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31 Possible Causes for Electroencephalogram Abnormal, Paroxysmal Activity - Sharp-Waves

  • Epilepsy

    Electroencephalogram findings were described in eleven, and nine (82%) showed epileptiform abnormalities.[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] Electroencephalograms (EEGs) measure electrical activity in the brain, helping to pinpoint which part of the brain is affected.[aurorahealthcare.org]

  • Rolandic Epilepsy

    An electroencephalogram (EEG) shows abnormal electrical activity involving the entire brain at once.[verywell.com] An electroencephalogram (EEG) detects abnormalities in the brain waves or electrical activity of the brain.[snowflakesofwinter.wordpress.com] These may be visualized in an electroencephalogram.[symptoma.com]

  • Creutzfeldt Jakob Disease

    The brainwave pattern observed during an electroencephalogram is abnormal in most vCJD patients.[web.archive.org] Periodic sharp-wave complexes were not observed on the electroencephalogram. Brain diffusion MRI did not reveal abnormal changes.[ncbi.nlm.nih.gov] An electroencephalogram (EEG) can reveal abnormal electrical impulses. A CT scan or MRI can rule out stroke as a cause of symptoms.[medicalnewstoday.com]

  • Temporal Lobe Epilepsy

    In fact, 90% of patients with temporal interictal epileptiform abnormalities on their electroencephalograms (EEGs) have a history of seizures.[emedicine.medscape.com] , including the slow-wave complex, polyspikes, runs of rapid spikes, sharp waves, sharp-and-slow-wave complex, slow sharp waves, spikes and spike and slow waves.[jove.com] Use both interictal paroxysmal and ictal activities to approximately locate the ictogenic areas by identifying the electrodes/channel where epileptogenic elements appear 23[jove.com]

  • Focal Onset Impaired Awareness Seizure

    Electroencephalogram (EEG) monitoring is performed to detect abnormalities in the electrical activity of the brain.[britannica.com] One week later, an EEG during a similar absence attack showed sharp waves arising from the left frontoparietal area (fig 2 ).[jnnp.bmj.com] An EEG (electroencephalogram) will be done to check the electrical activity in the brain. People with seizures often have abnormal electrical activity seen on this test.[nlm.nih.gov]

  • Encephalopathy

    DIAGNOSES: After suffering for almost 8 years, the patient was diagnosed with HE based on clinical manifestation, abnormal electroencephalogram, unusual MRI findings, sensitivity[ncbi.nlm.nih.gov] […] 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] […] or damage electroencephalogram (EEG) test to measure the electrical activity in your brain The treatment for encephalopathy varies depending on what caused it.[healthline.com]

  • Metabolic Encephalopathy

    The following tests may be done: Blood tests—usually show high blood ammonia levels and other abnormalities related to the failing liver Electroencephalogram ]] (EEG)—may[empowher.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] […] or damage electroencephalogram (EEG) test to measure the electrical activity in your brain The treatment for encephalopathy varies depending on what caused it.[healthline.com]

  • Paroxysmal Exertion-Induced Dyskinesia

    CT scan of the brain and electroencephalogram did not show any abnormality. Carbamazepine even upto 800 mg daily, did not produce any benefit.[neurologyindia.com] : interictal (gen spikes/sharps, irregular, asym theta/delta slowing in tonic sz, 3 hz spike-wave, gen paroxysmal fast activity, Hypsarthymia) 3hz spike and wave (interictal[quizlet.com] 70ms, spike and wave, and paroxysmal fast activity (trans of spikes) Name Focal Epileptogenic waves/significance: Occipotal (40% sz), Centro-Temp (rolandic, 70% sz), Temp[quizlet.com]

  • Lennox-Gastaut Syndrome

    abnormalities.[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]

  • Kleine-Levin Syndrome

    General physical and systemic examination revealed no abnormality except for drowsiness at the initial visit.[neurologyindia.com] Rarely, isolated spike discharges ( Elian, 1968 ), self-limited photo-paroxysmal response ( Papacostas, 2003 ) or sharp waves ( Malhotra et al., 1997 ) were observed, but[doi.org] Electroencephalogram (EEG) done 6 days after the onset of episode showed intermittent left temporal slow and sharp waves without electrographic seizures or nonconvulsive status[neurologyindia.com]

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