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Neonatal hyperekplexia: a case report.

A Pascotto1, G Coppola

  • 1Department of Pediatrics, Naples University, Italy.

Epilepsia
|September 1, 1992
PubMed
Summary
This summary is machine-generated.

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This case study describes a baby with transient generalized stiffness and abnormal startle responses, a condition observed in family members with hyperekplexia. The child showed normal development by age 3, with persistent exaggerated startle reflexes.

Area of Science:

  • Neurology
  • Genetics
  • Pediatrics

Background:

  • Hyperekplexia is a rare neurological disorder characterized by exaggerated startle responses.
  • Genetic factors are implicated in hyperekplexia, with familial cases suggesting autosomal dominant inheritance patterns.
  • Neonatal onset of generalized stiffness, hyperreflexia, and myoclonic jerks can mimic epileptic seizures.

Purpose of the Study:

  • To report a case of infantile hyperekplexia with transient generalized stiffness.
  • To highlight the phenotypic variability and familial occurrence of hyperekplexia.
  • To describe the clinical course and long-term neurological findings in a child with hyperekplexia.

Main Methods:

  • Clinical case presentation and detailed neurological examination.

Related Experiment Videos

  • Review of family history for neurological disorders.
  • Longitudinal follow-up of the child's psychomotor development and neurological signs.

    • Main Results:

    • The infant presented with transient generalized stiffness, hyperreflexia, and myoclonic jerks from birth.
    • A family history of hyperekplexia was identified in the father and paternal grandfather.
    • At 3 years of age, the child exhibited normal psychomotor development but a persistent exaggerated startle response.

    Conclusions:

    • Infantile hyperekplexia can present with transient generalized stiffness and myoclonic jerks.
    • Familial hyperekplexia underscores the genetic basis of the disorder.
    • Persistent abnormal startle responses may be a long-term sequela even with normal psychomotor development.