Colonoscopy-related colonic ischemia

World J Gastroenterol. 2021 Nov 14;27(42):7299-7310. doi: 10.3748/wjg.v27.i42.7299.


Colonoscopy is a risk factor for colon ischemia. The colon is susceptible to ischemia due to its minor blood flow compared to other abdominal organs; the etiology of colon ischemia after colonoscopy is multifactorial. The causative mechanisms include splanchnic circulation impairment, bowel preparation, drugs used for sedation, bowel wall ischemia due to insufflation/barotrauma, and introduction of the endoscope. Gastroenterologists must be aware of this condition and its risk factors for risk minimization, early diagnosis, and proper treatment.

Keywords: Bowel preparation; Colon ischemia; Colonoscopy; Endoscopy; Ischemic colitis; Mesenteric circulation.

Publication types

  • Review

MeSH terms

  • Colitis, Ischemic* / diagnostic imaging
  • Colitis, Ischemic* / etiology
  • Colon / diagnostic imaging
  • Colonoscopy
  • Humans
  • Ischemia / etiology
  • Mesenteric Ischemia*