颅内动脉瘤是自发性蛛网膜下腔出血最常见的原因之一,好发年龄40～60岁。动脉瘤破裂出血后按Hunt分级属于Ⅳ、Ⅴ级者处理困难,死亡率及致残率很高。随着显微神经外科技术的发展,其死亡率明显降低。本组报告34例Hunt Ⅳ、Ⅴ级颅内动脉瘤的显微外科治疗经验。 Intracranial aneurysm is one of the most common causes of spontaneous subarachnoid hemorrhage, good hair age 40 to 60 years. Aneurysm rupture bleeding by Hunt classification is Ⅳ, Ⅴ grade treatment difficulties, high mortality and morbidity. With the development of microsurgical neurosurgery, its mortality was significantly reduced. The group reported 34 cases of Hunt Ⅳ, Ⅴ intracranial aneurysm microsurgical treatment experience.