Accidente isquémico transitorio

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Última revisão: 18 Jan 2026
Última atualização: 01 Jul 2025

Resumo

Definição

História e exame físico

Principais fatores diagnósticos

  • inicio repentino y breve duración de los síntomas (minutos)
  • Informe del paciente/testigo del déficit neurológico focal
Detalhes completos

Outros fatores diagnósticos

  • debilidad o parálisis unilateral
  • disfasia
  • ataxia, vértigo o pérdida del equilibrio
  • pérdida repentina y transitoria de la visión en un ojo (amaurosis fugaz)
  • Hemianopsia homónima
  • diplopía
  • factores de riesgo
Detalhes completos

Fatores de risco

  • fibrilación auricular
  • enfermedad valvular
  • estenosis carotídea
  • estenosis intracraneal
  • insuficiencia cardíaca congestiva
  • hipertensión
  • hiperlipidemia
  • diabetes mellitus
  • tabaquismo
  • Trastorno por consumo de alcohol
  • edad avanzada
  • foramen oval permeable (FOP)
  • inactividad
  • obesidad
  • hipercoagulabilidad
Detalhes completos

Investigações diagnósticas

Primeiras investigações a serem solicitadas

  • glucemia
  • hemograma completo y recuento de plaquetas
  • tiempo de protrombina, INR, tiempo de tromboplastina parcial
  • lipidograma en ayunas
  • electrolitos séricos
  • electrocardiograma (ECG)
Detalhes completos

Investigações a serem consideradas

  • exploración por tomografía computarizada (TC)
Detalhes completos

Algoritmo de tratamento

Inicial

sospecha de accidente isquémico transitorio

AGUDA

accidente isquémico transitorio confirmado

Colaboradores

Consultores especialistas

Matthew Jones, MD, FRCP

Consultant Neurologist

Manchester Centre for Clinical Neurosciences

Northern Care Alliance

Honorary Senior Lecturer

University of Manchester

Manchester

UK

Declarações

MJ is the chair of the Association of British Neurologists Education Committee (unpaid position). MJ is a faculty member of a MRCP revision course and has received honoraria from Eisai for educational talks.

Rachael Power, MBChB, MRCP

Neurology Registrar

Manchester Centre for Clinical Neurosciences

Manchester

UK

Declarações

RP declares that she has no competing interests.

Agradecimentos

BMJ Best Practice would like to gratefully acknowledge the previous team of expert contributors, whose work is retained in parts of the content:

Jennifer Simpson, MD

Associate Assistant Professor

Department of Neurology

University of Colorado School of Medicine

Denver

CO

Disclosures: JS is a site investigator for the POINT trial.

Ethan Cumbler, MD

Associate Professor

Section of Hospital Medicine

Department of Internal Medicine

Division of Medicine

University of Colorado School of Medicine

Denver

CO

Disclosures: EC declares that he has no competing interests.

Revisores

Kayvan Khadjooi, MD, FRCP, PGCertMedEd

Consultant in Stroke Medicine

Addenbrooke’s Hospital

Associate Lecturer

School of Clinical Medicine

University of Cambridge

Cambridge

UK

利益声明

KK has received travel grants for conferences/speaker honoraria from Bayer, Boehringer, Daiichi-Sankyo, Pfizer, and Shire.

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.

参考文献

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.

关键文献

National Institute for Health and Care Excellence. Stroke and transient ischaemic attack in over 16s: diagnosis and initial management. Apr 2022 [internet publication].全文

Royal College of Physicians; Scottish Intercollegiate Guidelines Network; Royal College of Physicians of Ireland. National clinical guidelines for stroke for the United Kingdom and Ireland. April 2023 [internet publication].全文

参考文献

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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