Evidence map›Paper›PMID 34935426›Full record

ArticleJournal of the American Heart Association2022

Differential Hemodynamic Response of Pial Arterioles Contributes to a Quadriphasic Cerebral Autoregulation Physiology.

Samuel P Klein, Veerle De Sloovere, Geert Meyfroidt, Bart Depreitere

Open access · goldAbstract read
In one paragraph

Article in Journal of the American Heart Association, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.2field-weighted citation impact, top 10% 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

25 citing papers in PubMed, 48 citations in OpenAlex.

  1. Loss of cerebral autoregulation drives abnormal perfusion patterns after stroke.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  20. The pressure reactivity index as a measure of cerebral autoregulation and its application in traumatic brain injury management.Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine · 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 1 institution in 1 country.

Samuel P KleinDepartment of Neurosurgery University Hospitals Leuven Leuven Belgium.ORCID 0000-0001-5595-4440
Veerle De SloovereDepartment of Anesthesiology University Hospitals Leuven Leuven Belgium.
Geert MeyfroidtDepartment of Intensive Care Medicine University Hospitals Leuven Leuven Belgium.
Bart DepreitereDepartment of Neurosurgery University Hospitals Leuven Leuven Belgium.ORCID 0000-0002-7458-0648
Universitair Ziekenhuis Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background Cerebrovascular autoregulation (CA) regulates cerebral vascular tone to maintain near-constant cerebral blood flow during fluctuations in cerebral perfusion pressure (CPP). Preclinical and clinical research has challenged the classic triphasic pressure-flow relationship, leaving the normal pressure-flow relationship unclear. Methods and Results We used in vivo imaging of the hemodynamic response in pial arterioles to study CA in a porcine closed cranial window model during nonpharmacological blood pressure manipulation. Red blood cell flux was determined in 52 pial arterioles during 10 hypotension and 10 hypertension experiments to describe the pressure-flow relationship. We found a quadriphasic pressure-flow relationship with 4 distinct physiological phases. Smaller arterioles demonstrated greater vasodilation during low CPP when compared with large arterioles (

Indexed as

HypotensionPia MaterAnimalsArteriolesCerebrovascular CirculationHomeostasisHumansSwineVasodilationcerebral blood flowcerebral perfusion pressurecerebrovascular autoregulation

Identifiers

PMID34935426
PMCPMC9075199
OpenAlexW4200217948

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.