The purpose of this study was to evaluate the results of 315 intracranial saccular aneurysms in 290 patients selectively treated with GDC in a single Center. One hundred and fifty eight patients were treated at the acute phase of the sub-arachnoid hemorrhage (SHA), sixty patients were treated more than three weeks after the SHA, seventy two patients were treated for unruptured aneurysms. We found at three months post-embolization good clinical results in 88,6%, a moderate disability in 3,4%, a severe disability in 2,7%, a 5,2% mortality. The complete aneurysm occlusion rate was 80,6% on the immediate control angiogram. Smaller the aneurysms, better were the anatomical results. The GDC treatment appears as an alternative treatment of surgery for the ruptured aneurysms at the acute-phase of SHA.