Bonardelli Stefano, Ravanelli Marco, Paro Barbara, Battaglia Giuseppe
1 Department of Vascular Surgery, University of Brescia, Italy.
2 Department of Radiology, University of Brescia, Italy.
J Endovasc Ther. 2017 Apr;24(2):218-222. doi: 10.1177/1526602816682499. Epub 2016 Dec 21.
To report a heretofore undescribed complication seen on imaging after endovascular aortic sealing (EVAS).
A 77-year-old woman was treated with the Nellix EVAS device for an infrarenal aortic aneurysm. After a normal computed tomography (CT) scan at 15 days, the 6-month CT showed the onset of perianeurysmal inflammatory tissue. The patient was asymptomatic, and blood tests were normal. Imaging suggested a nonaggressive inflammatory process, so a conservative approach was adopted with close follow-up. The periaortic tissue remitted without any treatment after a further 9 months (16 months after EVAS).
The cause of this nonacute complication is unclear. Some clues suggest that interaction between the endobags and aneurysm wall could be involved. Imaging and clinical data led to a successful conservative strategy.
报告血管内主动脉封堵术（EVAS）后影像学检查中发现的一种此前未描述过的并发症。
一名77岁女性因肾下腹主动脉瘤接受了Nellix EVAS装置治疗。15天时计算机断层扫描（CT）正常，6个月时CT显示动脉瘤周围出现炎性组织。患者无症状，血液检查正常。影像学提示为非侵袭性炎症过程，因此采取保守方法并密切随访。再过9个月（EVAS术后16个月），主动脉周围组织未经任何治疗即消退。
这种非急性并发症的原因尚不清楚。一些线索表明可能涉及内袋与动脉瘤壁之间的相互作用。影像学和临床数据促成了成功的保守策略。
