Aortic Neck Angulations Decrease During and After Endovascular Aneurysm Repair
Aortic Neck Angulations Decrease During and After Endovascular Aneurysm Repair
复制标题
DOI：
10.1583/10-3131mr.1
复制
发表时间：
2010-10-01
影响因子：
2.6
通讯作者：
van Herwaarden, Joost A.
中科院分区：
文献类型：
--
作者：
van Keulen, Jasper W.;Moll, Frans L.;van Herwaarden, Joost A.
目的：探讨肾上和肾下主动脉颈角是否在血管内动脉瘤修复（EVAR）后立即或随访中发生改变。主动脉成角的改变会影响近端支架的封闭和固定区，从而可能影响EVAR的长期结果。方法：43例EVAR患者（39例男性，平均年龄73岁，62-85岁）术前、术后及随访1、2、3年的计算机断层血管造影（CTA）数据均来自本中心血管数据库。采用标准化的三维中心线法测量所有cta的肾上角和肾下角，其可重复性系数为肾上角6.4度（20.2%）和肾下角6.2度（13.4%）。重复测量分析用于测试角度随时间的影响，随后进行事后分析。结果：术前平均肾上腺上角28度+/- 16度，术后22度+/- 16度，术后1年19度+/- 15度，术后2年17度+/- 14度，术后3年16度+/- 13度（平均差值分别为5度、9度、11度、12度）。主动脉瓣上角明显减小（p < 0.05）
Purpose: To investigate whether suprarenal and infrarenal aortic neck angles change immediately after endovascular aneurysm repair (EVAR) or during follow-up. A change in aortic angulation influences the proximal stent-graft sealing and fixation zone, thereby possibly influencing the long-term results of EVAR.Methods: Forty-three EVAR patients (39 men; mean age 73 years, range 62-85) with preoperative, postoperative, and 1, 2, and 3-year follow-up computed tomographic angiography (CTA) data were selected from our center's vascular database. The suprarenal and infrarenal angulations on all CTAs were measured using a standardized 3-dimensional centerline method, which has a repeatability coefficient of 6.4 degrees (20.2%) for the suprarenal angle and 6.2 degrees (13.4%) for the infrarenal angle. Repeated measures analysis was used to test the effect of angulation over time, followed by a post-hoc analysis.Results: The mean suprarenal angulation was 28 degrees +/- 16 degrees preoperatively, 22 degrees +/- 16 degrees postoperatively, 19 degrees +/- 15 degrees after 1 year, 17 degrees +/- 14 degrees after 2 years, and 16 degrees +/- 13 degrees after 3 years (mean difference 5 degrees, 9 degrees, 11 degrees, and 12 degrees, respectively). The aortic suprarenal angle decrease was significant (all p