Atypical Manifestations in Glut1 Deficiency Syndrome.

Area of Science:

• Neurology
• Genetics
• Metabolic Disorders

Background:

• Glucose transporter type 1 deficiency syndrome (GlcD1) is a rare, inherited neurological disorder.
• It stems from mutations in the SLC2A1 gene, impairing glucose transport to the brain.
• The condition presents with a diverse range of symptoms, often including cognitive deficits and movement disorders.

Purpose of the Study:

• To review the broad clinical spectrum of GlcD1.
• To highlight and describe less commonly reported, peculiar clinical manifestations.
• To provide resources for accurate and timely diagnosis of GlcD1.

Main Methods:

• Literature review focusing on GlcD1.
• Analysis of clinical presentations, including rare symptoms.
• Inclusion of video evidence for specific manifestations.

Main Results:

• GlcD1 typically presents with cognitive impairment, epilepsy, dyskinesia, microcephaly, anemia, and gait issues.
• Oculogyric crises, weakness, and various forms of paroxysmal dyskinesia are peculiar but under-described symptoms.
• These diverse symptoms can present in various combinations.

Conclusions:

• GlcD1 exhibits a wide and sometimes unusual clinical spectrum.
• Recognizing less common manifestations like oculogyric crises and specific dyskinesias is crucial.
• Enhanced understanding aids in achieving a correct and rapid diagnosis of GlcD1.