Evidence map›Paper›PMID 38862619›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2024

Persistent brain metabolic impairment in long COVID patients with persistent clinical symptoms: a nine-month follow-up [

Tatiana Horowitz, Pierre Dudouet, Jacques-Yves Campion, Elsa Kaphan, Thomas Radulesco, Sandra Gonzalez, Serge Cammilleri, Amélie Ménard, Eric Guedj

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In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Neuroimmune pathophysiology of long COVID.Psychiatry and clinical neurosciences · 2025
    Review
  6. Article
  7. Article
  8. BrainEuropean journal of nuclear medicine and molecular imaging · 2025
    Article
  9. Review
  10. Article
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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

9 authors.

Tatiana HorowitzAPHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, Nuclear Medicine Department, Aix-Marseille University, 264 rue Saint-Pierre, Marseille, 13005, France.
Pierre DudouetIHU Méditerranée Infection, APHM, Marseille, France.
Jacques-Yves CampionCHU Tours, Tours, France, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, Nuclear Medicine Department, Aix-Marseille University, Marseille, France.
Elsa KaphanAPHM, Service de Médecine interne, Conception Hospital, Marseille, France.
Thomas RadulescoDepartment of Oto-Rhino- Laryngology, Aix-Marseille University, APHM, IUSTI, Conception Hospital, Marseille, France.
Sandra GonzalezAPHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, Nuclear Medicine Department, Aix-Marseille University, 264 rue Saint-Pierre, Marseille, 13005, France.
Serge CammilleriAPHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, Nuclear Medicine Department, Aix-Marseille University, 264 rue Saint-Pierre, Marseille, 13005, France.
Amélie MénardIHU Méditerranée Infection, APHM, Marseille, France.
Eric GuedjAPHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, Nuclear Medicine Department, Aix-Marseille University, 264 rue Saint-Pierre, Marseille, 13005, France. eric.guedj@ap-hm.fr.ORCID 0000-0003-1912-6132

Funding

PHRC 2007/09
6 · The paper itself

Abstract

purposeA hypometabolic profile involving the limbic areas, brainstem and cerebellum has been identified in long COVID patients using [

methodsFifty-six adults with long COVID who underwent two brain [

resultsPET1 and PET2 revealed voxel-based hypometabolisms consistent with the previously reported profile in the literature. This between-group analysis comparing PET1 and PET2 showed minor improvements in the pons and cerebellum (8.4 and 5.2%, respectively, only significant under the less constrained uncorrected p-threshold); for the pons, this improvement was correlated with the PET1-PET2 interval (r = 0.21, p < 0.05). Of the 14,068 hypometabolic voxels identified on PET1, 6,503 were also hypometabolic on PET2 (46%). Of the 7,732 hypometabolic voxels identified on PET2, 6,094 were also hypometabolic on PET1 (78%). The anatomical ROI analysis confirmed the brain hypometabolism involving limbic region, the pons and cerebellum at PET1 and PET2, without significant changes between PET1 and PET2.

conclusionSubjects with persistent symptoms of long COVID exhibit durable deficits in brain metabolism, without progressive worsening.

Indexed as

BrainCOVID-19Fluorodeoxyglucose F18Positron-Emission TomographyAdultAgedFemaleFollow-Up StudiesHumansMaleMiddle AgedRadiopharmaceuticalsRetrospective StudiesFluorodeoxyglucose F18RadiopharmaceuticalsBrain PETCOVID-19FDG-PETLong COVIDPASCpost-COVID condition

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Registered trials

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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.