Create issue ticket

314 Possible Causes for Generalized Polyspikes, Slow-Frequency High-Amplitude Waves with High-Frequency Polyspikes, Variable Psychomotor Retardation

  • West Syndrome

    […] clinical manifestations such as hypotonia, psychomotor retardation, and feeding difficulties.[] The generalized tonic seizures began with bi-frontal polyspikes on EEG. Our diagnosis was lissencephaly presenting with West syndrome and generalized tonic seizures.[] Leigh syndrome (LS) (sub-acute necrotizing encephalomyelopathy) is characterized by symmetric brain lesions occurring mainly in the basal ganglia and associated with variable[]

  • Myoclonic-Astatic Epilepsy

    Analysis of the ictal EEGs showed that all attacks corresponded to the generalized spike or polyspikes-and-wave complexes.[] retardation mainly affecting speech.[] […] spikes or polyspike-wave discharges at 2-3 Hz with an absence of focal spikes; Exclusion of other syndromes, specifically, cryptogenic Lennox-Gastaut syndrome, benign or[]

  • Juvenile Myoclonic Epilepsy

    Generalized tonic-clonic seizures, photosensitivity and generalized polyspike-wave discharges provoked by eye closure are features of both epileptic syndromes.[] Electroencephalograms during these episodes showed almost continuous generalized polyspike-waves in both patients.[] All had generalized spike and wave on the interictal electroencephalogram, and 86% of them also had generalized polyspike and wave discharges.[]

    Missing: Variable Psychomotor Retardation
  • Epilepsy

    Generalized polyspike-slow wave in EEG was common to see in myoclonic seizure and can help to make the classification.[] […] slowing MRI-normal C-VI-7 16 yrs 9 mths 10 yrs GTCS, abs, MJ, FS 9 mths Mild – 6 yrs: generalized slowing 15 yrs: generalized polyspike wave MRI-normal C-VI-8 12 yrs 6 mths[] Electroencephalogram is consistently abnormal, showing findings such as background slowing, multifocal and generalized epileptiform discharges and polyspikes.[]

    Missing: Variable Psychomotor Retardation
  • Benign Adult Familial Myoclonic Epilepsy

    We randomly selected 10 generalized spike/polyspike and wave complexes (GSW) for each BAFME patient and measured the duration of them.[] Electroencephalograms showed generalized spikes or polyspikes and wave complexes, and some patients exhibited photosensitivities.[] The EEG shows generalized polyspike and spike-and-wave discharges, frequently precipitated by photic stimulation.[]

    Missing: Variable Psychomotor Retardation
  • Generalized Clonic or Tonic-Clonic Seizures

    […] spike-and-wave, or generalized polyspike-and-wave complexes.[] EEG: Usually normal background, with generalized spike and wave or generalised polyspike and wave.[] Among the 45 children randomly assigned, 74% had generalized spike, polyspike, and/or generalized spike and wave discharges on routine electroencephalogram recordings; the[]

    Missing: Variable Psychomotor Retardation
  • Idiopathic Generalized Epilepsy

    These patients had no family history of epilepsy, normal neurological evaluation, normal neuroimaging, interictal EEG showing generalized spike- and polyspike-wave discharges[] EEG usually shows bilateral, synchronous generalized spike-and-wave (GSW) or polyspike-and-wave discharges with a normal background.[] EEG shows generalized discharges of spikes, polyspikes, or spike/polyspike-waves either ictally or inter-ictally.[]

    Missing: Variable Psychomotor Retardation
  • Early Infantile Epileptic Encephalopathy Type 17

    […] slowing MRI-normal C-VI-7 16 yrs 9 mths 10 yrs GTCS, abs, MJ, FS 9 mths Mild – 6 yrs: generalized slowing 15 yrs: generalized polyspike wave MRI-normal C-VI-8 12 yrs 6 mths[] EEG recordings showed a variety of changes: generalized spike wave and polyspike wave activity, focal discharges, focal or diffuse slowing or were normal.[]

    Missing: Variable Psychomotor Retardation
  • Juvenile Absence Epilepsy

    An EEG in untreated individuals is typically abnormal with a specific EEG pattern, known as a 3-6 Hz generalized polyspike and wave discharge.[] The EEG has generalized spike or polyspike slow-wave complexes. JAE is a lifelong disorder, although seizures can be controlled in 70% to 80% of patients.[] There may be generalized spike-and-wave, fragments of generalized spike-and-wave, or polyspike-and-wave. Caution .[]

    Missing: Variable Psychomotor Retardation
  • Myoclonic Jerking

    “Electrographically they were time locked with generalized polyspikes on the EEG record,” wrote the authors.[] Photic visual stimuli or touching may trigger myoclonic jerks, which may cause abnormalities on an EEG (eg, focal or generalized spike-and-wave or polyspike-and-wave epileptiform[] Ictal EEG : The myoclonic jerk correlates with a generalized spike-and-wave or polyspike-and-wave.[]

    Missing: Variable Psychomotor Retardation

Similar symptoms