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

它可以引起严重并发症，比如大脑局部缺血或动脉破裂颈部软组织出血。

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

目介绍8双侧颈内动脉-后交通动脉手术经验,对其手术方法、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.

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