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14 Possible Causes for 3-6 Hz Polyspikes, Involuntary Movements, lt 25 hz spike and slow waves

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  • Juvenile Myoclonic Epilepsy

    Interictal electroencephalography (EEG) displays 3-6 Hz spike/polyspike and wave pattern. Photosensitivity is common.[] 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[] […] characterized by abrupt, repetitive, stereotyped and involuntary movements (motor tics) or sounds (phonic tics).[]

  • Epilepsy

    waves.[] It is characterized by recurrent seizures, which are brief episodes of involuntary movement that may involve a part of the body (partial) or the entire body (generalized),[] A seizure is a sudden episode of electrical activity in the brain that can cause involuntary movements and behavior changes. 30 to 50 percent of children with cerebral palsy[]

  • Idiopathic Generalized Epilepsy

    5 Hz polyspikes and waves with frontocentral predominance Interictal EEG : 4–6 Hz bilateral polyspike and slow wave Responds well to antiseizure drug therapy; seizures become[] Panayiotopoulos et al. (1994) [21] observed that 51.5% of patients had spike/multiple spike-slow wave discharges.[] […] 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[]

  • Juvenile Absence Epilepsy

    5 Hz polyspikes and waves with frontocentral predominance Interictal EEG : 4–6 Hz bilateral polyspike and slow wave Responds well to antiseizure drug therapy; seizures become[] All patients had minimum twice EEG recordings and all had typical 3-Hz generalized spike and slow-wave discharges at least on one EEG.[] They are characterized by single or repetitive, bilateral, abrupt, symmetric, arrhythmic, involuntary movements, predominantly involving the shoulders and arms; however, they[]

  • Benign Adult Familial Myoclonic Epilepsy

    The EEG reveals 4 to 6 Hz bilateral symmetric polyspike-wave complexes or 2-3 Hz spike wave complexes. Photosensitivity is common ( 70%).[] […] 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[] There is a presentation of clinically-focused information regarding the full spectrum of neurological and psychiatric conditions characterized by involuntary movements.[]

  • 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[] movements Blepharospasm Limb ataxia Pontocerebellar atrophy Parkinsonism EEG with polyspike wave complexes Lafora bodies Morning myoclonic jerks Scoliosis Delayed speech[] movements Plagiocephaly Athetosis Sarcoma Abnormal lung lobation Abnormality of the upper limb Duodenal atresia Acute leukemia Multiple renal cysts Abnormality of the skull[]

  • West Syndrome

    […] and slow-wave activity ( Gibbs and Gibbs 1952 ).[] Tourette Syndrome (TS) is a life-long inherited neuropsychiatric disorder that causes involuntary movements and sounds in patients.[] We did one with Jack (T21) as an infant for atyipical movement, but it was diagnosed as stereotypy.[]

  • 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[] movements AD 4 GRIN2B 138252 mental retardation- 6; early infantile epileptic encephalopathy 27 AD 19 GUF1 617064 early infantile epileptic encephalopathy, 40 AR 3 HCN1 602780[] […] 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

    These are known as involuntary movements . During this stage, breathing resumes and a normal colour returns to the child s face.[] Absence seizures Absence seizures are also known as petit mal attacks, which are episodes of loss of consciousness without falling or involuntary movements.[]

  • Familial Progressive Myoclonic Epilepsy

    .  EEG - diffuse slow background activity and generalised high-voltage spike and wave, and polyspike and wave paroxysms, ranging from 2–3 Hz to 4–6 Hz, which reach a maximum[] This volume focuses on Parkinsonism and dyskinesia, a condition characterized by abnormal involuntary movements.[] Key Words : Cherry-red spot ; Lysosomal storage disease ; Myoclonus Myoclonus is a clinical sign characterized by sudden, brief, shock-like, involuntary movements. 1 Myoclonic[]

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