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What is ABDOMINAL AORTIC ANEURYSM?

Dr. Sunil Dwivedi

Dr. Sunil Dwivedi

  Vasanth nagar, Bengaluru     Jan 27, 2017

   2 min     

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The aorta is the major blood vessel that supplies blood to the body. An abdominal aortic aneurysm (AAA) is an enlarged and weakened area in the lower part of the wall of the aorta. A normal aorta is approximately one inch or less in diameter and it runs from the heart passing through the center of the chest and abdomen. In general, aneurysms can develop anywhere along the length of aorta. Aneurysms in the upper part of the aorta are called thoracic aortic aneurysms. But, aneurysms are more common in lower parts of aorta and called as abdominal aortic aneurysms. These aneurysms may also be referred to as AAA or triple A.

An aneurysm can grow to be more than five inches in diameter. Due to high pressure of blood flowing through the artery, the weakened area enlarges like a balloon. It is more common to see large aneurysms bursting as compared to the smaller ones.

This results in internal bleeding that can lead to death unless treated immediately by an experienced cardiovascular surgeon. AAAs are considered a serious health condition because they can burst or rupture. Only about half of patients with a ruptured AAA who get to a hospital survive. Treatment of AAA may vary from watchful waiting to emergency surgery depending on the size and rate at it is growing. Once a diagnosis of AAA is made, doctors will closely monitor it so that surgery can be planned if it's necessary. It is very risky to wait for surgery till the time AAA ruptures.

Risk factors

Risk factors for abdominal aortic aneurysm include:

  • Increasing Age. AAAs are seen most often in people age 65 and older.
  • Smoking. Smoking is a strong risk factor for the development of an abdominal aortic aneurysm. The duration of smoking is directly proportional to the risk.
  • Atherosclerosis. The buildup of plaque that can damage the lining of a blood vessel is called Atherosclerosis. It increases the risk of an aneurysm.
  • Male sex. Abdominal aortic aneurysms are much more common in men than women.
  • Family history. An increased risk of AAA is seen in people who have a family member with abdominal aortic aneurysm. Also, aneurysms develop at a younger age and are at higher risk of rupture in people who have a family history of aneurysms.
Tags:  ABDOMINAL AORTIC ANEURYSM, aorta, heart, Heart diseases, Atherosclerosis,

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