Treatable Intellectual Disability

GLUT1 Deficiency Syndrome

DIAGNOSIS

Gene
SLC2A1 (AR)

Diagnostic Test
CSF Glucose: Plasma Glucose Ratio

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SIGNS & SYMPTOMS

Neurological
Epilepsy, ataxia, Cerebral atrophy (MRIscan)

Non-Neurological
- - -

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THERAPY

Treatment
Ketogenic Diet

Level of Evidence
4

Clinical Practice
Standard of Care

Treatment Effect
Improves seizure control



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GLUT1 Deficiency Syndrome

GLUT1 Deficiency Syndrome

Glucose transporter type 1 (GLUT1) deficiency syndrome is characterized by childhood epilepsy that is refractory to pharmacologic treatment. Patients may also develop psychomotor retardation, spasticity, ataxia, dysarthria and other paroxysmal neurological phenomena often occurring before meals and resolving after ingestion of glucose rich meals. Symptoms appear between the age of 1 and 4 months, following a normal birth and gestation. (Source: Orphanet)

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