Epileptic seizures are recurring, reflex seizures due to an epilepsy syndrome or brain / central nervous system injury. They may be classified as focal (in one cerebral hemisphere) or generalized (both cerebral hemispheres). Some seizures may begin as focal seizures but become generalized. Reflex seizures may be precipitated by sensory stimulus such as flashing or bright lights, music, or patterns, or by stress, lack of sleep, fatigue, or fever.
Other types of seizures include benign neonatal seizures, febrile seizures, and drug-induced seizures. A variety of epilepsy syndromes are linked to genetic mutations and may have onset in childhood, adolescence, or adulthood.
Psychogenic nonepileptic seizures are sudden episodic disturbances that resemble epileptic seizures but are induced by emotional and stress-related events. Also called pseudoseizures, psychogenic seizures, or nonepileptic events, they fall under the category of somatoform symptom disorders or conversion disorders.
Management of seizures depends on the cause, type, and severity of seizures.
Additional related topics:
G40.89 – Other seizures
128613002 – Seizure disorder