raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1941

Juvenile absence epilepsy

Synonyms: JAE

Type
Disease
Group
Disorder
Inheritance
Multigenic/multifactorial, Unknown
Age of onset
Adolescent
Status
active

Juvenile absence epilepsy (JAE) is a genetic epilepsy with onset occurring around puberty. JAE is characterized by sporadic occurrence of absence seizures, frequently associated with a long-life prevalence of generalized tonic-clonic seizures (GTCS) and sporadic myoclonic jerks.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enJuvenile absence epilepsyJAE
frEpilepsie-absence juvénileEAJ
deAbsencen-Epilepsie, juvenileEpilepsia minor juvenilis
esEpilepsia de ausencia juvenil
itEpilessia con assenze del giovane
nlJuveniele absence-epilepsie= en
ptEpilepsia de ausências juvenil
plMłodzieńcza padaczka z napadami nieświadomości= en
csJuvenilní absence= en
ukЮвенільна абсансна епілепсія= en
zh青少年失神癫痫= en
trJüvenil absans epilepsi= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM607631Evalidated
ICD-10G40.3NTBTattributedvalidated
ICD-118A61.31Especificvalidated
MONDO0011876Evalidated
MONDO11876Evalidated
MONDO800453Evalidated
UMLSC4317339Evalidated
GARD2162Evalidated
MedDRA10085031Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
EFHC1Major susceptibility factor inAssessedHGNC:16406ENSG000000960936088156p12.2EF-hand domain containing 117159113[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Annual incidence1-9 / 100 0007.5 / 100 000EuropeValue and classValidated8275976[PMID]_ORPHANET
Point prevalence1-9 / 100 000—EuropeClass onlyValidatedORPHANET_Dr Gabrielle Rudolf[EXPERT]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

13 annotations · validated 2024-03-28
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002069Bilateral tonic-clonic seizure
HP:0002392EEG with polyspike wave complexes
HP:0002197Generalized-onset seizure
Frequent (79-30%)
HP:0000496Abnormality of eye movement
HP:0000153Abnormality of the mouth
HP:0002121Generalized non-motor (absence) seizure
HP:0001336Myoclonus
Occasional (29-5%)
HP:0100851Abnormal emotion/affect behavior
HP:0000739Anxiety
HP:0002373Febrile seizure (within the age range of 3 months to 6 years)
HP:0032794Myoclonic seizure
HP:0001328Specific learning disability
HP:0002133Status epilepticus

Run the differential on the 3 obligate / very frequent terms

Annotation source: 37714126[PMID]_32644481[PMID]_7964917[PMID]_16970883[PMID]

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Sources for this card