# Familial paroxysmal ataxia

INSERM

## Source

INSERM. (1999). Orphanet: an online rare disease and orphan drug data base. *Familial paroxysmal ataxia*. ORPHA:97

Episodic ataxia type 2 (EA2) is the most frequent form of Hereditary episodic ataxia (EA; see this term) characterized by paroxysmal episodes of ataxia lasting hours, with interictal nystagmus and mildly progressive ataxia.