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Neuropsychological and behavioral sequelae of amitriptyline overdose in infancy

C R Reynolds1, J A Hickman

  • 1Department of Educational Psychology, Texas A&M University, College Station 77843, USA.

Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists
|January 1, 1989
PubMed

Insights

A child experienced severe developmental issues after amitriptyline hydrochloride poisoning. Neuropsychological testing revealed significant impairments in language, serial processing, and attention.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Toxicology

Background:

  • A 3.5-year-old boy developed significant neuropsychological and behavioral problems.
  • These issues emerged after a severe amitriptyline hydrochloride poisoning incident at 8 months of age.
  • The child exhibited supranormal development prior to the poisoning.

Purpose of the Study:

  • To report on the neuropsychological and behavioral sequelae of amitriptyline hydrochloride poisoning in a young child.
  • To document the specific areas of cognitive and behavioral impairment following toxic exposure.

Main Methods:

  • Case report detailing a child's poisoning with amitriptyline hydrochloride.
  • Toxicology screening confirming a high serum level of amitriptyline (1065 ng/ml).
  • Neuropsychological assessment conducted at 3.5 years of age.

Main Results:

  • The child presented with a range of nonfocal neuropsychological signs.
  • Language development, serial processing, and attentional mechanisms were most affected.
  • Parents reported persistent behavioral and emotional problems post-poisoning.

Conclusions:

  • Amitriptyline hydrochloride poisoning can lead to severe and lasting neuropsychological deficits in children.
  • Impairments in language, attention, and processing skills are significant sequelae.
  • Early toxic exposure can disrupt normal developmental trajectories, necessitating long-term monitoring.

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