Skilled emboli zing technique, better understanding of aneurysm and its parent artery angioanatomy, correct judgment during treatment and improved embolic material are helpful to reduce the accidents and the their effect.

• 栓塞技术的提高，动脉瘤和载瘤动脉解剖的深入理解，术中发生情况的正确处理、栓塞材料的改进，有助于降低并发症的发生率改善其预后。