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Atrial flutter and fibrillation following bee stings
1West Virginia University School of Medicine, Department of Medicine, Morgantown, USA.
The American Journal of Cardiology
|November 14, 1997
Summary
Bee stings can trigger atrial tachyarrhythmias, a rare heart rhythm disorder, even without allergic reactions. This study reports two such cases, highlighting a previously undocumented association.
Area of Science:
- Cardiology
- Toxicology
- Immunology
Background:
- Bee stings are common triggers for allergic reactions, including anaphylaxis.
- Cardiac arrhythmias are known complications of severe allergic responses.
- The direct cardiac effects of bee venom components are not fully elucidated.
Observation:
- Two patients presented with new-onset atrial tachyarrhythmias after bee stings.
- Neither patient exhibited signs or symptoms of anaphylaxis.
- Electrocardiographic findings confirmed the presence of atrial tachyarrhythmias.
Findings:
- Bee venom exposure can precipitate atrial tachyarrhythmias independently of anaphylaxis.
- This suggests a potential direct cardiotoxic effect of bee venom components on atrial electrophysiology.
- The mechanism may involve venom constituents directly affecting ion channels or cardiac tissue.
Implications:
- Clinicians should consider atrial tachyarrhythmias in the differential diagnosis of cardiac events post-bee sting, even without anaphylaxis.
- Further research is warranted to understand the specific mechanisms of bee venom-induced atrial tachyarrhythmias.
- This finding may inform management strategies for patients experiencing cardiac symptoms after insect stings.