Résumé
Dans les conditions physiologiques, l’endothélium régule le tonus vasomoteur et la pression artérielle, mais également le système de la coagulation, l’agrégation plaquettaire, et enfin la perméabilité vasculaire. Les cellules endothéliales de l’ensemble de l’organisme ont des propriétés communes, mais elles ont également des caractéristiques propres d’un organe à l’autre, définissant l’hétérogénéité endothéliale. La dysfonction endothéliale a été associée à de nombreux processus physiopathologiques, tels que l’inflammation et le stress oxydatif. L’altération de la fonction endothéliale conduit à des modifications phénotypiques et joue un rôle clé dans la physiopathologie des défaillances d’organes au cours des états critiques. Ainsi, la validation de nouveaux outils performants pour la détection précoce de la dysfonction endothéliale pourrait être d’un grand intérêt dans la prise en charge des patients de réanimation.
Abstract
Under physiological conditions, the endothelium regulates vasomotor tone, the coagulation cascade, platelet aggregation, and vascular permeability. Endothelial cells have common properties, but these vascular cells also have organ-related characteristics, defining the endothelial heterogeneity. Endothelial dysfunction has been associated with many pathophysiological processes such as inflammation and oxidative stress. Impaired endothelial function leads to phenotypic changes and is involved in the pathophysiology of organ failure during critical conditions. The development of accurate tools for the early detection of endothelial dysfunction and microcirculatory hypoperfusion could be of great interest in critically ill patients.
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Ait-Oufella, H., Gibot, S., Guillon, A. et al. Endothélium et microcirculation au cours des états critiques. Actes du séminaire de recherche translationnelle de la Société de réanimation de langue française (1er décembre 2015). Réanimation 25, 431–439 (2016). https://doi.org/10.1007/s13546-016-1190-7
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DOI: https://doi.org/10.1007/s13546-016-1190-7