Caring for someone with this diagnosis? Eleplan keeps diagnoses, medications, documents and every specialist in one plan.
Start free with EleplanHereditary episodic ataxia
ORPHA:211062Category
What it is
A group of rare hereditary ataxia characterized by recurrent episodes of ataxia and vertigo which may be progressive. Weakness, dystonia and ataxia are sometimes present in the interictal period. Seven types of episodic ataxia have been described to date (type 1 to type 7), but most of the reported cases are belong to type 1 and 2.
Key facts
- Prevalence
- 1-9 / 100 000
- Classified as
- Category
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Genes reported in subtypes
Orphanet records these genes on 4 more specific entries under this disorder, not on this entry itself:
A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
Powered by Eleplan
A rare diagnosis is just the start. Eleplan keeps the whole care plan in one place.
Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, so you are not retelling the same story to every new specialist. With Ellie, your AI care assistant, on top of it. Free to start.