Mesenteric ischemia is the result of decreased or absent blood flow to the intestinal tract. This most commonly occurs over prolonged periods of time as the blood vessels which serves these structures become narrowed. It may also occur from sudden obstruction of a blood vessel. When the blood supply of the intestinal tract or bowel is interrupted, the area which is affected is deficient in oxygen and nutrients and the tissue may become damaged or die.
Causes of Mesenteric Ischemia
The causes of mesenteric ischemia are atherosclerosis and embolization. In atherosclerosis, there is a slow, progressive narrowing of the arteries of the gastrointestinal tract. Emboli, or pieces of blood clot or tissue, may become dislodged into the vascular system. The most common site is the heart or heart valves. The material is swept along with the blood until it becomes lodged at a smaller blood vessel.
Signs and Symptoms of Mesenteric Ischemia
Cramping abdominal pain is the most common symptom. It usually occurs around the umbilicus. The symptoms usually are aggravated by eating and are often relieved when fasting. A sudden complete block of blood to a section of the bowel leads to severe pain and possibly blood in the stool. If the arterial obstruction is caused by an emboli, such as a clot dislodged from the heart, there may be similar damage to other body organs.
advertisement
Find more information
Advertisement
Medical Content Last Updated on 07/12/2008
Disclaimer
The information contained on this site is for the sole purpose of
being informative. This information is not and should not be used or relied upon as medical
advice. Always seek the advice of your physician, nurse
Or other qualified health care provider before you undergo any treatment or
for answers to any questions you may have regarding a medical condition.
If you believe you have a medical emergency, please discontinue use
of MyElectronicMD and call 911 now.
Nothing contained on or provided through the service is intended to be or is
to be used for medical diagnosis or treatment.
Your use of this site is subject to certain terms and conditions.
