Evidence map›Paper›PMID 30923934›Full record

ReviewJournal of neurology2020

The etiology of Bell's palsy: a review.

Wenjuan Zhang, Lei Xu, Tingting Luo, Feng Wu, Bin Zhao, Xianqi Li

Open access · hybridAbstract readReview
In one paragraph

Review in Journal of neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 146 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
146citing papers in PubMed, 7 pooled it
20.0field-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.

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

146 citing papers in PubMed, 7 syntheses or guidelines pooled it, 312 citations in OpenAlex.

  1. Pooled it
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  7. Facial Nerve Palsy Amid the SARS-CoV-2 Pandemic: A Pooled Analysis.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale
    Pooled it
  8. Trial
  9. Trial
  10. Is Bell's palsy a bilateral condition? A temporal magnetic resonance image analysis of contrast enhancement across all segments of the facial nerve.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Article
  11. Manual Lymph Drainage Vodder (MLDV) Increases Facial Function in Bell's Palsy Patients.International journal of therapeutic massage & bodywork · 2026
    Article
  12. Association between dietary inflammatory index and Bell's palsy: a retrospective case-control study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Article
  13. Article
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  16. Procedural-Based Contemporary Management of Bell's Palsy Long-Term Sequelae: A Narrative Review.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2026
    Review
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  20. Article

86 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

6 authors at 3 institutions in 2 countries.

Wenjuan ZhangShanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001, China.
Lei XuShanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001, China.
Tingting LuoThe State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
Feng WuShanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001, China.
Bin ZhaoShanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001, China. 18636666068@163.com.
Xianqi LiShanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001, China. xianqi.li@mdu.ac.jp.
Shanxi Medical University · CNMatsumoto Dental University · JPWuhan University · CN

Funding

the Hundred People Plan 057708
6 · The paper itself

Abstract

Bell's palsy is the most common condition involving a rapid and unilateral onset of peripheral paresis/paralysis of the seventh cranial nerve. It affects 11.5-53.3 per 100,000 individuals a year across different populations. Bell's palsy is a health issue causing concern and has an extremely negative effect on both patients and their families. Therefore, diagnosis and prompt cause determination are key for early treatment. However, the etiology of Bell's palsy is unclear, and this affects its treatment. Thus, it is critical to determine the causes of Bell's palsy so that targeted treatment approaches can be developed and employed. This article reviews the literature on the diagnosis of Bell's palsy and examines possible etiologies of the disorder. It also suggests that the diagnosis of idiopathic facial palsy is based on exclusion and is most often made based on five factors including anatomical structure, viral infection, ischemia, inflammation, and cold stimulation responsivity.

Indexed as

Bell PalsyCold TemperatureHumansInflammationIschemiaTemporal BoneVirus DiseasesAnatomical structureBell’s palsyCold stimulationInflammationIschemiaViral infection

Identifiers

PMID30923934
PMCPMC7320932
OpenAlexW2933033398

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.