raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:98784

Sleep-related hypermotor epilepsy

Synonyms: ADNFLE · Autosomal dominant nocturnal frontal lobe epilepsy · Autosomal dominant sleep-related hypermotor epilepsy · SHE

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Adolescent, Adult, Childhood
Status
active

A rare seizure disorder characterized by intermittent dystonia and/or choreoathetoid movements that occur during sleep. The clusters of nocturnal motor seizures are often stereotyped and brief.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSleep-related hypermotor epilepsyADNFLE · Autosomal dominant nocturnal frontal lobe epilepsy · Autosomal dominant sleep-related hypermotor epilepsy · SHE
frEpilepsie avec crises hypermotrices liées au sommeilADNFLE · Epilepsie frontale à crises nocturnes autosomique dominante · Epilepsie hypermotrice du sommeil autosomique dominante · SHE
deSchlafassoziierte hypermotorische EpilepsieADNFLE · Autosomal-dominante Schlafassoziierte hypermotorische Epilepsie · Autosomal-dominante nächtliche Frontallappenepilepsie · SHE
esEpilepsia hipermotora asociada al sueñoADNFLE · Epilepsia del lóbulo frontal nocturna autosómica dominante · Epilepsia hipermotora asociada al sueño autosómica dominante
itEpilessia notturna del lobo frontale autosomica dominanteADNFLE
nlSlaapgerelateerde hypermotorische epilepsieADNFLE · Autosomaal dominante nachtelijke frontaalkwabepilepsie · Autosomaal dominante slaapgerelateerde hypermotorische epilepsie · SHE
ptEpilepsia noturna do lobo frontal autossómica dominante
plAutosomalna dominująca padaczka nocna płata czołowegoADNFLE
csAutozomálně dominantní noční epilepsie frontálního lalokuADNFLE
ukАутосомно-домінантна нічна лобна епілепсіяADNFLE · Аутосомно-домінантна гіпермоторна епілепсія, повязана зі сном
zh常染色体显性遗传夜间额叶癫痫常染色体显性遗传睡眠相关过度运动性癫痫
trOtozomal dominant noktürnal frontal lob epilepsisiADNFLE · Otozomal dominant uyku-ilişkili hipermotor epilepsi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM600513BTNTvalidated
OMIM603204BTNTvalidated
OMIM605375BTNTvalidated
OMIM610353BTNTvalidated
OMIM615005BTNTvalidated
ICD-10G40.0NTBTattributedvalidated
ICD-118A61.4YNTBTindexvalidated
MONDO0020300Evalidated
MeSHC579932Evalidated
UMLSC3696898Evalidated
GARD11918Evalidated

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 (3):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

7 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
DEPDC5Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:18423ENSG0000010015061419122q12.2-q12.3DEP domain containing 5, GATOR1 subcomplex subunit23542697[PMID]_23542701[PMID]
CABP4Disease-causing germline mutation(s) inAssessedHGNC:1386ENSG0000017554460896511q13.2calcium binding protein 429108277[PMID]
CHRNA2Disease-causing germline mutation(s) inAssessedHGNC:1956ENSG000001209031185028p21.2cholinergic receptor nicotinic alpha 2 subunit16826524[PMID]_20301348[PMID]
CHRNA4Disease-causing germline mutation(s) inAssessedHGNC:1958ENSG0000010120411850420q13.33cholinergic receptor nicotinic alpha 4 subunit7550350[PMID]_20301348[PMID]
CHRNB2Disease-causing germline mutation(s) inAssessedHGNC:1962ENSG000001607161185071q21.3cholinergic receptor nicotinic beta 2 subunit11062464[PMID]_20301348[PMID]
CRHDisease-causing germline mutation(s) inAssessedHGNC:2355ENSG000001475711225608q13.1corticotropin releasing hormone16222669[PMID]_20301348[PMID]
KCNT1Disease-causing germline mutation(s) inAssessedHGNC:18865ENSG000001071476081679q34.3potassium sodium-activated channel subfamily T member 123086396[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families100 familiesWorldwideFamily(ies)Validated20301348[PMID]
Point prevalenceUnknown—EuropeClass onlyValidatedORPHANET

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

22 annotations · validated 2021-03-04
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0031951Nocturnal seizures
Frequent (79-30%)
HP:0000733Abnormal repetitive mannerisms
HP:0004305Involuntary movements
HP:0002268Paroxysmal dystonia
Occasional (29-5%)
HP:0000739Anxiety
HP:0100543Cognitive impairment
HP:0025237Confusional arousal
HP:0000716Depression
HP:0011193EEG with focal spikes
HP:0011174Hyperkinetic seizures
HP:0002883Hyperventilation
HP:0031535Increased theta frequency activity in EEG
HP:0011182Interictal epileptiform activity
HP:0025236Somnambulism
HP:0031589Suicidal ideation
HP:0000020Urinary incontinence
Very rare (<4-1%)
HP:0007018Attention deficit hyperactivity disorder
HP:0000708Atypical behavior
HP:0002069Bilateral tonic-clonic seizure
HP:0001256Intellectual disability, mild
HP:0025235Non-rapid eye movement parasomnia
HP:0001345Psychotic mentation

Run the differential on the 1 obligate / very frequent terms

Annotation source: 25194481[PMID]_20301348[PMID]_30234941[PMID]

7

Sources for this card