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NSAIDS-induced anaphylaxis precipitating acute coronary vasospasm
1Emergency Department, National University Hospital, Singapore. SimTB@NUH.com.sg
Nonsteroidal anti-inflammatory drug (NSAID) anaphylaxis can cause coronary artery vasospasm and myocardial infarction, even with normal coronary arteries. Clinicians must consider this risk in patients with suspected or known heart disease.
Area of Science:
- Cardiology
- Immunology
- Pharmacology
Background:
- Anaphylaxis is a severe allergic reaction that can affect multiple organ systems.
- Nonsteroidal anti-inflammatory drugs (NSAIDs) are common triggers for anaphylaxis.
- Coronary artery vasospasm can lead to myocardial infarction (heart attack).
Observation:
- A case is presented where NSAID-induced anaphylaxis precipitated coronary artery vasospasm.
- The vasospasm resulted in myocardial infarction.
- Coronary angiography revealed normal coronary arteries, ruling out obstructive coronary artery disease.
Findings:
- NSAID-induced anaphylaxis can directly trigger coronary artery vasospasm.
- This vasospasm can cause acute myocardial infarction in the absence of underlying coronary atherosclerosis.
- The study discusses potential pathophysiological mechanisms linking anaphylaxis to coronary vasospasm.
Implications:
- Attending clinicians should be aware of this rare but serious complication of NSAID-induced anaphylaxis.
- This awareness is particularly crucial in patients with existing or suspected coronary artery disease.
- Prompt recognition and management of anaphylaxis are essential to prevent cardiac events.
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