Article révisé par les pairs
Résumé : Shock is a life-threatening condition marked by inadequate tissue perfusion and organ dysfunction with high morbidity and mortality. Activation of the sympatho-adrenergic system is pivotal in response to all four major categories (i.e., hypovolemic, distributive, cardiogenic, and obstructive). In addition, exogenous vasopressors are often used to maintain organ perfusion pressure and decrease the size of the intravascular compartment. These agents preferentially constrict the arterial system but may lead to microcirculatory failure, especially at higher doses. This review outlines the sympatho-adrenergic system response after shock, discusses various vasopressors currently used as resuscitative agents, and reports the rationale for using a predominant venous vasopressor in shock. We also discuss the preliminary evidence for and ongoing research into a novel venous vasopressor, centhaquine citrate.

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