Absence seizures

Definition

Absence seizures are a type of generalized seizure characterized by brief, sudden lapses in attention and activity. They typically last a few seconds and are most common in children.

5 Must Know Facts For Your Next Test

1. Absence seizures usually last between 5 to 10 seconds.
2. They often occur multiple times a day.
3. Ethosuximide is the drug of choice for treating absence seizures.
4. Absence seizures are also known as petit mal seizures.
5. EEG findings typically show generalized 3 Hz spike-and-wave discharges.

Review Questions

• What is the typical duration of an absence seizure?
• Which medication is commonly prescribed to treat absence seizures?
• What is the characteristic EEG pattern seen in patients with absence seizures?

Related terms

Generalized Seizures: Seizures that affect both hemispheres of the brain from the onset.

Ethosuximide: A medication used to treat absence seizures by reducing neuronal excitability.

Electroencephalogram (EEG): A diagnostic test that measures electrical activity in the brain and helps identify different types of seizures.