What are the advantages and disadvantages of angiography for diagnosing lower gastrointestinal (GI) bleeding (LGIB)?

Updated: Jul 26, 2019
  • Author: Burt Cagir, MD, FACS; Chief Editor: BS Anand, MD  more...
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The advantages of angiography include: (1) This modality provides accurate localization of the bleeding; (2) it has a therapeutic utility that includes the use of vasopressin infusion or embolization; and (3) it does not require preparation of the bowel.

The disadvantages of angiography include: (1) It has a sensitivity of approximately 30%-47%; (2) it can only be performed during active bleeding; and (3) it has a complication rate of about 9%. Such complications include thrombosis, embolization, and renal failure. [43]

Also see Lower Gastrointestinal Bleeding Imaging.

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