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pH-dependent cocaine-induced cardiotoxicity.

R Y Wang1

  • 1Department of Emergency Medicine, Rhode Island Hospital, Brown University School of Medicine, Providence, USA.

The American Journal of Emergency Medicine
|August 19, 1999
PubMed
Summary
This summary is machine-generated.

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Severe cocaine toxicity can cause dangerous acidemia and cardiac issues. Prompt supportive care, including sodium bicarbonate, effectively reverses these life-threatening effects.

Area of Science:

  • Toxicology
  • Cardiology
  • Emergency Medicine

Background:

  • Severe cocaine toxicity presents with significant acidemia and cardiac dysfunction.
  • Manifestations include seizures, psychomotor agitation, and cardiopulmonary arrest.

Observation:

  • Four patients exhibited acidemia and electrocardiographic abnormalities such as prolonged QRS and QTc intervals, and rightward T40 ms axis deviation.
  • These clinical presentations indicate severe toxicity impacting cardiac conduction.

Findings:

  • Treatment with hyperventilation, sedation, active cooling, and sodium bicarbonate normalized blood pH.
  • Cardiac conduction abnormalities were reversed following this supportive care regimen.

Implications:

Related Experiment Videos

  • Acidemia exacerbates cocaine-induced cardiac disorders by impairing conduction and contractility.
  • Effective supportive care, focusing on pH normalization, is crucial for managing cocaine toxicity and its cardiac sequelae.