Abstract
The association between dysautonomia and long-COVID syndrome has gained considerable
interest. This study retrospectively characterized the findings of autonomic reflex
screen (ARS) in long-COVID patients presenting with orthostatic intolerance (OI).
Fourteen patients were identified. All patients had normal cardiovagal function and
2 patients had abnormal sudomotor function. The head-up tilt table (HUTT) was significantly
abnormal in 3 patients showing postural orthostatic tachycardia syndrome (POTS). CASS
ranged from 0 to 2. The most common clinical scenario was symptoms of orthostatic
intolerance without demonstrable HUTT orthostatic tachycardia or orthostatic hypotension
(OH) (n = 8, 57 %). In our case series, most long-COVID patients presenting to our laboratory
with OI had no significant HUTT abnormalities; only 3 patients met the criteria for
POTS.
Keywords
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Article Info
Publication History
Published online: June 01, 2022
Accepted:
May 30,
2022
Received in revised form:
May 8,
2022
Received:
January 17,
2022
Identification
Copyright
© 2022 Elsevier B.V. All rights reserved.
