[1] Affected children, who have no other health or developmental problems, develop seizures during infancy.
Treatment with anticonvulsant drugs is not necessary but they are often prescribed and are effective at controlling the seizures.
This form of epilepsy resolves after one or two years, and appears to be completely benign.
[2][3] A family history of epilepsy in infancy distinguishes this syndrome from the non-familial classification (see benign infantile epilepsy), though the latter may be simply sporadic cases of the same genetic mutations.
An association with some forms of familial hemiplegic migraine (FHM) has also been found.