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Anaphylactoid reaction to ethanol
J M Kelso1, M U Keating, D L Squillace
1Mayo Clinic, Rochester, Minnesota.
Annals of Allergy
|May 1, 1990
Summary
A 14-year-old boy experienced allergic reactions to alcohol. Ethanol, the primary component in alcoholic beverages, was identified as the cause through a blinded challenge, suggesting a potential IgE-mediated or metabolic pathway.
Area of Science:
- Allergy and Immunology
- Toxicology
- Metabolic Disorders
Background:
- Alcohol consumption is widespread, but hypersensitivity reactions are rare.
- Understanding the mechanisms of alcohol intolerance is crucial for patient management.
Observation:
- A 14-year-old male presented with pruritic rash and facial swelling after consuming beer and wine.
- Symptoms were reproducible and linked to alcohol ingestion.
Findings:
- A blinded, placebo-controlled ethanol challenge confirmed ethanol as the causative agent.
- The reaction may involve immunoglobulin E (IgE)-mediated mechanisms or unusual ethanol metabolism, potentially leading to acetaldehyde accumulation or direct mast cell activation.
Implications:
- This case highlights the possibility of ethanol allergy, distinct from alcohol intolerance.
- Further research is needed to elucidate the precise immunological or metabolic pathways involved in ethanol hypersensitivity.