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  • Title: The intubating laryngeal mask airway in fresh cadavers vs. paralysed anesthetised patients.
    Author: Keller C, Brimacombe J.
    Journal: Can J Anaesth; 1999 Nov; 46(11):1067-9. PubMed ID: 10566929.
    Abstract:
    PURPOSE: To compare the performance of the intubating laryngeal mask airway (ILM) between fresh cadavers and anesthetised patients in terms of ease of insertion, oropharyngeal leak pressure (OLP), in-vivo intracuff pressure, anatomical position (assessed fibreoptically) and ease of fibreoptic-guided intubation. METHODS: Twenty paralysed anesthetised patients and twenty cadavers (6-24 hr post-mortem) were studied. Groups were matched for height, weight and sex. Ease of insertion and ease of fibreoptic-guided intubation (number of insertion attempts and time to successful placement) were recorded. The OLP in-vivo intracuff pressure and anatomical position (judged fibreoptically) were measured at zero volume and after each additional 10 ml up to 40 ml. RESULTS: There were no differences in ease of insertion or ease of fibreoptic-guided intubation, OLP, in-vivo intracuff pressure or anatomic position between groups. CONCLUSIONS: We conclude that the performance of the ILM is similar for fresh cadavers and paralysed anesthetised patients. This suggests that the fresh cadaver is a suitable model for training and research.
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