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Impact of Intracardiac Neurons on Cardiac Electrophysiology and Arrhythmogenesis in an Ex Vivo Langendorff System
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Neurocardiology.

N D Osteraas1, V H Lee1

  • 1Section of Cerebrovascular Diseases, Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA.

Handbook of Clinical Neurology
|February 12, 2017
PubMed
Summary
This summary is machine-generated.

Neurocardiology explores the brain-heart connection, where acute brain injuries can trigger stress-related cardiomyopathy. Understanding this link is crucial for managing neurological conditions affecting the heart.

Keywords:
arrhythmiaintracerebral hemorrhageischemic strokeneurogenic stunned myocardiumsubarachnoid hemorrhagetako-tsubo cardiomyopathy

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Area of Science:

  • Neurocardiology
  • Neurology
  • Cardiology

Background:

  • The nervous and cardiovascular systems exhibit complex interplay, termed neurocardiology.
  • Acute brain injury can precipitate stress-related cardiomyopathy, characterized by sympathetic overactivation.
  • Conditions like aneurysmal subarachnoid hemorrhage demonstrate the brain's profound impact on cardiac function.

Purpose of the Study:

  • To elucidate the pathophysiology of neurocardiac conditions.
  • To outline appropriate management strategies for neurologists.
  • To enhance understanding of the brain-heart axis in clinical neurology.

Main Methods:

  • Review of existing literature on neurocardiology and brain-heart interactions.
  • Analysis of clinical manifestations of neurogenic cardiac dysfunction.
  • Discussion of pathophysiological mechanisms linking neurological events to cardiac outcomes.

Main Results:

  • Brain injury can lead to cardiac markers elevation, arrhythmias, and myocardial necrosis.
  • Neurogenic stunned myocardium is associated with increased intracranial pressure and catecholamine surges.
  • Autonomic dysfunction is a key feature in these pathological neurocardiac states.

Conclusions:

  • The brain significantly influences cardiac function, particularly after acute brain injury.
  • Neurologists must be aware of and manage cardiac complications arising from neurological conditions.
  • Further research into neurocardiac pathophysiology can improve patient outcomes.