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Related Experiment Videos

The cocaine-abused heart.

Kathryn Buchanan Keller1, Louis Lemberg

  • 1Florida Atlantic University Christine E. Lynn College of Nursing, Boca Raton, Fla., USA.

American Journal of Critical Care : an Official Publication, American Association of Critical-Care Nurses
|November 19, 2003
PubMed
Summary

Cocaine use is a leading cause of emergency department visits. Cocaine-induced chest pain stems from myocardial ischemia due to vasospasm, not plaque rupture, with cardiac troponin levels being the most reliable diagnostic test.

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Area of Science:

  • Cardiology
  • Toxicology
  • Emergency Medicine

Background:

  • Cocaine, derived from Erythroxylon coca, has a long history of recreational and medical use.
  • Its popularity surged in the late 1800s and again in the 1980s, leading to significant public health concerns.
  • Currently, cocaine use results in more emergency department visits than other illicit drugs.

Observation:

  • Cocaine users, often young, present with chest pain, frequently misattributed to atherosclerotic disease.
  • This pain is primarily caused by myocardial ischemia resulting from coronary vasospasm, not thrombotic events.
  • Electrocardiogram (ECG) findings can be misleading due to common normal variants in certain populations.

Findings:

  • Measurement of cardiac troponin levels is the most accurate diagnostic method for cocaine-induced myocardial ischemia.
  • Cocaine-induced chest pain often originates from the chest wall but can be linked to vasospasm.
  • Most cocaine-induced chest pains do not progress to myocardial infarction (MI).

Implications:

  • Understanding the pathophysiology of cocaine-induced chest pain is crucial for accurate diagnosis and treatment.
  • Percutaneous coronary intervention and angioplasty are preferred over thrombolysis due to vasospasm being the primary issue.
  • This highlights the need for targeted interventions for cardiovascular complications associated with illicit drug use.

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