Treatable Intellectual Disability

Glutaric Acidemia II

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DIAGNOSIS

Gene
ETFA, ETFB, ETFDH (AR)

Diagnostic Test
Urine Organic Acids

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SIGNS & SYMPTOMS

Neurological
Encephalopathic crisis, stroke, basal ganglia lesions (MRIscan)

Non-Neurological
Dysmorphisms, macrocephaly, urine sweaty feet odor

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THERAPY

Treatment
Carnitine, Riboflavin, β-hydroxybutyrate Supplements; Sick Day Management

Level of Evidence
5

Clinical Practice
Standard of Care

Treatment Effect
Prevents metabolic decompensation; improves systemic manifestations



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Glutaric Acidemia II

Multiple FAD dehydrogenase deficiency, also known as glutaric aciduria type II, impairs fatty acid oxidation, and also stops the oxidation of branched amino acids, lysine and glutaric acid. Complete deficiency causes severe disorders in neonates, including acidotic coma without ketosis, hypoglycemia, hyperammonemia, hypotonia, myocardiopathy, and sometimes congenital malformations (polycystic kidneys, dysmorphic facies). Juvenile, adolescent or even adult forms have been reported but are less severe, with muscular hypotonia, progressive myocardiopathy or proximal myopathy. (Source: Orphanet)

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