raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:324321

Sinoatrial node dysfunction and deafness

Synonyms: Sinoatrial node dysfunction and hearing loss

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

Sinoatrial node dysfunction and deafness is a rare genetic disease characterized by congenital severe to profound deafness with no evidence of vestibular dysfunction, associated with sinoatrial node dysfunction with pronounced bradycardia and increased variability of heart rate at rest and episodic syncopes that may be triggered by enhanced physical activity and stress.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSinoatrial node dysfunction and deafnessSinoatrial node dysfunction and hearing loss
frDysfonction sinusale et surdité
deSinusknoten-Dysfunktion und SchwerhörigkeitSANDD-Syndrom
esDisfunción del nodo sinusal y sorderaDisfunción del nodo sinusal e hipoacusia
itDisfunzione del nodo senoatriale e sordità
nlSinusknoopdisfunctie en doofheidSinusknoopdisfunctie en gehoorverlies
ptDisfunção do nódulo sino-auricular e surdez
plDysfunkcja węzła zatokowo-przedsionkowego i głuchota= en
csDysfunkce sinoatriálního uzlu a hluchota= en
ukДисфункція синоатріального вузла та глухотаДисфункція синоатріального вузла та втрата слуху
zh窦房结功能障碍与耳聋窦房结功能障碍与听力丧失
trSinoatriyal düğüm disfonksiyonu ve sağırlıkSinoatriyal düğüm disfonksiyonu ve işitme kaybı

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614896Evalidated
ICD-10H91.8NTBTattributednot yet validated
ICD-11BC80.2NTBTattributedvalidated
MONDO0013960Evalidated
UMLSC3554018Evalidated

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
CACNA1DDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:1391ENSG000001573881142063p21.1calcium voltage-gated channel subunit alpha1 D21131953[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families8 casesWorldwideCase(s)Validated21131953[PMID]
Point prevalence<1 / 1 000 000—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

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

7

Sources for this card