Brain fog in postural tachycardia syndrome: An objective cerebral blood flow and neurocognitive analysis

Background It remains unclear whether brain fog is related to impaired cerebral blood flow (CBF) in postural tachycardia syndrome (POTS) patients. Methods We assessed CBF in the posterior cerebral artery (PCA) using transcranial Doppler with visual stimuli in 11 POTS and 8 healthy subjects in the se...

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Bibliographic Details
Published in:Journal of arrhythmia 2020-06, Vol.36 (3), p.549-552
Main Authors: Wells, Rachel, Paterson, Felix, Bacchi, Stephen, Page, Amanda, Baumert, Mathias, Lau, Dennis H.
Format: Article
Language:English
Subjects:
Analysis
Blood flow
Cardiac arrhythmia
Care and treatment
cerebral blood flow velocity
Cognition & reasoning
Cognitive ability
cognitive dysfunction
Ethics
Executive function
Fludrocortisone
Heart beat
Information processing
Ivabradine
Medical equipment and supplies industry
Medical test kit industry
Memory
neurovascular coupling
postural tachycardia syndrome
Rapid Communication
Tachycardia
transcranial Doppler
Ultrasonic imaging
Velocity
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Summary:Background It remains unclear whether brain fog is related to impaired cerebral blood flow (CBF) in postural tachycardia syndrome (POTS) patients. Methods We assessed CBF in the posterior cerebral artery (PCA) using transcranial Doppler with visual stimuli in 11 POTS and 8 healthy subjects in the seated position, followed by neurocognitive testing. Results CBF parameters were similar between the two groups. POTS patients demonstrated significantly longer latency in delayed match to sample response time and greater errors in attention switching task. Conclusions Impaired short‐term memory and alertness may underlie the symptom of brain fog in POTS patients, despite normal CBF.
ISSN:1880-4276
1883-2148
DOI:10.1002/joa3.12325