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16 Possible Causes for lt 25 hz spike and slow waves, Paroxysmal Activity - Spike-and-Slow-Wave Occipital

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  • 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] EEG shows classical generalized 3 Hz spike-and-slow-wave discharges.[medlink.com] […] seen in children, are characterized by a sudden and brief absence of consciousness lasting up to 20 seconds, with intense neuroelectrical activities in the brain, called spike-and-slow[dovemed.com]

  • Epilepsy

    waves.[ncbi.nlm.nih.gov] Cigdem Inan Akman, Nonconvulsive Status Epilepticus and Continuous Spike and Slow Wave of Sleep in Children, Seminars in Pediatric Neurology, 17, 3, (155), (2010).[doi.org] […] unremarkable and electroencephalograms showed high voltage 200-400uV, 2-2.5 Hz generalized spike-and-waves and polyspikes with alternating frontal predominance, and multifocal spike-and-slow[ncbi.nlm.nih.gov]

  • 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[en.wikipedia.org]

  • Juvenile Myoclonic Epilepsy

    We applied dipole modeling and brain distributed source analysis to find current sources comprising spikes and slow waves of polyspike and wave complexes (PSWC) in patients[ncbi.nlm.nih.gov] Each SWD was divided into six distinct temporal phases: spike onset, spike peak, slow-wave onset, slow-wave ascending, slow-wave peak, and slow-wave descending phases.[ncbi.nlm.nih.gov] The discharge is frequently short and fragmented, the spike and slow wave complexes show interdischarge frequency variations with multiple spikes and other characteristics[neurologyindia.com]

  • Myoclonic-Astatic Epilepsy

    EEG showed long sequences of generalised irregular spike and slow waves.[ncbi.nlm.nih.gov] The interictal EEG revealed frequent bursts of generalized 100-200 μV, 2-4 Hz spike-and-slow-wave complexes.[ncbi.nlm.nih.gov] . • EEG shows frequent generalized discharges of spike/polyspike-slow wave at varying frequencies of 2.5 to 3 Hz or higher. • Differential diagnosis is often demanding and[medlink.com]

  • Benign Adult Familial 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[slideshare.net] 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[reference.medscape.com] Ten- to 16-Hz rapid spikes with slow waves occur with myoclonic seizures, photosensitivity is common, and abnormalities may occur in sleep. 3.1.7.[euroformhealthcare.biz]

  • West Syndrome

    […] and slow-wave activity ( Gibbs and Gibbs 1952 ).[medlink.com] Interictal EEG displays diffuse and asynchronous high voltage spikes and slow waves suggesting the hypsarrhythmic pattern. B.[bmcneurol.biomedcentral.com] It associates IS with a typical EEG pattern called hypsarrhythmia consisting of random, high-voltage, nonsynchronous spikes and slow waves and developmental delay.[nature.com]

  • 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[amboss.com] Panayiotopoulos et al. (1994) [21] observed that 51.5% of patients had spike/multiple spike-slow wave discharges.[annalsofian.org] […] comorbidities Epilepsy with tonic-clonic seizures alone 14–20 years Tonic-clonic seizures shortly after awakening or during relaxation Fast spikes during tonic phase; bursts of spikes[amboss.com]

  • Early Infantile Epileptic Encephalopathy Type 6

    […] and slow wave pattern of 1.5 to 2 Hz, [and it has] different seizure types.[neurologylive.com] Four children had generalized spike and slow wave or polyspike and slow wave.[neurology.org] […] an epileptic encephalopathy—[it’s] very, very difficult to control the condition—that’s characterized by an abnormal pattern on the EEG [electroencephalogram] with a slow spike[neurologylive.com]

  • Encephalopathy

    Encephalopathy is a condition that affects the functioning of the brain. Such a condition can result from either direct injury to the brain or due to certain other disease conditions. Altered mental state is the major symptom of encephalopathy. In addition, affected individuals will also experience confusion,[…][symptoma.com]

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