DR. N. WHEELER. ACUTE MESENTERIC ISCHAEMIA. BASIC ANATOMY. Celiac artery, SMA, and IMA supply foregut, midgut, and hindgut, respectively Celiac artery: Supplies lower esophagus, stomach, duodenum, liver, pancreas, and spleen SMA:
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Infarction rarely observed with isolated SMV thrombosis, unless collateral flow in peripheral arcades or vasa recta is also affected
Fluid sequestration and bowel wall edema are more pronounced than in arterial occlusion
Colon rarely involved due to good callateral supply
Abu-Daff et al - 30-day mortality in these patients was strongly linked to colonic involvement in ischemia and to short-bowel syndrome. Lack of anticoagulation also may have been a factor. The 5-year mortality, according to the investigators, was primarily related to short-bowel syndrome.