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Congenital hyperinsulinism

Congenital hyperinsulinism is a condition that causes individuals to have abnormally high levels of insulin. Insulin is a hormone that helps control levels of blood glucose, also called blood sugar. People with this condition have frequent episodes of low blood glucose (hypoglycemia). In infants and young children, these episodes are characterised by a lack of energy (lethargy), irritability, or difficulty feeding. Repeated episodes of low blood glucose increase the risk for serious complications such as breathing difficulties, seizures, intellectual disability, vision loss, brain damage, and coma.

Description

Congenital hyperinsulinism is a condition that causes individuals to have abnormally high levels of insulin. Insulin is a hormone that helps control levels of blood glucose, also called blood sugar. People with this condition have frequent episodes of low blood glucose (hypoglycemia). In infants and young children, these episodes are characterised by a lack of energy (lethargy), irritability, or difficulty feeding. Repeated episodes of low blood glucose increase the risk for serious complications such as breathing difficulties, seizures, intellectual disability, vision loss, brain damage, and coma.

The severity of congenital hyperinsulinism varies widely among affected individuals, even among members of the same family. About 60 percent of infants with this condition experience a hypoglycemic episode within the first month of life. Other affected children develop hypoglycemia by early childhood. Unlike typical episodes of hypoglycemia, which occur most often after periods without food (fasting) or after exercising, episodes of hypoglycemia in people with congenital hyperinsulinism can also occur after eating.

Inheritance patterns

The source lists the following possible inheritance patterns: Autosomal dominant; Autosomal recessive. More than one pattern can apply in different cases.

Other names

Hyperinsulinemia hypoglycemia of infancy

Infancy hyperinsulinemia hypoglycemia

Neonatal hyperinsulinism

Persistent hyperinsulinemia hypoglycemia of infancy

Persistent hyperinsulinemic hypoglycemia

PHHI hypoglycemia

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Lectures complémentaires et références

Historique de l'article

Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
  • 19 juil. 2023 | Dernière version
  • 1 Jan 2014 | Publié à l'origine

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