Evidence map›Paper›PMID 28989801›Full record

ArticleStroke and vascular neurology2017

Blood pressure gradients in cerebral arteries: a clue to pathogenesis of cerebral small vessel disease.

Pablo J Blanco, Lucas O Müller, J David Spence

Open access · goldAbstract read
In one paragraph

Article in Stroke and vascular neurology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 3 pooled it
10.6field-weighted citation impact, top 1% 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

84 citing papers in PubMed, 3 syntheses or guidelines pooled it, 202 citations in OpenAlex.

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  8. Typical distribution of hypertensive cerebral microbleed: a matched case-control study using primary aldosteronism.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
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  19. White matter hyperintensity spatial patterns: Risk factors and clinical correlates.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
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24 more citing papers are in PubMed but not listed here.

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

3 authors at 2 institutions in 2 countries.

Pablo J BlancoNational Laboratory for Scientific Computing, Petrópolis, Brazil.
Lucas O MüllerNational Laboratory for Scientific Computing, Petrópolis, Brazil.
J David SpenceStroke Prevention & Atherosclerosis Research Centre, Robarts Research Institute, Western University, London, Canada.ORCID 0000-0001-7478-1098
Laboratório Nacional de Computação Científica · BRWestern University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleThe role of hypertension in cerebral small vessel disease is poorly understood. At the base of the brain (the 'vascular centrencephalon'), short straight arteries transmit blood pressure directly to small resistance vessels; the cerebral convexity is supplied by long arteries with many branches, resulting in a drop in blood pressure. Hypertensive small vessel disease (lipohyalinosis) causes the classically described lacunar infarctions at the base of the brain; however, periventricular white matter intensities (WMIs) seen on MRI and WMI in subcortical areas over the convexity, which are often also called 'lacunes', probably have different aetiologies.

objectivesWe studied pressure gradients from proximal to distal regions of the cerebral vasculature by mathematical modelling. METHODS AND

resultsBlood flow/pressure equations were solved in an Anatomically Detailed Arterial Network (ADAN) model, considering a normotensive and a hypertensive case. Model parameters were suitably modified to account for structural changes in arterial vessels in the hypertensive scenario. Computations predict a marked drop in blood pressure from large and medium-sized cerebral vessels to cerebral peripheral beds. When blood pressure in the brachial artery is 192/113 mm Hg, the pressure in the small arterioles of the posterior parietal artery bed would be only 117/68 mm Hg. In the normotensive case, with blood pressure in the brachial artery of 117/75 mm Hg, the pressure in small parietal arterioles would be only 59/38 mm Hg.

conclusionThese findings have important implications for understanding small vessel disease. The marked pressure gradient across cerebral arteries should be taken into account when evaluating the pathogenesis of small WMIs on MRI. Hypertensive small vessel disease, affecting the arterioles at the base of the brain should be distinguished from small vessel disease in subcortical regions of the convexity and venous disease in the periventricular white matter.

Indexed as

Arterial PressureModels, CardiovascularAnimalsBrainCerebral ArteriesCerebral Small Vessel DiseasesComputer SimulationHumansHypertensionMagnetic Resonance ImagingStroke, Lacunaramyloidblood pressurelacunarlobarmathematicalmodellingSmall vessel disease

Identifiers

PMID28989801
PMCPMC5628379
OpenAlexW2622764401

What OpenQuestion holds

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LicenceCC BY-NC
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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.