Definitions for abdominal aortic aneurysm

This page provides all possible meanings and translations of the word abdominal aortic aneurysm

Princeton's WordNet

  1. abdominal aortic aneurysm, AAA(noun)

    an aneurysm of the abdominal aorta associated with old age and hypertension


  1. Abdominal aortic aneurysm

    Abdominal aortic aneurysm is a localized dilatation of the abdominal aorta exceeding the normal diameter by more than 50 percent, and is the most common form of aortic aneurysm. Approximately 90 percent of abdominal aortic aneurysms occur infrarenally, but they can also occur pararenally or suprarenally. Such aneurysms can extend to include one or both of the iliac arteries in the pelvis. Abdominal aortic aneurysms occur most commonly in individuals between 65 and 75 years old and are more common among men and smokers. They tend to cause no symptoms, although occasionally they cause pain in the abdomen and back or in the legs. The major complication of abdominal aortic aneurysms is rupture, which is life-threatening, as large amounts of blood spill into the abdominal cavity, and can lead to death within minutes. Mortality of rupture repair in the hospital is 60% to 90%. Surgery is recommended when the aneurysm is large enough that the risk of surgery is less than the risk of rupture. In open surgery, the surgeon opens the abdomen and stitches in a replacement section of artery; in endovascular surgery the surgeon feeds the replacement section through the patient's artery and replaces it from inside.

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