Evidence map›Paper›PMID 33789937›Full record

ArticleJournal of nuclear medicine : official publication, Society of Nuclear Medicine2021

Slow but Evident Recovery from Neocortical Dysfunction and Cognitive Impairment in a Series of Chronic COVID-19 Patients.

Ganna Blazhenets, Nils Schroeter, Tobias Bormann, Johannes Thurow, Dirk Wagner, Lars Frings, Cornelius Weiller, Philipp T Meyer, Andrea Dressing, Jonas A Hosp

Abstract read
In one paragraph

Article in Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 6 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

98 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Molecular Imaging Findings on Acute and Long-Term Effects of COVID-19 on the Brain: A Systematic Review.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2022
    Pooled it
  5. COVID-19 associated cognitive impairment: A systematic review.Cortex; a journal devoted to the study of the nervous system and behavior · 2022
    Pooled it
  6. Guideline
  7. Trial
  8. Decline in dementia patients during the COVID-19 pandemic: A cohort study in Taiwan.Journal of the Chinese Medical Association : JCMA · 2026
    Article
  9. Article
  10. Article
  11. Cognitive Function 1 Year After COVID Infection.Open forum infectious diseases · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. BrainEuropean journal of nuclear medicine and molecular imaging · 2025
    Article
  16. Article
  17. Long-COVID and postural orthostatic tachycardia syndrome: a preliminary comparison of neuropsychological performance.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2025
    Article
  18. Article
  19. Review
  20. Article

38 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

10 authors.

Ganna BlazhenetsDepartment of Nuclear Medicine, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany; ganna.blazhenets@uniklinik-freiburg.de.
Nils SchroeterDepartment of Neurology and Clinical Neuroscience, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany.
Tobias BormannDepartment of Neurology and Clinical Neuroscience, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany.
Johannes ThurowDepartment of Nuclear Medicine, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany.
Dirk WagnerDepartment of Internal Medicine, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany; and.
Lars FringsDepartment of Nuclear Medicine, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany.
Cornelius WeillerDepartment of Neurology and Clinical Neuroscience, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany.
Philipp T MeyerDepartment of Nuclear Medicine, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany.
Andrea DressingDepartment of Neurology and Clinical Neuroscience, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany.
Jonas A HospDepartment of Neurology and Clinical Neuroscience, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cognitive impairment is a frequent complaint in coronavirus disease 2019 (COVID-19) and can be related to cortical hypometabolism on

Indexed as

Recovery of FunctionAdultAgedChronic DiseaseCognitive DysfunctionCOVID-19FemaleFluorodeoxyglucose F18Follow-Up StudiesHumansMaleMiddle AgedNeocortexPositron Emission Tomography Computed TomographyFluorodeoxyglucose F1818F-FDG PETcognitionCOVID-19Montreal Cognitive Assessmentneurology

Identifiers

PMID33789937
PMCPMC8882885

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.