raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:369929

Primary hyperaldosteronism-seizures-neurological abnormalities syndrome

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Infancy, Neonatal
Status
active

A rare, genetic, neurologic disease characterized by primary hyperaldosteronism presenting with early-onset, severe hypertension, hypokalemia and neurological manifestations (including seizures, severe hypotonia, spasticity, cerebral palsy and profound developmental delay/intellectual disability).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPrimary hyperaldosteronism-seizures-neurological abnormalities syndrome
frSyndrome d'hyperaldostéronisme primitif-épilepsie-anomalies neurologiques
dePrimärer Hyperaldosteronismus-Krämpfe-Neurologische Anomalien-Syndrom
esSíndrome de hiperaldosteronismo primario-crisis-anomalías neurológicas
itSindrome da iperaldosteronismo primitivo-crisi epilettiche-anomalie neurologicheAPA con malattia neuromuscolare complessa · Adenoma di Conn con malattia neuromuscolare complessa · Adenoma secernente adolsterone con malattia neuromuscolare complessa
nlPrimair hyperaldosteronisme - insulten - neurologische anomalieën-syndroom
ptAdenoma secretor de aldosterona com doença neuromuscular complexa
plGruczolak produkujący aldosteron ze złożoną chorobą nerwowo-mięśniowąAPA ze złożoną chorobą nerwowo-mięśniową · Gruczolak Conna ze złożoną chorobą nerwowo-mięśniową · Gruczolak wydzielający aldosteron ze złożoną chorobą nerwowo-mięśniową
csAdenom produkující aldosteron se záchvaty a neurologickými abnormalitamiAPA se záchvaty a neurologickými abnormalitami · Adenom sekretující aldosteron se záchvaty a neurologickými abnormalitami · Connův adenom se záchvaty a neurologickými abnormalitami
ukСиндром первинного гіперальдостеронізму-судом-неврологічних порушень
zh原发性醛固酮增多症伴癫痫和神经系统异常综合征
trPrimer hiperaldosteronizm-nöbetler-nörolojik anormallikler sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615474Evalidated
ICD-10E26.0NTBTattributedvalidated
MONDO0014200Evalidated
MONDO14200Evalidated
UMLSC5230308Evalidated

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
CACNA1DDisease-causing germline mutation(s) (gain of function) inAssessedHGNC:1391ENSG000001573881142063p21.1calcium voltage-gated channel subunit alpha1 D23913001[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated23913001[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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 2016-08-29
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0040084Abnormal circulating renin
HP:0000822Hypertension
HP:0000859Increased circulating aldosterone concentration
Very frequent (99-80%)
HP:0100021Cerebral palsy
HP:0001263Global developmental delay
HP:0002900Hypokalemia
HP:0001250Seizure
HP:0001714Ventricular hypertrophy
Frequent (79-30%)
HP:0002305Athetosis
HP:0002069Bilateral tonic-clonic seizure
HP:0011410Caesarian section
HP:0100704Cerebral visual impairment
HP:0100285EMG: impaired neuromuscular transmission
HP:0002384Focal impaired awareness seizure
HP:0011166Focal myoclonic seizure
HP:0010864Intellectual disability, severe
HP:0200114Metabolic alkalosis
HP:0001959Polydipsia
HP:0002092Pulmonary arterial hypertension
HP:0011706Second degree atrioventricular block
HP:0001258Spastic paraplegia
Occasional (29-5%)
HP:0000421Epistaxis
HP:0002315Headache
HP:0002170Intracranial hemorrhage
HP:0002018Nausea
HP:0000787Nephrolithiasis
HP:0000360Tinnitus
HP:0001629Ventricular septal defect
Very rare (<4-1%)
HP:0008221Adrenal hyperplasia
Excluded (0%)
HP:0011739Dexamethasone-suppresible primary hyperaldosteronism

Run the differential on the 8 obligate / very frequent terms

Annotation source: 23913001[PMID]_26934393[PMID]_27036860[PMID]

7

Sources for this card