Sandbox 2

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Lower GI bleeding is defined as any bleed that occurs distal to the ligament of Treitz.

Incidence

  • In the United States the incidence of LGIB ranges from 20.5 to 27 per 100,000 persons per year.

Age

  • There is a greater than 200 fold increase from the third to the ninth decade of life.

Classification

  • Lower GI bleeding can be classified into 3 groups based on the severity of bleeding:
    • Occult lower GI bleeding
    • Moderate lower GI bleeding
    • Severe lower GI bleeding

Blood supply

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