raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:708203

Intellectual disability-small hands and feet-drug-resistant epilepsy syndrome

Synonyms: SMC1A-related intellectual disability-small hands and feet-drug-resistant epilepsy syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
X-linked dominant
Age of onset
Infancy, Neonatal
Status
active

Orphadata ships no English definition for this code.

1

Names in Orphadata languages

9 of 12 languages
LangNameSynonyms
enIntellectual disability-small hands and feet-drug-resistant epilepsy syndromeSMC1A-related intellectual disability-small hands and feet-drug-resistant epilepsy syndrome
frSyndrome de déficience intellecutelle-petites mains et pieds-épilepsie réfractaireSyndrome de déficience intellecutelle-petites mains et pieds-épilepsie réfractaire associée à SMC1A
deIntelligenzminderung-kleine Hände und Füße-medikamentenresistente Epilepsie-SyndromSMC1A-assoziiertes Intelligenzminderung-Syndrom
esSíndrome de discapacidad intelectual-manos y pies pequeños-epilepsia farmacorresistenteSíndrome de discapacidad intelectual-manos y pies pequeños-epilepsia farmacorresistente asociado a SMC1A
itSindrome disabilità intellettiva-mani e piedi piccoli-epilessia farmaco resistenteSindrome disabilità intellettiva-mani e piedi piccoli-epilessia farmaco resistente correlata a SMC1A
nlIntellectuele achterstand - kleine handen en voeten - refractaire epilepsie-syndroomSMC1A-gerelateerd intellectuele achterstand - kleine handen en voeten - refractaire epilepsie-syndroom
ptIntellectual disability-small hands and feet-drug-resistant epilepsy syndrome
plZespół niepełnosprawności intelektualnej, małych dłoni i stóp oraz padaczki lekoopornej= en
csIntellectual disability-small hands and feet-drug-resistant epilepsy syndrome= en
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM301044NTBTvalidated

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.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
SMC1ADisease-causing germline mutation(s) inAssessedHGNC:11111ENSG00000072501300040Xp11.22structural maintenance of chromosomes 1A26752331[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families5 casesWorldwideCase(s)Validated26752331[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated26752331[PMID]_ORPHANET

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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card