Benign familial neonatal convulsions.

Two siblings had frequent seizures from the second and third day of life until one week and seven months, respectively. The mother, grandmothers, and three other family members were similarly affected. Known causes of neonatal seizures were excluded. The condition is inherited as an autosomal dominant trait. Its etiology is unknown but the prognosis is good. The condition should be included in the differential diagnosis of neonatal seizures.