance with no correlation between force measured by the force sensors in the ii model and surgical experience. The simulator model developed is a practical and readily available alternative for OHNS residents to practice their diagnostic nasal endoscopy skills before they go on to practice on patients. The simulator model can help accelerate learning and improve patient safety and the overall quality of patient care.

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  • Type of Item
  • Degree
    Master of Science
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    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.