Everything about Non-epileptic Seizure totally explained
Non-epileptic seizures are
paroxysmal events that mimic an
epileptic seizure but don't involve abnormal, rhythmic discharges of cortical
neurons. They are caused by either
physiological or
psychological conditions. The latter is discussed more fully in
psychogenic non-epileptic seizures.
Types
Reflex anoxic seizures are a condition of the brain where the child may become pale and limp and cease breathing, only to recover a short time later. Anoxic seizures are caused by a reflex asystole of the heart due to increased vagal responsiveness. They are non-epileptic.
Misdiagnosis
A wide spectrum of phenomena may resemble epileptic seizures, which may lead to people who don't have
epilepsy being misdiagnosed. Indeed, a significant percentage of people initially diagnosed with epilepsy will later have this revised. In one study, the majority of children referred to a secondary clinic with "fits, faints and funny turns" didn't have epilepsy, with syncope (fainting) as the most common alternative. In another study, 39% of children referred to a tertiary epilepsy centre didn't have epilepsy, with staring episodes in
mentally retarded children as the most common alternative. In adults, the figures are similar, with one study reporting a 26% rate of misdiagnosis.
Terminology
The International League Against Epilepsy (ILAE) define an
epileptic seizure as "a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain." Epileptic seizures can occur in someone who doesn't have epilepsy – as a consequence of
head injury, drugs, toxins,
eclampsia or
febrile convulsions, for example.
Medically, when used on its own, the term
seizure implies an
epileptic seizure. The lay use of this word can also include sudden attacks of illness, loss of control, spasm or stroke.
Migraine
Narcolepsy
Non-epileptic myoclonus
Opsoclonus
Parasomnias, including night terrors
Paroxysmal kinesiogenic dyskinesia
Repetitive or ritualistic behaviours
Syncope (fainting)
TicsFurther Information
Get more info on 'Non-epileptic Seizure'.
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