Mods of tracheal gas insufflation : comparison of continuous and phase-specific gas injection in normal dogs.
Tracheal gas insufflation (TGI) improves the efficiency of CO2 elimination accomplished by conventional mechanical ventilation, primarily by reducing the anatomic (series) dead space volume.
Dead space proximal to the catheter tip can be reduced by two methods.
Fresh gas introduced at the carinal level during inspiration may effectively « bypass » the upper airway.
Alternatively, proximal dead space can be « washed out » with fresh gas during expiration to reduce CO2 rebreathing.
We examined these two modes of TGI-aided dead space reduction in nine paralyzed normal dogs receiving conventional mechanical ventilation and compared these results to those obtained with a catheter that delivered fresh gas continuously at the same flow rate, thereby accomplishing both bypass and washout.
Mots-clés Pascal : Appareil respiratoire pathologie, Réanimation, Technique, Animal, Etude comparative, Fonction respiratoire, Chien, Fissipedia, Carnivora, Mammalia, Vertebrata, Ventilation artificielle
Mots-clés Pascal anglais : Respiratory disease, Resuscitation, Technique, Animal, Comparative study, Lung function, Dog, Fissipedia, Carnivora, Mammalia, Vertebrata, Artificial ventilation
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Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 93-0679969
Code Inist : 002B27B02. Création : 199406.