Evidence map›Paper›PMID 34392827›Full record

SynthesisBosnian journal of basic medical sciences2022

COVID-19 associated cranial nerve neuropathy: A systematic review.

Josef Finsterer, Fulvio Alexandre Scorza, Carla Scorza, Ana Fiorini

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Bosnian journal of basic medical sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 1 pooled it
8.2field-weighted citation impact, top 2% 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

52 citing papers in PubMed, 1 synthesis or guideline pooled it, 83 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Postinfectious polyneuritis cranialis: A case report.The Journal of international medical research · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Glossopharyngeal neuralgia after SARS-CoV-2 infection: A case report.Journal of clinical and experimental dentistry · 2025
    Review
  11. Double-seropositive Myasthenia Gravis Following COVID-19.Internal medicine (Tokyo, Japan) · 2025
    Article
  12. COVID-19-Related Diplopia and Its Treatment.Medicina (Kaunas, Lithuania) · 2025
    Review
  13. Article
  14. Article
  15. [Radiological clinical profile of multiple cranial neuropathy and recurrence risk factors].Revista medica del Instituto Mexicano del Seguro Social · 2024
    Observational
  16. Isolated Sixth Nerve Palsy and COVID-19: A Recurrent Case in a 7-Month-Old Child and Analysis of Reported Cases.Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society · 2024
    Review
  17. Review
  18. Article
  19. Review
  20. Article
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 2 countries.

Josef FinstererKlinik Landstrasse, Messerli Institute, Vienna, Austria.
Fulvio Alexandre ScorzaDisciplina de Neurociência. Universidade Federal de São Paulo/Escola Paulista de Medicina (UNIFESP/EPM). São Paulo, Brasil.
Carla ScorzaDisciplina de Neurociência. Universidade Federal de São Paulo/Escola Paulista de Medicina (UNIFESP/EPM). São Paulo, Brasil.
Ana FioriniPrograma de Estudos Pós-Graduado em Fonoaudiologia, Pontifícia Universidade Católica de São Paulo (PUC-SP), Brazil; Departamento de Fonoaudiologia, Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, Brazil.
Universidade Federal de São Paulo · BRAustrian Competence Centre of Food Safety · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The involvement of cranial nerves is being increasingly recognised in COVID-19. This review aims to summarize and discuss the recent advances concerning the clinical presentation, pathophysiology, diagnosis, treatment, and outcomes of SARS-CoV-2 associated cranial nerve mononeuropathies or polyneuropathies. Therefore, a systematic review of articles from PubMed and Google Scholar was conducted. Altogether 36 articles regarding SARS-CoV-2 associated neuropathy of cranial nerves describing 56 patients were retrieved. Out of these 56 patients, cranial nerves were compromised without the involvement of peripheral nerves in 32 of the patients, while Guillain-Barre syndrome (GBS) with cranial nerve involvement was described in 24 patients. A single cranial nerve was involved either unilaterally or bilaterally in 36 patients, while in 19 patients multiple cranial nerves were involved. Bilateral involvement was more prevalent in the GBS group (n=11) as compared to the cohort with isolated cranial nerve involvement (n=5). Treatment of cranial nerve neuropathy included steroids (n=18), intravenous immunoglobulins (IVIG) (n=18), acyclovir/valacyclovir (n=3), and plasma exchange (n=1). The outcome was classified as "complete recovery" in 21 patients and as "partial recovery" in 30 patients. One patient had a lethal outcome. In conclusion, any cranial nerve can be involved in COVID-19, but cranial nerves VII, VI, and III are the most frequently affected. The involvement of cranial nerves in COVID-19 may or may not be associated with GBS. In patients with cranial nerve involvement, COVID-19 infections are usually mild. Isolated cranial nerve palsy without GBS usually responds favorably to steroids. Cranial nerve involvement with GBS benefits from IVIG.

Indexed as

COVID-19Cranial Nerve DiseasesGuillain-Barre SyndromeCranial NervesHumansSARS-CoV-2

Identifiers

PMID34392827
PMCPMC8860318
OpenAlexW3188694769

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.