Summary
One hundred patients were randomized into control and “treatment” groups, in three separate studies, to determine whether hypoxaemia in the immediate postoperative period could be minimized by manoeuvres applied during anaesthesia—intermittent hyperinflation of the lungs, rehydration and the use of an “artificial nose,” and the addition of nebulized water to the inspired air. None of the methods studied produced any significant reduction in postoperative hypoxaemia.The relationship of postoperative arterial oxygen tension to age, duration of Operation, and arterial carbon dioxide tension was examined statistically.
Résumé
On a fait trois études séparées, dans le but d’évaluer l’efficacité de manœuvres pratiquées durant l’anesthésie pour diminuer l’hypoxémie post-opératoire. L’inflation intermittente des poumons, la correction de l’insuffisance pré-opératoire de liquides et l’usage d’un “nez artificiel” de même que l’humidification des gaz inspirés à l’aide d’eau vaporisée ont tour à tour été évaluées. On a divisé les malades en deux groupes, soit les “traités” et les témoins; on les a numérotés et on a examiné le sang artériel 15 et 60 minutes après l’opération. On a comparé statistiquement les résultats obtenus auprès de chacun des deux groupes, et on n’a observé acune différence importante. Les tensions d’oxygène artériel postopératoire se sont montrées plus faibles chez les malades âgés, sans rapport avec la durée de l’opération, et elles avaient tendance à être plus élevées chez les malades à faible tension de CO2 artériel.
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Fairley, H.B., Kerr, J.H., Laws, A.K. et al. The avoidance of postoperative hypoxaemia: An assessment of three techniques for use during anaesthesia. Can. Anaes. Soc. J. 15, 152–162 (1968). https://doi.org/10.1007/BF03005722
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DOI: https://doi.org/10.1007/BF03005722