- Non-epileptic events (also called non-epilepsy seizures) are not caused by electrical activity in the brain.
- One in six people also have epilepsy seizures or has had them in the past.
- Non-epilepsy seizures may be associated with psychological conditions or other physical problems.
What are they?
Events that look like seizures but are not due to epilepsy are called "nonepileptic seizures." A common type is described as psychogenic (si-ko-JEN-ik), which means beginning in the mind. Psychogenic seizures are caused by subconsious thoughts, emotions or 'stress', not abnormal electrical activity in the brain. Doctors consider most of them psychological in nature, but not purposely produced. Usually the person is not aware that the spells are not "epileptic." The term "pseudoseizures" has also been used (mostly in the past) to refer to these events.
It's important to know that some seizures that are not epilepsy could be caused by other physical problems. These are nonepilepsy seizures too, but not caused by a psychological condition. Further testing is needed to find the exact cause so they can be treated properly.
Are they common?
Psychogenic nonepileptic seizures are common. About 20% of the patients referred to comprehensive epilepsy centers for Video-EEG monitoring are found to have nonepileptic seizures. About 1 in 6 of these patients also has epileptic seizures or has had them in the past. Psychogenic nonepileptic seizures have been more widely recognized during the past several decades. They are most often seen in adolescents and young adults, but they also can occur in children and the elderly. They are three times more common in females.
What do they look like?
The seizures most often look like complex partial or tonic-clonic (grand mal) seizures. Family members report episodes in which the patient stiffens and jerks. Doctors rarely witness the actual event, so they are drawn toward the diagnosis of epilepsy. Often years can be spent trying to treat the spells as epileptic seizures without success.
How are they recognized?
Certain kinds of movements and other patterns seem to be more common in psychogenic nonepileptic seizures than in seizures caused by epilepsy. Some of these patterns do occur occasionally in epileptic seizures, however, so having one of them does not necessarily mean that the seizure was nonepileptic. Video-EEG monitoring is the best way of diagnosing nonepileptic seizures. The doctor may take steps to provoke a seizure and then ask a family member or friend to confirm that the event was the same as the usual kind.
Can they be treated?
The good news is that psychogenic nonepileptic seizures can respond to treatment. A psychiatric evaluation helps sort out possible psychological problems and the types of treatment that may be needed. Being diagnosed with psychogenic seizures doesn't necessarily mean that a person has a serious psychiatric disorder. Yet treating the nonepilepsy or psychogenic seizures will involve treating whatever psychological problems may be present.
- Sometimes the episodes stop when the person learns that they are psychological. Learning what the diagnsis means and what it doesn't mean is very important.
- Some people can learn how to control the events with behavioral techniques such as relaxation therapy or other forms of cognitive behavioral therapy.
- Some people have depression or anxiety disorders that can be helped by medication.
- Counseling for a limited time is often helpful. Both individual and family therapy may be recommended.
- People who have both epilepsy and psychogenic nonepilepsy seizures will require seizure medication as well as treatments for the psychogenic events.