raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:392

Holt-Oram syndrome

Synonyms: Atriodigital dysplasia type 1 · HOS · Heart-hand syndrome type 1

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Antenatal, Neonatal
Status
active

A genetic syndrome with limb reduction defects characterized by skeletal abnormalities of the upper limbs and mild-to-severe congenital cardiac defects.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHolt-Oram syndromeAtriodigital dysplasia type 1 · HOS · Heart-hand syndrome type 1
frSyndrome de Holt-OramSyndrome coeur-main type 1 · Syndrome coeur-membres type 1 · Dysplasie atrio-digitale type 1 · HOS · Syndrome cardiomélique type 1
deHolt-Oram-SyndromDysplasie, atriodigitale, Typ 1 · HOS · Herz-Hand-Syndrom Typ 1
esSíndrome de Holt-OramDisplasia atriodigital tipo 1 · Síndrome mano-corazón tipo 1
itSindrome di Holt-OramDisplasia atriodigitale · Sindrome cuore-mano
nlSyndroom van Holt-OramAtriodigitale dysplasie type 1 · HOS · Hart-handsyndroom type 1
ptSíndrome Holt-OramDisplasia auriculo-digital · Síndrome coração-mão
plZespół Holt i OramaDysplazja przedsionkowo-palcowa typu 1 · HOS · Zespół serce - ręka typu 1
csHoltové-Oramův syndromAtriodigitální dysplázie, typ I · HOS · Holt-Oramův syndrom
ukСиндром Холта-ОрамаАтріодигітальна дисплазія типу 1 · Синдром серце-рука, тип 1 · HOS
zhHolt-Oram综合征心房-手指发育不良1型
trHolt-Oram sendromuHOS · Kalp-el sendromu tip 1 · Atriyodijital displazi tip 1

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM142900Evalidated
ICD-10Q87.2NTBTinclusionvalidated
ICD-11LD2F.1YNTBTindexvalidated
MONDO0007732Evalidated
MeSHC535326Evalidated
UMLSC0265264Evalidated
GARD6666Evalidated
MedDRA10050469Evalidated

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 (7):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
TBX5Disease-causing germline mutation(s) inAssessedHGNC:11604ENSG0000008922560162012q24.21T-box transcription factor 520301290[PMID]
5

Prevalence and incidence

3 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 1 000 0000.7 / 100 000EuropeValue and classValidated25344219[PMID]_EUROCAT European surveillance of congenital anomalies 1990-2011[OTHER]
Prevalence at birth1-9 / 1 000 0000.95 / 100 000HungaryValue and classValidated1996196[PMID]_[EXPERT]
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

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

29 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0030680Abnormal cardiovascular system morphology
HP:0000889Abnormality of the clavicle
HP:0001387Joint stiffness
HP:0001171Split hand
Frequent (79-30%)
HP:0005916Abnormal metacarpal morphology
HP:0009777Absent thumb
HP:0006501Aplasia/Hypoplasia of the radius
HP:0001631Atrial septal defect
HP:0001678Atrioventricular block
HP:0011705First degree atrioventricular block
HP:0002808Kyphosis
HP:0004757Paroxysmal atrial fibrillation
HP:0002650Scoliosis
HP:0001199Triphalangeal thumb
HP:0001629Ventricular septal defect
Occasional (29-5%)
HP:0001679Abnormal aortic morphology
HP:0031095Abnormal humerus morphology
HP:0000772Abnormal rib morphology
HP:0010772Anomalous pulmonary venous return
HP:0006695Atrioventricular canal defect
HP:0011304Broad thumb
HP:0200021Down-sloping shoulders
HP:0006101Finger syndactyly
HP:0004383Hypoplastic left heart
HP:0001643Patent ductus arteriosus
HP:0000767Pectus excavatum
HP:0009829Phocomelia
HP:0002974Radioulnar synostosis
HP:0000912Sprengel anomaly

Run the differential on the 4 obligate / very frequent terms

7

Sources for this card