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67 Possible Causes for Focal Epileptiform Discharges, lt 25 hz spike and slow waves

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  • Epilepsy

    waves.[] The cellular neurophysiologic correlate of an interictal focal epileptiform discharge in single cortical neurons is the paroxysmal depolarization shift (PDS).[] […] and slow waves); (d) occurrence at any age in childhood and adulthood; (e) frequently demonstrable aetiology (tumor, vascular); and (f) no progressive evolution of the syndrome[]

  • Neonatal Seizures

    Drugs. 2016 Apr;76(6):647-61. doi: 10.1007/s40265-016-0554-7. Author information 1 Pharmacodelivery group, School of Pharmacy, University College Cork, Cork, Ireland. 2 Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland. 3 Irish Centre for Fetal and Neonatal Translational Research, University[…][]

  • Hypoxic-Ischemic Brain Injury

    Ictal In the presence of focal seizures, focal rhythmic epileptiform discharges are seen, showing spatial correlation with the area of brain injury from which focal seizures[] […] tumors increases the possibility of detection of epileptiform discharges) 16.[] Epileptiform discharges can coexist with focal slow activity produced by brain tumors, especially slow growth (the least destruction of the brain parenchyma with slow growth[]

  • Childhood Absence Epilepsy

    During the seizure, there is a generalized synchronization of neuronal firing mediated by thalamic circuits, which produces a rhythmic 3 Hz spike and slow-wave discharge in[] Few reports are available of ictal recordings in patients with benign focal epileptiform discharges.[] Among 214 patients with benign focal epileptiform discharges, 5 patients were identified with recorded EEG seizures (2.3%).[]

  • Focal Epilepsy - Speech Disorder - Mental Retardation

    […] and slow-wave discharge indicated by EEG and the discharge index during slow wave sleep 85%; d. local lesions or extensive spike and slow waves in waking state indicated[] Inclusion criteria were: (1) focal seizures or apparently generalized seizures and focal EEG epileptiform discharges; (2) further occurrence of atypical absences, and myoclonic[] The EEG data can show an atypical morphology of epileptiform discharges, an abnormal background, unusual location, and focal or bilateral synchronous discharges, including[]

  • 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.[] "Focal frontal epileptiform discharges in a patient with eyelid myoclonia and absence seizures". Epilepsy Behav Case Rep. 4 : 35–7. doi : 10.1016/j.ebcr.2015.06.006.[] EEG shows classical generalized 3 Hz spike-and-slow-wave discharges.[]

  • 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[] The aim of this work is to investigate focal interictal epileptiform discharges (IEDs) in IGEs, and their relation to clinical variables.[] Panayiotopoulos et al. (1994) [21] observed that 51.5% of patients had spike/multiple spike-slow wave discharges.[]

  • Absence Seizure

    Ictal - EEG is of slow (less than 2.5 Hz) spike and slow wave.[] discharges.[] 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[]

  • Familial Infantile 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[] Interictal EEGs in the active phase were either normal or showed focal epileptiform discharges in posterior or central regions.[] Ictal EEG Generalized polyspike or spike and slow-wave discharges.[]

  • 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[] Generalized seizures arise from discharges in both hemispheres, whereas focal seizures begin with discharges in one hemisphere.[] Seizures may be classified as generalized or focal.[]

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