Evidence map›Paper›PMID 33049742›Full record

ArticleNephron2021

Changes in Cerebral Volume and White Matter Integrity in Adults on Hemodialysis and Relationship to Cognitive Function.

Wesley T Richerson, Laura G Umfleet, Brian D Schmit, Dawn F Wolfgram

Open access · greenAbstract read
In one paragraph

Article in Nephron, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Effect of haemodialysis on the brain and heart assessed using multiparametric MRI.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Article
  5. Cerebrovascular Reactivity and Cerebral Ischemia During Chronic Hemodialysis.Hemodialysis international. International Symposium on Home Hemodialysis · 2025
    Article
  6. Longitudinal changes in diffusion tensor imaging in hemodialysis patients.Hemodialysis international. International Symposium on Home Hemodialysis · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
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 3 institutions in 1 country.

Wesley T RichersonDepartment of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, Wisconsin, USA, wesley.richerson@marquette.edu.
Laura G UmfleetDepartment of Neurology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
Brian D SchmitDepartment of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
Dawn F WolfgramDepartment of Medicine, Medical College of Wisconsin and Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin, USA.
Marquette University · USMedical College of Wisconsin · USMilwaukee VA Medical Center · US

Funding

J. NRSA Training CoreTL1TR001437 · NCATS · MEDICAL COLLEGE OF WISCONSIN · PI THOMAS, DANNY GEORGE · 2015 to 2024
$3.7M
Intra-dialytic cerebral oximetry and cognitive decline in adults on hemodialysisK23DK113119 · NIDDK · MEDICAL COLLEGE OF WISCONSIN · PI WOLFGRAM, DAWN F. · 2018 to 2022
$883k
NCATS NIH HHS TL1 TR001437NIDDK NIH HHS K23 DK113119
6 · The paper itself

Abstract

introductionPatients on hemodialysis (HD) have a significant burden of cognitive impairment. Characterizing the cerebral structural changes in HD patients compared to healthy controls and evaluating the relationship of cerebral structural integrity with cognitive performance in HD patients can help clarify the pathophysiology of the cognitive impairment in HD patients.

methodsIn this cross-sectional study, in-center HD patients ≥50 years of age underwent brain structural and diffusion MRIs and cognitive assessment using the NIH Toolbox cognition battery. The cerebral imaging measures of the HD participants were compared to imaging from age-matched controls. Gray matter volume, white matter volume, and white matter integrity determined by diffusion tensor imaging parameters (including fractional anisotropy [FA]) were measured in both cohorts to determine differences in the cerebral structure between HD participants and healthy controls. The association between cognitive performance on the NIH Toolbox cognition battery and cerebral structural integrity was evaluated using multiple linear regression models.

resultsWe compared imaging measures form 23 HD participants and 15 age-matched controls. The HD participants had decreased gray matter volumes (526.8 vs. 589.5 cm3, p < 0.01) and worsened white matter integrity overall (FA values of 0.2864 vs. 0.3441, p < 0.01) within major white matter tracts compared to healthy controls. Decreases in white matter integrity in the left superior longitudinal fasciculus was associated with lower executive function scores (r2 = 0.24, p = 0.02) and inferior longitudinal fasciculus with lower memory scores (r = 0.25 and p = 0.03 for left and r2 = 0.21 and p = 0.03 for right).

conclusionsHD patients have a pattern of decreased white matter integrity and gray matter atrophy compared to controls. Decreases in white matter integrity were associated with decreased cognitive performance in the HD population.

Indexed as

CognitionRenal DialysisAgedCase-Control StudiesCohort StudiesFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedWhite MatterCognitionGray matter volumeHemodialysisWhite matter integrity

Identifiers

PMID33049742
PMCPMC7785532
OpenAlexW3092330150

What OpenQuestion holds

Textmetadata
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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.