Abstract
Purpose: We describe pharyngeal oximetry with the laryngeal mask airway in two patients with low perfusion states where finger oximetry failed.
Clinical Features: One patient was a 47-yr-old man with septic shock and the other a 64-yr-old man with multiorgan failure. In both patients, a # 4 laryngeal mask airway with a pediatric pulse oximeter probe was inserted behind the tracheal tube. A good waveform was obtained and oxygen saturation was 0–2% lower than arterial samples.
Conclusion: Pharyngeal oximetry with the laryngeal mask airway is feasible in low perfusion states when finger oximetry fails.
Résumé
Objectif: Décrire l’oxymétrie pharyngienne utilisant le masque laryngé pour deux patients qui présentaient un lent débit circulatoire et chez qui l’oxymétrie digitale avait échoué.
Éléments cliniques: Le premier patient avait 47 ans et souffrait de choc septique; le second, âgé de 64 ans, présentait une défaillance multiorganique. Dans les deux cas, on a inséré un masque laryngé no 4 et une sonde pédiatrique d’oxymétrie pulsée derrière le tube trachéal. Une onde bien formée a été obtenue et la saturation en oxygène était de 0–2 % plus basse que celle des échantillons artériels.
Conclusion: L’oxymétrie pharyngienne réalisée avec le masque laryngée est faisable dans des cas de faible débit sanguin, lorsque l’oxymétrie digitale est impossible.
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Brimacombe, J., Keller, C. Successful pharyngeal pulse oximetry in low perfusion states. Can J Anaesth 47, 907–909 (2000). https://doi.org/10.1007/BF03019674
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DOI: https://doi.org/10.1007/BF03019674
Keywords
- Pulse Oximeter
- Tracheal Tube
- Laryngeal Mask Airway
- Pulse Oxime
- Pharyngeal Perfusion