Clin Exp Otorhinolaryngol.  2020 Feb;13(1):58-63. 10.21053/ceo.2019.00556.

Development and Validation of a Low-Cost and Simple Simulator for Microlaryngeal Surgery

• Yu P
• Luan J
• Cui X
• Li X
• Hu X
• Sun G

• KMID: 2501299
• DOI: http://doi.org/10.21053/ceo.2019.00556

Abstract

Objectives
. The simulation of microlaryngeal skills is rarely seen in surgical training, but it is particularly important in phonomicrosurgery. This study described and validated the laryngeal surgical simulator through surgical training.
Methods
. A simple and low-cost simulator was developed for the fixation of the suspension laryngoscope and porcine larynges. Twenty participants with work skills and experience did preparation before training, and performed suture and carbon dioxide (CO2) laser cordectomy for simulator evaluation. The results were proposed by the aspects of time taken for each procedure, the global rating scale, a procedure-specific assessment, and a post-simulation questionnaire.
Results
. All participants completed the preparation within 9 minutes and reached the conclusion that the microlaryngeal surgical simulator was helpful in improving their surgical skills. The performance of experts was superior to that of novices in both suture and CO2 laser cordectomy.
Conclusion
. This simulator could be easily assembled and was successfully validated by microlaryngeal surgical training both subjectively and objectively. It may be helpful to clinicians in microlaryngeal skills.

Keyword

Larynx; Microsurgery; Simulation Training; Education

Figure

• 

  Fig. 1. (A) The simulator with a suspension laryngoscope and the porcine larynx. (B) The porcine larynx can be inserted into the raised portion (yellow arrow) and held by clips (blue arrow). The side length of one component was shown.

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  Fig. 2. Three different components of the simulator were made according to the specified parameters. (A) A pedestal with four blocks and four nails. (B) The component to let through the suspension laryngoscope. (C) The component to vertically adjust the suspension laryngoscope. D, diameter.

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  Fig. 3. A trainee was performing carbon dioxide (CO2) laser cordectomy on the simulator under microscope.

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  Fig. 4. (A) The specimen image of suture on the left vocal fold. (B) The specimen image of carbon dioxide (CO2) laser cordectomy of the left vocal fold.

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  Fig. 5. Direct correlation between the global rating score and the procedure-specific rating score for suture (A) and carbon dioxide (CO2) laser cordectomy (B). Pearson correlation coefficients are shown for each procedure.

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