raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:741

Familial mitral valve prolapse

Type
Morphological anomaly
Group
Disorder
Inheritance
Autosomal dominant
Status
active

A rare familial congenital mitral malformation characterized by systolic displacement of one or both mitral leaflets >2 mm beyond the annular plane into the left atrium. Typical histological findings include myxomatous degeneration and degradation of collagen and elastin. Patients may remain asymptomatic or develop complications such as severe mitral regurgitation, endocarditis, and heart failure.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFamilial mitral valve prolapse
frProlapsus valvulaire mitral familial
deMitralklappenprolaps, familiärer
esProlapso valvular mitral familiar
itProlasso familiare della valvola mitrale
nlFamiliale mitralisklepprolaps
ptProlapso da válvula mitral familiar
plRodzinne wypadanie płatka zastawki mitralnej
csFamiliární prolaps mitrální chlopně
ukСімейний пролапс мітрального клапана
zh家族性二尖瓣脱垂
trAilesel mitral kapak prolapsusu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM157700Evalidated
OMIM607829BTNTvalidated
OMIM610840BTNTvalidated
ICD-10I34.1NTBTattributedvalidated
ICD-11LA87.1YNTBTattributedvalidated
MONDO0008004Evalidated
UMLSC0340364Evalidated
GARD3687Evalidated

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
DCHS1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:13681ENSG0000016634160305711p15.4dachsous cadherin-related 126258302[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

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

7

Sources for this card