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296 Possible Causes for Abnormal Spikes, Spike-and-Slow-Waves

  • Epilepsy

    […] predominance, and multifocal spike-and-slow waves.[ncbi.nlm.nih.gov] (spikes and slow waves); (d) occurrence at any age in childhood and adulthood; (e) frequently demonstrable aetiology (tumor, vascular); and (f) no progressive evolution of[medlink.com] Electroencephalography showed spike-slow waves and slow waves with mixed asynchronized spike waves originating from the frontal lobe during the sleep stage.[ncbi.nlm.nih.gov]

  • Juvenile Myoclonic Epilepsy

    The spike-peak and slow-wave onset phases did not show a consistently dominant outflow region.[ncbi.nlm.nih.gov] We compared the occurrence and involvement of posterior electrodes for focal abnormalities and generalised spike-wave activity in the EEG outside photic stimulation between[ncbi.nlm.nih.gov] […] discharges on electroencephalography, and a lack of focal abnormality on magnetic resonance imaging (MRI).[ncbi.nlm.nih.gov]

  • Generalized Clonic or Tonic-Clonic Seizures

    , 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 pattern.[en.wikipedia.org] Jerk-locked premyoclonus spikes Hand tremor Neuronal loss in central nervous system Cutaneous photosensitivity Hyperreflexia Heterogeneous Weight loss Dystonia Splenomegaly[mendelian.co] Abnormal asymmetry in benign epilepsy with unilateral and bilateral centrotemporal spikes: a combined fMRI and DTI study.[frontiersin.org]

  • Benign Adult Familial Myoclonic Epilepsy

    […] and slow wave seen in at least 85% of slow-wave sleep.  Characterized by a hallmark EEG presentation, called continuous spike and-wave during sleep (CSWS) or electrical[slideshare.net] Landau-Kleffner Syndrome and Continuous Spike wave in slow wave sleep: The epileptiform abnormalities seen during sleep EEG in these children is markedly increased compared[epilepsyfoundationmn.org] EEG shows generalized spike waves and polyspike waves, early photosensitivity, and focal abnormalities.[euroformhealthcare.biz]

  • Myoclonic-Astatic Epilepsy

    EEG showed long sequences of slow spike-wave activity and half the patients had spike and slow wave foci.[ncbi.nlm.nih.gov] The type of abnormal activity is called ‘spike and wave’ or ‘polyspike and wave’. Children with myoclonic-astatic epilepsy are not usually photosensitive.[epilepsy.org.uk] EEG abnormality is enhanced by sleep deprivation and by sleep. Generalized spike-and-wave often becomes fragmented with sleep deprivation or in sleep.[medlink.com]

  • West Syndrome

    […] and slow-wave activity ( Gibbs and Gibbs 1952 ).[medlink.com] Brain MRI revealed no abnormal findings although interictal EEG demonstrated left centro-parieto-temporal localized spike foci.[ncbi.nlm.nih.gov] The patient was followed up to 13 years of age, and at the last examination was shown to have severe speech delay, seizures, and continuous spike-and-wave activity on EEG.[ncbi.nlm.nih.gov]

  • Idiopathic Generalized Epilepsy

    Panayiotopoulos et al. (1994) [21] observed that 51.5% of patients had spike/multiple spike-slow wave discharges.[annalsofian.org] […] during tonic phase; bursts of spikes and slow waves during clonic phase 70% are seizure -free under treatment In some cases, no medical therapy is necessary avoid triggers[amboss.com] Abstract Magnetic resonance imaging (MRI) techniques have been used to quantitatively assess focal and network abnormalities.[ncbi.nlm.nih.gov]

  • 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.[ncbi.nlm.nih.gov] Although focal spikes can occur, if they consistently arise in 1 area, consider structural brain abnormality. Caution . If slow spike-and-wave ( Imaging.[medlink.com] The electroencephalogram (EEG) can show focal and generalised abnormalities (sharp waves, spikes or spike and slow waves).[epilepsy.org.uk]

  • Encephalopathy

    […] and paroxysmal bursts of sharp and slow waves, these drugs increase epileptiform activity in known epileptic patients, clozapine increase bilateral spike waves discharges[slideshare.net] Structural abnormalities can often be seen on cranial MRI.[orpha.net] .  Asynchronous slow waves and higher amplitude and low frequencies.  *. Burst of bisynchronous slow waves.  *. Rhythmical un-reactive alpha or theta coma.  *.[slideshare.net]

  • Uremic Encephalopathy

    […] discharges (PLEDS). [37] In hypokalemia, diffuse slow activity can be seen together with paroxysmal delta/theta activity, as well as focal paroxysms of sharp waves and spike-waves[neurologyindia.com] Preterminally, the patient becomes immobile and mute. 43 Investigation of dialysis dementia Abnormalities in EEG may precede clinically overt symptoms by up to 6 months.[jnnp.bmj.com] ., frontal intermittent rhythmic delta activity (FIRDA), or spikes and sharp waves as well as spike-wave discharges in temporal regions. [37] In hyponatremia, EEG detects[neurologyindia.com]

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