小脑后下动脉瘤血管内栓塞治疗的初步临床研究

目的 探讨小脑后下动脉(PICA)瘤栓塞治疗的方法及效果.方法 回顾性分析21例PICA瘤经血管内栓塞治疗的临床资料,根据DSA资料估计动脉瘤的解削分段.采取单纯弹簧圈栓塞8例、单纯液体胶栓塞5例、弹簧圈联合液体胶栓塞2例、支架辅助弹簧圈栓塞2例、球囊辅助弹簧圈PICA闭塞4例,用格拉斯哥预后(GOS)评分评估疗效.结果 单纯弹簧圈致密栓塞5例,90%以上栓塞2例,85%栓寒1例;单纯液体胶栓塞的5例及弹簧圈联合液体胶栓塞的2例均达到致密栓塞;支架辅助弹簧圈栓塞的2例90%以上栓塞;球囊辅助弹簧圈完全闭塞载瘤动脉3例,90%以上栓塞1例.术后脑干穿支动脉闭塞导致死亡1例,术后1周新发神经功能障碍1例,其余未见再出血及小脑损害症状.术后随访6～60个月,平均(22±8)个月.COS评分Ⅰ级1例,Ⅱ级1例,Ⅲ级2例,Ⅳ级5例,Ⅴ级12例.结论 根据PICA瘤的解剖分段选择不同的栓塞方法,可取得良好的治疗效果.

Preliminary clinical study on endovascular treatment of posterior inferior cerebellar artery aneurysms

Objective To study the methods and results of endovascular treatment of posterior inferior cerebellar artery (PICA) aneurysms. Methods Twenty-one patients with PICA aneurysms were treated with endovascular treatment. The locations of aneurysm on PICA were evaluated through the DSA. Eight patients received single coil embolization, 5 received liquid Glue embolization, 2 received coil embolization combined with liquid Glue, 2 received coil embolization assisted with stents, and 4 underwent ocelasion of the parent PICA. Outcome was evaluated with the Glasgow outcome scale (COS). Results There were complete (100%) occlusion in 5 patients, near complete (>90% ) occlusion in 2, and incomplete (85%) occlusion in 1 in single coil embolization. Seven patients with Glue embolization (n = 5 ) or combination with coils ( n = 2 ) exhibited complete ( 100% ) occlusion. There were near complete ( >90% ) occlusion in 2 cases with coil assisted with stents. Complete occlusion of the parent PICA was achieved in 3 patients, and near complete occlusion of PICA in one case. One patient suffered from new neurological deficits, and one patient treated with coils and stents died. None of the patients suffered from re-bleeding. These patients received follow-up during a mean period of (22±8) months. Overall long-term outcome was good ( GOS score 4 or 5 ) in 17 patients, poor ( COS score 2 or 3) in 3, and fatal ( GOS score 1 ) in one case. Conclusions According to the location of aneurysms on PICA, aneurysms can be effectively and safely treated with endovaecular embolization.