International journal of pediatric otorhinolaryngology · 2019
Ovine model as a surgical simulator for pediatric laryngotracheal reconstruction.
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Ranguis S, Ryan P, Cheng A T
Аннотация
OBJECTIVES: There are increasing pressures on the health system and training programs to provide adequate training opportunities for surgical trainees. This is particularly true with respect to complex procedures that are performed less commonly. We sought to develop an ovine model for the simulation of pediatric laryngotracheal reconstruction (LTR) and validate its use for training.
METHODS: Knee-high lamb specimens were sourced from an accredited Australian abattoir that included structures of the neck, cervical spine and subcutaneous tissues from the thyroid cartilage to the carina. Specimens were positioned and draped to simulate surgical exposure. Otorhinolaryngology residents and consultants performed two LTRs on separate specimens that were video recorded for assessment of performance.
RESULTS: Sixteen LTRs were performed by eight participants. Performance of experienced (advanced) participants was significantly better than novice participants (p = 0.001). There was a strong linear association between general surgical competence and procedural performance (r = 0.88). The developed assessment scales demonstrated strong reliability and internal consistency (Cronbach's α = 0.83).
CONCLUSIONS: The complexity of pediatric airway surgery makes simulation an attractive option for developing skills that are transferrable to the operating setting. The ovine model presented here has similarities in size, structure and tissue characteristics to the pediatric airway that make it an ideal model for simulating pediatric LTR. It is a low-cost, readily available option for otorhinolaryngology residents to develop and refine essential skills throughout their training.
METHODS: Knee-high lamb specimens were sourced from an accredited Australian abattoir that included structures of the neck, cervical spine and subcutaneous tissues from the thyroid cartilage to the carina. Specimens were positioned and draped to simulate surgical exposure. Otorhinolaryngology residents and consultants performed two LTRs on separate specimens that were video recorded for assessment of performance.
RESULTS: Sixteen LTRs were performed by eight participants. Performance of experienced (advanced) participants was significantly better than novice participants (p = 0.001). There was a strong linear association between general surgical competence and procedural performance (r = 0.88). The developed assessment scales demonstrated strong reliability and internal consistency (Cronbach's α = 0.83).
CONCLUSIONS: The complexity of pediatric airway surgery makes simulation an attractive option for developing skills that are transferrable to the operating setting. The ovine model presented here has similarities in size, structure and tissue characteristics to the pediatric airway that make it an ideal model for simulating pediatric LTR. It is a low-cost, readily available option for otorhinolaryngology residents to develop and refine essential skills throughout their training.