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Influenza A(H1N1)-associated ischemic stroke in a 9-month-old child

Raphaele Honorat1, Camille Tison, Annick Sevely

  • 1Department of Pediatric Emergency, Children Hospital, Toulouse, France.

Pediatric Emergency Care
|April 5, 2012
PubMed

Insights

Pandemic influenza A(H1N1) infection is a rare cause of ischemic stroke in infants. This case highlights the potential for severe neurological complications, emphasizing the importance of considering influenza in pediatric stroke evaluations.

Area of Science:

  • Pediatric Neurology
  • Infectious Diseases
  • Neuroscience

Background:

  • Influenza infections, particularly pandemic strains like A(H1N1), are known to cause neurological complications in children.
  • While influenza is associated with increased stroke risk in adults, its occurrence in pediatric populations, especially infants, is rare.

Observation:

  • A 9-month-old infant presented with high fever, seizures, and subsequent right arm monoplegia.
  • Brain imaging revealed an acute ischemic stroke in the left middle cerebral artery territory.
  • Polymerase chain reaction confirmed influenza A(H1N1) infection, with negative cerebrospinal fluid findings.

Findings:

  • The infant experienced a rare clinical course of pandemic influenza A(H1N1) infection leading to ischemic stroke.
  • Neurological deficits, including monoplegia, were observed following the influenza diagnosis.
  • The patient demonstrated a full recovery of motor function within days.

Implications:

  • This case underscores the potential for influenza A(H1N1) to cause severe neurological events like ischemic stroke in infants.
  • It suggests a need for heightened awareness of influenza-associated stroke risk in young children.
  • Influenza vaccination may play a role in preventing such rare but serious complications.
Abstract

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