“…13,19 In patients with duodenal obstruction after aortic reconstructive surgery, symptoms are noted 8 to 60 days (mean, 13.3 days) after the operation, and include increased nasogastric tube output, nausea, bilious vomiting, and pain. Reported causes of duodenal obstruction after aortic repair include hematoma, sac seroma, superior mesenteric syndrome, bowel edema, and adhesions [10][11][12][13][15][16][17][18][19][20]. Hematoma, seroma, and superior mesenteric artery syndrome are all characterized by external compression of the duodenum.…”