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Erschienen in: European Archives of Oto-Rhino-Laryngology 4/2020

01.04.2020 | Head and Neck

Feasibility of ovine and porcine models for simulation training in parotid surgery and facial nerve dissection

verfasst von: Thomas D. Milner, Saleh Okhovat, Mark McGuigan, William A. Clement, Thushitha Kunanandam

Erschienen in: European Archives of Oto-Rhino-Laryngology | Ausgabe 4/2020

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Abstract

Purpose

To assess and compare the feasibility of using ovine and porcine models as surgical simulation training tools for otolaryngology trainees performing parotid surgery and facial nerve dissection.

Methods

Trainees performed parotid surgery (total parotidectomy, retrograde facial nerve dissection and facial nerve grafting) on an ovine and porcine model. Participants completed a 22-item, five-point Likert scale questionnaire on each model, assessing three validation domains; face validity (FV), global content validity (GCV) and task-specific content validity (TSCV). Data were prospectively collected and analysed using descriptive and non-parametric statistics.

Results

Twelve trainees completed two consecutive parotidectomies and facial nerve dissections on an ovine and porcine model. Twenty-four dissections were completed. Validation questionnaires were completed for each model by all trainees. The ovine model achieved median validation threshold scores (≥ 4/5) for all aspects of FV, GCV and TSCV. The porcine model did not achieve validation threshold scores for any aspect of the validation questionnaire. Comparison of the ovine and porcine model demonstrated that the ovine model was statistically superior to the porcine model across most validation criteria excluding realistic appearance of skin, identification and ligation of the trans-oral parotid duct and facial nerve grafting.

Conclusion

Adequate experience with facial nerve dissection during parotid surgery is vital to ensuring good outcomes and avoiding complications. This study is the first to compare validity of two animal models for simulation training in parotid surgery and facial nerve dissection. We have validated the ovine model as a useful tool for simulation training and advocate its incorporation into otolaryngology training programmes.
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Metadaten
Titel
Feasibility of ovine and porcine models for simulation training in parotid surgery and facial nerve dissection
verfasst von
Thomas D. Milner
Saleh Okhovat
Mark McGuigan
William A. Clement
Thushitha Kunanandam
Publikationsdatum
01.04.2020
Verlag
Springer Berlin Heidelberg
Erschienen in
European Archives of Oto-Rhino-Laryngology / Ausgabe 4/2020
Print ISSN: 0937-4477
Elektronische ISSN: 1434-4726
DOI
https://doi.org/10.1007/s00405-020-05782-6

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