Ryu Robert K, Palestrant Sarah, Ryu Jessica, Trachtenberg Jeffrey
Northwestern University, Feinberg School of Medicine, Chicago, IL, USA.
Cardiovasc Intervent Radiol. 2007 May-Jun;30(3):488-90. doi: 10.1007/s00270-006-0005-z.
Aneurysm sac expansion following endovascular abdominal aortic aneurysm repair (EVAR) is typically associated with endoleaks that can be readily diagnosed on computed tomographic angiography (CTA), ultrasound, or catheter-directed arteriography. Sac hygromas are a cause of sac expansion without apparent endoleak and are presumed to be a result of ultrafiltration of serum manifested by accumulation of fibrinous, gelatinous material within the aneurysm sac following EVAR. Although there are no reported associated ruptures, sac expansion is nevertheless disconcerting and intervention is presumably indicated. We report a case of an expanding aneurysm after EVAR secondary to sac hygroma that was successfully treated with relining of the existing, original endograft.
血管内腹主动脉瘤修复术（EVAR）后动脉瘤囊扩张通常与内漏有关，内漏可通过计算机断层血管造影（CTA）、超声或导管导向动脉造影轻易诊断。囊状水瘤是动脉瘤囊扩张的一个原因，且无明显内漏，推测是血清超滤的结果，表现为EVAR后动脉瘤囊内纤维蛋白、凝胶状物质的积聚。虽然没有报道过相关破裂情况，但动脉瘤囊扩张仍然令人不安，可能需要进行干预。我们报告一例EVAR后因囊状水瘤导致动脉瘤扩张的病例，该病例通过对现有的原始血管内移植物进行内衬成功治疗。
