Syndromes

When a disorder is defined by a characteristic group of features that usually occur together, it is called a syndrome. These features may include symptoms, which are problems that the person can notice. They also may include signs that the doctor finds during the examination or with laboratory tests. Doctors and healthcare professionals often use syndromes to describe a person's epilepsy.
Epilepsy syndromes are defined by a cluster of features. These features may include:

• Type or types of seizures

• Age at which the seizures begin

• Causes of the seizures

• Whether the seizures are inherited

• The part of the brain involved

• Factors that provoke the seizures

• How severe and how frequent the seizures are

• A pattern of seizures by time of day

• Certain patterns on the EEG (electroencephalogram), during and between seizures

• Brain imaging findings, for example, MRI (magnetic resonance imaging) or CT (computed tomography) scan

• Genetic information

• Other disorders in addition to seizures

• The prospects for recovery or worsening

Not every syndrome is defined by all of these features, but most syndromes will be defined by several of them. Classifying a person's epilepsy as belonging to a certain syndrome often provides information on what medications or other treatments will be most helpful. It also may help the doctor predict whether the seizures will go into remission (lessen or disappear).