Abdominal Aortic Aneurysm (AAA)

The aorta is the body's primary blood vessel, responsible for supplying oxygen-rich blood from the heart to various organs. A bulge or weakened section in the aorta wall can pose a significant risk, potentially leading to rupture or dissection over time as it enlarges. A rupture of the aorta can cause severe internal bleeding, which may be fatal if not treated promptly. Aortic aneurysms are most prevalent in the abdominal section of the aorta, leading to the designation of abdominal aortic aneurysms or AAAs. Conversely, thoracic aortic aneurysms occur in the chest segment.

What leads to the development of abdominal aortic aneurysms?

The formation of an abdominal aortic aneurysm — or AAA — can be attributed to various factors, although the precise cause is challenging to determine. Experts suggest that atherosclerosis, characterized by plaque accumulation in arteries, is a significant factor, along with:

Age
Gender (Men are four to five times more likely to develop AAAs)
Genetic predisposition/family history
Elevated cholesterol levels

Hypertension
Diabetes
Obesity
Tobacco use

AAA may also arise from connective tissue disorders, congenital anomalies, arterial inflammation, trauma and infections.

Recognizing the symptoms of AAA

Regrettably, many abdominal aortic aneurysms are asymptomatic, earning AAA the nickname “silent killer.” Symptoms of AAA often go unnoticed. Individuals with abdominal aortic aneurysms might experience a pulsating sensation in the abdomen, reminiscent of a heartbeat. The most prevalent symptom of AAA is pain, which can range from dull to severe and typically manifests in the abdomen, chest, lower back or groin area. Sudden, intense pain can be a precursor to an impending aneurysm rupture, necessitating immediate emergency assistance.

Treatment options for abdominal aortic aneurysms

Treatment for an aneurysm depends on its size and location. A vascular specialist may suggest regular monitoring, lifestyle modifications such as weight loss or quitting smoking, medication to manage blood pressure and cholesterol, or minimally-invasive surgical repair.

Detecting and treating aneurysms

Vascular surgeons at Tanner Vascular Surgery advise that individuals over 65 who have smoked should undergo screening for AAA using a straightforward ultrasound, which can detect symptoms of AAA and guide necessary treatment.

The treatment approach for AAA varies based on the aneurysm's size and location. When surgical intervention is required, minimally invasive techniques allow most patients to return home the following day.

Abdominal Aortic Aneurysm Frequently Asked Questions

Is walking beneficial if you have an aortic aneurysm?
Walking can enhance cardiovascular health, but it's crucial to seek personalized advice from your healthcare provider.

What causes an aneurysm to rupture?
Factors like high blood pressure, physical trauma or stress can heighten the risk of an aneurysm rupture.

Who is most at risk for an aortic aneurysm?
Men over 65, especially those with a history of smoking or familial aneurysm history, face higher risks.

At what age are aneurysms most commonly diagnosed?
Aneurysms are predominantly detected in individuals over 65 years old.

How is aortic aneurysm pain characterized?
The pain is typically described as a profound, severe and persistent ache in the abdomen or back.