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Síndrome de Guillain-Barré

Evidence last reviewed: 23 Feb 2026
Topic last updated: 13 Jan 2026

Summary

Definition

History and exam

Key diagnostic factors

  • presencia de factores de riesgo
  • debilidad muscular
  • parestesia
  • dolor de espalda/pierna
  • dificultad respiratoria
  • dificultad del habla
  • arreflexia/hiporreflexia
  • debilidad facial
  • disfunción bulbar que causa debilidad orofaríngea
  • debilidad muscular extraocular
  • parálisis facial
  • diplopía
  • disartría
  • disfagia
  • disautonomía
  • disfunción pupilar
  • oftalmoplejía
Full details

Other diagnostic factors

  • ataxia
  • ptosis
  • nivel de alteración de la consciencia
Full details

Risk factors

  • enfermedad viral previa
  • infección bacteriana anterior
  • infección vírica anterior transmitida por artrópodos
  • infección por hepatitis E
  • inmunización
  • cáncer y linfoma
  • inmunoterapia con inhibidor de puntos de control inmunitarios o receptor de antígenos quiméricos (CAR) para células T
  • edad avanzada
  • Infección por VIH
  • Infección por COVID-19
  • sexo masculino
Full details

Diagnostic tests

1st tests to order

  • estudios de conducción nerviosa
  • punción lumbar
  • pruebas de función hepática (PFH)
  • espirometría
Full details

Tests to consider

  • anticuerpo antigangliósido
  • serología
  • coprocultivo
  • anticuerpos del VIH
  • resonancia magnética (IRM) espinal
  • estudios por imágenes de ecografía de los nervios periféricos
  • serología de Borrelia burgdorferi
  • Reacción en cadena de la polimerasa meningocócica del líquido cefalorraquídeo (LCR)
  • citología de líquido cefalorraquídeo (LCR)
  • La enzima convertidora de angiotensina del LCR
  • radiografía de tórax
  • prueba de laboratorio de investigación de enfermedades venéreas (VDRL) en el líquido cefalorraquídeo (LCR)
  • Reacción en cadena de la polimerasa del Nilo Occidental en LCR
Full details

Treatment algorithm

ACUTE

debilidad bulbar no ambulatoria o severa o inestabilidad autonómica dentro de las 4 semanas posteriores al inicio; o ambulatorio con enfermedad leve dentro de las 2 semanas siguientes al inicio

Contributors

Authors

Saiju Jacob, MD, DPhil, MRCP (UK), FRCP (Lon), FAAN

Consultant Neurologist

Queen Elizabeth Neurosciences Centre

University Hospital Birmingham

Birmingham

UK

Disclosures

SJ has served as a paid international advisory board member or invited speaker for Alexion, Alnylam, ArgenX, Immunovant, Janssen, Merck, Novartis, Regeneron and UCB pharmaceuticals, is currently an expert panel member of the Myasthenia Gravis Consortium for Argenx pharmaceuticals. He has received speaker’s fees from Terumo BCT and Eisai pharmaceuticals. SJ declares that none of these are relevant to the current article.

Roshan Iqbal, MD, DM, MRCP (UK)

Neurology Specialist Registrar

Queen Elizabeth Neurosciences Centre

University Hospital Birmingham

Birmingham

UK

Disclosures

RI declares that he has no competing interests.

Acknowledgements

Prof Saiju Jacob would like to gratefully acknowledge Prof John B. Winer, Dr Michael T. Torbey, Dr Dhruvil J. Pandya, and Dr Prem A. Kandiah, previous contributors to this topic.

Disclosures

JBW, MTT, DJP, and PAK declare that they have no competing interests.

Peer reviewers

Long Davalos Loo, MD

Assistant Professor of Neurology

University of Cincinnati

Cincinnati

OH

Disclosures

LDL declares that he has no competing interests.

Robert Hadden, FRCP, PhD

Consultant Neurologist

King's College Hospital

London

UK

Disclosures

RH has been paid by Baxter Healthcare Ltd for membership of its neurology advisory board, and is a co-author of several studies referenced in this topic.

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

van Doorn PA, Van den Bergh PYK, Hadden RDM, et al. European Academy of Neurology/Peripheral Nerve Society guideline on diagnosis and treatment of Guillain-Barré syndrome. Eur J Neurol. 2023 Dec;30(12):3646-74.Full text  Abstract

Leonhard SE, Mandarakas MR, Gondim FAA, et al. Diagnosis and management of Guillain-Barré syndrome in ten steps. Nat Rev Neurol. 2019 Nov;15(11):671-83.Full text  Abstract

Hughes RA, Swan AV, van Doorn PA. Intravenous immunoglobulin for Guillain-Barré syndrome. Cochrane Database Syst Rev. 2014 Sep 19;(9):CD002063.Full text  Abstract

Hughes RA, Wijdicks EF, Barohn R, et al. Practice parameter: immunotherapy for Guillain-Barré syndrome: report of the Quality Standards Subcommittee of the American Academy of Neurology. Neurology. 2003 Sep 23;61(6):736-40.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.
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