Evidence map›Paper›PMID 33421278›Full record

ArticleEuropean journal of neurology2021

Myasthenia gravis associated with anti-MuSK antibodies developed after SARS-CoV-2 infection.

Andrea Assini, Ilaria Gandoglia, Valentina Damato, Klaudio Rikani, Amelia Evoli, Massimo Del Sette

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in European journal of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 2 pooled it
5.6field-weighted citation impact, top 3% 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

38 citing papers in PubMed, 2 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Neurologic and Neuromuscular Sequelae of COVID-19.Physical medicine and rehabilitation clinics of North America · 2023
    Review
  18. Autoimmune myasthenia gravis and COVID-19. A case report-based review.The Journal of international medical research · 2023
    Review
  19. Article
  20. EpitranscriptomicMicrobiology spectrum · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Andrea AssiniNeurology Unit, Galliera Hospital, Genoa, Italy.
Ilaria GandogliaNeurology Unit, Galliera Hospital, Genoa, Italy.ORCID https://orcid.org/0000-0003-4429-914X
Valentina DamatoInstitute of Neurology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy.
Klaudio RikaniNeurology Unit, Galliera Hospital, Genoa, Italy.
Amelia EvoliInstitute of Neurology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy.
Massimo Del SetteNeurology Unit, Galliera Hospital, Genoa, Italy.
Ente Ospedaliero Ospedali Galliera · ITUniversità Cattolica del Sacro Cuore · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSince the onset of the novel coronavirus pandemic, several neurological complications secondary to SARS-CoV-2 infection have been reported, affecting central nervous system, peripheral nervous system and neuromuscular junction. CASE REPORT: We present the case of a 77-year-old man who developed bulbar myasthenia gravis (MG) eight weeks after SARS-CoV-2 infection. The search for serum antibodies against the acetylcholine receptor and the muscle-specific tyrosine kinase (MuSK), performed by radioimmunoassay (RIA), and the search of low-density lipoprotein receptor-related protein 4 antibodies, performed by immunohistochemistry, resulted negative, while anti-MuSK antibodies were detected by cell-based assay (CBA). The patient was treated with pyridostigmine (60 mg four times a day) with unsatisfactory clinical response, followed by immunosuppressive therapy (azathioprine 1.5 mg/kg/day) with improvement of MG symptoms after two months of treatment. DISCUSSION: Several viral diseases have been described as associated with the onset of MG, although the underlying mechanisms are not yet fully understood. Similarly, a growing number of scientific reports suggest a correlation between SARS-CoV-2 infection and autoimmune diseases. The interest of our case lies in the timing of the MG onset (after 2 months from infection), together with the unusual late onset of anti-MuSK MG. These elements suggest that coronavirus infection may act as a trigger of the disease. We confirm the importance of CBA in the serological diagnosis of RIA-negative MG.

Indexed as

COVID-19Myasthenia GravisAgedAutoantibodiesHumansMaleReceptors, CholinergicSARS-CoV-2TyrosineAutoantibodiesReceptors, CholinergicTyrosineanti-MuSK antibodiescell-based assaymyasthenia gravisSARS-CoV-2

Identifiers

PMID33421278
PMCPMC8014563
OpenAlexW3121120422

What OpenQuestion holds

Textmetadata
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.