Absence seizure

Common card · No. 218125

Absence seizures are one of several kinds of generalized seizures. Absence seizures are characterized by a brief loss and return of consciousness, generally not followed by a period of lethargy (i.e., without a notable postictal state). Absence seizures are most common in children. They affect both sides of the brain. In the past, absence epilepsy was referred to as "pyknolepsy," a term derived from the Greek word "pyknos," signifying "extremely frequent" or "grouped". These seizures are sometimes referred to as petit mal seizures (from the French for "little illness", a term dated to the late 18th century); however, usage of this terminology is no longer recommended. Childhood absence epilepsy represents a significant portion, accounting for approximately 10 to 17% of all cases of childhood-onset epilepsy, establishing it as the most common form of pediatric epilepsy. This syndrome is characterized by frequent but brief staring spells. These episodes typically commence between the ages...

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