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Intestinal ischemia; Other names: Bowel ischemia: Computed tomography (CT) showing dilated loops of small bowel with thickened walls (black arrow), findings characteristic of ischemic bowel due to thrombosis of the superior mesenteric vein. Specialty: General surgery, vascular surgery, gastroenterology: Symptoms: Acute: sudden severe pain [1]
Bowel infarction or gangrenous bowel represents an irreversible injury to the intestine resulting from insufficient blood flow. It is considered a medical emergency because it can quickly result in life-threatening infection and death. [1] Any cause of bowel ischemia, the earlier reversible form of injury, may ultimately lead to infarction if ...
Ischemic colitis (also spelled ischaemic colitis) is a medical condition in which inflammation and injury of the large intestine result from inadequate blood supply . Although uncommon in the general population, ischemic colitis occurs with greater frequency in the elderly, and is the most common form of bowel ischemia.
Volvulus causes severe pain and progressive injury to the intestinal wall, with accumulation of gas and fluid in the portion of the bowel obstructed. [11] Ultimately, this can result in necrosis of the affected intestinal wall, acidosis, and death. This is known as a closed-loop obstruction because there exists an isolated ("closed") loop of bowel.
Coronal reformatted MDCT image showing extensive pneumatosis intestinalis in the left upper quadrant small bowel. The pneumatosis is more cystic and nodular in the small bowel in the midline and the right of midline. This patient had a relatively benign presentation without bowel ischemia and was treated conservatively.
Ischemic bowel may refer to: Ischemic colitis, ischemia of the large bowel; Mesenteric ischemia, ischemia of the small bowel This page was last edited on 10 ...
Acute megacolon can also lead to ischemic necrosis in massively dilated intestinal segments. This is explained by Pascal's law and Laplaces's law. Pascal's principle states that a change in pressure at any point in an enclosed fluid at rest is transmitted undiminished to all points in the fluid; the pressure across all parts of the lumen is equal.
Ileus may increase adhesion formation, because intestinal segments have more prolonged contact and intestinal distention causes serosal injury and ischemia. It is usually treated with aggressive fluid support, prokinetics , and anti-inflammatories.