Multiple intracranial aneurysms in Songklanagarind Hospital

We retrospectively reviewed the 107 patients on whom direct surgery was performed for intracranial aneurysms between December 18, 1984 and July 25, 1996. The incidence of multiple intracranial aneurysms in our hospital is 6.5 per cent (7/107 cases). There were 16 aneurysms in 7 cases with multiple aneurysms. There were 2 and 5 patients with 3 and 2 aneurysms respectively. The most common site was at the junction of posterior communicating artery (PCoA) and internal carotid artery (ICA). The preoperative conditions of the patients were closely related to the operative results. We performed direct surgery on bilateral aneurysms by bifrontal approaches. There was no mortality.