Spikes and sharp waves usually are abnormal. They occur in the temporal regions, often switching from side to side. They do not have slow-following waves as do most of the pathologic spikes of epilepsy. Numerous artifacts resemble spikes, but they are distinguished by other waves that may be present, by observation of the patient while they are occurring, and by experience. They occur in the occipital regions bilaterally during sleep.
BETS are rare in children but are more frequent in adults and elderly persons.
Although they can occur in epileptic patients, BETS often are seen in individuals without epilepsy and can be regarded as a probable normal variant. Medicine is a constantly changing science and not all therapies are clearly established. New research changes drug and treatment therapies daily. However, as medical science is constantly changing and human error is always possible , the authors, editors, and publisher or any other party involved with the publication of this article do not warrant the information in this article is accurate or complete, nor are they responsible for omissions or errors in the article or for the results of using this information. The reader should confirm the information in this article from other sources prior to use.