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Fatal parvovirus B19 myocarditis in children and possible dysimmune mechanism

Berengere Koehl1, Mehdi Oualha, Fabrice Lesage

  • 1Service de Réanimation Pédiatrique, Hôpital Necker-Enfants Malades, Paris, France. koehl.berengere@gmail.com

The Pediatric Infectious Disease Journal
|December 17, 2011
PubMed

Insights

Fulminant parvovirus B19 myocarditis can suddenly develop in children after infection. This T cell-mediated inflammatory response against the heart muscle can be fatal, even in previously healthy individuals.

Area of Science:

  • Pediatric Cardiology
  • Infectious Diseases
  • Immunology

Background:

  • Parvovirus B19 is a common childhood virus.
  • Myocarditis is inflammation of the heart muscle.

Observation:

  • Two previously healthy children developed severe myocarditis following parvovirus B19 infection.
  • The condition involved a significant T cell-mediated inflammatory response.

Findings:

  • The inflammatory response was directed against the myocardium (heart muscle).
  • The myocarditis progressed rapidly and resulted in fatal outcomes in both reported cases.

Implications:

  • These cases highlight a rare but severe complication of parvovirus B19 infection in children.
  • Understanding this T cell-driven mechanism is crucial for diagnosing and potentially managing fulminant parvovirus myocarditis.

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