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Published on: September 17, 2014
[Dorsal medulla oblongata stroke after a wasp sting]
G Taurin1, M L Canneva-Bourel, J-M Delafosse
1Service de Neurologie, Hôpital Broussais, Saint-Malo.
Introduction:
Although wasp stings can cause local reactions such as pain, flare, edema, swelling and severe reactions, including anaphylaxis; neurological vascular complications are rare.
Case Report:
We report a case of a 36-year-old male who developed focal neurological symptoms after a wasp sting. The brain MRI showed an infarct in the left dorsal medulla. The blood test has showed an elevated level of venom-specific IgE antibodies and the skin test with wasp venom was highly positive. Improvement occurred rapidly after treatment with methylprednisone. The postulated mechanisms include vasoconstriction and platelet aggregation secondary to an injection of distinct allergens contained in wasp venom.
Conclusion:
It would thus be important to ask patients about any recent wasp sting, in order to provide appropriate treatment.
Insights
A rare neurological complication, a brainstem infarct, occurred in a patient following a wasp sting. Prompt treatment with methylprednisone led to rapid improvement, highlighting the importance of considering stings in neurological cases.
Area of Science:
- Neurology
- Immunology
- Toxicology
Background:
- Wasp stings commonly cause local or systemic allergic reactions.
- Neurological and vascular complications following wasp stings are infrequently reported.
Observation:
- A 36-year-old male presented with focal neurological deficits after a wasp sting.
- Brain MRI revealed a left dorsal medulla infarct.
- Allergy testing confirmed high sensitivity to wasp venom with elevated venom-specific IgE antibodies.
Findings:
- The patient experienced rapid improvement after treatment with methylprednisone.
- Postulated mechanisms involve venom allergens causing vasoconstriction and platelet aggregation.
- This case highlights a rare neurological vascular complication of wasp envenomation.
Implications:
- Clinicians should inquire about recent wasp stings in patients with unexplained neurological symptoms.
- Early recognition and treatment of wasp sting-related neurological events are crucial.
- Understanding venom-induced vascular effects may inform future therapeutic strategies.
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