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259 Possible Causes for Focal Sharp-Waves or Spikes Occipital or Temporal, Generalized Spike-and-Slow-Waves, Paroxysmal Activity - Sharp-Waves

  • Epilepsy

    Electroencephalography (EEG) showed progressively slowed background activity and sporadic generalized spike-and-wave discharges.[ncbi.nlm.nih.gov] […] background, diffusemultifocal sharp waves and sharp waves-slow waves; paroxysmal fast activity Neurological examination mild diffuse hypotonia, mild ataxia with wide based[ncbi.nlm.nih.gov] Neuroimaging studies were unremarkable and electroencephalograms showed high voltage 200-400uV, 2-2.5 Hz generalized spike-and-waves and polyspikes with alternating frontal[ncbi.nlm.nih.gov]

  • Benign Adult Familial Myoclonic Epilepsy

    , high-amplitude spike and slow-wave complexes 3.5 Hz, typically 4 s duration.  Absence seizures in JAE are more sporadic.  EEG is slightly faster with generalized spike[slideshare.net] Alvarez and Lombroso reported hypnagogic paroxysmal spike wave activity (minimal epileptiform features, sharp waves embedded into hyperventilation, or hypnagogic hypersynchrony[euroformhealthcare.biz] Generalized slow spikes and waves may be present as an interictal pattern, as in Lennox-Gastaut syndrome.[reference.medscape.com]

  • Encephalopathy

    […] delta bursts, that is called as paradoxical arousal response 18. * Background slowing * Increased theta delta activity * Paroxysmal sharp waves * Theta bursts * Delta bursts[slideshare.net] *Repetitive and fairly stereotyped waveforms appearing at regular intervals, sharps/spike waves or complex discharges.[slideshare.net] […] 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]

  • Lennox-Gastaut Syndrome

    The semiology of seizures progressively changed to generalized episodes of hypertonia and myoclonus, with slow spike-wave electroencephalographic activity.[ncbi.nlm.nih.gov] Interictal EEG showed findings characteristic of LGS: generalized slow spike-wave complexes, multifocal sharp waves, generalized polyspikes and paroxysmal fast activity during[ncbi.nlm.nih.gov] In fact, 10/24 cases showed normal sleep transients with presence of symmetric vertex sharp waves in stage 1 non-REM sleep and also symmetric and well structured sleep spindles[omicsonline.org]

  • 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] ., 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] […] diffuse slowing in the theta range, followed by paroxysmal delta activity and FIRDA or periodic delta waves, as well as the occurrence of periodic lateralized epileptiform[neurologyindia.com]

  • Early Infantile Epileptic Encephalopathy Type 3

    EEG demonstrates primarily burst-suppression patterns in the neonatal period, hypsarrhythmia in infancy, and slow generalized spike-wave discharges in early childhood.[fortheloveofbubbe.weebly.com] ., multifocal spike- and sharp-wave discharges, repetitive paroxysmal activity, unusually low-voltage fast activity, and findings consistent with complex partial seizures[graphyonline.com] slow spike-and-wave discharges Affected LGS patients have different degrees of developmental delay and they often develop autism and intellectual disability 43 Patients react[centogene.com]

  • Toxic 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] ., 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] […] diffuse slowing in the theta range, followed by paroxysmal delta activity and FIRDA or periodic delta waves, as well as the occurrence of periodic lateralized epileptiform[neurologyindia.com]

  • Rolandic Epilepsy

    The EEG findings include slow, diphasic, high-voltage, centrotemporal spikes, often followed by slow waves.[doi.org] The electroencephalographic hallmark, a prerequisite of diagnosis, are blunt high-voltage characteristically shaped centrotemporal spikes (CTS), often followed by slow waves[journals.plos.org] EEG shows high-voltage centrotemporal spikes often followed by a slow wave.[emedicine.com]

  • 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] According to "Harrisons Manual of Medicine," the EEG during the tonic phase will show a "progressive increase in low-voltage fast wave activity, followed by generalized high-amplitude[en.wikipedia.org]

    Missing: Paroxysmal Activity - Sharp-Waves
  • Juvenile Myoclonic Epilepsy

    […] multiple spike and spike slow wave discharges (in an untreated patient).8 The possible factors responsible for the delay in the diagnosis of JME were studied retrospectively[neurologyindia.com] slow wave discharges.[en.wikipedia.org] […] high frequency (10-16 Hz) spikes, usually followed by slow waves in a frequency of 2,5-5Hz [ 8 ].[omicsonline.org]

    Missing: Paroxysmal Activity - Sharp-Waves

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