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episodic ataxia type 1; episodic ataxia with myokymia; paroxysmal ataxia with neuromyotonia
Genetics:
- autosomal dominant
- associated with defects in KCNA1 are the cause of:
a) episodic ataxia type 1
Clinical manifestations:
- brief episodes of ataxia & dysarthria
- neurological examination during & between attacks demonstrates spontaneous, repetitive discharges in the distal musculature (myokymia) that arise from peripheral nerves
- nystagmus is absent
General
episodic ataxia
Database Correlations
OMIM correlations
MORBIDMAP 176260
References
OMIM :accession 160120