- Glutaric aciduria is a group of inherited metabolic disorders in which abnormalities in the breakdown of certain organic acids can cause related metabolites to accumulate in the body.
- Glutaric aciduria can result from genetic factors that reduce the function of the relevant metabolic enzymes.
- The buildup of metabolites may affect the nervous system, and problems can become more pronounced during metabolic stress such as infection, fasting, or dehydration.
- Some patients may have macrocephaly, delayed motor development, dystonia, abnormal movements, or seizures, but the range and timing of symptoms vary.
- The symptoms and course of glutaric aciduria differ according to the subtype and each person's metabolic burden.
- Neurological symptoms may worsen after acute metabolic stress, and a movement disorder that develops may persist.
- Diagnosis is based on a combined assessment of clinical features, family history, urine organic acids and blood metabolites, and enzyme or genetic testing.
- Test results must be interpreted in the context of age, symptoms, timing of sample collection, and the presence of acute illness; a single test may not be sufficient to confirm or exclude the disorder.
- Management aims to reduce metabolic stress, maintain stable nutrition and hydration, and address neurological problems according to the patient's subtype and symptoms.
- Early diagnosis and sustained metabolic management are important, but treatment outcomes can vary among patients.