Background: An acquired complete heart block is not common in
previously healthy children. Underlying causes and the treatment of the
acquired heart block would provide the different outcome.
Methods: Retrospective review of two recent cases of acquired
complete heart block in children reported in relation to viral myocarditis.
Result: Two pediatric cases were referred to our facility due
to the complete heart block after they initially presented with low cardiac
output symptoms. Both of those children were implanted with temporary pacemaker
and were administered with intravenous immunoglobulin. Their complete heart
blocks recovered within 72 hours of treatment while their ventricular functions
were gradually improved.
Conclusion: Acquired complete heart block related to the
viral myocarditis in children is reversible despite the initial clinical presentation
which is potentially rapid in its onset and progressive with potentially fatal
outcome. Read more
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