Intestinal bleeding

Intestinal ischemia refers to the blockage of the blood vessels supplying the intestinal blood for some reason, resulting in a decrease or loss of blood supply to the intestine, which cannot be used for the physiological activities of the intestine, and congestion, edema or ulcers in the intestinal wall. Necrosis, bleeding, perforation, and peritonitis can occur. Ischemic bowel disease (ischemicboweldisease) is a disease caused by intestinal wall ischemia, hypoxia, and eventually infarction. This disease is more common in elderly patients with arteriosclerosis and cardiac insufficiency. Most of the lesions occurred segmentally with the colonic spleen curvature as the center. Most of the direct causes of colon ischemia are mesenteric arteries and veins, especially vascular occlusion and stenosis caused by atherosclerosis or thrombosis in the superior mesenteric artery. Heart failure and shock cause blood pressure to drop, and insufficient intestinal local blood supply can also be the cause of the disease.

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