Cocaine use and delayed myocardial ischaemia and/or infarction
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1University Hospitals Leicester, Leicester, UK.
Insights
Cocaine use can cause delayed myocardial ischemia and infarction, even without existing coronary artery disease. This case highlights the cardiac risks associated with cocaine, emphasizing the potential for delayed reactions post-ingestion.
Area of Science:
- Cardiology
- Toxicology
- Pharmacology
Background:
- Cocaine is a potent stimulant with known cardiovascular risks.
- Myocardial ischemia and infarction are serious potential complications.
- Coronary artery disease is a common cause of cardiac events.
Observation:
- A 37-year-old woman presented with chest pain post-cocaine use.
- Investigations revealed significant myocardial ischemia despite no flow-limiting coronary disease on angiography.
- This suggests non-atherosclerotic mechanisms for cardiac injury.
Findings:
- Cocaine can induce myocardial ischemia and infarction through various mechanisms.
- These mechanisms include coronary vasospasm, increased myocardial oxygen demand, and direct toxicity.
- Delayed reactions occurring after initial cocaine ingestion are a significant risk.
Implications:
- Healthcare providers should consider cocaine use in patients presenting with myocardial ischemia, especially younger individuals without traditional risk factors.
- Awareness of delayed cardiac effects of cocaine is crucial for patient management and risk stratification.
- Further research into the pathophysiology of cocaine-induced cardiovascular events is warranted.
Abstract:
A 37-year-old woman was admitted into the coronary care unit following chest pain after using cocaine. She was found to have significant myocardial ischaemia on blood and ECG investigations despite a recent coronary angiogram that had not demonstrated flow-limiting coronary disease. This case report summarises the risks of myocardial ischaemia and/or infarction for patients taking cocaine and the pathophysiology behind it, focusing in particular on the risks of delayed reaction some time after cocaine ingestion.