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Brain perfusion single photon emission computed tomography abnormality in MRI-negative stroke-like patients post COVID-19 vaccination
Stroke-like symptoms after COVID-19 vaccination was thought to be functional if there was no anatomical image abnormality. We aimed to analyze brain perfusion changes in these patients. A case-control study of brain perfusion single photon emission computed tomography (SPECT) of 12 vaccinated patients with left-sided stroke-like symptoms were compared with 12 age- and gender-matched normal interictal brain SPECTs using voxel-based analysis. Significant hyperperfusion was seen on the right side in postcentral, inferior parietal, mid temporal, parahippocampal, and caudate regions, and on the left side in the thalamus, hippoc...
Source: Medicine - November 25, 2022 Category: Internal Medicine Tags: Research Article: Observational Study Source Type: research

Prolonged migraine aura resembling ischemic stroke following CoronaVac vaccination: an extended case series
We report 8 patients with focal neurological symptoms after receiving inactivated virus vaccine, CoronaVac.Case seriesPatients were aged 24 –48 years and 75% were female. Acute onset of focal neurological symptoms occurred within the first 24 h after vaccination in 75% and between 1-7d in 25%. All presented with lateralized sensory deficits, motor deficits, or both, of 2–14 day duration. Migraine headache occurred in half of t he patients. Magnetic resonance imaging of the brain during and after the attacks did not demonstrate any abnormalities suggesting ischemic stroke. All patients showed moderately large regi...
Source: The Journal of Headache and Pain - January 21, 2022 Category: Neurology Source Type: research