Diverse seizure presentation of acute Mycoplasma pneumoniae encephalitis resolving with immunotherapy

Dimitrios Arkilo1, Beth Pierce, Frank Ritter

  • 11Minnesota Epilepsy Group, St. Paul, MN, USA.

Insights

Three children with new-onset seizures, refractory to antiepileptic drugs, recovered fully after immunotherapy. Mycoplasma pneumoniae infection was identified as a potential cause for these pediatric epilepsy cases.

Area of Science:

  • Pediatric Neurology
  • Infectious Diseases
  • Immunology

Background:

  • New-onset seizures in children can be challenging to manage, particularly when refractory to standard antiepileptic medications.
  • Identifying underlying causes, including infectious triggers, is crucial for effective treatment strategies in pediatric epilepsy.

Observation:

  • Three previously healthy children presented with new-onset, severe, and refractory seizures.
  • All patients exhibited serum immunoglobulin M positivity for Mycoplasma pneumoniae.
  • Symptoms included focal motor seizures, nonconvulsive seizures, and hallucinations.

Findings:

  • Aggressive management combining immunotherapy (intravenous steroids and immunoglobulin) with antiepileptic medications led to significant clinical improvement.
  • All three patients achieved virtually complete recovery and excellent seizure control.
  • Mycoplasma pneumoniae infection is implicated as a potential cause of new-onset refractory epilepsy in these pediatric cases.

Implications:

  • This case series suggests that Mycoplasma pneumoniae infection should be considered in the differential diagnosis of new-onset pediatric seizures.
  • Immunotherapy, alongside antiepileptic drugs, may be a highly effective treatment approach for seizure disorders associated with Mycoplasma pneumoniae.
  • Early and aggressive treatment can lead to favorable long-term outcomes in children presenting with severe, infection-associated epilepsy.

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