Abstract:

【Abstract】 Objective To obtain the preliminary experience on retractable self-expandable stent (LEO) combined with coils for embolization of wide-necked anterior communicating artery aneurysms. Methods Ten wide-necked anterior communicating artery aneurysms were embolized with LEO stent in combination with detachable coils. Six cases were male, and four cases were female. All patients were from 19 to 78 years old, with mean age was 58±6 years old. Six cases were treated by staged release of the LEO stent. Stent delivery cross the aneurismal neck after endovascular coiling of aneurysms was performed in two cases. In another two cases, aneurysms were coiled endovascularly after LEO stent released. The delivery system was advanced inside the Vasco+ microcatheter. The LEO stent was sent back and forth until it was precisely across the neck of the aneurysm. Results Nine aneurysms were embolized completely with stent-coil technique, and one case was partially occluded . There was a thrombo-embolic event following the deployment of the LEO stent in one patient with acute subarachnoid hemorrhage, whom was cured without complications. Conclusion The LEO stent can be deployed accurately within the cerebral vascular vessels. It is a feasible, secure and effective system in treating wide-necked anterior communicating artery aneurysm. Furthermore, its combination with coiling embolization offers a promising therapeutic alternative in the treatment of wide-necked anterior communicating artery aneurysms.

Key words: 【Key Words】 Stent; Intracranial aneurysm

摘要：

目的 总结新型可回收的自膨式支架（LEO）在辅助栓塞治疗前交通宽颈动脉瘤的性能和初步应用体会。 方法 应用LEO支架辅助微弹簧圈治疗前交通宽颈动脉瘤10例。男6例，女4例，年龄19岁～78岁，平均年龄（58±6）岁。LEO支架6例采用半释放技术；2例采用先填微弹簧圈，待弹簧圈栓塞完全，再在动脉瘤开口覆盖LEO支架；2例采用先释放LEO支架，微导管再行穿过支架网眼，填塞微弹簧圈，将动脉瘤栓塞。在释放支架过程中，支架可自如进出其外套管（VASCO+），使之释放在动脉瘤颈最佳位置。 结果 9例应用LEO辅助的动脉瘤均被完全栓塞，1例部分填塞。1例蛛网膜下腔出血24h患者，急症栓塞后，支架内出现血栓并发症，经溶栓将支架内栓子溶解。 结论 可回收自膨式支架可稳妥释放在前交通宽颈动脉瘤开口的最佳位置，有效保护载瘤动脉。

关键词: 【关键词】 支架; 颅内动脉瘤