Evidence map›Paper›PMID 33991075›Full record

ReviewBrain and behavior2021

Cerebral blood flow impairment and cognitive decline in heart failure.

Ana Ovsenik, Matej Podbregar, Andrej Fabjan

Open access · goldAbstract readReview
In one paragraph

Review in Brain and behavior, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 1 pooled it
10.2field-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

76 citing papers in PubMed, 1 synthesis or guideline pooled it, 113 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. A cardiovascular-motor axis framework for perfusion-mediated motor impairment.International journal of cardiology. Heart & vasculature · 2026
    Review
  5. Review
  6. Article
  7. The role of vascular risk factors in white matter tract microstructure: a multi-cohort study in older adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  8. Observational
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Heart-Brain Axis: Subclinical Cardiovascular Changes and Brain Health.Journal of the American Heart Association · 2026
    Review
  16. Relationship between cardiac index and brain volume in the UK Biobank.Cerebral circulation - cognition and behavior · 2026
    Article
  17. Article
  18. Review
  19. Article
  20. Article

16 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 1 institution in 1 country.

Ana OvsenikFaculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.
Matej PodbregarFaculty of Medicine, Department for Internal Medicine, University of Ljubljana, Ljubljana, Slovenia.
Andrej FabjanFaculty of Medicine, Institute for Physiology, University of Ljubljana, Ljubljana, Slovenia.ORCID 0000-0001-8527-4948
University of Ljubljana · SI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeCognitive decline is an important contributor to disability in patients with chronic heart failure, affecting 25%-50% of patients. The aim of this review is to stress the importance of understanding pathophysiological mechanisms of heart failure involved in cognitive decline.

methodsAn extensive PubMed search was conducted for the literature on the basic mechanisms of cerebral blood flow regulation, the effect of cardiac dysfunction on cerebral blood flow, and possible mechanisms underlying the association between cardiac dysfunction and cognitive decline.

resultsPublished literature supports the thesis that cardiac dysfunction leads to cerebral blood flow impairment and predisposes to cognitive decline. One of the postulated mechanisms underlying cognitive decline in chronic heart failure is chronic regional hypoperfusion of critical brain areas. Cognitive function may be further compromised by microvascular damage due to cardiovascular risk factors. Furthermore, it is implied that cerebral blood flow assessment could enable early recognition of patients at risk and help guide appropriate therapeutic strategies.

conclusionInterdisciplinary knowledge in the fields of neurology and cardiology is essential to clarify heart and brain interconnections in chronic heart failure. Understanding and identifying the basic neuropathophysiological changes in chronic heart failure could help with developing methods for early recognition of patients at risk, followed by institution of therapeutic actions to prevent or decrease cognitive decline.

Indexed as

Cognitive DysfunctionHeart FailureBrainCerebrovascular CirculationCognitionHumansautonomic nervous systemcerebral autoregulationcerebral blood flowcognitive declineheart failureneurovascular coupling

Identifiers

PMID33991075
PMCPMC8213942
OpenAlexW3160519291

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.