Four types of acute mesenteric ischemia,”1. Arterial embolism – cardiac origin, symptoms are sudden and painful2. Arterial thrombosis – most have atherosclerotic disease, gradual sx 3. Nonocclusive mesenteric ischemia: splanchic vasoconstriction secondary to low CO

Four types of acute mesenteric ischemia,”1. Arterial embolism – cardiac origin, symptoms are sudden and painful2. Arterial thrombosis – most have atherosclerotic disease, gradual sx 3. Nonocclusive mesenteric ischemia: splanchic vasoconstriction secondary to low CO

typically seen in critically elderly patients 4. Venous thrombosis: gradual worsening of symptoms”