neck angulation was the risk factor most significantly related to PPE and graft migration.

These data suggest that, overall, E is effective in facilitating placement of a nasoenteric feeding tube into the duodenum in ICU patients. It is clearly beneficial in those patients with normal mental status and may be useful in patients with diabetes mellitus.

Endovascular repair (EVR) of abdominal aortic aneurysm (AAA) is being performed with increasing frequency worldwide. Reports about technical feasibility 1 and results in selected series of patients have been reported in the literature. 2,3 Increased technical expertise and improved graft design have expanded the applications of this technique, and currently more difficult aneurysms are treated by the endovascular approach. Technical complications in selected group of patients have been reported by several authors. [4][5][6] However, intraoperative technical problems are expected to increase when complex aneurysms are treated.

ICDU is a simple and affordable method that seems well suited to periodic screening in patients with suprarenal stents. Longer follow-up with a larger number of patients is needed before definite conclusions can be drawn about the effect of suprarenal stenting on renal circulation.

Distal device migration occurred frequently with the Nottingham system. Late graft migration was not associated with neck enlargement. Endografts with a suprarenal stent may have a decreased incidence of graft migration.