Acute disseminated encephalomyelitis in children: a single institution experience of 28 patients

Po-Cheng Hung1, Huei-Shyong Wang, Ming-Liang Chou

  • 1Division of Pediatric Neurology, Chang Gung Children's Hospital, Chang Gung University, Taoyuan, Taiwan. h2918@cgmh.org.tw

Neuropediatrics
|April 5, 2012
PubMed

Insights

This study details acute disseminated encephalomyelitis (ADEM) in Taiwanese children, noting common symptoms like impaired consciousness and white matter lesions. Steroid treatment led to rapid recovery, with most children experiencing complete recovery.

Area of Science:

  • Pediatric Neurology
  • Neuroimmunology
  • Demyelinating Diseases

Background:

  • Acute disseminated encephalomyelitis (ADEM) is an immune-mediated demyelinating disease affecting the central nervous system.
  • Understanding ADEM's presentation and outcomes in diverse pediatric populations is crucial for effective management.

Purpose of the Study:

  • To characterize the clinical, laboratory, and neuroimaging features of ADEM in Taiwanese children.
  • To compare these findings with international cohorts from the United States and Japan.
  • To evaluate treatment responses and outcomes in this pediatric cohort.

Main Methods:

  • Retrospective review of medical records and MRI scans for 28 Taiwanese children diagnosed with ADEM (2001-2009).
  • Analysis of clinical presentation, prodromal illness, cerebrospinal fluid findings, and neuroimaging results.
  • Assessment of treatment protocols, primarily steroid therapy, and patient outcomes.

Main Results:

  • The mean age of onset was 6 years 9 months, with 24 children having a preceding illness.
  • Common symptoms included impaired consciousness and headache; MRI revealed white matter lesions, frequently in frontal/parietal lobes and deep gray matter, with no cortical involvement.
  • Intrathecal oligoclonal bands were absent in cerebrospinal fluid samples.

Conclusions:

  • Steroid treatment, including high-dose intravenous methylprednisolone and dexamethasone, was associated with rapid recovery.
  • All patients survived, with 23 achieving complete recovery and five experiencing mild sequelae.
  • Taiwanese pediatric ADEM shares similarities with international cohorts but highlights specific neuroimaging patterns and favorable outcomes with prompt steroid intervention.

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