Ischemic Intestinal Injury
General Principles
- Acute mesenteric ischemia results from arterial (or rarely venous) compromise to the superior mesenteric circulation.
- Emboli and thrombus formation are the most common causes of acute mesenteric ischemia, although nonocclusive mesenteric ischemia from vasoconstriction can also give rise to the disorder.
- Ischemic colitis results from mucosal ischemia in the inferior mesenteric circulation during a low-flow state (hypotension, arrhythmias, sepsis, aortic vascular surgery), often in patients with atherosclerotic disease.1 Vasculitis, sickle cell disease, vasospasm, and marathon running can also predispose to ischemic colitis.
- Chronic mesenteric ischemia is caused by atherosclerosis of all three major abdominal arteries leading to intermittent hypoperfusion.
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Citation
Bhat, Pavat, et al., editors. "Ischemic Intestinal Injury." Washington Manual of Medical Therapeutics, 35th ed., Wolters Kluwer Health, 2016. The Washington Manual, www.unboundmedicine.com/washingtonmanual/view/Washington-Manual-of-Medical-Therapeutics/602579/all/Ischemic_Intestinal_Injury.
Ischemic Intestinal Injury. In: Bhat PP, Dretler AA, Gdowski MM, et al, eds. Washington Manual of Medical Therapeutics. Wolters Kluwer Health; 2016. https://www.unboundmedicine.com/washingtonmanual/view/Washington-Manual-of-Medical-Therapeutics/602579/all/Ischemic_Intestinal_Injury. Accessed December 2, 2023.
Ischemic Intestinal Injury. (2016). In Bhat, P., Dretler, A., Gdowski, M., Ramgopal, R., & Williams, D. (Eds.), Washington Manual of Medical Therapeutics (35th ed.). Wolters Kluwer Health. https://www.unboundmedicine.com/washingtonmanual/view/Washington-Manual-of-Medical-Therapeutics/602579/all/Ischemic_Intestinal_Injury
Ischemic Intestinal Injury [Internet]. In: Bhat PP, Dretler AA, Gdowski MM, Ramgopal RR, Williams DD, editors. Washington Manual of Medical Therapeutics. Wolters Kluwer Health; 2016. [cited 2023 December 02]. Available from: https://www.unboundmedicine.com/washingtonmanual/view/Washington-Manual-of-Medical-Therapeutics/602579/all/Ischemic_Intestinal_Injury.
* Article titles in AMA citation format should be in sentence-case
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