Un modèle pour l'usage de l'hélium en thérapie hyperbare

Frédéric Berthommier (1)

1 GIPSA-PCMD - GIPSA - Perception, Contrôle, Multimodalité et Dynamiques de la parole

A model of the evolution in time of the size of gas bubbles present in the body is established. Variable size bubbles are present in tissues as a consequence of decompression sickness or iatrogenic embolization. This model allows to estimate the disappearance time of bubbles during Hyperbaric Oxygen Therapy, optionaly with nitrogen or helium as inert gas. The phenomenon of isobaric counter diffusion is taken into account to show that the use of helium combined with high pressure at 6ATA is advantageous to accelerate the disappearance of bubbles.

Mots clés: Médecine hyperbare; tables thérapeutiques; héliox; bulles; embolie gazeuse; contre-diffusion; maladie de décompression

Domaines: Médecine humaine et pathologie

Frédéric Berthommier. Un modèle pour l'usage de l'hélium en thérapie hyperbare. 2013. ⟨hal-00925122⟩