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This is known as a closed-loop obstruction because there exists an isolated ("closed") loop of bowel. Acute volvulus often requires immediate surgical intervention to untwist the affected segment of bowel and possibly resect any unsalvageable portion. [11] Volvulus occurs most frequently in middle-aged and elderly men. [11]
The narrow mesentery predisposes some cases of malrotation to midgut volvulus, a twisting of the entire small bowel that can obstruct the mesenteric blood vessels leading to intestinal ischemia, necrosis, and death if not promptly treated. The fibrous Ladd's bands can constrict the duodenum, leading to intestinal obstruction.
Mesenteric ischemia, embolic or thrombotic events that may occur in the arteries or veins that supply or drain the intestines respectively, leading to disruption of blood supply to the intestines and ischemia. [4] Volvulus, a twisting of the small intestine often caused by intestinal malrotation that quickly cuts off blood supply and leads to ...
Thrombosis of the superior mesenteric vein can cause mesenteric ischemia also known as ischemic bowel. Mesenteric ischemia can also result from the formation of a volvulus, a twisted loop of the small intestine that when it wraps around itself and also encloses the mesentery too tightly can cause ischemia. [13]
An ileosigmoid knot or compound volvulus is an uncommon cause of intestinal blockage. [1] The condition arises when ileum loops wrap around the bottom of a redundant sigmoid loop. [2] In some countries in Africa, Asia, and the Middle East, the ileosigmoid knot is a well-known ailment; this condition is uncommon in the West. [3]
Sigmoid colon volvulus, also known as sigmoid volvulus, is volvulus affecting the sigmoid colon. It is a common cause of bowel obstruction [ 1 ] and constipation . It is common in Asia, India (7% of intestinal obstruction ) and especially South India because of the high fibre diet.
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 ...
The small intestine can also be obstructed by a volvulus, a loop of intestine that becomes twisted enclosing its attached mesentery. This can cause mesenteric ischemia if severe enough. A common disorder of the bowel is diverticulitis. Diverticula are small pouches that can form inside the bowel wall, which can become inflamed to give ...