Question 1481
{"accessible":false,"alternatives":[{"id":7397,"text":"aortic dissection"},{"id":7398,"text":"atherosclerosis"},{"id":7399,"text":"hemorrhagic shock"},{"id":7400,"text":"superior mesenteric artery embolism"},{"id":7401,"text":"superior mesenteric vein thrombosis"},{"id":7402,"text":"strangulated bowel obstruction"}],"archived":false,"correctAlternativeId":7400,"explanation":"\u003cp\u003eArterial occlusion accounts for 60-85% of acute mesenteric ischemia causes, and of that ~50% are due to superior mesenteric artery (SMA) embolism. ~25% are due to SMA in situ thrombus from atherosclerosis with aortic dissection involving the SMA origin being rare.\u0026nbsp;\u003c/p\u003e\u003cp\u003eLess common causes included non-occlusive mesenteric ischemia (15-30% cases) from causes such as cardiac surgery, certain medications and shock from various causes. Veno-occlusive (e.g. superior mesenteric vein thrombus) and mixed (e.g. strangulated bowel obstruction) are less common causes.\u0026nbsp;\u003c/p\u003e","id":1481,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1980","nextQuestionPath":"/articles/arterial-occlusive-mesenteric-ischaemia/questions/1232","relatedArticles":[{"id":1528,"title":"Ischemic colitis","link":"/articles/ischaemic-colitis?lang=us"},{"id":19015,"title":"Small bowel ischemia","link":"/articles/small-bowel-ischaemia?lang=us"},{"id":1514,"title":"Mesenteric ischemia","link":"/articles/mesenteric-ischaemia?lang=us"},{"id":76094,"title":"Non-occlusive mesenteric ischemia","link":"/articles/non-occlusive-mesenteric-ischaemia?lang=us"},{"id":18804,"title":"Veno-occlusive mesenteric ischemia","link":"/articles/veno-occlusive-mesenteric-ischaemia?lang=us"},{"id":75991,"title":"Strangulating bowel obstruction","link":"/articles/strangulating-bowel-obstruction?lang=us"}],"alsoUsedIn":[{"id":623,"kind":"Course","title":"Lectures by Vikas Shah - page 623","link":"https://radiopaedia.org/courses/lectures-by-vikas-shah/pages/623"},{"id":623,"kind":"Course","title":"Radiopaedia 2020 - Lectures Only - page 623","link":"https://radiopaedia.org/courses/radiopaedia-2020-exclusive/pages/623"},{"id":623,"kind":"Course","title":"2020 Virtual Conference Private Use - page 623","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/623"},{"id":685,"kind":"Course","title":"Abdominal Emergency Radiology Course - page 685","link":"https://radiopaedia.org/courses/abdominal-emergency-radiology-course-online/pages/685"},{"id":685,"kind":"Course","title":"2020 Virtual Conference Private Use - page 685","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/685"}],"stem":"\u003cp\u003eWhat is the most common cause of acute mesenteric ischemia?\u0026nbsp;\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/1481"}],"attemptsPercentages":[{"alternativeId":"7397","percentage":2},{"alternativeId":"7402","percentage":9},{"alternativeId":"7400","percentage":66},{"alternativeId":"7401","percentage":6},{"alternativeId":"7399","percentage":6},{"alternativeId":"7398","percentage":11}],"promptToLogin":false,"questionManager":false,"articleId":"arterial-occlusive-mesenteric-ischemia"}