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Incomplete alpha coma pattern in a child.

Rajesh RamachandranNair1, Shelly Karen Weiss

  • 1Division of Neurology, The Hospital for Sick Children, University of Toronto, Toronto, Canada.

Pediatric Neurology
|August 10, 2005
PubMed
Summary
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This study reports the first pediatric case of incomplete alpha coma, an electroencephalogram pattern indicating brain dysfunction. Despite reactivity, the child remained in a vegetative state, highlighting poor prognosis in children.

Area of Science:

  • Neuroscience
  • Pediatric Neurology
  • Clinical Electroencephalography

Background:

  • Alpha coma pattern is a rare electroencephalogram (EEG) finding associated with severe brain injury.
  • The definition of alpha coma has evolved to include reactivity to stimuli.
  • In adults, incomplete alpha coma with reactivity has a better prognosis than the complete pattern.

Observation:

  • A 5-year-old child presented with coma following hypoxic brain damage post-surgery.
  • Electroencephalogram (EEG) revealed an incomplete alpha coma pattern, characterized by reactivity to painful stimuli.
  • The child's clinical course remained a persistent vegetative state.

Findings:

  • This case represents the first documented instance of an incomplete alpha coma pattern in a pediatric patient.

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  • The presence of reactivity in the EEG did not correlate with a positive neurological outcome in this child.
  • The findings challenge the established prognostic significance of reactivity in pediatric alpha coma.

    • Implications:

    • This case highlights the need for further research into the prognostic value of alpha coma patterns in pediatric populations.
    • Understanding EEG patterns in pediatric coma is crucial for accurate diagnosis and management.
    • The findings suggest that adult prognostic criteria for alpha coma may not directly translate to children.