Cardiac dysfunction after neurologic injury: What do we know and where are we going?

Recent literature has implicated severe neurologic injuries, such as aneurysmal subarachnoid hemorrhage (SAH), as a cause of cardiac dysfunction, impaired hemodynamic function, and poor outcomes. Mechanistic links between the brain and the heart have been explored in detail over the last several decades, and catecholamine excess, neuroendocrine dysfunction, and unchecked inflammation all likely contribute to the pathophysiologic process. While cardiac dysfunction has also been described in other disease paradigms, including septic shock and thermal injury, there is likely a common underlying pathophysiology. In this review, we will examine the pathophysiology of cardiac dysfunction after neurologic injury, discuss the evidence surrounding cardiac dysfunction after different neurologic injuries , and suggest future research goals to gain knowledge and improve outcomes in this patient population.

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