Key result
Transcranial Doppler assessments of cerebral autoregulation in orthostatic intolerance reveal conflicting evidence on whether cerebral blood velocity changes reflect impaired autoregulation or other factors.
Design
Review
Authors
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Clinicians should interpret transcranial Doppler findings cautiously in orthostatic intolerance; leaves open the mechanisms driving cerebral blood velocity changes.
The review highlights ongoing controversies in interpreting transcranial Doppler measurements of cerebral blood velocity in patients with orthostatic intolerance, neurally mediated syncope, and POTS.
Schondorf et al. (2001) conducted a review in Orthostatic intolerance, neurally mediated syncope (NMS), and postural tachycardia syndrome (POTS). Transcranial Doppler measurements of cerebral blood velocity was evaluated. Transcranial Doppler assessments of cerebral autoregulation in orthostatic intolerance reveal conflicting evidence on whether cerebral blood velocity changes reflect impaired autoregulation or other factors.
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