Obscure Gastrointestinal Bleeding

  • Chapter
Endoscopy in Small Bowel Disorders

Abstract

Obscure gastrointestinal bleeding (OGIB) is by far the most common indication for small bowel endoscopy, since a presumed bleeding source is usually attributed to the small intestine after negative esophagogastroduodenoscopy (EGD) and colonoscopy. In the first decade after the advent of video capsule endoscopy (VCE) and balloon-assisted enteroscopy (BAE), most research studies focused on “diagnostic yield” as the outcome of interest, which essentially translates into the proportion of cases in which a probable bleeding source was visualized during the procedure as determined by the endoscopist performing that procedure. The inherent limitation with using “diagnostic yield” is the lack of any gold standard to validate whether in fact the presumed source of bleeding is in fact the true source of bleeding, and whether treatment of that lesion actually results in an improvement in the patient’s condition. Increasing attention has focused on the study of actual clinical outcomes determined by long-term follow-up after VCE, BAE and other small bowel imaging modalities, which provide a much more relevant picture of the impact of these investigations on patient care. It is these results from clinical outcomes studies in OGIB that are the focus of this chapter.

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Correspondence to Christopher Teshima M.D., M.Sc., Ph.D., F.R.C.P.C. .

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Angiodysplasia treated with argon plasma coagulation during DBE (M4V 40125 kb)

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Teshima, C. (2015). Obscure Gastrointestinal Bleeding. In: Kozarek, R., Leighton, J. (eds) Endoscopy in Small Bowel Disorders. Springer, Cham. https://doi.org/10.1007/978-3-319-14415-3_9

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  • DOI: https://doi.org/10.1007/978-3-319-14415-3_9

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