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Doença de Huntington

Last reviewed: 13 Feb 2025
Last updated: 22 Nov 2022

Summary

Definition

History and exam

Key diagnostic factors

  • história familiar de doença de Huntington positiva
  • expansão conhecida da extensão da repetição de citosina-adenina-guanina (CAG) no fim da região N-terminal do gene da huntingtina
  • desempenho comprometido no trabalho ou na escola
  • alteração de personalidade
  • irritabilidade e impulsividade
  • coreia
  • espasmos ou agitação
  • perda de coordenação
  • deficit da coordenação motora fina
  • lentidão no movimento ocular rápido (movimento sacádico)
  • impersistência motora
  • marcha em tandem comprometida
Full details

Other diagnostic factors

  • comprometimento da concentração/ansiedade ou apatia na realização de tarefas
  • declínio cognitivo em relação ao cônjuge/irmãos
  • alterações dos hábitos pessoais/higiene
  • desinibição ou comportamento ansioso incomum
  • depressão, obsessões e compulsões
Full details

Risk factors

  • expansão da extensão da repetição de citosina-adenina-guanina (CAG) no fim da região N-terminal do gene da huntingtina
  • outros fatores genéticos
  • história familiar
Full details

Diagnostic investigations

1st investigations to order

  • nenhum teste inicial
Full details

Investigations to consider

  • teste de repetição de citosina-adenina-guanina (CAG)
  • ressonância nuclear magnética (RNM) ou tomografia computadorizada (TC)
Full details

Treatment algorithm

ONGOING

todos os pacientes

Contributors

Authors

Mitsuko Nakajima MD, MD

Clinical Research Fellow

Huntington's Disease Centre

Queen Square Institute of Neurology

Department of Neurodegenerative Disease

Russell Square House

London

UK

Disclosures

MN declares no competing interests.

Acknowledgements

Dr Mitsuko Nakajima would like to gratefully acknowledge Dr Peter McColgan, Dr Sarah Tabrizi, Dr David Craufurd, Dr Marianne Novak, and Dr Francis Walker, previous contributors to this topic.

Disclosures

FW declared that he had no competing interests. MN is an author of a reference cited in this topic. DC has received fees for advisory board membership from Hoffmann-La Roche Ltd. SJT has received grant funding for her research from CHDI Foundation, the BBSRC, Dementia and Neurodegenerative Disease Network UK, European Huntington’s Disease Network, Huntington’s Disease Association of the UK, the Medical Research Council UK, Takeda Pharmaceuticals, the UCL/UCLH Biomedical Research Centre, and the Wellcome Trust. SJT has been on advisory boards or had consultancies with F. Hoffmann-La Roche Ltd, Ixico Technologies, Shire Human Genetic Therapies, Takeda Pharmaceuticals International, and TEVA Pharmaceuticals; all honoraria for these consultancies and advisory boards were paid to UCL. Through the offices of UCL Consultants Ltd, a wholly owned subsidiary of UCL, SJT has undertaken consultancy services for F. Hoffmann-La Roche Ltd and GSK. ST is also an author of references cited in this topic PM declared that he had no competing interests.

Peer reviewers

Adrian Priesol, MD, FRCPC

Instructor

Massachusetts Eye and Ear Infirmary

Harvard Medical School

Boston

MA

Disclosures

AP declares that he has no competing interests.

Tiago Mestre, MD, MSc

Resident Neurology

Neurological Clinical Research Unit

Institute of Molecular Medicine

Lisbon

Portugal

Disclosures

TM declares that he has no competing interests.

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