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Related Experiment Videos

Angelman syndrome: clinical profile.

R T Zori1, J Hendrickson, S Woolven

  • 1Raymond C. Philips Research and Education Unit, University of Florida, Gainesville 32610.

Journal of Child Neurology
|July 1, 1992
PubMed
Summary
This summary is machine-generated.

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Early diagnosis of Angelman syndrome is challenging, often occurring after age one despite common infant issues like feeding difficulties and seizures. A high index of suspicion is crucial for identifying this genetic disorder.

Area of Science:

  • Genetics
  • Developmental Pediatrics
  • Clinical Neurology

Background:

  • Angelman syndrome is a rare genetic disorder characterized by severe developmental delay, intellectual disability, and specific behavioral features.
  • Clinical presentation can be variable, making early diagnosis difficult.

Purpose of the Study:

  • To further delineate the clinical and developmental features of Angelman syndrome.
  • To identify key diagnostic challenges and recommend strategies for earlier identification.

Main Methods:

  • Data collection through physical examinations, laboratory data, and family questionnaires.
  • Comprehensive review of medical and surgical histories of affected individuals.
  • Literature review to supplement collected data.

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Main Results:

  • Most infants presented with feeding difficulties, developmental delay, or seizures, but diagnosis was rarely made before one year of age.
  • Visual complaints or findings were common, while other medical complications were infrequent.
  • Sixty percent of children had a cytogenetically demonstrated deletion in chromosome 15q11-q13, with no clear clinical differentiation between those with and without the deletion.

Conclusions:

  • Diagnosis of Angelman syndrome in early childhood is difficult due to overlapping symptoms and delayed recognition.
  • A high index of suspicion is recommended for clinicians encountering infants with suggestive developmental and neurological signs.
  • Further research may be needed to identify more specific early biomarkers or diagnostic criteria.