Abstract
Multiple organ dysfunction syndrome is the leading cause of mortality in intensive care units and is precipitated by tissue hypoperfusion. The optimization of oxygen delivery to supranormal levels by infusion of fluids, red blood cells and vasoactive drugs as needed has been adopted in an effort to avoid and reverse this tissue hypoxia and resultant organ damage. Both hemodynamic (cardiac index ≥ 4.5 L/min/m2) and oxygen transport (oxygen delivery ≥ 600mls/min/m2, oxygen consumption ≥ 170mls/min/m2) targets have been extensively investigated, however supranormal elevation of oxygen delivery does not improve overall outcome in critically ill patients. Furthermore, it is often difficult to achieve targets of increased oxygen consumption, with attempts to do this proving detrimental, as demonstrated in Hayes’ work. Early resuscitation, however, appears to be beneficial and a favorable response to hemodynamic optimization may predict survival.
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Tatham, K.C., Cattlin, C.S., Hayes, M.A. (2015). Supranormal Elevation of Systemic Oxygen Delivery in Critically Ill Patients. In: Landoni, G., Mucchetti, M., Zangrillo, A., Bellomo, R. (eds) Reducing Mortality in Critically Ill Patients. Springer, Cham. https://doi.org/10.1007/978-3-319-17515-7_12
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DOI: https://doi.org/10.1007/978-3-319-17515-7_12
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