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

  • Epilepsy

    […] background, slow generalized spike-wave discharges and multifocal (poly)spikes slow background, left temporal slowing, slow generalized spike-wave discharges, diffuse (poly[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] )spikes not available slow background, diffuse slow spike-wave discharges, sharp waves-slow waves; (poly)spike waves; paroxysmal fast activity slow background, diffusemultifocal[ncbi.nlm.nih.gov]

  • Rolandic Epilepsy

    Although called centrotemporal spikes, these are mainly high amplitude sharp and slow wave complexes localised in the C3/C4 (high central) in 30 % of patients and C5/C6 (low[omicsonline.org] The interictal EEG in Panayiotopoulos syndrome commonly reveals functional, mainly multifocal, high-amplitude sharp- and slow-wave complexes, with great variability at various[emedicine.com] […] central region, midway between central and temporal) electrodes in 70%.[omicsonline.org]

  • Creutzfeldt Jakob Disease

    EEG revealed diffuse and slow activities with periodic sharp-wave complex discharges seen in the right parietal, temporal and occipital lobes.[ncbi.nlm.nih.gov]

  • Fragile X Syndrome

    Prolonged video EEG monitoring revealed interictal left temporal sharp waves and slowing as well as subclinical and clinical seizures, each with left temporal onset. 3T MRI[ncbi.nlm.nih.gov]

  • Lennox-Gastaut Syndrome

    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] Also during sleep interictal background activity may be normal.[omicsonline.org]

  • Early Infantile Epileptic Encephalopathy Type 3

    ., multifocal spike- and sharp-wave discharges, repetitive paroxysmal activity, unusually low-voltage fast activity, and findings consistent with complex partial seizures[graphyonline.com]

  • Encephalopathy

    *Repetitive and fairly stereotyped waveforms appearing at regular intervals, sharps/spike waves or complex discharges.[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]

  • Uremic Encephalopathy

    ., 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] […] 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] […] 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]

  • Toxic Encephalopathy

    ., 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] […] 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] […] 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]

  • Focal Epilepsy - Speech Disorder - Mental Retardation

    Posterior Slow Waves of Youth (Mittens) Sharp delta activity in the posterior head region that is prominent in children and adolescence and attenuates with EO.[studystack.com] , whereas focal sharp waves in centro-temporal or occipital regions have moderate association with clinically active epilepsy.[jnnp.bmj.com] Alvarez and Lombroso reported hypnagogic paroxysmal spike wave activity (minimal epileptiform features, sharp waves embedded into hyperventilation, or hypnagogic hypersynchrony[euroformhealthcare.biz]

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