Wingspan Stents for the Treatment of Symptomatic Atherosclerotic Stenosis in Small Intracranial Vessels: Safety and Efficacy Evaluation

被引:25
|
作者
Zhang, L. [1 ]
Huang, Q. [1 ]
Zhang, Y. [1 ]
Liu, J. [1 ]
Hong, B. [1 ]
Xu, Y. [1 ]
Zhao, W. [1 ]
机构
[1] Second Mil Med Univ, Changhai Hosp, Dept Neurosurg, Shanghai, Peoples R China
关键词
SELF-EXPANDING STENTS; BALLOON ANGIOPLASTY; ASSISTED ANGIOPLASTY; DISEASE; METAANALYSIS; LESION; SYSTEM;
D O I
10.3174/ajnr.A2772
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
BACKGROUND AND PURPOSE: Until now, endovascular treatment of symptomatic atherosclerotic stenosis in small intracranial arteries (<= 2.5 mm) was limited. We evaluated the safety and efficacy of the treatment by using Wingspan scents in arteries of this caliber. MATERIALS AND METHODS: From March 2007 to July 2010, 53 symptomatic intracranial stenoses,with narrowing of at least 50% in 53 patients were treated by using Wingspan stents. Clinical manifestations and imaging features were recorded. RESULTS: The technical success rate was 98.1%. There were no serious complications, with the exception of 1 patient who experienced a small cerebral hemorrhage caused by perforation of microwire. Thirty-nine patients (74%) were available for follow-up imaging with DSA. ISR was documented in 13 of these patients, including 2 patients with symptomatic ISR. The median length of the vascular lesions was 5.39 mm, and patients whose vascular lesions were longer than 5.39 mm had a much higher incidence of ISR than patients whose vascular lesions were shorter than 5.39 mm (53% versus 15%, respectively). The median ratio of the reference artery diameter to the stent diameter was 0.78, and patients whose ratio was smaller than 0.78 had a much higher incidence of ISR than patients whose ratio was larger than 0.78 153% versus 15%, respectively). CONCLUSIONS: In our series, percutaneous transluminal angioplasty and stent placement of small intracranial arteries by using Wingspan stents was safe. The ISR rate was relatively high; most patients having ISR were asymptomatic. Further follow-up is needed to assess the long-term efficacy of this procedure.
引用
收藏
页码:343 / 347
页数:5
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