Pediatric neurological complications of 2009 pandemic influenza A (H1N1)

Sita Kedia1, Britt Stroud, Julie Parsons

  • 1Department of Child Neurology, The Children's Hospital, University of Colorado School of Medicine, Aurora, USA.

Archives of Neurology
|December 15, 2010
PubMed

Insights

Pandemic influenza A H1N1 virus (pH1N1) caused severe neurological complications in children, especially those with prior neurological conditions. Aggressive treatment and prevention are crucial for these vulnerable children.

Area of Science:

  • Pediatric Neurology
  • Infectious Diseases
  • Virology

Background:

  • The 2009 pandemic influenza A H1N1 virus (pH1N1) posed a significant global health threat.
  • Neurological complications in pediatric influenza cases require thorough investigation.

Observation:

  • A retrospective case series analyzed children hospitalized with pH1N1 between May and November 2009.
  • Fifty-nine suspected cases of neurological complications were identified, with 23 confirmed.
  • Seventeen of the confirmed cases (74%) had pre-existing neurological conditions.

Findings:

  • The most frequent neurological manifestation was seizures (62%), followed by encephalopathy (26%).
  • Lumbar punctures revealed elevated protein in 3/6 patients; EEG showed diffuse slowing in 7/9; MRI was abnormal in 5/6.
  • Thirteen percent of patients died, and 22% experienced short-term disability.

Implications:

  • pH1N1 infection can lead to a diverse range of severe neurological outcomes in children.
  • Children with pre-existing neurological conditions are at higher risk for severe disease and adverse outcomes.
  • Targeted influenza prevention and prompt, aggressive treatment are essential for high-risk pediatric populations.
Abstract

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