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Large hemorrhagic stroke after ChAdOx1 nCoV-19 vaccination: A case report
Mário L de Mélo Silva1,2,3,4, David P Lopes4,5
1Medical School, Universidade Federal de Pernambuco, Recife, Brazil.
Background:
The anti-COVID-19 vaccines are new, and we should be alert of potential adverse effects of them.
Aims Of The Study:
To report a case of a large hemorrhagic stroke 5 days after ChAdOx1 nCoV-19 vaccination.
Methods:
Clinical, imaging, and laboratory data of a patient with stroke admitted to our emergency department.
Results:
A woman, 57 years old, took the first dose of the ChAdOx1 nCoV-19 vaccine and shortly thereafter presented mild systemic symptoms and started on aspirin. On day 5, she had a sudden onset of sweating and paleness, which has followed by left hemiparesis, vomiting, and somnolence. Computed tomography showed a large right deep frontal lobe parenchymal hematoma with the inundation of the entire ventricular system. Platelets count, fibrinogen, prothrombin time, and D-dimer were normal. Digital subtraction angiography did not show any signs of thrombosis or aneurysms in brain circulation.
Conclusions:
Clinicians should be aware of cerebrovascular adverse effects of ChAdOx1 nCoV-19, including out-of-context of vaccine-induced immune thrombotic thrombocytopenia.
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