Mesenteric ischemia

Mesenteric ischemia. It is a condition that becomes inflamed and injures the small intestine due to insufficient blood supply . It occurs when there is a narrowing or blockage of one or more of the three major arteries supplying both the large intestine and the small intestine, these are called the mesenteric arteries.


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  • 1 Symptoms
  • 2 Causes
    • 1 Acute mesenteric ischemia
    • 2 Chronic mesenteric ischemia
  • 3 Treatment
  • 4 Source


symptom of mesenteric ischemia can be severe abdominal pain that can come on suddenly. The pain can be followed by diarrhea . Some people with this condition may have blood in the stool , vomiting , fever, and bloating of the abdomen . You may also have a loss of appetite. In general, eating can cause many of these symptoms to occur , which can lead to a lack of interest in food.


Mesenteric ischemia can appear suddenly (acute) or over time (chronic). It may also be due to a blockage in a vein .

Acute mesenteric ischemia

The affected acute mesenteric ischemia occurs suddenly and can be caused by:

  • Blood clot that blocks one of the arteries in the small intestine. A blood clotis the most common cause of acute mesenteric ischemia, and may be the result of congestive heart failure , irregular heart rhythm ( arrhythmia ), or a heart attack .
  • Intestinal obstructionin the artery that slows or stops blood flow, often as a result of the accumulation of fatty deposits along the wall of an artery ( atherosclerosis ).
  • Low blood pressure due to shock, heart failure, certain medications, or chronic kidney failure . The hypotension may reduce blood flow to the small intestine . This case is more common in people with other serious illnesses or some degree of atherosclerosis . This type of acute mesenteric ischemia is sometimes called non-occlusive ischemia.

Chronic mesenteric ischemia

Chronic mesenteric ischemia, also known as intestinal angina, occurs as a result of the gradual accumulation of fatty deposits on the wall of an artery (atherosclerosis). Chronic mesenteric ischemia can progress to acute mesenteric ischemia, especially if a blood clot forms inside an artery .


Acute ischemia of the mesenteric arteries constitutes a medical emergency. Treatment may include:

  • Medicines to dissolve clots and dilate the mesenteric arteries (vasodilators) if the problem is caused by a blood clot.
  • Surgery to treat mesenteric ischemia.
  • The surgeryfor prolonged ischemia of mesenteric arteries involves removing the blockage and reconnecting the arteries to the aorta. Another procedure is to create a shunt around the obstruction and it is usually done with a plastic tube graft.
  • Introduction of a stent. This stent can be used as an alternative to surgery to enlarge the blockage of the mesenteric artery or to deliver medicationsdirectly to the affected area. This is a new technique and should only be performed by experienced doctors. The clinical outcome is generally better with surgery.


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