前交通动脉动脉瘤(ACAA)约占颅内动脉瘤的30～35％。由于其部位深,以往手术效果不理想,手术死亡率有时可高达30％。近年来,随着手术技术的进展,其死亡率已降至1.5～5.5％。关于手术方法,各家意见分歧,一般多主张采用显微手术,但铃木二郎等通过1000例颅内动脉瘤手术,认为不用显微手术亦可获得良好效果。显然,这与术者的 Anterior communicating artery aneurysms (ACAA) account for 30 to 35% of intracranial aneurysms. Due to its deep site, previous surgical results were unsatisfactory, and operative mortality was sometimes as high as 30%. In recent years, with the advancement of surgical techniques, the mortality rate has dropped to 1.5 to 5.5%. With regard to the surgical method, various opinions were divided, and generally more microscopic surgery was advocated. However, Suzuki Erichiro and other surgeons performed 1000 cases of intracranial aneurysm surgery and thought that good results could be achieved without microsurgery. Obviously, this is with the surgeon’s