U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > Epileptic encephalopathy, infantile or early childhood, 2

Epileptic encephalopathy, infantile or early childhood, 2

Synonyms
Developmental and epileptic encephalopathy 92

Summary

Developmental and epileptic encephalopathy-92 (DEE92) is characterized in most patients by onset of seizures in infancy or childhood and associated with global developmental delay and variable impairment of intellectual development. The seizure type and severity varies, and seizures may be intractable in some patients. Some patients are severely affected, unable to walk or speak, whereas others show some development. Additional neurologic features, including cortical blindness, dystonia, and spasticity, may occur. Mutations occur de novo (summary by Hamdan et al., 2017). For a discussion of genetic heterogeneity of DEE, see 308350. [from OMIM]

Available tests

13 tests are in the database for this condition.

Clinical tests (13 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: DEE92, ICEE2, GABRB2
    Summary: gamma-aminobutyric acid type A receptor subunit beta2

Clinical features

Help
Imported from Human Phenotype Ontology (HPO)

Show allHide all

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.