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19 Possible Causes for Interictal Downbeat Nystagmus, Seizure

  • Episodic Ataxia

    According to Baloh and others (1997), EA2 is characterized by a progressive ataxia with interictal rebound nystagmus evoked by gaze, as well as downbeating nystagmus.[dizziness-and-balance.com] Mutations in CACNA1A encoding a neuronal calcium channel and ATP1A2 encoding an ion pump cause episodic ataxia, hemiplegic migraine, and seizures.[ncbi.nlm.nih.gov] Initial examination disclosed a central type of positional nystagmus (conjugate downbeat nystagmus that did not fatigue with repeated positioning).[jnnp.bmj.com]

  • Autosomal Recessive Spinocerebellar Ataxia 8

    According to Baloh and others (1997), EA2 is characterized by a progressive ataxia with interictal rebound nystagmus evoked by gaze, as well as downbeating nystagmus.[tchain.com] CONVULSIONS, TYPE 3A Nav1.2 (K69/3) FEBRILE SEIZURES ASSOCIATED WITH AFEBRILE SEIZURES BENIGN FAMILIAL INFANTILE CONVULSIONS, TYPE 3 Nav1.6 (K87A/10) CEREBELLAR ATROPHY,[neuromab.ucdavis.edu] Seizures in both siblings increased to episodes of status epilepticus.[epilepsygenetics.net]

  • Spastic Ataxia with Congenital Miosis

    Interictal examination showed spontaneous downbeat and gaze-evoked nystagmus and mild dysarthria and truncal ataxia.[findzebra.com] Frequent (79-30%) HP:0001347 5 hemiplegia/hemiparesis 60 33 frequent (33%) Frequent (79-30%) HP:0004374 6 spastic ataxia 60 33 frequent (33%) Frequent (79-30%) HP:0002497 7 seizures[malacards.org] He had multiple seizures per day, and the seizures were refractory to treatment.[findzebra.com]

  • Adult-Onset Autosomal Recessive Cerebellar Ataxia

    . ; EA2 with interictal nystagmus , is long-lasting (hours) associated with attacks of vertigo, diffuse weakness, slurred speech, dystonia, seizures, truncal and limb ataxia[neuroweb.us] Later in the disease, seizures may develop. These seizures can be severe and life-threatening.[ataxiacenter.umn.edu] Affected individuals present with features of cerebellar ataxia, seizures, cognitive impairment, and peripheral neuropathy.[emedicine.medscape.com]

  • Acute Cerebellar Ataxia

    . ; EA2 with interictal nystagmus , is long-lasting (hours) associated with attacks of vertigo, diffuse weakness, slurred speech, dystonia, seizures, truncal and limb ataxia[neuroweb.us] Practice parameter: the neurodiagnostic evaluation of the child with a first simple febrile seizure. ‎ Seite 196 - Absence seizures. In: Wyllie E, ed.[books.google.de] A 5-year-old boy presented with acute-onset cerebellar ataxia without associated encephalopathy, focal motor deficits, seizures or cognitive decline.[ncbi.nlm.nih.gov]

  • Cerebellar Ataxia with Peripheral Neuropathy Type 2

    . ; EA2 with interictal nystagmus , is long-lasting (hours) associated with attacks of vertigo, diffuse weakness, slurred speech, dystonia, seizures, truncal and limb ataxia[neuroweb.us] Patients aquire spasticity, seizures, intermintant ataxia. Dx sweet smelling urine, increased amino (branched) acids in urine.[cmdg.org] Affected individuals present with features of cerebellar ataxia, seizures, cognitive impairment, and peripheral neuropathy.[emedicine.medscape.com]

  • Alcoholic Cerebellar Degeneration

    . ; EA2 with interictal nystagmus , is long-lasting (hours) associated with attacks of vertigo, diffuse weakness, slurred speech, dystonia, seizures, truncal and limb ataxia[neuroweb.us] J Neurosci 8: 4404–4410 Google Scholar Simon RP (1988) Alcohol and seizures.[link.springer.com] Abstract The following neuropsychiatric disorders have been briefly described: alcohol withdrawal syndrome, delirium tremens, alcohol hallucinosis, Wernicke-Korsakow syndrome, seizures[karger.com]

  • Early-Onset Cerebellar Ataxia

    . ; EA2 with interictal nystagmus , is long-lasting (hours) associated with attacks of vertigo, diffuse weakness, slurred speech, dystonia, seizures, truncal and limb ataxia[neuroweb.us] ACO2 mutations have been reported in individuals from two unrelated families who presented at 2-6 months of age with truncal hypotonia, seizures, and ophthalmologic abnormalities[neurology.org] Additional clinical features may include generalized and focal seizures, spasticity, and dyskinesias.[icd10data.com]

  • Spinocerebellar Ataxia Type 4

    Initial examination disclosed a central type of positional nystagmus (conjugate downbeat nystagmus that did not fatigue with repeated positioning).[jnnp.bmj.com] In severe cases, SCA 2 can cause developmental delay, seizures, and difficulty swallowing even in infancy.[verywell.com] Affected individuals present with features of cerebellar ataxia, seizures, cognitive impairment, and peripheral neuropathy.[emedicine.medscape.com]

  • Spinocerebellar Ataxia Type 6

    Initial examination disclosed a central type of positional nystagmus (conjugate downbeat nystagmus that did not fatigue with repeated positioning).[jnnp.bmj.com] In severe cases, SCA 2 can cause developmental delay, seizures, and difficulty swallowing even in infancy.[verywell.com] Affected individuals present with features of cerebellar ataxia, seizures, cognitive impairment, and peripheral neuropathy.[emedicine.com]

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