Neurological complications after a single Hymenoptera insect sting are very rare. The authors of this paper describe two instances of cerebral ischemic stroke that occurred immediately after a wasp sting. Two distinct pathomechanisms involved in the cases are put forward. When diagnosing such cases, it is vital to rule out the possibility of an immunoglobulin E (IgE)-dependent reaction of hypersensitivity. However, if sIgE antibodies against wasp venom extract and/or its allergenic components are detected, after hospitalization the patient should be qualified for venom immunotherapy, which is the only efficient method of protection from severe allergic reactions caused by an insect sting. Although the incidence of ischemic stroke in patients stung by insects is very low, it is important to be aware of this complication. This will allow rapid implementation of appropriate diagnostics and treatment. The optimal stroke treatment (thrombolysis or mechanical thrombectomy) in these rare cases has not yet been established.
Keywords: ischemic stroke; venom immunotherapy; wasp sting; wasp venom allergy.
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