Which patients are candidates for urgent colonoscopy to evaluate lower gastrointestinal (GI) bleeding (LGIB)?

Updated: Jul 26, 2019
  • Author: Burt Cagir, MD, FACS; Chief Editor: BS Anand, MD  more...
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Candidates for urgent colonoscopy should be properly screened and include patients who are hemodynamically stable with no ongoing brisk bleeding, because the diagnostic yield is otherwise lowered in such patient populations. Thus, the best candidates for urgent colonoscopic evaluation are patients who are bleeding slowly or who have already stopped bleeding. The bowel should be well prepared, with a rapid oral purge (or via NG tube in selected patients), because performing an urgent colonoscopy on an unprepared bowel is difficult and frequently unsuccessful.

Alternatively, emergent/immediate unprepared hydroflush colonoscopy can be performed in a patient in the intensive care unit with ongoing active severe LGIB. [42]

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