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Epilepsy Health Center

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Epilepsy: Myoclonic Seizures - Topic Overview

Myoclonic seizures affect a small number of children and adults with generalized epilepsy of unknown cause (idiopathic). In children and teens with juvenile myoclonic epilepsy, the seizures seem to occur most often after waking up or while falling asleep.

During a myoclonic seizure:

Recommended Related to Epilepsy

Understanding Absence Seizures -- Diagnosis and Treatment

If a seizure condition such as absence seizures is suspected, the doctor will begin by taking a thorough medical history, including information on any birth trauma, serious head injury, or infections of the brain such as encephalitis or meningitis. Brain function can be "viewed" with an electroencephalograph, or EEG, which detects the electrochemical relay of information from brain cell to brain cell. EEGs will show characteristic, abnormal patterns during different types of seizures, including...

Read the Understanding Absence Seizures -- Diagnosis and Treatment article > >

  • The arms, legs, torso, or facial muscles jerk rapidly as though they are being shocked.
  • The body may jerk once or many times, on one or both sides of the body, in a rhythmic or random pattern.
  • The person usually does not lose consciousness.

Myoclonic seizures are almost always very brief.

WebMD Medical Reference from Healthwise

Last Updated: March 12, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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