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Diagnosing Glucose Transporter 1 Deficiency at Initial Presentation Facilitates Early Treatment

Cigdem Inan Akman1, Julia Yu2, Aliza Alter1

  • 1Division of Pediatric Neurology, Department of Neurology, Colleen Giblin Research Laboratory, Columbia University College of Physician and Surgeons, New York, NY; Division of Pediatric Neurology, Department of Neurology, Pediatric Epilepsy Center, Columbia University College of Physician and Surgeons, New York, NY.

The Journal of Pediatrics
|January 27, 2016
PubMed

Insights

Glucose transporter 1 deficiency syndrome (Glut1 DS) often presents in infancy with seizures and eye movement issues. Early recognition of these initial clinical events is crucial for timely diagnosis and treatment of this treatable encephalopathy.

Area of Science:

  • Neurology
  • Pediatrics
  • Metabolic Disorders

Background:

  • Glucose transporter 1 deficiency syndrome (Glut1 DS) is a rare genetic disorder affecting glucose transport into the brain.
  • It leads to a range of neurological symptoms, often presenting in infancy.
  • Early diagnosis is critical for effective management and improved outcomes.

Purpose of the Study:

  • To characterize the initial clinical manifestations of Glut1 DS.
  • To identify patterns that can aid in earlier diagnosis.
  • To improve long-term outcomes through prompt intervention.

Main Methods:

  • Retrospective review of 133 patients diagnosed with Glut1 DS at a single institution.
  • Analysis of family interviews and medical records to identify the first reported clinical events.
  • Correlation analysis between clinical presentation, demographic data, and diagnostic markers.

Main Results:

  • The average age of the first clinical event was 8.15 months, with 68% of patients experiencing symptoms before 6 months of age.
  • Seizures were the most common initial symptom (61%), followed by eye movement abnormalities (38%) and changes in muscle tone (22%).
  • Earlier onset correlated with eye movement abnormalities, lower cerebrospinal fluid glucose, and lower Columbia Neurological Scores.

Conclusions:

  • Glut1 DS is a treatable cause of infantile encephalopathy.
  • Recognizing the diverse early clinical signs is essential for prompt diagnosis.
  • Early diagnosis and treatment can significantly improve long-term outcomes for affected children.
Abstract

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