raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:402075

Familial bicuspid aortic valve

Synonyms: Familial BAV

Type
Morphological anomaly
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Infancy, Neonatal
Status
active

Familial bicuspid aortic valve is a rare, genetic, aortic malformation defined as a presence of abnormal two-leaflet aortic valve in at least 2 first-degree relatives. It is frequently asymptomatic or may be associated with progressive aortic valve disease (aortic regurgitation and/or aortic stenosis, typically due to valve calcification) and a concomitant aortopathy (i.e. aortic dilation, aortic aneurysm and/or dissection).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFamilial bicuspid aortic valveFamilial BAV
frBicuspidie aortique familialeBicuspidie valvulaire aortique familiale · VAB familiale · Valve aortique bicuspide familiale
deBikuspide Aortenklappe, familiäre FormFamiliäre BAV
esVálvula aórtica bicúspide familiar
itValvola aortica bicuspide familiare
nlFamiliale bicuspide aortaklepFamiliale BAV
ptVálvula aórtica bicúspida, forma familiar
plRodzinna dwupłatkowa zastawka aortalna= en
csFamiliární bikuspidální aortální chlopeň= en
ukСімейний двостулковий аортальний клапанСімейний BAV
zh家族性二叶式主动脉瓣家族性BAV
trAilesel biküspid aort kapağıAilesel BAV

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM109730Evalidated
OMIM614823BTNTvalidated
OMIM617912NTBTvalidated
OMIM618496BTNTvalidated
ICD-10Q23.1NTBTattributedvalidated
ICD-11LA8A.22NTBTattributedvalidated
MONDO0007194Evalidated
UMLSC4749284Evalidated

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

5 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
GATA5Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:15802ENSG0000013070061149620q13.33GATA binding protein 524638895[PMID]
NKX2-5Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:2488ENSG000001830726005845q35.1NK2 homeobox 525438918[PMID]
NOTCH1Disease-causing germline mutation(s) inAssessedHGNC:7881ENSG000001484001901989q34.3notch receptor 116025100[PMID]
ROBO4Disease-causing germline mutation(s) inAssessedHGNC:17985ENSG0000015413360752811q24.2roundabout guidance receptor 430455415[PMID]
SMAD6Disease-causing germline mutation(s) inAssessedHGNC:6772ENSG0000013783460293115q22.31SMAD family member 622275001[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

12 annotations · validated 2017-06-07
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0001647Bicuspid aortic valve
Very frequent (99-80%)
HP:0001659Aortic regurgitation
HP:0004380Aortic valve calcification
HP:0001650Aortic valve stenosis
HP:0001680Coarctation of aorta
HP:0030148Heart murmur
HP:0004962Thoracic aorta calcification
Frequent (79-30%)
HP:0005113Dilatation of the aortic arch
HP:0000822Hypertension
Very rare (<4-1%)
HP:0011103Abnormal left ventricular outflow tract morphology
HP:0004933Ascending aortic dissection
HP:0004383Hypoplastic left heart

Run the differential on the 7 obligate / very frequent terms

Annotation source: 16025100[PMID]_22275001[PMID]_9631276[PMID]_16025100[PMID]

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Sources for this card