It can cause severe complications, such as brain ischemia or cervical hematorrhea incurred by rupture of aneurysm.

它可以引起严重的并发症，比如大脑血或动脉瘤破裂产生的颈软组织出血。

Objective To introduce experience of ambilateral posterior communicating aneurysms(PcoAA)that treated by micrurgy, and discussed its operating modus and operating juncture.

目的介绍8双侧颈内动脉-后交通动脉瘤手术的经验,对其手术的方法、方式及手术时机等进行探讨。

Results Aneurysms from anterior communicating artery and posterior communicating artery, which were not huge aneurysms, were easier to rupture. 32%of ruptured aneurysms were multilobe.

结果出血性动脉瘤多位于前、后交通动脉，无巨大型动脉瘤，约32%的动脉瘤表现为分叶或多房状。