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Pathologie vasculaire du tube digestif pp 29–33Cite as

Physiologie de la vascularisation intestinale

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Résumé

Le système vasculaire intestinal est l’un des plus adaptatifs du corps humain. Dix à 20 % du débit cardiaque global suffsent à vasculariser l’intestin à jeûn. En période post-prandiale, la part destinée à la vascularisation digestive peut représenter jusqu’à 35 % du débit cardiaque total, variant en fonction de la quantité, de l’heure et de la composition du bol alimentaire. En période de jeune, 30 % de la totalité du sang circulant sont localisés dans le système splanchnique. En situation d’hypovolémie, d’hémorragie, d’hémodialyse, ou d’insuffsance cardiaque, on observe une diminution du débit et de la quantité de ces réserves vasculaires splanchniques par mobilisation et redistribution vers les territoires cardiaques et cérébraux [1–4]. Cette remarquable adaptation du lit vasculaire intestinal aux nécessités de la digestion ou du maintien d’une stabilité hémodynamique est le résultat d’une étroite coopération entre les résistances de systèmes pré- et postcapillaires

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Authors and Affiliations

  1. CHRU de Lille, France

    Philippe Zerbib (Professeur des universités, chirurgien général)

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  1. Philippe Zerbib
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Zerbib, P. (2012). Physiologie de la vascularisation intestinale. In: Pathologie vasculaire du tube digestif. Springer, Paris. https://doi.org/10.1007/978-2-8178-0276-3_2

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  • DOI: https://doi.org/10.1007/978-2-8178-0276-3_2

  • Publisher Name: Springer, Paris

  • Print ISBN: 978-2-8178-0275-6

  • Online ISBN: 978-2-8178-0276-3

  • eBook Packages: MedicineMedicine (R0)

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