Epilepsy is a chronic brain disorder caused by various etiologies, characterized by repetitive, episodic, and transient central nervous system dysfunction due to abnormal and excessively synchronized discharges of brain neurons. The clinical manifestations of childhood epilepsy are complex and varied, commonly including loss of consciousness, localized or generalized muscular rigidity or clonic convulsions, and sensory abnormalities; there may also be abnormal behaviors, emotional and perceptual disturbances, memory changes, and autonomic nervous system dysfunction.