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Canadian Journal of Anesthesia

, Volume 46, Issue 11, pp 1067–1069 | Cite as

The intubating laryngeal mask airway in fresh cadaversvs paralysed anesthetised patients

Brief Reports
Accepted:

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.

Keywords

Laryngeal Mask Airway Anesthetised Patient Frais Fresh Cadaver Intracuff Pressure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

Objectif

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.

Méthode

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.

Résultats

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.

Conclusion

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.

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References

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Copyright information

© Canadian Anesthesiologists 1999

Authors and Affiliations

  1. 1.Department of Anaesthesia and Intensive Care MedicineLeopold-Franzens UniversityInnsbruckAustria
  2. 2.Department of Anaesthesia and Intensive CareCairns Base HospitalThe EsplanadeAustralia

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