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A 50-year-old member asked:

what is the mortality rate for abdominal aortic aneurysms?

5 doctor answers21 doctors weighed in
Dr. Oliver Aalami
Vascular Surgery 23 years experience
Depends on size: The risk of rupture for aaas is associated with the diameter of the aorta. Hear are some rough rupture risks... <5cm 3%/yr, 5cm 6%/yr, 5.5cm 7.6%/yr, 6cm 7-10%/yr, 7cm 25%/yr, 8cm 40%/yr. The risk of a major adverse event from an elective AAA repair is less than 3% (roughly). Eighty percent of people with ruptured aneurysms traditionally don't make it. These stats have improved w/ stents.
Dr. Howard Rubin
Cardiology 47 years experience
Abdominal aneurysm : Risk of rupture increases once the aneurysm reaches 5cm diameter such that the risk of surgical repair to avoid rupture is less than the risk of rupture at that point.
Dr. Vasudev Ananthram
Cardiology 32 years experience
Very high if rupture: Rate of rupture: 5 to 6 cm is 5 to 15%; 6 to 7 cm 10 to 20%; 7 to 8 cm 20 to 40%. Also if the aneurysm increases in size by 8 mm in a year the risk of rupture is high even if less than 5 cm. Hence not only is attention paid to the size but also the rate of growth. Once it ruptures the mortality rate is greater than 50%. The key is to repair before rupture either by surgery or stent graft.
Dr. Oliver Aalami
Vascular Surgery 23 years experience
Depends: The risk of rupture for aaas is associated with the diameter of the aorta. Here are some rough rupture risks... <5cm 3%/yr, 5cm 6%/yr, 5.5cm 7.6%/yr, 6cm 7-10%/yr, 7cm 25%/yr, 8cm 40%/yr. The risk of a major adverse event from an elective AAA repair is less than 3% (roughly). Eighty percent of people with ruptured aneurysms traditionally don't make it. These stats have improved w/ stents.
Dr. Howard Rubin
Cardiology 47 years experience
AAA: Onceit reaches 5.5 cm diameter, then the risk of rupture with almost certain death is less than the risk of repair of the aneurysm.

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