[Treatment of arterio-venous aneurysms (AVA) in language areas. About 18 cases (author's transl)].

This study, about 18 cases of AVA strictly in language areas (posterior end of the inferior frontal gyrus (Broca), posterior third of T1 and T2, supra-marginalis and angularis gyri), prepose to specify the possibilities and the legitimacy of surgical management as well as the technical parts of removal. Malformations may divided in to : 1 arterio-venous fistula, 3 medium AVAS, 8 important AVA, 6 cirsoïdum aneurysms. 15 patients presented one or several intracranial hemorrhage (ICH). 3 others were admitted before this complication : 2 epileptic seizures, 1 left hemicrania. 2 patients died because of important ICH before any surgical treatment. The 16 others were operated. Two died during post-operative course : one because of prior ICH with deep coma, the other third month after a good period. In one case upon 14, a disabling handicap concerning language is noted after an important ICH. Except an ethylic patient with post-operative acalculia, minor language handicaps were observed only in patients with hemorrhagic seizure, permissing always satisfactory life. The best results on vital and functional prognosis were obtained for patients with no prior important ICH. So we must indicate the radical removal of all known AVA or cirsoïd aneurysms. The opinion that these last malformations generally do not bleed, may produced mistakes with their weighty consequences.