Reading impairment in the neuronal migration disorder of periventricular nodular heterotopia.
Neurology
; 64(5): 799-803, 2005 Mar 08.
Article
em En
| MEDLINE
| ID: mdl-15753412
ABSTRACT
OBJECTIVE:
To define the behavioral profile of periventricular nodular heterotopia (PNH), a malformation of cortical development that is associated with seizures but reportedly normal intelligence, and to correlate the results with anatomic and clinical features of this disorder.METHODS:
Ten consecutive subjects with PNH, all with epilepsy and at least two periventricular nodules, were studied with structural MRI and neuropsychological testing. Behavioral results were statistically analyzed for correlation with other features of PNH.RESULTS:
Eight of 10 subjects had deficits in reading skills despite normal intelligence. Processing speed and executive function were also impaired in some subjects. More marked reading difficulties were seen in subjects with more widely distributed heterotopia. There was no correlation between reading skills and epilepsy severity or antiepileptic medication use.CONCLUSION:
The neuronal migration disorder of periventricular nodular heterotopia is associated with an impairment in reading skills despite the presence of normal intelligence.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Córtex Cerebral
/
Dislexia
/
Malformações do Sistema Nervoso
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
Limite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Neurology
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Estados Unidos