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例双侧颈内动脉-后交通动脉瘤显微手术的经验,对其显微手术的方法、方式及手术时机等进行探讨。