TY - CHAP M1 - Book, Section TI - Colitis, Ischemic A1 - Doherty, Gerard M. PY - 2010 T2 - Quick Answers Surgery AB - • Most common form of GI ischemia• May occur following low-flow states: shock, myocardial infarction, abdominal aortic aneurysm (AAA) repair• Reversible or irreversible• Vascular compromise by occlusive or nonocclusive mechanisms• May affect any portion of colon• Watershed areas (splenic flexure, rectosigmoid junction) especially vulnerable• No pathognomonic findings or signs; requires high index of suspicion SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/19 UR - accesssurgery.mhmedical.com/content.aspx?aid=58107684 ER -