Zenith腔内支架移植物治疗腹主动脉瘤

目的 评价Zenith跨肾动脉内支架移植物置入术治疗腹主动脉瘤的有效性及安全性。方法 5例腹主动脉瘤患者，均为男性，年龄52～73岁。三维CT造影示4例为Blum B型，1例为Blum C型，瘤颈直径21．0～25、0mm(平均22、8mm)，瘤颈长度16．5～32．8mm(平均25．6mm)。于全麻下穿刺股动脉后，在透视下置入内支架移植物，5例均为Zenith分叉型内支架。结果 5例内支架移植物置入均获成功。手术操作时间1、8～3、0h。术后住院7～14d。术后1周行增强CT复查，均无内漏发生。术后2个月及11个月CT复查各1例，均无内漏及内支架移位。5例随诊6．0～55．0个月(平均26．6个月)均无再发。结论 Zenith腔内支架移植物置入术是治疗腹主动脉瘤的一种安全有效的方法。

Abdominal aortic aneurysms: treatment with Zenith endoluminal stent-graft

Objective To evaluate the efficacy and safety of Zenith transrenal stent-graft in repairing the abdominal aortic aneurysms. Methods Endoluminal stent-grafts repair was performed in 5 male patients with abdominal aortic aneurysms. Their age ranged from 52 years to 73 years with a mean of 65 years. Three-dimensional CT angiography demonstrated Blum type B in 4 cases and Blum type C in 1 case. The diameter of aneurismal neck was between 21 mm and 25 mm (mean 22.8 mm), and the length of aneurismal neck was between 16.5 mm and 32.8 mm (mean 25.6mm). Stent-grafts were inserted through surgically exposed femoral arteries in general anesthesia with the fluoroscopic guidance. The Zenith transrenal bifurcated stent-grafts were applied in all 5 patients. Results The endoluminal stent-graft repair was successful in all 5 patients with operational duration of 1.8-3.0 hours. The hospitalization duration was 7-14 days following the procedure. No endoleaks occurred in the 5 cases following the contrast-enhanced CT scans seven days after the interventions. Still no endoleaks or stent-grafts migration recurred in 2 patients followed up at the 2nd and 11th month, respectively. During the follow-up from 6 months to 55 months (mean 26.6 months), five patients were still asymptomatic. Conclusion Zenith aortic stent-graft repair of abdominal aortic aneurysms is an effective and safe treatment method.