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

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

Abstract 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...

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Bibliographic Details
Main Authors: Rachel Wells, Felix Paterson, Stephen Bacchi, Amanda Page, Mathias Baumert, Dennis H. Lau
Format: Article
Language:English
Published: Wiley 2020-06-01
Series:Journal of Arrhythmia
Subjects:
cerebral blood flow velocity
cognitive dysfunction
neurovascular coupling
postural tachycardia syndrome
transcranial Doppler
Online Access:https://doi.org/10.1002/joa3.12325
Description
Summary:Abstract 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

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