应用Willis覆膜支架治疗脑池段动脉瘤的临床对照研究和长期随访结果

目的复杂性颈内动脉脑池段动脉瘤(ICA-CSA)治疗难度很高。本研究通过与弹簧圈填塞治疗疗效比较,探讨Willis覆膜支架治疗ICA-CSA的可行性。方法19枚和17枚ICA-CSA分别使用Willis覆膜支架植入(A组)和弹簧圈(B组)填塞治疗。即刻和随访血管造影评价动脉瘤复发,内漏和载瘤动脉狭窄情况。Kaplan-Meier生存分析曲线比较两组治疗动脉瘤的无复发率和载瘤动脉无再狭窄率。结果A组中,13枚ICA-CSA植入支架,即刻造影完全闭塞,有5枚ICA-CSA存在少量内漏;B组中,7枚ICA-CSA弹簧圈填塞即刻达到完全和次完全闭塞,8枚达到大部填塞,2枚部分填塞。在两组中各发生1例急性血栓形成,1例弹簧圈填塞后发生再出血。A组随访造影显示16枚ICA-CSA完全闭塞,2支载瘤动脉有轻度狭窄。Kaplan-Meier曲线分析表明术后18个月两组病例中分别有93.3%和50%动脉瘤治疗后无复发,分别有87.5%和100%载瘤动脉无狭窄。临床症状随访研究表明A组和B组病例中神经症状完全恢复分别为9例和9例,明显改善分别为3例和5例,无改变分别为2例和2例,恶化进展分别为1例和0例。结论应用Willis覆膜...

Application of Willis covered stent in the treatment of aneurysms located in the cisternal segment of the internal carotid artery: a pilot comparative study with long-term follow-up results

Objective Complicated aneurysms located in the cisternal segment of the internal carotid artery(ICA-CSA) present unique therapeutic difficulties.This study is to discuss the feasibility of the Willis stent-graft in treating complicated ICA-CSA by comparing its effect with that of coiling therapy.Methods Willis covered stents were employed in 19 complicated ICA-CSAs(group A),while coils were used in 17 complicated ICA-CSAs(group B).Follow-up angiography was performed to investigate aneurysm recurrence,endole...