Construct validity of the ovine model in endoscopic sinus surgery training

Awad, Zaid; Taghi, Ali; Sethukumar, Priya; Tolley, Neil

doi:10.1002/lary.24927

Cited by 29 publications

(35 citation statements)

References 25 publications

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“…However, validation of the lamb’s head for surgical training is recent, and was established in a study by measuring the performance of different groups (medical students, residents with varying levels of expertise, and experienced surgeons) in a single dissection [12]. These findings validated the model for training purposes by proving that more experienced professionals performed better than beginners and students.…”

Section: Discussionmentioning

confidence: 99%

“…In their validation of this model, Awad et al did not measure individual learning because their sample was composed of distinct groups with very different levels of knowledge, and participants practiced only once on the model [12]. …”

Section: Discussionmentioning

confidence: 99%

“…To avoid selection bias, we evaluated a sample composed exclusively of second-year residents, in contrast to other studies that evaluated resident physicians of different academic levels, senior otolaryngologists, fellows, and even undergraduate students [12–17]. For this reason, it took us 4 years to obtain a satisfactory sample size.…”

Section: Discussionmentioning

confidence: 99%

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A feasible, low-cost, reproducible lamb’s head model for endoscopic sinus surgery training

et al. 2017

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ObjectiveTo describe and standardize a reproducible, viable, low-cost lamb’s head model for endoscopic sinus surgery training.MethodsOtorhinolaryngology residents performed the following three endoscopic sinus surgeries using the lamb’s head model: inferior turbinectomy, bullectomy, and maxillary antrostomy. Each student dissected 10 specimens before training these procedures on human patients, and the benefit of the animal model training was evaluated.ResultsNineteen resident physicians of comparable academic level participated in training. All participants agreed that the lamb’s head model dissections improved their skills in using surgical and videoendoscopic instruments, 90% agreed that the dissections improved their confidence with respect to training in human patients, and all stated they would recommend the same training to future residents.DiscussionLamb’s heads have been used for training in endoscopic sinus surgery. However, no standardization of this training had been performed to ensure that it is a valuable tool for learning and skill-building. The standardized method described in this study increased resident physicians’ skills and confidence before beginning their training on human patients. Moreover, our results demonstrate the feasibility of the model, considering its low cost and reproducibility.ConclusionFuture studies with this model should be conducted to assess whether the resulting increase in skills prevents and reduces medical errors, increases patient safety, reduces surgical costs, and improves the quality of otorhinolaryngological care.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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A feasible, low-cost, reproducible lamb’s head model for endoscopic sinus surgery training

et al. 2017

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“…A variety of different simulation techniques has been adopted, including the use of cadaveric dissection, high‐fidelity animal models, virtual‐reality simulators, and synthetic models, with all simulation methods demonstrating significant improvement in the surgical learning curve . The use of animal models in ear, nose, and throat simulation is widely established in rhinology, facial plastics, and laryngology, due to their low cost and high fidelity, as demonstrated in face and content validity studies . These techniques adopted in other subspecialties could be applied to advanced airway surgery to generate a suitable model for LTR.…”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7][8] The use of animal models in ear, nose, and throat simulation is widely established in rhinology, facial plastics, and laryngology, due to their low cost and high fidelity, as demonstrated in face and content validity studies. [9][10][11][12][13][14][15][16] These techniques adopted in other subspecialties could be applied to advanced airway surgery to generate a suitable model for LTR. Therefore, the aim of this study was to perform a systematic review of the literature to identify the suitability of different commercially available animal models used to simulate laryngotracheal reconstruction.…”

Section: Introductionmentioning

confidence: 99%

A systematic review of simulated laryngotracheal reconstruction animal models

et al. 2018

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Objectives Review of the literature to identify practical, high‐fidelity, commercially available animal models for simulation training and surgical skills maintenance in laryngotracheal reconstruction (LTR). Methods A systematic review of PubMed and Embase databases was conducted independently by two authors, according to Preferred Reporting Items for Systematic Reviews and Meta‐Analyses guidelines. Search terms included “laryngotracheal reconstruction,” “laryngotracheoplasty,” “pig and larynx,” “sheep and larynx,” and “rabbit and larynx.” Articles were then assessed, identifying model cost and availability, model validation, feasibility as a training tool, and verisimilitude to pediatric LTR. Results In total, 79 articles were considered suitable for inclusion in the study, incorporating both in vitro and in vivo models. Models utilized included rabbit (n = 69), pig (n = 7), sheep (n = 1), and goat (n = 2). The rabbit model was similar in size to the neonate, but differences in laryngeal anatomy and cartilage texture made graft insertion difficult. The anatomy of the pig, sheep, and goat larynges more closely resembled the pediatric patient, allowing improved grafting, but corresponded more in size to that of an older child. Commercial availability of the pig and sheep was considered greatest, and was reflected in cost. None of the animal models identified in the literature have been validated as a simulation tool. Conclusions The rabbit, sheep and pig models seemed to demonstrate the greatest potential for use as advanced pediatric airway surgery simulation models, with the rabbit model being most utilized in the literature. However, as yet there have been no models formally validated as a simulation training tool. Laryngoscope, 129:235–243, 2019

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Construct validity of a low‐cost medium‐fidelity endoscopic sinus surgery simulation model

et al. 2018

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Objective: Assess construct validity of a low-cost medium-fidelity silicone injection molded model task trainer for endoscopic sinus surgery (ESS) training.Methods: Fellowship-trained rhinologists, otolaryngology attendings, and otolaryngology residents at various levels of training performed sinus endoscopy and seven procedures on the model. Construct validity was evaluated by comparing novice to various levels of experienced performance using a validated checklist.Results: Thirty-two subjects participated in this study. Otolaryngology attendings and postgraduate year (PGY) 3 to 5 otolaryngology residents significantly outperformed PGY 1 to 2 otolaryngology residents on most tasks in the task-specific checklist.Conclusions: This study demonstrated the construct validity of the low-cost medium-fidelity ESS model.

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Construct validity of the ovine model in endoscopic sinus surgery training

Abstract: This study describes an alternative model for ESS training and assessment. It is also the first to demonstrate construct validity of the sheep-head model for ESS training.

Cited by 29 publications

References 25 publications

A feasible, low-cost, reproducible lamb’s head model for endoscopic sinus surgery training

A feasible, low-cost, reproducible lamb’s head model for endoscopic sinus surgery training

A systematic review of simulated laryngotracheal reconstruction animal models

Construct validity of a low‐cost medium‐fidelity endoscopic sinus surgery simulation model

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