An absence seizure is the term for a type of seizure involving staring spells. This type of seizure is a brief (usually less than 15 seconds) disturbance of brain function due to abnormal electrical activity in the brain.
Seizure - petit mal; Seizure - absence; Petit mal seizure; Epilepsy - absence seizure
Seizures result from overactivity in the brain. Absence seizures occur most often in people under age 20, usually in children ages 4 to 12.
In some cases, the seizures are triggered by flashing lights or when the person breathes faster and more deeply than usual (hyperventilates).
They may occur with other types of seizures, such as generalized tonic-clonic seizures (grand mal seizures), twitches or jerks (myoclonus), or sudden loss of muscle strength (atonic seizures).
Most absence seizures last only a few seconds. They often involve staring episodes. The episodes may:
Unexplained difficulties in school and learning difficulties may be the first sign of absence seizures.
During the seizure, the person may:
The person usually does not fall during the seizure.
Right after the seizure, the person is usually:
Specific symptoms of typical absence seizures may include:
Some absence seizures begin slower and last longer. These are called atypical absence seizures. Symptoms are similar to regular absence seizures, but muscle activity changes may be more noticeable.
Treatment for absence seizures includes medicines, changes in lifestyle for adults and children, such as activity and diet, and sometimes surgery. Your doctor can tell you more about these options.
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