Operative Results of Infratentorial Aneurysms in Acute Stage

Abstract

Twenty-one patients with ruptured infratentorial aneurysms and subarachnoid hemorrhage were surgically treated in the acute stage. There were six fatilities, a mortality rate of 28%, and most being patients with basilar bifurcation aneurysms. Thirteen of the survivors have done well while two are in poor condition. Poor prognosis with death was caused by severe subarachnoid hemorrhage, vasospasm and the injury of perforating arteries. Therefore, we concluded that it was very important to prevent vasospasm postoperatively and to avoid the injury of perforating arteries in acute operation for infratentorial aneurysms.