Cardiac manifestations of neurologic disorders

Area of Science:

• Neurology
• Cardiology
• Autonomic Nervous System

Background:

• Cardiac complications are frequently observed in patients with neurologic diseases, particularly cerebrovascular accidents.
• While often benign, these complications can manifest as severe arrhythmias and myocardial infarctions.
• Autonomic dysfunction is a key factor linking neurologic conditions to cardiac derangements.

Purpose of the Study:

• To review the cardiac complications associated with various neurologic diseases.
• To elucidate the role of autonomic dysfunction in these cardiac manifestations.
• To highlight specific cardiac issues seen in cerebrovascular accidents, seizures, synucleinopathies, and neuromuscular disorders.

Main Methods:

• Literature review of established research on neurologic diseases and associated cardiac complications.
• Analysis of the pathophysiological mechanisms linking autonomic dysfunction to cardiac events.
• Categorization of cardiac complications based on specific neurologic disease types.

Main Results:

• Cerebrovascular accidents, including subarachnoid hemorrhage, intracranial bleeds, and ischemic strokes, are linked to myocardial infarcts, left ventricular dysfunction, and arrhythmias.
• Seizures can precipitate cardiac asystole, leading to sudden death.
• Synucleinopathies and neuromuscular disorders (dystrophies, mitochondrial myopathies) are associated with autonomic dysfunction, cardiac conduction defects, and cardiomyopathy.

Conclusions:

• Neurologic diseases significantly impact cardiac function through autonomic pathways.
• Understanding these links is crucial for managing patients with both neurologic and cardiac conditions.
• Further research into the specific mechanisms and tailored treatments is warranted.