What is multifocal epileptiform discharges?

Multifocal. Typically, this term refers to independent discharges occurring in each hemisphere, arising from at least 3 distinct locations that are separated by more than one interelectrode distance.

What do epileptiform discharges mean?

Comment. Periodic epileptiform discharges are an uncommon EEG pattern characterized by lateralized or generalized; periodic or near periodic; or spike, spike-wave, or sharp-wave complex presentations throughout most or all of the recording.

What is IED in EEG?

Abstract. Interictal Epileptiform Dischargers (IEDs), which consists of spike waves and sharp waves, in human electroencephalogram (EEG) are characteristic signatures of epilepsy. Spike waves are characterized by a pointed peak with a duration of 20-70 ms, while sharp waves has a duration of 70-200 ms.

What is the significance of focal epileptiform discharges in the EEG?

Deep learning for detection of focal epileptiform discharges from scalp EEG recordings. Epileptiform Discharges and Frontal Paroxysmal EEG Abnormality Act as Predictive Marker for Subsequent Epilepsy in Children With Complex Febrile Seizures.

What is epileptiform discharge child?

Interictal epileptiform discharges (IEDs), meaning spikes, polyspikes, sharp waves, or spike and slow-wave complexes without observed clinical seizures, are commonly observed in children with epilepsy. Neuropsychological evidence indicates that childhood epilepsy often has negative effects on cognitive function [2].

What is an epileptiform seizure?

Some people experience symptoms similar to those of an epileptic seizure but without any unusual electrical activity in the brain. When this happens it is known as a non-epileptic seizure (NES). NES is most often caused by mental stress or a physical condition. Different types of NES include: Fainting.

What is Interictal psychosis?

Interictal psychosis (IIP) refers to psychosis that occurs in clear consciousness in persons with epilepsy (PWE) with temporal onset not during or immediately following a seizure. The pooled prevalence estimate of psychosis in PWE is 5.6%.

What is a psychotic seizure?

Epileptic psychoses reflect a fundamental disruption in the fidelity of mind and occur during seizure freedom or during or after seizures. The psychotic symptoms in epilepsy share some qualities with schizophrenic psychosis, such as positive symptoms of paranoid delusions and hallucinations.

How are epileptiform discharges a problem in epilepsy?

However a huge problem in epilepsy right now is that the epileptiform discharges are not well understood, it has been thought they could be there to prevent seizures. Some research has shown that these discharges can effect brain function.

Can you drive with interictal epileptiform discharge?

Try looking up interictal epileptiform discharges (IEDs) or interictal spikes. They not necessarily the cause for his learning disability, I’ve just seen some research about a correlation. If he is not having seizures he will be legally allowed to drive, and will also most likely not be surgical candidate.

What are the different types of focal epilepsy?

FOCAL EPILEPSY. Patients with focal epilepsy have focal seizure types, and may have typical interictal and/or ictal EEG findings that accompany focal seizure types (such as focal sharp waves or focal interictal slowing). Imaging showing a focal structural brain abnormality may be supportive, although patients with genetic etiologies…

Are there IEDs in frontal and parietal epilepsies?

Frontal, parietal, and occipital epilepsies tend to have fewer identifiable epileptiform discharges with scalp EEG recording ( Verma and Radtke, 2006 ). IEDs are almost invariably surface negative and are localized by principles of electrophysiologic polarity.