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.

West Nile virus

Última revisão: 19 Mar 2025
Última atualização: 07 Jan 2025

Resumo

Definição

História e exame físico

Principais fatores diagnósticos

  • fever of sudden onset
  • malaise
  • myalgia
  • arthralgia
  • pharyngitis
  • anorexia
  • abdominal pain
  • visual disturbances
  • headache
  • rash
  • lymphadenopathy
  • conjunctival injection
  • multifocal chorioretinal lesions
  • chorioretinitis and inflammatory vitritis
  • seizures
  • respiratory distress
  • jaundice
  • epigastric tenderness
  • mild confusion
  • disorientation
  • stupor/coma
  • neck stiffness
  • Kernig sign
  • Brudzinski sign
  • muscle paralysis
  • parkinsonism
  • ataxia
  • myoclonus
  • tremors
Detalhes completos

Outros fatores diagnósticos

  • nausea/vomiting
  • generalized muscle weakness
  • splenomegaly
  • retinal hemorrhages
  • chest pain, dyspnea, palpitations
  • photophobia
  • depression
  • loss of memory
  • bowel and bladder dysfunction
  • cranial nerve palsies
Detalhes completos

Fatores de risco

  • living in/visiting areas with high West Nile virus activity
  • mosquito bites
  • blood transfusion
  • organ transplant
  • needlestick injuries
Detalhes completos

Investigações diagnósticas

Primeiras investigações a serem solicitadas

  • serology
  • plaque reduction neutralization test
  • cerebrospinal fluid (CSF) analysis
  • complete blood count
  • serum electrolytes
  • liver function tests
  • serum amylase/lipase
Detalhes completos

Investigações a serem consideradas

  • MRI brain
  • CT head
  • reverse transcriptase-polymerase chain reaction (RT-PCR)
Detalhes completos

Algoritmo de tratamento

AGUDA

West Nile fever

West Nile neuroinvasive disease

Colaboradores

Autores

Bruce Y. Lee, MD, MBA
Bruce Y. Lee

Professor of Health Policy and Management

Executive Director

Center for Advanced Technology and Communication for Health (CATCH)

Public Health Informatics Computational and Operation Research (PHICOR)

City University of New York (CUNY)

New York

NY

Declarações

BYL declares that he has no competing interests.

Revisores

Susan Stramer, PhD

Executive Scientific Officer

American Red Cross

Gaithersburg

MD

Declarações

SS declares that she has no competing interests.

  • Diagnósticos diferenciais

    • Herpes simplex encephalitis
    • St. Louis encephalitis
    • Eastern equine encephalitis
    Mais Diagnósticos diferenciais
  • Diretrizes

    • Guidelines for West Nile virus surveillance and control
    • Treatment and prevention of West Nile virus disease
    Mais Diretrizes
  • padlock-lockedConectar-se ou assinar para acessar todo o BMJ Best Practice

O uso deste conteúdo está sujeito ao nosso aviso legal