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Comparative study of the neuropsychological and neuroimaging evaluations in children with dyslexia Estudo comparativo das avaliações neuropsicológicas e de neuroimagem em crianças com dislexia
- Source :
- Arquivos de Neuro-Psiquiatria, Vol 64, Iss 2b, Pp 369-375 (2006)
- Publication Year :
- 2006
- Publisher :
- Academia Brasileira de Neurologia (ABNEURO), 2006.
-
Abstract
- We analyzed retrospectively the neuroimaging exams of children with a confirmed diagnosis of dyslexia and correlated our findings with the evaluation of higher cortical functions. We studied 34 medical files of patients of the Ambulatory of Neuro-difficulties in Learning, FCM/UNICAMP. All of them had been sent to the ambulatory with primary or secondary complaints of difficulties at school and were submitted to neuropsychological evaluation and imaging exam (SPECT). From the children evaluated 58.8% had exams presenting dysfunction with 47% presenting hypoperfusion in the temporal lobe. As for the higher cortical functions, the most affected abilities were reading, writing and memory. There was significance between the hypoperfused areas and the variables schooling, reading, writing, memory and mathematic reasoning. The SPECTs showed hypoperfusion in areas involved in the reading and writing processes. Both are equivalent in terms of involved functional areas and are similar in children with or without specific dysfunctions in neuroimaging.Analisamos retrospectivamente exames de neuroimagem de crianças com diagnóstico de dislexia e correlacionamos os achados com avaliação das funções corticais superiores. Estudamos 34 prontuários de pacientes atendidos no Ambulatório de Neuro-Dificuldades de Aprendizado, FCM/UNICAMP, no período de 1994 a 2002. Todas foram encaminhadas com queixa primária ou secundária de dificuldade escolar e submetidas à avaliação neuropsicológica e exame de imagem (SPECT). Das crianças avaliadas, 58,8% apresentaram exames alterados. Dentre as alterações, 16 possuíam hipoperfusão no lobo temporal. Nas funções corticais superiores, as habilidades mais prejudicadas foram leitura, escrita e memória. Houve significância entre as áreas hipoperfundidas com a variável escolaridade, leitura, escrita, memória e raciocínio matemático. Os SPECTs mostraram hipoperfusão em áreas envolvidas nos processos de leitura/escrita. Ambos se equivalem em termos de áreas funcionais e são semelhantes nas crianças com e sem alterações específicas à neuroimagem.
Details
- Language :
- English
- ISSN :
- 0004282X and 16784227
- Volume :
- 64
- Issue :
- 2b
- Database :
- Directory of Open Access Journals
- Journal :
- Arquivos de Neuro-Psiquiatria
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.3d951f6e4d74c91ab62f1721222cdb4
- Document Type :
- article
- Full Text :
- https://doi.org/10.1590/S0004-282X2006000300004