Evidence map›Paper›PMID 30689678›Full record

ReviewNeurophotonics2018

Assessing low-frequency oscillations in cerebrovascular diseases and related conditions with near-infrared spectroscopy: a plausible method for evaluating cerebral autoregulation?

Adam Vittrup Andersen, Sofie Amalie Simonsen, Henrik Winther Schytz, Helle Klingenberg Iversen

Open access · bronzeAbstract readReview
In one paragraph

Review in Neurophotonics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.1field-weighted citation impact, top 8% of its field
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

33 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. The role of impaired autoregulation in cerebral small vessel disease and vascular cognitive impairment.International journal of stroke : official journal of the International Stroke Society · 2026
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  18. Cerebrovascular Impedance as a Function of Cerebral Perfusion Pressure.IEEE open journal of engineering in medicine and biology · 2023
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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

4 authors at 2 institutions in 1 country.

Adam Vittrup AndersenRigshospitalet, Department of Neurology, Glostrup, Denmark.ORCID https://orcid.org/0000-0002-3869-2175
Sofie Amalie SimonsenRigshospitalet, Department of Neurology, Glostrup, Denmark.ORCID https://orcid.org/0000-0002-1987-7318
Henrik Winther SchytzRigshospitalet, Department of Neurology, Glostrup, Denmark.ORCID https://orcid.org/0000-0002-6262-2986
Helle Klingenberg IversenRigshospitalet, Department of Neurology, Glostrup, Denmark.ORCID https://orcid.org/0000-0002-5880-6352
Rigshospitalet · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCerebral autoregulation (CA) is the brain's ability to always maintain an adequate and relatively constant blood supply, which is often impaired in cerebrovascular diseases. Near-infrared spectroscopy (NIRS) examines oxygenated hemoglobin (OxyHb) in the cerebral cortex. Low- and very low-frequency oscillations (

aimTo systematically review published results on OxyHb LFOs and VLFOs in cerebrovascular diseases and related conditions measured with NIRS. APPROACH: A systematic search was performed in the MEDLINE database, which generated 36 studies relevant for inclusion.

resultsHealthy people have relatively stable LFOs. LFO amplitude seems to reflect myogenic CA being decreased by vasomotor paralysis in stroke, by smooth muscle damage or as compensatory action in other conditions but can also be influenced by the sympathetic tone. VLFO amplitude is believed to reflect neurogenic and metabolic CA and is lower in stroke, atherosclerosis, and with aging. Both LFO and VLFO synchronizations appear disturbed in stroke, while the former is also altered in internal carotid stenosis and hypertension.

conclusionWe conclude that amplitudes of LFOs and VLFOs are relatively robust measures for evaluating mechanisms of CA and synchronization analyses can show temporal disruption of CA. Further research and more coherent methodologies are needed.

Indexed as

cerebral autoregulationcerebrovascular diseaseslow-frequency oscillationsnear-infrared spectroscopyrisk of stroke

Identifiers

PMID30689678
PMCPMC6156398
OpenAlexW2889965831

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.