Evidence map›Paper›PMID 28821991›Full record

ReviewClinical autonomic research : official journal of the Clinical Autonomic Research Society2018

Transcranial Doppler in autonomic testing: standards and clinical applications.

Lucy Norcliffe-Kaufmann, Brahyan Galindo-Mendez, Ana-Lucia Garcia-Guarniz, Estibaliz Villarreal-Vitorica, Vera Novak

Abstract readReview
In one paragraph

Review in Clinical autonomic research : official journal of the Clinical Autonomic Research Society, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

  1. Orthostatic hypotension and acute cognitive dysfunction in Parkinson's disease: insights from functional near-infrared spectroscopy.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2026
    Article
  2. Beyond blood pressure fall: a mechanistic framework for symptom generation in orthostatic hypotension.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  3. Setting up an autonomic unit within the neurological department: a position statement of the European Federation of Autonomic Societies.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  4. Article
  5. Cerebral Blood Flow in Orthostatic Intolerance.Journal of the American Heart Association · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Familial dysautonomia.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2023
    Review
  13. Evaluation of Sympathetic Vasomotor Activity of the Brachial Arteries Using Doppler Ultrasound.Medical science monitor : international medical journal of experimental and clinical research · 2023
    Article
  14. Review
  15. Autonomic nervous system dysfunction and fatigue in multiple sclerosis: common pathophysiology or spurious association?Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2019
    Article
  16. Autonomic uprising: the tilt table test in autonomic medicine.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2019
    Review
  17. Review
  18. Treatment of autonomic dysfunction in Parkinson disease and other synucleinopathies.Movement disorders : official journal of the Movement Disorder Society · 2018
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Lucy Norcliffe-KaufmannDepartment of Neurology, New York University School of Medicine, New York, NY, USA. Lucy.Norcliffe-Kaufmann@nyumc.org.
Brahyan Galindo-MendezDepartment of Neurology, Beth Israel Deaconess Medical Center, 185 Pilgrim Road, Palmer 127, Boston, MA, 02215, USA.
Ana-Lucia Garcia-GuarnizDepartment of Neurology, Beth Israel Deaconess Medical Center, 185 Pilgrim Road, Palmer 127, Boston, MA, 02215, USA.
Estibaliz Villarreal-VitoricaDepartment of Neurology, Hospital Universitario Son Espases, Illes Balears, Spain.
Vera NovakDepartment of Neurology, Beth Israel Deaconess Medical Center, 185 Pilgrim Road, Palmer 127, Boston, MA, 02215, USA.

Funding

Training CoreU54NS065736 · NINDS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BIAGGIONI, ITALO · 2009 to 2018
$11.6M
Memory Advancement by Intranasal Insulin in Type 2 Diabetes (MemAID)R01DK103902 · NIDDK · BETH ISRAEL DEACONESS MEDICAL CENTER · PI NOVAK, VERA · 2015 to 2019
$3.7M
NIDDK NIH HHS R01 DK103902NINDS NIH HHS U54 NS065736
6 · The paper itself

Abstract

When cerebral blood flow falls below a critical limit, syncope occurs and, if prolonged, ischemia leads to neuronal death. The cerebral circulation has its own complex finely tuned autoregulatory mechanisms to ensure blood supply to the brain can meet the high metabolic demands of the underlying neuronal tissue. This involves the interplay between myogenic and metabolic mechanisms, input from noradrenergic and cholinergic neurons, and the release of vasoactive substrates, including adenosine from astrocytes and nitric oxide from the endothelium. Transcranial Doppler (TCD) is a non-invasive technique that provides real-time measurements of cerebral blood flow velocity. TCD can be very useful in the work-up of a patient with recurrent syncope. Cerebral autoregulatory mechanisms help defend the brain against hypoperfusion when perfusion pressure falls on standing. Syncope occurs when hypotension is severe, and susceptibility increases with hyperventilation, hypocapnia, and cerebral vasoconstriction. Here we review clinical standards for the acquisition and analysis of TCD signals in the autonomic laboratory and the multiple methods available to assess cerebral autoregulation. We also describe the control of cerebral blood flow in autonomic disorders and functional syndromes.

Indexed as

AnimalsAutonomic Nervous System DiseasesBlood Flow VelocityBlood PressureCerebrovascular CirculationHeart RateHomeostasisHumansUltrasonography, Doppler, TranscranialAutonomic failureAutonomic testingCerebral blood flow velocityDysautonomiaOrthostatic hypotensionSyncopeTranscranial Doppler

Identifiers

PMID28821991
PMCPMC5891134

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.