The intubating laryngeal mask airway in fresh cadaversvs paralysed anesthetised patients
Open Access
- 1 November 1999
- journal article
- research article
- Published by Springer Nature in Canadian Journal of Anesthesia/Journal canadien d'anesthésie
- Vol. 46 (11) , 1067-1069
- https://doi.org/10.1007/bf03013204
Abstract
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. 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. There were no differences in ease of insertion or ease of fibreoptic-guided intubation, OLP,in-vivo intracuff pressure or anatomic position between groups. 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. Comparer le fonctionnement du masque laryngé d’intubation (MLI) chez des cadavres frais et des patients anesthésiés, en termes de facilité d’insertion, perte de pression oropharyngée (PPO), pression invivo à l’intérieur du ballonnet, position anatomique (évaluée par fibroscopie) et facilité d’intubation fibroscopique. On a étudié 20 patients insensibilisés sous anesthésie et 20 cadavres (6–24h post mortem). Des groupes ont été formés selon la grandeur, le poids et le sexe. La facilité d’insertion et la facilité d’intubation fibroscopique (le nombre d’essais et le temps nécessaire au positionnement réussi) ont été enregistrées. La PPO, la pression intraballonnetin vivo et la position anatomique (jugée par fibroscopie) ont été mesurées au volume zéro, puis après chaque addition de 10 ml, jusqu’à 40 ml. Il n’y a pas eu de différence intergroupe quant à la facilité d’insertion ou d’intubation fibroscopique, de PPO, de pression intraballonnetin vivo ou de position anatomique. Le fonctionnement du MLI est similaire chez des cadavres frais et des patients anesthésiés. Le cadavre frais est donc un modèle fiable à utiliser pour la formation et la recherche.Keywords
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