Mental retadation: a MRI study of 146 Brazilian children

Arquivos de Neuro-Psiquiatria

Armando Freitas Da Rocha²  Cláudia Da Costa Leite¹  Fábio Theoto Rocha²  Eduardo Massad¹  Giovanni Guido Cerri¹  Sueli Aparecida De Oliveira Angelotti¹  Eloisa Helena Garcia Gomes¹  Carla Cristina M. Oliveira¹ 

[1] ,University of São Paulo School of Medicine

关键词: mental retardation;    magnetic resonance image;    maternal stress;    cerebral lesion;    agressiveness;    deficiência mental;    ressonância magnética;    estresse materno;    lesão cerebral;    agressividade;   

DOI  :  10.1590/S0004-282X2006000200003

来源: SciELO

【 摘 要 】

We report results of a magnetic ressonance imaging (MRI) study of 146 Brazilian children, whose intelligence quotient scored less than 70. 50% of MRI examinations did not exhibit any signal of structural lesion (N group), whereas a focal thinning at the junction of the body and splenium of the corpus callosum; ventricular asymmetry; periventricular leukomalacia; gliosis and arachnoid cysts were among the most frequent findings in the remaining of subjects (L group). Maternal stress and altered blood pressure were the most frequent findings in the pre-natal history of both N and L children. Familial antecedents of mental deficiency were reported in 30% of both groups, whereas familiar history of alcoholism was important in N group (60% in N versus 0% in L groups). Neuropsychomotor development was delayed in 80% of the children in both groups. Aggressiveness is the most frequent finding in the post-natal children history.

【 授权许可】

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