Brief Answer: Hi and welcome to XXXXXXX Detailed Answer: Thanks for the query. Small bowels blood supply come from jejunal and ileal branches of superior mesenteric artery. Inferior mesenteric artery supplies part of descending colon and upper part of rectum. In colectomy, subtotal colectomy, left hemicolectomy or rectal resections, inferior mesenteric artery is ligated( it means it is occluded with sutures). Usually it is done close to the origin at 1cm apart from aorta. So ct scan probably verified this surgical ligation(maybe radiologist didnt read your medical history),but also it may mean that this 1cm of residual IMA is occluded with thrombus. In every case,this is normal and since you dont have colon,you dont need IMA. So this is not cause of your symptoms. By the way, small bowel ischaemia usually results from occlusion of superior mesenteric artery and if this artery is normal,you dont have to be concerned about bowel ischaemia. Bacterial overgrowth is possible but it would develop much earlier. however you should do D-xylose test to rule this out. Bowel obstruction due to adhesion is very common after abdominal procedures,especially colectomies. It would manifest with abdominal distension and opstipation and the best way to diagnose it is to do barium exam,not CT scan. IBS isnt common after total colectomies. I dont know is there "pouch" in your case or stoma,but certain degree of abdominal pain and discomfort is expected and it should be terated mainly by changing dietary habits. Of course, if pain persist ,you should do those tests I ve mentioned to rule out some specific cause. Wish you good health. Feel free to ask. Regards

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Brief Answer: Hi. Detailed Answer: Jejunal and ileal arteries are small but also visible on CT angiography,of course when catheterisation is used test is more specific. I am sure that radiologist would describe occlusion of these arteries if there was one. Rarely there is isolated occlusion of these small arteries,unless you have atrial fibrilation. usually,only SMA is problematic and SMA trombosis will cause serious consequances. Jejunal and ileal arteries form lot of collaterals so it should cause serious bowel infarction unless there is very severe occlusion. However,some chronic thrombosis or atherosclerosis of bowel arteries can be cause of unexplained abdominal pain, especially postprandial. If there are no proven adhesions or other causes of pain,then you can presume it is ischameic colitis and try with empiric therapy with antiagregatory medicines, blood lipids and sugar regulation and BP regulation. It should improve blood flow,but effect on symptoms are always unpredictable

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Brief Answer: Hi Detailed Answer: Yes, it may cause pain which is not related to eating. this is similar to angina pectoris; in most cases it activates during exercise but sometimes it may be felt in rest. So intestinal blood flow is affected by digestion but also many other factors such as certain drugs,food that you take, stress, environment temperature etc. I dont think this is something related to surgery. the only possible such late complication could be adhesions formation. if there is no abdominal distension and you have frequent stool,then i doubt this can be bowel obstruction due to adhesions. Some patient use antispasmodics and it may help. but if pain persist,you should do barium follow-through. Till that,try to be patient and find food that which aggravate symptoms, eat smaller meals and lot of fluids. i am sure this is not something serious.

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