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1,541 Possible Causes for 3-6 Hz Polyspikes, Lower and Upper Limbs Affected, Myoclonic Jerking

  • Benign Adult Familial Myoclonic Epilepsy

    The EEG reveals 4 to 6 Hz bilateral symmetric polyspike-wave complexes or 2-3 Hz spike wave complexes. Photosensitivity is common ( 70%).[neuroweb.us] By the jerk-locked averaging method, a positive spike time-locked to the myoclonic jerk was demonstrated in four patients before 15-20 msec of myoclonic jerk.[ci.nii.ac.jp] Attacks may last several minutes to half an hour and more frequently affect the lower than upper limbs.[epilepsydiagnosis.org]

  • Myoclonic Jerking

    ., adj myoclon ic. A single myoclonic arm or leg jerk is normal when the person is falling asleep. Myoclonic jerks are severe with grand mal seizures.[medical-dictionary.thefreedictionary.com] Attacks may last several minutes to half an hour and more frequently affect the lower than upper limbs.[epilepsydiagnosis.org] These involuntary jerks are a symptom and not a disease. Myoclonic jerks are usually caused by some type of central nervous system ( brain and spinal cord ) disturbance.[healthblurbs.com]

  • Juvenile Myoclonic Epilepsy

    Interictal electroencephalography (EEG) displays 3-6 Hz spike/polyspike and wave pattern. Photosensitivity is common.[ncbi.nlm.nih.gov] The myoclonic jerks occur rarely in EMA. They are usually mild and are freqently restricted to the upper extremities.[ncbi.nlm.nih.gov] The EEG in untreated individuals is typically abnormal with what is known as a 3-6 Hz generalized polyspike and wave discharge.[epilepsy.com]

    Missing: Lower and Upper Limbs Affected
  • Myoclonic-Astatic Epilepsy

    […] years of age; (3) presence of generalized spike- or polyspike-wave EEG discharges at 2-3 Hz, without focal spike discharges; and (4) exclusion of severe and benign myoclonic[ncbi.nlm.nih.gov] The involvement of these structures might predispose to the typical seizure semiology of myoclonic jerks observed in MAE.[ncbi.nlm.nih.gov] […] years; EEG findings of generalized spikes or polyspike-wave discharges at 2-3 Hz with an absence of focal spikes; Exclusion of other syndromes, specifically, cryptogenic Lennox-Gastaut[symptoma.com]

    Missing: Lower and Upper Limbs Affected
  • Idiopathic Generalized Epilepsy

    5 Hz polyspikes and waves with frontocentral predominance Interictal EEG : 4–6 Hz bilateral polyspike and slow wave Responds well to antiseizure drug therapy; seizures become[amboss.com] Myoclonic-astatic seizures consist of symmetric myoclonic jerks followed by periods of absent muscle tone that can result in falls.[symptoma.com] This epilepsy is characterized by absence seizures concurrent with myoclonic jerks, typically occurring several times daily.[en.wikipedia.org]

    Missing: Lower and Upper Limbs Affected
  • Epilepsy

    So the jerks were considered as cortical origin and generalized myoclonic seizure was confirmed.[ncbi.nlm.nih.gov] GTCS generalized tonic-clonic seizures; TCS tonic-clonic seizures; T tonic; A atonic; H hemiclonic; abs absence; MJ myoclonic jerks; PSSG partial seizures, secondarily generalized[brain.oxfordjournals.org] People with JME can have absence seizures, myoclonic (muscle-jerking) seizures, and generalized tonic-clonic seizures.[everydayhealth.com]

    Missing: Lower and Upper Limbs Affected
  • Early Infantile Epileptic Encephalopathy Type 3

    Both patients had early infantile seizures characterized by fragmentary myoclonic jerks associated with burst-suppression pattern on electroencephalography.[ncbi.nlm.nih.gov] Early Myoclonic Encephalopathy starts in the first 10 days of an infant’s life with erratic small jerks (i.e. myoclonic seizures).[seizuresinfant.com] […] epileptic encephalopathy which began between two days and ten weeks of life. at onset it is associated with: myoclonic jerks, partial fits and periodic paroxysmal EEG abnormalities[semanticscholar.org]

    Missing: Lower and Upper Limbs Affected
  • Lennox-Gastaut Syndrome

    In such cases, massive myoclonic jerks, myoclonic-atonic attacks, as well as atonic seizures may occur, though much less frequent and severe than the other manifestations.[epilepsyontario.org] Lennox and Davis first correlated the slow spike-and-wave EEG pattern with a distinctive group of clinical manifestations including specific seizure types (myoclonic jerks[medlink.com] [[sturge_weber_center]] Juvenile Myoclonic Epilepsy People with juvenile myoclonic epilepsy (JME) have myoclonic seizures, characterized by small, rapid jerks of the arms,[hopkinsmedicine.org]

    Missing: Lower and Upper Limbs Affected
  • Juvenile Absence Epilepsy

    5 Hz polyspikes and waves with frontocentral predominance Interictal EEG : 4–6 Hz bilateral polyspike and slow wave Responds well to antiseizure drug therapy; seizures become[amboss.com] A total of 33 patients (47%) also had myoclonic jerks with a mean age at onset of 16 years.[medlink.com] Myoclonic jerks are infrequent, mild and of random distribution.[pennsw.com.au]

    Missing: Lower and Upper Limbs Affected
  • Generalized Clonic or Tonic-Clonic Seizures

    myoclonic jerks of cortical origin.[mendelian.co] Generalized myoclonic-tonic-clonic seizures begin with a few myoclonic jerks followed by tonic-clonic activity.[medlink.com] jerks, or both. 4 EGTCSA is a diagnosis currently used by many groups that emphasize specific management issues including the importance of precipitating factors and the[neurology.mhmedical.com]

    Missing: Lower and Upper Limbs Affected