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30 Possible Causes for lt 25 hz spike and slow waves, Slowing with Polyspike-and-Slow-Waves, Spike-and-Slow-Wave or Polyspike-and-Slow-Wave Discharges

Did you mean: lt 25 hz, spike and slow waves, Slowing with Polyspike-and-Slow-Waves, Spike-and-Slow-Wave or Polyspike-and-Slow-Wave Discharges

  • Juvenile Absence Epilepsy

    All patients had minimum twice EEG recordings and all had typical 3-Hz generalized spike and slow-wave discharges at least on one EEG.[] […] variations between the spike/multispike-slow-wave relationships in generalized discharges of spike-polyspike-slow waves. (3) Predominantly brief discharges (shorter than[] […] and waves with frontocentral predominance Interictal EEG : 4–6 Hz bilateral polyspike and slow wave Responds well to antiseizure drug therapy; seizures become less frequent[]

  • Myoclonic-Astatic Epilepsy

    EEG showed long sequences of generalised irregular spike and slow waves.[] Myoclonic-atonic seizures with falls are the defining symptoms. • EEG shows frequent generalized discharges of spike/polyspike-slow wave at varying frequencies of 2.5 to 3[] The interictal EEG revealed frequent bursts of generalized 100-200 μV, 2-4 Hz spike-and-slow-wave complexes.[]

  • Epilepsy

    waves.[] ) discharges or generalized spike wave and polyspike wave activity.[] Cigdem Inan Akman, Nonconvulsive Status Epilepticus and Continuous Spike and Slow Wave of Sleep in Children, Seminars in Pediatric Neurology, 17, 3, (155), (2010).[]

  • Benign Adult Familial Myoclonic Epilepsy

    […] and slow-wave complexes at 3 Hz associated with myoclonus.  Interictal EEG is variable and ranges from normal to background slowing and generalized spike and slow-wave activity[] In 1824, Calmeil used the term absence . [2] In 1935, Gibbs, Davis, and Lennox described the association of impaired consciousness and 3-Hz spike-and-slow-wave complexes on[] Ten- to 16-Hz rapid spikes with slow waves occur with myoclonic seizures, photosensitivity is common, and abnormalities may occur in sleep. 3.1.7.[]

  • Generalized Clonic or Tonic-Clonic Seizures

    […] generalized high-amplitude, poly spike discharges." [2] The clonic phase EEG will show "high amplitude activity that is typically interrrupted by slow waves to create a spike-and-slow-wave[]

  • Juvenile Myoclonic Epilepsy

    We applied dipole modeling and brain distributed source analysis to find current sources comprising spikes and slow waves of polyspike and wave complexes (PSWC) in patients[] Each SWD was divided into six distinct temporal phases: spike onset, spike peak, slow-wave onset, slow-wave ascending, slow-wave peak, and slow-wave descending phases.[] The discharge is frequently short and fragmented, the spike and slow wave complexes show interdischarge frequency variations with multiple spikes and other characteristics[]

  • Idiopathic Generalized Epilepsy

    […] and slow waves during clonic phase 70% are seizure -free under treatment In some cases, no medical therapy is necessary avoid triggers Epilepsy with myoclonic-atonic seizures[] Panayiotopoulos et al. (1994) [21] observed that 51.5% of patients had spike/multiple spike-slow wave discharges.[] Generalized spike-and-wave or polyspike-and-wave is seen in the interictal EEG. Half of the patients have these abnormalities only in sleep. Caution.[]

  • West Syndrome

    […] and slow-wave activity ( Gibbs and Gibbs 1952 ).[] Interictal EEG displays diffuse and asynchronous high voltage spikes and slow waves suggesting the hypsarrhythmic pattern. B.[] It associates IS with a typical EEG pattern called hypsarrhythmia consisting of random, high-voltage, nonsynchronous spikes and slow waves and developmental delay.[]

  • Early Infantile Epileptic Encephalopathy Type 3

    West Syndrome (WS) aka as infantile spasms with hypsarrhythmia, EEG abnormality with asynchronous very high amplitude, irregular, continuous multifocal spike an slow wave[] .  Inter-Ictal EEG  Initial -20% show normal BG with photoparoxysmal discharges of spikes/ polyspikes-slow waves.  Within 1 year, EEG - abnormal slow BG with frequent asymmetrical[] […] or slow waves mainly in the rolandic regions (but may also occur elsewhere) Early myoclonic encephalopathy - Ictal EEG The myoclonia do not have an ictal EEG expression and[]

  • Lennox-Gastaut Syndrome

    Interictal EEG may demonstrate the following characteristics: A slow background that can be constant or transient Awake – Diffuse slow spike wave Non-REM sleep – Discharges[] […] that are more generalized and more frequent, consisting of polyspikes and slow waves REM sleep – Decreased spike waves Ictal EEG may demonstrate the following characteristics[] waves Atonic, massive myoclonic, or myoclonic-atonic seizure – Slow spike waves, polyspike waves, or rapid diffuse rhythms Absence status epilepticus – Continuous spike wave[]

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