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Published on: December 28, 2014
Specifically Decreased Thalamic Blood Flow Following COVID-19 Infection
Taiki Matsubayashi1, Kota Yokoyama2, Ukihide Tateishi2
1From the Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
Abstract:
Although long COVID refers to numerous COVID-19-related symptoms after infection, including depression, fatigue, anosmia, sleep disturbances, and brain fog, the etiology of long COVID remains largely unknown. A 41-year-old woman presented with a 3-week history of complete insomnia without drowsiness throughout the day after contracting COVID-19. SPECT using N -isopropyl-p-[ 123 I] iodoamphetamine showed a significant regional cerebral blood flow reduction in the bilateral thalamus. We diagnosed her as having insomnia accompanied by thalamic hypoperfusion related to COVID-19 infection. To our knowledge, this is the first case of reduced regional cerebral blood flow specifically confined to the thalamus.
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