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Mult Scler Relat Disord ; 60: 103739, 2022 Apr.
Article in English | MEDLINE | ID: covidwho-1747671


BACKGROUND: ChAdOx1-S (Covishield™/Vaxzervria, AstraZeneca) and BBV152 (Covaxin) SARS-CoV-2 vaccines are proven to be safe and effective, but rare complications have been reported. OBJECTIVE: To describe reports of central nervous system (CNS) demyelination following ChAdOx1-S and BBV152 vaccinations. METHODS & RESULTS: We report 29 (17 female; mean 38 years) cases of CNS demyelination; twenty-seven occurred in temporal association with ChAdOx1-S vaccine; two in association with BBV152 vaccine. Eleven patients had presentation with myelitis, six patients developed optic neuritis, five had acute demyelinating encephalomyelitis, three presented with brainstem demyelination, and four had multiaxial involvement. Myelin oligodendrocyte glycoprotein (MOG) antibodies were positive in ten patients. One patient with ADEM and tumefactive demyelinating lesions died after a prolonged intensive care unit stay and superimposed infection. As compared to the control group (87); the postvaccinial cases were found to have a significantly higher mean age, presence of encephalopathy (p value:0.0007), CSF pleocytosis (p value: 0.0094) and raised CSF protein (p value: 0.0062). CONCLUSIONS: It is difficult to establish a causal relationship between vaccination and neurological adverse events such as demyelination. The temporal association with the vaccination and the presence of MOG antibodies raises the possibility of an immunogenic process triggered by the vaccine in susceptible individuals.

COVID-19 , Demyelinating Diseases , Autoantibodies , COVID-19/prevention & control , COVID-19 Vaccines/adverse effects , Demyelinating Diseases/chemically induced , Female , Humans , Myelin-Oligodendrocyte Glycoprotein , SARS-CoV-2
Neurol India ; 70(1): 409-411, 2022.
Article in English | MEDLINE | ID: covidwho-1726256


Background: Postmarketing surveillance of COVID-19 vaccination reveals that the COVID-19 vaccine administration is associated with several rare but serious neurological complications. Case Report: We report a case of new-onset tumefactive demyelinating brain lesion that developed after administration of an adenovector-based COVID-19 vaccine. A middle-aged female presented with recent right hemiparesis, which was noticed 2 days after she received the first dose of the vaccine. Magnetic resonance imaging (MRI) revealed a large subcortical T2/FLAIR hyperintensities involving corpus callosum as well. The patient responded to oral methylprednisolone. At 4 weeks, a follow-up MRI revealed a reduction in size of the lesion. Conclusion: To conclude, adenovector-based COVID-19 vaccination may be associated with a tumefactive demyelinating lesion.

COVID-19 Vaccines , COVID-19 , Demyelinating Diseases/chemically induced , Adenoviridae , Brain/diagnostic imaging , Brain/pathology , COVID-19/prevention & control , COVID-19 Vaccines/adverse effects , Corpus Callosum/diagnostic imaging , Corpus Callosum/pathology , Female , Humans , Magnetic Resonance Imaging , Methylprednisolone/therapeutic use , Middle Aged , SARS-CoV-2
Hum Vaccin Immunother ; 17(11): 4099-4101, 2021 Nov 02.
Article in English | MEDLINE | ID: covidwho-1621488


Vaccination-induced demyelination is a rare, unusual side effect of certain vaccines which can cause significant damage to patient's sensory-motor abilities within days. Although COVID-19 vaccines go through rigorous clinical trials before they are injected to the general population, certain unexpected side effects remain inevitable. We herein describe a case of a 42-year-old woman who experienced acute demyelination 10 days after the Oxford-AstraZeneca vaccination. To the best of our knowledge, this is the first case of such nature and severity described regarding COVID-19 vaccines' side effects.

COVID-19 , Cerebellar Ataxia , Demyelinating Diseases , Adult , COVID-19 Vaccines , Demyelinating Diseases/chemically induced , Demyelinating Diseases/diagnosis , Female , Humans , SARS-CoV-2 , Vaccination/adverse effects