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Ventricular arrhythmias in ischemic heart disease

J N Weiss1, K Nademanee, W G Stevenson

  • 1Department of Medicine, UCLA School of Medicine 90024.

Annals of Internal Medicine
|May 1, 1991
PubMed

Insights

Ventricular arrhythmias are a major cause of death in coronary artery disease. This review covers the causes, outlook, and treatments for these arrhythmias in both acute and chronic conditions.

Area of Science:

  • Cardiology
  • Cardiac Electrophysiology

Background:

  • Ventricular arrhythmias are a primary cause of mortality in patients with coronary artery disease (CAD).
  • Understanding the pathophysiology, prognosis, and therapeutic strategies for these arrhythmias is critical.

Purpose of the Study:

  • To review current knowledge on ventricular arrhythmias in acute and chronic CAD.
  • To discuss the experimental basis, autonomic nervous system modulation, and human electrophysiology of these arrhythmias.
  • To outline current therapeutic principles for managing ventricular arrhythmias in CAD.

Main Methods:

  • Review of experimental data on arrhythmogenesis in acute ischemia and chronic infarction.
  • Analysis of endocardial mapping studies in humans with chronic myocardial infarction.
  • Synthesis of current therapeutic approaches, including pharmacologic, surgical, catheter ablation, and device-based therapies.

Main Results:

  • Pathophysiologic differences exist between arrhythmias in acute ischemia and chronic infarction.
  • The autonomic nervous system plays a significant role in modulating ischemic arrhythmogenesis.
  • Endocardial mapping provides insights into human ventricular tachycardia mechanisms and aids risk stratification.

Conclusions:

  • Effective management of ventricular arrhythmias in CAD requires understanding their distinct pathophysiologic underpinnings.
  • Therapeutic strategies encompass a range of interventions tailored to individual patient needs.
  • Continued research is essential for improving outcomes in patients with CAD-related ventricular arrhythmias.

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