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Prolonged QT interval and cocaine use

R Perera1, A Kraebber, M J Schwartz

  • 1Department of Medicine, St. Luke's-Roosevelt Hospital, College of Physicians and Surgeons, Columbia University New York, New York 10025, USA.

Journal of Electrocardiology
|December 31, 1997
PubMed
Summary
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Cocaine use can cause heart rhythm problems, like QT interval prolongation, even in young, asymptomatic individuals. This cardiac electrical abnormality in a teen resolved quickly, highlighting the need for awareness in cocaine abuse management.

Area of Science:

  • Cardiology
  • Clinical Electrophysiology
  • Toxicology

Background:

  • Cocaine use is associated with significant cardiovascular risks.
  • Cardiac electrical abnormalities from cocaine are documented in animal models but lack human correlation.
  • Routine care for cocaine abusers often involves surveillance for cardiovascular complications.

Observation:

  • A 17-year-old female presented after a cocaine binge.
  • She was asymptomatic from a cardiological perspective.
  • An electrocardiogram revealed QT interval prolongation upon admission.

Findings:

  • The prolonged QT interval normalized within 24 hours of observation.
  • This case highlights a transient electrophysiological effect of cocaine in a human subject.

Related Experiment Videos

  • The findings correlate with animal studies on cocaine's impact on cardiac electrical activity.

    • Implications:

    • This case underscores the potential for cocaine to induce acute cardiac electrical disturbances in adolescents.
    • Awareness of these electrophysiological effects is crucial for clinicians managing cocaine abuse.
    • Further research is needed to fully understand the human electrophysiologic effects of cocaine.