Evidence map›Paper›PMID 30117360›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2019

Impaired cerebral autoregulation and neurovascular coupling in middle cerebral artery stroke: Influence of severity?

Angela Sm Salinet, Nathália Cc Silva, Juliana Caldas, Daniel S de Azevedo, Marcelo de-Lima-Oliveira, Ricardo C Nogueira, Adriana B Conforto, Manoel J Texeira, Thompson G Robinson, Ronney B Panerai and 1 more

Abstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 2 pooled it
–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

47 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. INFOMATAS multi-center systematic review and meta-analysis individual patient data of dynamic cerebral autoregulation in ischemic stroke.International journal of stroke : official journal of the International Stroke Society · 2020
    Pooled it
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  10. WSB.bioRxiv : the preprint server for biology · 2025
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  17. Cerebral hemodynamics and cognitive functions in the acute and subacute stage of mild ischemic stroke: a longitudinal pilot study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
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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

11 authors.

Angela Sm SalinetNeurology Department, School of Medicine, University of São Paulo, Hospital das Clinicas, São Paulo, Brazil.ORCID 0000-0002-4192-5160
Nathália Cc SilvaNeurology Department, School of Medicine, University of São Paulo, Hospital das Clinicas, São Paulo, Brazil.
Juliana CaldasNeurology Department, School of Medicine, University of São Paulo, Hospital das Clinicas, São Paulo, Brazil.
Daniel S de AzevedoNeurology Department, School of Medicine, University of São Paulo, Hospital das Clinicas, São Paulo, Brazil.
Marcelo de-Lima-OliveiraNeurosurgical Division, Neurology Department, School of Medicine, University of São Paulo, Hospital das Clinicas, São Paulo, Brazil.
Ricardo C NogueiraNeurology Department, School of Medicine, University of São Paulo, Hospital das Clinicas, São Paulo, Brazil.
Adriana B ConfortoNeurology Department, School of Medicine, University of São Paulo, Hospital das Clinicas, São Paulo, Brazil.
Manoel J TexeiraEngineering, Modelling and Applied Social Sciences Centre, Federal ABC University, Sao Bernardo do Campo, Sao Paulo, Brazil.
Thompson G RobinsonDepartment of Cardiovascular Sciences, Cerebral Haemodynamics in Ageing and Stroke Medicine Research Group, University of Leicester, Leicester, UK.
Ronney B PaneraiDepartment of Cardiovascular Sciences, Cerebral Haemodynamics in Ageing and Stroke Medicine Research Group, University of Leicester, Leicester, UK.ORCID 0000-0001-6983-8707
Edson Bor-Seng-ShuNeurosurgical Division, Neurology Department, School of Medicine, University of São Paulo, Hospital das Clinicas, São Paulo, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We aimed to assess cerebral autoregulation (CA) and neurovascular coupling (NVC) in stroke patients of differing severity comparing responses to healthy controls and explore the association between CA and NVC with functional outcome. Patients admitted with middle cerebral artery (MCA) stroke and healthy controls were recruited. Stroke severity was defined by the National Institutes of Health Stroke Scale (NIHSS) scores: ≤4 mild, 5-15 moderate and ≥16 severe. Transcranial Doppler ultrasound and Finometer recorded MCA cerebral blood flow velocity (CBFv) and blood pressure, respectively, over 5 min baseline and 1 min passive movement of the elbow to calculate the autoregulation index (ARI) and CBFv amplitude responses to movement. All participants were followed up for three months. A total of 87 participants enrolled in the study, including 15 mild, 27 moderate and 13 severe stroke patients, and 32 control subjects. ARI was lower in the affected hemisphere (AH) of moderate and severe stroke groups. Decreased NVC was seen bilaterally in all stroke groups. CA and NVC correlated with stroke severity and functional outcome. CBFv regulation is significantly impaired in acute stroke, and further compromised with increasing stroke severity. Preserved CA and NVC in the acute period were associated with improved three-month functional outcome.

Indexed as

AdultAgedBlood Flow VelocityBlood PressureBrain IschemiaCase-Control StudiesCerebrovascular CirculationFemaleHomeostasisHumansInfarction, Middle Cerebral ArteryMaleMiddle AgedNeurovascular CouplingRecovery of FunctionSeverity of Illness Indexcerebral autoregulationneurovascular couplingoutcomeseverityStroke

Identifiers

PMID30117360
PMCPMC6827118

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.