Hausegger K A, Cragg A H, Lammer J, Lafer M, Flückiger F, Klein G E, Sternthal M H, Pilger E
Department of Radiology, University Hospital Graz, Austria.
Radiology. 1994 Jan;190(1):199-202. doi: 10.1148/radiology.190.1.8259404.
To determine the effectiveness of a prototype nitinol stent in the iliac arteries.
Fourteen patients with arteriosclerotic lesions of the iliac arteries (nine stenoses, five occlusions) were treated percutaneously with a prototype nitinol vascular stent (Cragg stent) after unsuccessful percutaneous transluminal angioplasty.
In 13 patients available for follow-up, the mean ankle-brachial index (ABI) increased from 0.4 +/- 0.32 (standard deviation) before the procedure to 0.81 +/- 0.27 after the procedure (P < .01). After 6, 12, and 24 months, the mean ABI was 0.97 +/- 0.2, 0.87 +/- 0.15, and 0.89 +/- 0.1, respectively. In two patients, radial stiffness of the stent was too low to completely eliminate a high-grade, calcified stenosis; long-term patency of the vessel, however, was preserved. In all other patients, stent placement achieved good vascular reconstitution. No stent occlusion or restenosis was observed.
The results with the Cragg stent were similar to those with other commercially available stents. These preliminary results require confirmation with a larger series.
确定一种原型镍钛诺支架在髂动脉中的有效性。
14例髂动脉粥样硬化病变患者（9例狭窄，5例闭塞）在经皮腔内血管成形术失败后，经皮接受了一种原型镍钛诺血管支架（Cragg支架）治疗。
在13例可进行随访的患者中，平均踝肱指数（ABI）从术前的0.4±0.32（标准差）增加到术后的0.81±0.27（P<.01）。6个月、12个月和24个月后，平均ABI分别为0.97±0.2、0.87±0.15和0.89±0.1。在2例患者中，支架的径向硬度过低，无法完全消除高度钙化的狭窄；然而，血管的长期通畅性得以保留。在所有其他患者中，支架置入实现了良好的血管重建。未观察到支架闭塞或再狭窄。
Cragg支架的结果与其他市售支架的结果相似。这些初步结果需要更大规模的系列研究加以证实。
