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244 Possible Causes for Electroencephalogram Abnormal, Severe Mental Retardation in Some Patients

Did you mean: Electroencephalogram Abnormal, Severe Mental Retardation, in Some Patients

  • Alzheimer Disease

    MEF2C haploinsufficiency caused by either microdeletion of the 5q14.3 region or mutation is responsible for severe mental retardation with stereotypic movements, epilepsy[]

  • Epilepsy

    Electroencephalogram findings were described in eleven, and nine (82%) showed epileptiform abnormalities.[] Mutations in MEF2C from the 5q14.3q15 microdeletion syndrome region are a frequent cause of severe mental retardation and diminish MECP2 and CDKL5 expression. Hum.[] mentally retarded individuals, Psychiatry and Clinical Neurosciences, 54, 1, (17-22), (2001).[]

  • Juvenile Myoclonic Epilepsy

    Partial seizures and asymmetric abnormalities seen on electroencephalogram (EEG) are infrequent in juvenile myoclonic epilepsy, but when present, can lead to a misdiagnosis[] Physical examination revealed a small stature, bilateral pyramidal signs, severe mental retardation, and retinis pigmentosa.[] The EEG (electroencephalogram) is the most important test in making a diagnosis of juvenile myoclonic epilepsy.[]

  • Early Infantile Epileptic Encephalopathy Type 2

    An electroencephalogram (EEG) is very abnormal in these cases.[] The related gene mutations cause early infantile epileptic encephalopathy characterized by intractable epilepsy, severe mental retardation and, later, the development of Rett[] The disorder is also characterized by a severely abnormal electroencephalogram (EEG) called “burst-suppression” in which short periods of abnormal brain activity are separated[]

  • Phenylketonuria

    Untreated patients usually exhibit severe mental retardation and poor motor function, with characteristic T2 white matter signal abnormalities on conventional MR images.[] Clinical findings included hair hypopigmentation, microcephaly, severe mental retardation with absent development of verbal language and autistic symptoms in all three patients[] mental retardation (MR).[]

  • Myoclonic-Astatic Epilepsy

    Diagnosis The EEG (electroencephalogram), which records the electrical activity in the brain, is usually abnormal.[] All the patients with refractory seizures showed moderate or severe mental retardation.[] Information also comes from tests such as: EEG (electroencephalogram): children with EMAS may have normal EEGs at first, but most have abnormal EEGs that show frequent synchronous[]

  • GLUT1 Deficiency Syndrome

    Absence seizures appeared at the age of 4 years, and electroencephalogram (EEG) showed irregular discharges of diffuse epileptic abnormalities.[] Varying degrees of cognitive impairment can occur, ranging from learning disabilities to severe mental retardation.[] Su's team to develop this analysis and additional research on individual patient's electroencephalogram or EEG imaging analysis to localize the sources of abnormal brain signals[]

  • Early Infantile Epileptic Encephalopathy Type 6

    […] on the EEG [electroencephalogram] with a slow spike and slow wave pattern of 1.5 to 2 Hz, [and it has] different seizure types.[] mental retardation, sleep disturbances and personality disorders (such as social isolation, frequent mood swings).[] MRI showed abnormalities in the bilateral thalami, cerebellum and brainstem. These abnormalities were protracted over a month.[]

  • Cerebral Palsy

    Measuring them can help to detect abnormalities of hearing and vision. Electroencephalogram (EEG) - this can help to detect damage from hypoxia and vascular insult.[] All had moderate to severe mental retardation.[] If cerebral palsy is suspected, a doctor will take a comprehensive history and perform a physical examination to check for stiff muscles and abnormal reflexes.[]

  • Dialysis Dementia

    Decisions regarding initiation of dialysis and medical therapy in the institutionalized severely mentally retarded.[]

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