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  • Title: Embolization of the vasa recta in acute lower gastrointestinal hemorrhage: A report of five cases.
    Author: Ledermann HP, Schoch E, Jost R, Zollikofer CL.
    Journal: Cardiovasc Intervent Radiol; 1999; 22(4):315-20. PubMed ID: 10415222.
    Abstract:
    PURPOSE: To present our preliminary experience in embolization of the vasa recta in acute gastrointestinal hemorrhage. METHODS: In four of five patients with acute gastrointestinal hemorrhage superselective embolization of the vasa recta was performed. In one patient in whom superselective catheterization of the bleeding vas rectum was technically impossible, the origin of this vessel was embolized at the level of the terminal arcade. The following embolization materials were used: microcoils and polyvinyl alcohol particles (355-500 microm), n = 2; microcoils only, n = 2; Gelfoam particles, n = 1. RESULTS: Bleeding was found in two patients in the small bowel (jejunum and ileum) and in three patients in the colon. Immediate hemostasis was achieved in all patients. No signs of ischemia or infarction were observed after intervention. CONCLUSIONS: Superselective embolization of the vasa recta proved efficient and safe in our small patient group. Advantages of this technique are reduction of the embolized area to a minimum and direct control of hemostasis.
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