Abstract
Circulatory failure recognition and treatment represents an important issue in critically ill infants and children.Improvement of cardiocirculatory disability and stabilization of hemodynamic is the key step.Hemodynamic variations among different types of shocks, such as hypovolemic, cardiogenic, distributive and obstructive shock, are different.When fluid administration fails to restore adequate arterial pressure and organ perfusion, vasoactive agents should be considered.The key to selecting among vasoactive agents is to consistent with the context of the goals of therapy.Despite the complex pathophysiology of shock, choose of right vasoactive agents for hemodynamic support of patients with shock can be guided by acknowledged pathological changes, mechanisms of vasoactive agents and current studies. Key words: Shock; Children; Vasoactive agents; Catecholamine drugs,
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