Absence Seizures
What type of seizure is also known as "Petit Mal"?
Simple Absence
What does "myo" and "clonic" mean?
Myo-muscle
Clonic-jerking
What are the two main phases of a GTC?
Tonic phase and clonic phase
At what age does JME usually begin?
During adolescence
What is another name for Atonic Seizures?
Drop attacks
What is the typical EEG finding of an Absence Seizure?
Generalized 3hz spike and wave pattern
What type of muscle contractions are seen in Myoclonic seizures?
Brief, shock-like involuntary contractions
Wha happens to the EEG activity during the tonic phase?
Low-amplitude fast activity that increases in amplitude
What percentage of JME patient have Myoclonic Seizures?
100%
What happens to the body during an Atonic Seizure?
Muscles suddenly go limp
What kind of automatisms are often associated with Complex Absence Seizures?
Blinking, lip-smacking or hand movements
What stimuli can often precipitate Myoclonic seizures?
Photic stimulation or sleep deprivation
What clinical sign often marks the beginning of a Tonic-Clonic seizure?
Ictal cry
When do JME seizures most commonly occur?
Within 2 hrs of awakening
What syndrome is commonly associated with Atonic seizures?
LGS
What percentage of Absence Seizures patients typically grow out of it?
About 50%
What is the typically EEG finding during a Myoclonic seizure?
Fast spike and wave discharges (>3Hz)
What does the Postictal EEG show after a GTC
Postictal slowing (PDA)
What EEG finding is most characteristic of JME?
Polyspike and wave discharges >3hz
What type of EEG activity might you see during Atonic Seziures?
Slow spike and wave or polyspike-wave
During what state does Absence Seizure activity usually fragment?
During sleep
What is one example of progressive myoclonic epilepsy syndrome?
Lafora Disease, Batten's Disease, or Dravet Syndrome
What are two possible outcomes during the clonic phase?
Tongue biting or loss of bladder/bowel control
What percentage of JME patient also experience GTC seizures?
90%
What childhood syndrome is characterized by hypsarrhythmia and infantile spasms?
West Syndrome