The long term outcome of neonatal seizures depends on many factors with the more important ones being cause of the seizures, severity, and degree of brain disturbance/injury. For some infants as is the case of your daughter, no cause is ever found despite an extensive workup. The most common causes are lack of oxygen at birth, brain hemorrhage, infection, stroke, electrolyte disturbances and genetic abnormalities. Drug withdrawal is also a cause in some populations. I'm glad that she;s done well so far, but I would continue to observe her closely and make sure she follows up with a pediatric neurologist, preferrably with an epilepsy specialist. Good luck.