When viewing this topic in a different language, you may notice some differences in the way the content is structured, but it still reflects the latest evidence-based guidance.

Paralisia de Bell

Последний просмотренный: 13 Sep 2025
Last updated: 01 Oct 2024

Резюме

Определение

History and exam

Key diagnostic factors

  • episódio único
  • unilateral
  • ausência de sintomas constitucionais
  • envolvimento de todos os ramos do nervo
  • ceratoconjuntivite seca
  • dor
  • sincinesia
Full details

Other diagnostic factors

  • presença de fatores de risco
  • qualquer idade
  • hiperacusia
  • disgeusia
Full details

Risk factors

  • vacinação intranasal contra a gripe (influenza)
  • gestação
  • infecção do trato respiratório superior
  • clima árido/frio
  • hipertensão
  • história familiar de paralisia de Bell
  • diabetes
  • procedimentos odontológicos
Full details

Diagnostic investigations

1st investigations to order

  • diagnóstico clínico
  • eletroneuronografia (ENoG) (eletromiografia evocada – eEMG)
  • eletromiografia com agulha
  • Sorologia para Borrelia burgdorferi
Full details

Investigations to consider

  • audiometria de tons puros
  • timpanometria e reflexo estapediano
  • ressonância nuclear magnética (corte fino com realce de gadolínio do curso do nervo facial)
  • tomografia computadorizada (corte fino, sem contraste)
Full details

Treatment algorithm

ACUTE

todos os pacientes

Contributors

Authors

Matthew Q. Miller, MD

Assistant Professor Otolaryngology-Head and Neck Surgery

Director UNC Facial Nerve Center

University of North Carolina-Chapel Hill

Chapel Hill

NC

Disclosures

MQM is a paid consultant for Checkpoint Surgical, Inc.

Liliana Ein, MD

Assistant Professor Otolaryngology-Head and Neck Surgery

Division of Facial Plastic and Reconstructive Surgery

University of Miami

Miami

FL

Disclosures

LE declares that she has no competing interests.

Acknowledgements

Dr Matthew Q. Miller and Dr Liliana Ein would like to gratefully acknowledge Dr Tessa Hadlock, Dr Nathan Jowett, Dr Vishnu Madhok, Dr Iain Swan, Dr Pauline Lockhart, Dr Michael Norbury, and Dr John Gail Neely, previous contributors to this topic.

Disclosures

TH, VM, IS, PL, MN, and JGN declare that they have no competing interests. NJ holds a patent on the methods and systems for functional electrical stimulation of the paralysed face (WO2017124019A1).

Peer reviewers

Giles Elrington, MBBS (Hons), MD, FRCP

Consultant Neurologist

Barts Health NHS Trust

London

UK

Disclosures

GE is involved in a number of clinical trials on multiple sclerosis sponsored by Genzyme, Roche, Teva, Novartis, Biogen, as well as one funded by the MRC. He is also involved in clinical trials sponsored by Allergan, NMT Medical, GlaxoSmithKline (GSK), Bristol-Myers, the UK's Parkinson's Disease Research Group, and Pharmacia. In addition, he has attended lectures, conferences and symposia with the following companies - GSK, AstraZeneca, MSD, Almirall, Pfizer, Menarini, Allergan, Biogen, Teva, Conference Plus, Infomed, and BMJ.

Patrick Grogan, MD

Major

US Air Force

MC Program Director

Department of Neurology

MMCN

Wilford Hall Medical Center

Lackland Air Force Base

TX

Disclosures

PG declares that he has no competing interests.

Venkat Srinivasan, MBBS, DLO, FRCS (Ed), FRCS (ORL)

Consultant in ENT/Thyroid Surgery

Arrowe Park Hospital

Upton

Wirral

UK

Disclosures

VS declares that he has no competing interests.

Peer reviewer acknowledgements

BMJ Best Practice topics are updated on a rolling basis in line with developments in evidence and guidance. The peer reviewers listed here have reviewed the content at least once during the history of the topic.

Disclosures

Peer reviewer affiliations and disclosures pertain to the time of the review.

References

Our in-house evidence and editorial teams collaborate with international expert contributors and peer reviewers to ensure that we provide access to the most clinically relevant information possible.

Key articles

Gronseth GS, Paduga R; American Academy of Neurology. Evidence-based guideline update: steroids and antivirals for Bell palsy. Neurology. 2012 (reaffirmed 2023) Nov 27;79(22):2209-13.Full text  Abstract

Madhok VB, Gagyor I, Daly F, et al. Corticosteroids for Bell's palsy (idiopathic facial paralysis). Cochrane Database Syst Rev. 2016;(7):CD001942.Full text  Abstract

Gagyor I, Madhok VB, Daly F, et al. Antiviral treatment for Bell's palsy (idiopathic facial paralysis). Cochrane Database Syst Rev. 2019 Sep 5;9:CD001869.Full text  Abstract

Gantz BJ, Rubinstein JT, Gidley P, et al. Surgical management of Bell palsy. Laryngoscope. 1999 Aug;109(8):1177-88. Abstract

Baugh RF, Basura GJ, Ishii LE, et al. Clinical practice guideline: Bell's palsy. Otolaryngol Head Neck Surg. 2013 Nov;149(3 Suppl):S1-27.Full text  Abstract

Reference articles

A full list of sources referenced in this topic is available to users with access to all of BMJ Best Practice.
  • Differentials

    • Herpes-zóster ótica (síndrome de Ramsay Hunt)
    • Doença de Lyme
    • Tumor benigno do nervo facial (por exemplo, schwannoma do nervo facial)
    More Differentials
  • Guidelines

    • ACR appropriateness criteria: cranial neuropathy
    • Management of acute Bell's palsy
    More Guidelines
  • Patient information

    Paralisia de Bell

    More Patient information
  • padlock-lockedLog in or subscribe to access all of BMJ Best Practice

Use of this content is subject to our disclaimer