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    Petit mal seizure

    Seizure - petit mal; Absence seizure; Seizure - absence

    A petit mal seizure is the term given to a staring spell. It ismost commonly called an absence seizure. It is a brief (usually less than 15 seconds) disturbance of brain function due to abnormal electrical activity in the brain.

    Causes

    Petit mal seizures occur mostoften in people under age 20, usually in children ages 6 to 12.

    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).

    Symptoms

    Most petit mal seizures last only a few seconds. They often involve staring episodes or absence spells. The episodes may:

    • Occur many times a day
    • Occur for weeks to months before being noticed
    • Interfere with school and learning
    • Be mistaken for lack of attention or other misbehavior

    Unexplained difficulties in school and learning difficulties may be the first sign of petit mal seizures.

    During the seizure, the person may:

    • Stop walking and start again a few seconds later
    • Stop talking in mid-sentence and start again a few seconds later

    The person usually does not fall during the seizure.

    Immediately after the seizure, the person is usually:

    • Wide awake
    • Thinking clearly
    • Unaware of the seizure

    Specific symptoms of typical petit mal seizures may include:

    • Changes in muscle activity, such as no movement, hand fumbling, fluttering eyelids, lip smacking, chewing
    • Changes in alertness (consciousness), such as staring episodes, lack of awareness of surroundings, sudden halt in movement, talking, and other awake activities
    • May be triggered by hyperventilation or flashing lights, in some cases

    Atypical petit mal seizures begin slower and last longer. Symptoms are similar but muscle activity changes may be more noticeable.

    Treatment

    For information on diagnosis and treatment, see:

    • Epilepsy
    • Seizures

    References

    Abou-Khalil BW, Gallagher MJ, Macdonald RL. Epilepsies. In: Daroff RB, Fenichel GM, Jankovic J, Mazziotta JC. Bradley’s Neurology in Clinical Practice. 6th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 67.

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          Tests for Petit mal seizure

            Review Date: 2/27/2013

            Reviewed By: Luc Jasmin, MD, PhD, Department of Neurosurgery, Cedars Sinai Medical Center, Los Angeles and Department of Anatomy, University of California, San Francisco, CA. Review provided by VeriMed Healthcare Network. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, Bethanne Black, Stephanie Slon, and Nissi Wang.

            The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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