Evidence map›Paper›PMID 33959278›Full record

ReviewTherapeutic advances in infectious disease

COVID-19 and post-infectious myalgic encephalomyelitis/chronic fatigue syndrome: a narrative review.

Sonia Poenaru, Sara J Abdallah, Vicente Corrales-Medina, Juthaporn Cowan

Registry-linked trialOpen access · goldAbstract readReview
In one paragraph

Review in Therapeutic advances in infectious disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05841498 (A Single-blinded Sham-controlled Crossover Trial to Evaluate the Effect of Immunoadsorption on Post-Corona Virus Disease), which is not on this map. Cited by 109 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
109citing papers in PubMed, 4 pooled it
22.0field-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.

NCT05841498 nacompletednot on this map

A Single-blinded Sham-controlled Crossover Trial to Evaluate the Effect of Immunoadsorption on Post-Corona Virus Disease (COVID)-Syndrome

TypeinterventionalSponsorUniversity Medical Center MainzRan2023 to 2025Enrolled40ConditionsPost-COVID-19 Syndrome, Post-COVID Syndrome, Post COVID-19 ConditionArmsImmunoadsorption, Sham-apheresis
3 · Its place in the literature

Who cites it

109 citing papers in PubMed, 4 syntheses or guidelines pooled it, 172 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Guideline
  5. Trial
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Virtual Pet-Assisted Therapy to Alleviate Symptoms of Long COVID: A Prospective Pilot Interventional Study.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Article
  13. Review
  14. Article
  15. Article
  16. Observational
  17. Article
  18. Article
  19. Article
  20. Article

49 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

4 authors at 2 institutions in 1 country.

Sonia PoenaruDepartment of Medicine, The Ottawa Hospital, General Campus, 501 Smyth Road, Box 206, Ottawa, Ontario, K1H 8L6, Canada.
Sara J AbdallahClinical Epidemiology Program, The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
Vicente Corrales-MedinaClinical Epidemiology Program, The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
Juthaporn CowanClinical Epidemiology Program, The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.ORCID https://orcid.org/0000-0001-6648-5109
Ottawa Hospital · CAUniversity of Ottawa · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coronavirus disease 2019 (COVID-19) is a viral infection which can cause a variety of respiratory, gastrointestinal, and vascular symptoms. The acute illness phase generally lasts no more than 2-3 weeks. However, there is increasing evidence that a proportion of COVID-19 patients experience a prolonged convalescence and continue to have symptoms lasting several months after the initial infection. A variety of chronic symptoms have been reported including fatigue, dyspnea, myalgia, exercise intolerance, sleep disturbances, difficulty concentrating, anxiety, fever, headache, malaise, and vertigo. These symptoms are similar to those seen in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), a chronic multi-system illness characterized by profound fatigue, sleep disturbances, neurocognitive changes, orthostatic intolerance, and post-exertional malaise. ME/CFS symptoms are exacerbated by exercise or stress and occur in the absence of any significant clinical or laboratory findings. The pathology of ME/CFS is not known: it is thought to be multifactorial, resulting from the dysregulation of multiple systems in response to a particular trigger. Although not exclusively considered a post-infectious entity, ME/CFS has been associated with several infectious agents including Epstein-Barr Virus, Q fever, influenza, and other coronaviruses. There are important similarities between post-acute COVID-19 symptoms and ME/CFS. However, there is currently insufficient evidence to establish COVID-19 as an infectious trigger for ME/CFS. Further research is required to determine the natural history of this condition, as well as to define risk factors, prevalence, and possible interventional strategies.

Indexed as

chronic fatigue syndromeCOVID-19human coronavirusmyalgic encephalomyelitispost-infectious fatiguereview

Identifiers

PMID33959278
PMCPMC8060761
OpenAlexW3154413300

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.