Evidence map›Paper›PMID 34066007›Full record

ReviewVaccines2021

Post-COVID Syndrome: An Insight on Its Pathogenesis.

Helena C Maltezou, Androula Pavli, Athanasios Tsakris

Registry-linked trialOpen access · goldAbstract readReview
In one paragraph

Review in Vaccines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05630339 (Efficacy and Security of the Magnesium and Vitamin D Combination as Adjuvant Treatment of Post-COVID Syndrome. A Randomised Double-blind Clinical Trial), which is not on this map. Cited by 108 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed, 6 pooled it
22.2field-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.

NCT05630339 nacompletednot on this mapstarted 2022, after this paper: background citation

Efficacy and Security of the Magnesium and Vitamin D Combination as Adjuvant Treatment of Post-COVID Syndrome. A Randomised Double-blind Clinical Trial

TypeinterventionalSponsorCoordinación de Investigación en Salud, MexicoRan2022 to 2023Enrolled150ConditionsPost-COVID-19 Syndrome, Long COVID, Vitamin D Deficiency, Magnesium DeficiencyArmsMagnesium chloride, Vitamin D, Inert placebo
3 · Its place in the literature

Who cites it

108 citing papers in PubMed, 6 syntheses or guidelines pooled it, 229 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Article
  8. Cu(I)-N-Heterocyclic carbenes as potent inhibitors of SARS-CoV-2 replication.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Article
  9. Cu(I)-N-Heterocyclic carbenes as potent inhibitors of SARS-CoV-2 replication.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Article
  10. Review
  11. Article
  12. Article
  13. Observational
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Article

48 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 2 institutions in 1 country.

Helena C MaltezouDirectorate of Research, Studies and Documentation, National Public Health Organization, 11523 Athens, Greece.ORCID 0000-0003-0264-3547
Androula PavliDepartment of Travel Medicine, National Public Health Organization, 11523 Athens, Greece.
Athanasios TsakrisDepartment of Microbiology, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece.ORCID 0000-0003-0656-4715
National Public Health Organization · GRNational and Kapodistrian University of Athens · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Post-COVID syndrome is increasingly recognized as a new clinical entity in the context of SARS-CoV-2 infection. Symptoms persisting for more than three weeks after the diagnosis of COVID-19 characterize the post-COVID syndrome. Its incidence ranges from 10% to 35%, however, rates as high as 85% have been reported among patients with a history of hospitalization. Currently, there is no consensus on the classification of post-COVID syndrome. We reviewed the published information on post-COVID syndrome, putting emphasis on its pathogenesis. The pathogenesis of post-COVID syndrome is multi-factorial and more than one mechanism may be implicated in several clinical manifestations. Prolonged inflammation has a key role in its pathogenesis and may account for some neurological complications, cognitive dysfunction, and several other symptoms. A multisystem inflammatory syndrome in adults (MIS-A) of all ages has been also described recently, similarly to multisystem inflammatory syndrome in children (MIS-C). The post-infectious inflammatory pathogenetic mechanism of MIS-A is supported by the fact that its diagnosis is established through serology in up to one third of cases. Other pathogenetic mechanisms that are implicated in post-COVID syndrome include immune-mediated vascular dysfunction, thromboembolism, and nervous system dysfunction. Although the current data are indicating that the overwhelming majority of patients with post-COVID syndrome have a good prognosis, registries to actively follow them are needed in order to define the full clinical spectrum and its long-term outcome. A consensus-based classification of post-COVID syndrome is essential to guide clinical, diagnostic, and therapeutic management. Further research is also imperative to elucidate the pathogenesis of post-COVID syndrome.

Indexed as

complicationsCOVID-19inflammationlong termpathogenesispost-infectiousSARS-CoV-2

Identifiers

PMID34066007
PMCPMC8151752
OpenAlexW3160458640

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.