raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:589821

Congenital-onset Steinert myotonic dystrophy

Synonyms: Congenital-onset Steinert disease · Congenital-onset myotonic dystrophy type 1

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal dominant
Age of onset
Antenatal, Neonatal
Status
active

This disease is described under Steinert myotonic dystrophy

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCongenital-onset Steinert myotonic dystrophyCongenital-onset Steinert disease · Congenital-onset myotonic dystrophy type 1
frDystrophie myotonique de Steinert, forme congénitaleDystrophie myotonique de type 1, forme congénitale · Maladie de Steinert, forme congénitale
deMyotone Dystrophie Steinert, kongenitale FormSteinert-Krankheit, kongenitale · Myotone Dystrophie Typ 1, kongenitale Form
esDistrofia miotónica de Steinert de inicio congénitoDistrofia miotónica tipo 1 de inicio congénito · Enfermedad de Steinert de inicio congénito
itDistrofia miotonica congenita di SteinertDistrofia miotonica congenita tipo 1 · Malattia congenita di Steinert
nlMyotone dystrofie van Steinert met congenitale aanvangMyotone dystrofie type 1 met congenitale aanvang · Ziekte van Steinert met congenitale aanvang
ptDistrofia miotónica de Steinert de início congénito
plWrodzona dystrofia miotoniczna Steinerta= en
csVrozená Steinertova myotonická dystrofie= en
ukВроджена міотонічна дистрофія ШтейнертаВроджена міотонічна дистрофія 1-го типу · Вроджена хвороба Штейнерта
zhCongenital-onset Steinert myotonic dystrophy= en
trCongenital-onset Steinert myotonic dystrophy= en
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM160900NTBTvalidated
ICD-10G71.1NTBTattributedvalidated
ICD-118C71.0NTBTindexvalidated
MONDO0035646Evalidated
UMLSC5680305Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
DMPKDisease-causing germline mutation(s) inAssessedHGNC:2933ENSG0000010493660537719q13.32DM1 protein kinase31326502[PMID]
5

Prevalence and incidence

5 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birthUnknown—WorldwideClass onlyValidatedORPHANET
Prevalence at birth1-9 / 100 0002.1 / 100 000CanadaValue and classValidated23415617[PMID]
Prevalence at birth1-9 / 1 000 0000.94 / 100 000ItalyValue and classValidated26882032[PMID]
Prevalence at birth1-5 / 10 00047.6 / 100 000United StatesValue and classValidated33472919[PMID]
Point prevalenceUnknown—WorldwideClass 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

34 annotations · validated 2022-10-13
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0031843Bradyphrenia
HP:0000297Facial hypotonia
HP:0000256Macrocephaly
HP:0010804Tented upper lip vermilion
Frequent (79-30%)
HP:0011710Bundle branch block
HP:0011705First degree atrioventricular block
HP:0002486Myotonia
HP:0001319Neonatal hypotonia
HP:0002643Neonatal respiratory distress
HP:0007010Poor fine motor coordination
HP:0001622Premature birth
HP:0002650Scoliosis
HP:0000736Short attention span
HP:0011098Speech apraxia
HP:0001883Talipes
HP:0002119Ventriculomegaly
Occasional (29-5%)
HP:0002027Abdominal pain
HP:0001671Abnormal cardiac septum morphology
HP:0000729Autistic behavior
HP:0000518Cataract
HP:0002019Constipation
HP:0004325Decreased body weight
HP:0001558Decreased fetal movement
HP:0000750Delayed speech and language development
HP:0002014Diarrhea
HP:0002015Dysphagia
HP:0040183Encopresis
HP:0000805Enuresis
HP:0002020Gastroesophageal reflux
HP:0000752Hyperactivity
HP:0001643Patent ductus arteriosus
HP:0001561Polyhydramnios
HP:0002360Sleep abnormality
Very rare (<4-1%)
HP:0001513Obesity

Run the differential on the 4 obligate / very frequent terms

Annotation source: 30659139[PMID]_31520483[PMID]_34655747[PMID]

7

Sources for this card