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Sudden cardiac death.

Alejandro A Rabinstein1

  • 1Department of Neurology, Mayo Clinic, Rochester, MN, USA.

Handbook of Clinical Neurology
|December 25, 2013
PubMed
Summary
This summary is machine-generated.

Excessive adrenergic stimulation from extreme stress or neurologic conditions can cause sudden cardiac death. This neurocardiogenic injury leads to heart failure and arrhythmias, including stress cardiomyopathy.

Keywords:
SUDEPSudden deathapical ballooning syndromeneurocardiogenic injurystress cardiomyopathytakotsubo

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Area of Science:

  • Cardiology
  • Neurology
  • Pathophysiology

Background:

  • Sudden cardiac death (SCD) is a critical concern, often linked to extreme stress or acute neurologic conditions.
  • Excessive adrenergic stimulation is a primary suspected mechanism for SCD.
  • Neurocardiogenic injury impacts the myocardium and electrical conduction, potentially causing heart failure and arrhythmias.

Observation:

  • Stress cardiomyopathy, also known as takotsubo cardiomyopathy or apical ballooning syndrome, presents characteristic features.
  • Diagnostic tools include echocardiography and cardiovascular magnetic resonance imaging.
  • Neurologic conditions like epilepsy and stroke are associated with increased risk of sudden death.

Findings:

  • Sympathetic overstimulation can induce neurocardiogenic injury, affecting cardiac function.
  • The chapter details the history, definition, pathophysiology, triggers, and clinical manifestations of neurocardiogenic injury.
  • Specific neurologic conditions, including sudden unexplained death in epilepsy (SUDEP) and stroke, are discussed in relation to SCD.

Implications:

  • Understanding neurocardiogenic injury is crucial for preventing stress-induced cardiac events.
  • Early diagnosis and management of conditions predisposing to SCD are vital.
  • Further research into the link between neurologic disease and cardiac events can improve patient outcomes.