Methods:Re trospective analysis has been made of 21 aneurysm patients hospitalized in recen t years,most of them were operated with the microneurosurgical clipping techniqu e.

• 方法：回顾分析近几年部分直视下，大部显微外科手术下夹闭颅内动脉瘤21例，其中5例术中破裂。