raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:79097

Folinic acid-responsive seizures

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

Folinic acid-responsive seizures is a very rare neonatal epileptic encephalopathy disorder characterized clinically by myoclonic and clonic, or clonic seizures associated with apnea occurring several hours to 5 days after birth and responding to folinic acid.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFolinic acid-responsive seizures
frConvulsions sensibles à l'acide folinique
deFolinsäure-abhängige AnfälleFolinsäure-abhängigen Krämpfe
esEpilepsia sensible al ácido folínico
itConvulsioni sensibili all'acido folinico
nlFolinezuurresponsieve insulten
ptConvulsões sensíveis ao ácido folínico
plNapady reagujące na kwas folinowy
csKřeče reagující na folinát
ukСудоми, чутливі до фолінієвої кислоти
zh亚叶酸反应性癫痫
trFolinik aside duyarlı nöbetler

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10G40.3NTBTattributedvalidated
ICD-115C59.YNTBTindexvalidated
MONDO0019197Evalidated
UMLSC4273952Evalidated

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

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
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

38 annotations · validated 2021-09-28
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001251Ataxia
HP:0012446Decreased CSF 5-methyltetrahydrofolate concentration
HP:0001263Global developmental delay
HP:0001250Seizure
Frequent (79-30%)
HP:0003270Abdominal distention
HP:0000708Atypical behavior
HP:0000729Autistic behavior
HP:0001272Cerebellar atrophy
HP:0006808Cerebral hypomyelination
HP:0012448Delayed myelination
HP:0010845EEG with generalized slow activity
HP:0040204Elevated CSF neopterin level
HP:0001298Encephalopathy
HP:0004302Functional motor deficit
HP:0010841Multifocal epileptiform discharges
HP:0002098Respiratory distress
Occasional (29-5%)
HP:0100022Abnormality of movement
HP:0002104Apnea
HP:0010819Atonic seizure
HP:0002136Broad-based gait
HP:0002072Chorea
HP:0020221Clonic seizure
HP:0002376Developmental regression
HP:0001332Dystonia
HP:0006892Frontotemporal cerebral atrophy
HP:0001288Gait disturbance
HP:0002123Generalized myoclonic seizure
HP:0001347Hyperreflexia
HP:0001276Hypertonia
HP:0002521Hypsarrhythmia
HP:0000737Irritability
HP:0000545Myopia
HP:0000648Optic atrophy
HP:0002465Poor speech
HP:0000407Sensorineural hearing impairment
HP:0002360Sleep abnormality
HP:0001285Spastic tetraparesis
HP:0002133Status epilepticus

Run the differential on the 4 obligate / very frequent terms

Annotation source: 25274592[PMID]_24080039[PMID]

7

Sources for this card