Stent-graft migration: a reappraisal of analysis methods and proposed revised definition.

Purpose: To demonstrate the need for a radiographic definition of migration that accurately describes a specific failure mode of an aortic stent-graft.

Methods: The diagnosis of endograft migration, as defined by the Society for Vascular Surgery/American Association for Vascular Surgery (SVS/AAVS) standards, requires a synthesis of clinical and/or radiographic observations. Radiographic studies and clinical reports of 704 consecutive patients treated over a 6-year period with abdominal aortic endografts were retrospectively reviewed.

Endovascular management of juxtarenal aneurysms with fenestrated endovascular grafting.

Purpose: To evaluate the technical feasibility and short-term results of juxtarenal aneurysm repair with an endovascular graft that incorporated the visceral aortic segment with graft material.

Methods: Patients were studied prospectively after the implantation of an endovascular device with graft material extending proximal to the renal arteries, variably incorporating the superior mesenteric and celiac arteries. All patients were deemed to be high risk with respect to open surgical repair and had compromised proximal neck anatomy.

Aortic dissection in the setting of an infrarenal endoprosthesis: a fatal combination.

Approximately 6 months after the successful implantation of an abdominal aortic endovascular graft, a patient suffered an acute aortic dissection. The false lumen of the dissection terminated in the excluded aneurysm sac, resulting in a lack of outflow. Extreme true lumen compression eliminated blood flow within the distal aorta, resulting in the patient's demise.

Should patients with challenging anatomy be offered endovascular aneurysm repair?

Objectives: Treatment of abdominal aortic aneurysm is controversial in patients at high physiologic risk for open repair and high anatomic risk for endovascular repair. We compared outcome in patients at high risk because of anatomy (short or angulated neck), severe occlusive disease, or bilateral iliac aneurysms (group A) with outcome in patients at low risk (group B).

Material And Methods: Patients at high anatomic risk who underwent treatment between October 1998 and March 2002 with the Zenith endovascular graft (group A) were compared with patients at low anatomic risk enrolled in a prospective multicenter trial (group B).