O conceito de área de Broca não existe em gliomas de baixo grau – uma série decasos

Conteúdo do artigo principal

Gustavo Rassier Isolan
Ricardo Silva Santos
Rafael Badalotti
Leticia Elizabeth Augustin Czeczko Rutz
Vinícius Ferreira Caron
Rafaela Fernandes Gonçalves
Amanda Carvalho Garcia
Eduardo Antonio Andrade Dos Santos

Resumo

Introdução: A áreas de Broca é uma região localizada no giro frontal inferior esquerdo que é classicamente relacionada a linguagem. Porém, observa-se a manutenção da função da fala após a ressecção de gliomas nessa área. A estimulação cerebral direta com o paciente acordado é um método confiável para avaliar o papel funcional dessa região.


Objetivo: Avaliar a função da área de Broca.


Métodos: De uma série de 69 pacientes com tumores em áreas eloquentes, 7 pacientes com tumores envolvendo a área de Broca e submetidos a cirurgia acordado com estimulação cerebral direta entre 2007 e 2017 foram avaliados retrospectivamente.


Resultados: Dos 7 pacientes que tiveram a área de Broca estimulada, 5 não apresentaram nenhuma alteração na fala. 1 paciente, nativo da língua portuguesa, começou a falar em inglês durante o estímulo. O último paciente, que apresentava um glioblastoma e já tinha déficit parcial de fala, apresentou interrupção completa da fala durante a estimulação da área de Broca.


Conclusões: A área de Broca não parece essencial na função da linguagem em pacientes com gliomas envolvendo essa área, particularmente em gliomas de baixo grau. A estimulação cerebral direta é uma ferramenta muito útil no estudo da correlação entre anatomia e função cerebral.

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