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Glutaric acidemia type 1


ICD-10: E72.3


General information

Estimated occurrence
1:100,000 live births. Wide variation in different populations.

Gene mutation on chromosome 19 (19p13.2). This mutation causes the formation of an incorrect enzyme which in turn leads to a surplus of glutaric acid and a shortage of the enzyme carnitine. Autosomal recessive inheritance.

General symptoms

Children most often show symptoms before the age of two in conjunction with an infection, but the onset may be later during childhood or adulthood. An infection causes a metabolic crisis, which can lead to neurological impairments of varying severity. Infants may show a rapid growth of the head (not hydrocephalus).

Glutaric acidemia is now part of new-born screening for congenital metabolic disorders (the PKU test) in Sweden and in many other countries, but it is not certain that all cases are detected. Early detection permits early treatment.


Glutaric acidemia type 1, Glutaryl-CoA dehydrogenase deficiency.

Orofacial/odontological symptoms

Grinding teeth, oral habits and malocclusion have been reported in children and young people with Glutaric acidemia type 1. Oral motor disabilities are common, which can reduce the ability to eat, drink and control saliva. Many are difficult to understand or cannot speak at all.

Advice on follow-up and treatment

  • Early contact with dental services for intensified prophylactic care and oral hygiene information is essential.
  • Tooth grinding should be followed up, and be managed with a splint when necessary.
  • Feeding and swallowing difficulties are investigated and treated by a specialist team at the hospital or multidisciplinary treatment centre.
  • Training in oral motor skills and extra stimulation in cases of eating disorders, speech difficulties and impaired saliva control may be necessary.
  • Speech, language and communication training is often warranted


National Board of Health and Welfare
Updated: 2019-11-12 14:46