raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1187

Lethal ataxia with deafness and optic atrophy

Synonyms: Arts syndrome · Lethal ataxia with hearing loss and optic atrophy

Type
Disease
Group
Disorder
Inheritance
X-linked recessive
Age of onset
Infancy, Neonatal
Status
active

Lethal ataxia with deafness and optic atrophy (also known as Arts syndrome) is characterized by intellectual deficit, early-onset hypotonia, ataxia, delayed motor development, hearing impairment and loss of vision due to optic atrophy.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLethal ataxia with deafness and optic atrophyArts syndrome · Lethal ataxia with hearing loss and optic atrophy
frSyndrome d'ataxie-surdité-atrophie optique-létalitéSyndrome d'Arts
deLetale Ataxie mit Schwerhörigkeit und OptikusatrophieArts-Syndrom
esAtaxia letal con sordera y atrofia ópticaAtaxia letal con hipoacusia y atrofia óptica
itAtassia - atrofia ottica - sordità - letalitàSindrome di Arts
nlLetale ataxie met doofheid en opticusatrofieLetale ataxie met gehoorverlies en opticusatrofie · Syndroom van Arts
ptAtaxia letal com surdez e atrofia ópticaAtaxia letal com perda auditiva e atrofia óptica · Síndrome Arts
plŚmiertelna ataksja z głuchotą i atrofią nerwu wzrokowegoZespół Artsa
csLetální ataxie s hluchotou a atrofií optikuArtsův syndrom
ukЛетальна атаксія з глухотою та атрофією зорового нерваСиндром Артса · Летальна атаксія з втратою слуху та атрофією зорового нерва
zh致死性共济失调伴耳聋和视神经萎缩致死性共济失调伴耳聋和视神经萎缩
trSağırlık ve optik atrofi ile letal ataksiSanat sendromu · İşitme kaybı ve optik atrofi ile seyreden letal ataksi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM301835Evalidated
ICD-10E79.8NTBTattributedvalidated
ICD-11LD2H.YNTBTindexvalidated
MONDO0010533Evalidated
MeSHC535388Evalidated
UMLSC0796028Evalidated
GARD8756Evalidated

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 (5):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PRPS1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:9462ENSG00000147224311850Xq22.3phosphoribosyl pyrophosphate synthetase 120301738[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families4 familiesWorldwideFamily(ies)Validated27256512[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_27256512[PMID]

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

30 annotations · validated 2020-05-27
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0030272Abnormal erythrocyte enzyme activity
HP:0007377Abnormality of somatosensory evoked potentials
HP:0000618Blindness
HP:0008527Congenital sensorineural hearing impairment
HP:0003431Decreased motor nerve conduction velocity
HP:0003444EMG: chronic denervation signs
HP:0001324Muscle weakness
HP:0002300Mutism
HP:0000648Optic atrophy
HP:0002719Recurrent infections
HP:0002788Recurrent upper respiratory tract infections
HP:0007258Severe demyelination of the white matter
HP:0032169Severe infection
HP:0000505Visual impairment
Frequent (79-30%)
HP:0012389Appendicular hypotonia
HP:0001284Areflexia
HP:0001251Ataxia
HP:0008936Axial hypotonia
HP:0011185EEG with focal epileptiform discharges
HP:0003537Hypouricemia
HP:0001256Intellectual disability, mild
HP:0002342Intellectual disability, moderate
HP:0001270Motor delay
HP:0000467Neck muscle weakness
HP:0000639Nystagmus
HP:0009830Peripheral neuropathy
HP:0011476Profound sensorineural hearing impairment
HP:0004887Respiratory failure requiring assisted ventilation
HP:0008311Spinal cord posterior columns myelin loss
HP:0002445Tetraplegia

Run the differential on the 12 obligate / very frequent terms

Annotation source: 8498830[PMID]_20301738[PMID]

7

Sources for this card