Vascular ectasia of the colon; Colonic arteriovenous malformation
It is important to determine what is causing the bleeding in the colon and how fast blood is being lost. You may need to be admitted to a hospital. Fluids may be given through a vein, and blood products may be required.
Other treatment may be needed once the source of bleeding is found. Most patients stop bleeding on their own without any treatment.
If treatment is needed, it may involve:
In some instances, surgery is the only option. Removal of the entire right side of the colon (right hemicolectomy) is the treatment of choice for someone with this condition who continues to bleed at a dangerously quick rate, despite several treatments by angiography and colonoscopy.
Medications (thalidomide and estrogens) may be used to reduce bleeding and the number of angiodysplasias in certain patients.
Patients who have bleeding related to this condition despite having had colonoscopy, angiography, or surgery are likely to have more bleeding in the future.
The outlook remains good if the bleeding is controlled.
Call your health provider if rectal bleeding occurs.
Hauser S. Vascular diseases of the gastrointestinal tract. In: Goldman L, Ausiello D. Cecil Textbook of Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 146.
Brandt LJ, Landis CS. Vascular lesions of the gastrointestinal tract. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2010:chap 36.
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