Published in:
01-10-2016 | Editorial
Beta-blockers in septic shock to optimize hemodynamics? Yes
Authors:
Daniel A. Reuter, James A. Russell, Armand Mekontso Dessap
Published in:
Intensive Care Medicine
|
Issue 10/2016
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Excerpt
Septic shock represents one of the maximum physical stresses to the organism. The physiological response to stress includes increased release of catecholamines, leading to a stimulation of cardiac β1-adrenergic receptors thereby increasing heart rate and ventricular contractility in order to increase global and microvascular blood flow and oxygen delivery to vital organs. Yet there are adverse effects of adrenergic stimulation including tachyarrhythmias, increased cardiac oxygen consumption with risk of cardiac ischemia, and immune dysregulation. So while it sounds at first contradictory to stabilize the cardiovascular function by giving β-blocking agents to “brake” the system, there could be benefits. However, is beta-blockade in these clinical circumstances really a brake? …