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Introduction: Failure of airway management remains a significant source of morbidity and mortality. Advanced airway management has been addressed effectively by simulation-based training. However, simulation of difficult airways in manikins is limited by the pre-set conditions provided by the manufacturer. Life-like conditions in the form of the softness of the tissue and true anatomy as seen in cadaver models are needed to create simulated models with a closer resemblance to real patients. The goal of this study was to determine the feasibility of simulating difficult airway from submandibular abscess in cadaver models by surgical modification of the cadaver heads for use in enhanced experiential learning of the management of difficult airways. Methods: The cadaver heads were modified surgically to simulate a submandibular abscess. The models were used in an airway course where participants provided feedback on the realistic nature of the model and its benefits for difficult airway training. The ease of tracheal intubation of the models with the assistance of video laryngoscopy was assessed.Results: The modified cadavers were acceptable in simulating difficult airway as demonstrated by the feedback from the participants. All participants (100% [95% confidence interval = 89.1%-100%]) found the models to be realistic and beneficial for difficult airway training. A good proportion (56.3%) felt that the intubation technique was made easier with the video laryngoscopy. Conclusions: Cadavers can be modified to simulate pathologies associated with difficult airways. These models can be used to enhance experiential learning and the management of difficult airways.

There has been a lot of focus on osteonecrosis of the jaws associated with the usage of bisphosphonates both in dental and medical literature in recent years. However, the exact pathogenesis of bisphosphonate-related osteonecrosis of the jaws remains unclear. Against the background of emerging evidence of an evolving condition, it is not surprising that there is a lack of robust evidence-based recommendations on dental treatment of patients on bisphosphonates. This paper seeks to provide a rational approach to the dental management of patients on bisphosphonates based on current literature.

Purpose Education in airway management is a fundamental component of anesthesiology training programs. There has been a shift towards the use of simulation models of higher fidelity for education in airway management. The goal of this study was to create a novel cadaveric model of a simulated parapharyngeal abscess with features of a difficult airway such as distorted anatomy and narrow airway passages presenting as stridor. The model was further assessed for its suitability for enhanced experiential learning in the management of difficult airways. Methods Cadaver heads were modified surgically to simulate parapharyngeal abscess. Airtight torso of the cadaver was connected to an Oxylog ventilator to simulate respiratory movements-the opening and closing of air channels with breaths in a patient with parapharyngeal abscess. Advanced airway workshop facilitators conducted directed one-to-one learning, and provided feedback to participants. A paper-based feedback was obtained from 72 participants on their confidence level, and the realism, attractiveness, beneficial, and difficulty levels of the simulated cadaveric models. Results The modified cadavers were reliable in simulating difficult airways. The majority of participants (91%) reported an increase in confidence level for management of the difficult airway after the experience with the modified cadavers and found the models realistic (93%), attractive (92%), beneficial (93%), and difficult (85%). Conclusions Surgical modifications of cadavers to simulate difficult airways such as parapharyngeal abscess with edema and stridor can be incorporated into advanced airway management courses to enhance experiential learning in airway management by awake fibreoptic intubation, and promote patient safety.

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