Understanding Abdominal Aortic Aneurysm (AAA)
The aorta is the largest artery in your body, carrying oxygen-rich blood from your heart to the rest of your body. As it travels from the chest into the abdomen, it supplies blood to critical organs like your legs, kidneys, and digestive tract. When the wall of the abdominal portion of the aorta weakens and begins to bulge, it forms what is known as an Abdominal Aortic Aneurysm (AAA).
An AAA can grow silently over time and, if left untreated, may rupture. A ruptured AAA causes severe internal bleeding and is often life-threatening. In the United States, nearly 200,000 people are diagnosed with AAA each year, and approximately 15,000 die annually from a rupture. Early detection is key to preventing such outcomes, and the board-certified Vascular physicians of Premier Vascular & Vein Center in Knoxville, TN, are here to help.
Causes and Risk Factors
An AAA often results from a breakdown in the structural proteins of the aortic wall. Several risk factors increase the likelihood of developing this condition:
- Age: Individuals over 60 are at higher risk.
- Gender: Men are more likely to develop AAA than women.
- Smoking: A major risk factor that weakens the aortic wall.
- High blood pressure: Puts extra strain on arterial walls.
- Atherosclerosis: Hardening of the arteries contributes to aneurysm formation.
- Family history: Genetics can play a role.
- Chronic lung disease: Often linked to smoking, this increases AAA risk.
Symptoms of AAA
One of the challenges of AAA is that it often presents no symptoms and is typically discovered incidentally during imaging for other medical reasons. When symptoms do occur, they may include:
- Persistent back pain
- A pulsing sensation in the abdomen
- Groin pain
- Sores on the feet (due to compromised circulation)
If an aneurysm ruptures, patients may experience sudden, severe abdominal or back pain, dizziness, and loss of consciousness. A ruptured AAA is a medical emergency.
Diagnosis
Since AAA is often asymptomatic, screening is critical for those at risk. Diagnosis may involve:
- Ultrasound: A simple, non-invasive way to detect an aneurysm.
- CT Scan: Provides detailed images and is useful for surgical planning.
- MRI: Occasionally used for more detailed imaging.
Medicare and most insurance plans cover a one-time screening ultrasound for men aged 65 to 75 who have ever smoked.
Treatment Options
Treatment depends on the size and growth rate of the aneurysm:
- Monitoring: Small aneurysms (<5 cm) may only require regular imaging to track growth.
- Lifestyle changes: Stopping smoking, controlling blood pressure, and managing cholesterol can help slow progression.
- Surgery: Larger or rapidly growing aneurysms may require intervention:
- Endovascular Aneurysm Repair (EVAR): A minimally invasive procedure where a stent graft is placed inside the aorta via a catheter to reinforce the weakened area.
- Open Surgery: The weakened section of the aorta is replaced with a synthetic graft.
Early Detection Matters
At Premier Vascular & Vein Center, we emphasize the importance of early detection and personalized care. Our experienced team of Vascular surgeons use advanced technology to diagnose and treat AAAs, helping you avoid serious complications.
If you are over 60, have a history of smoking, or have a family history of aneurysms, talk to us about screening. Early action can save lives.
Contact Premier Vascular & Vein Center in Knoxville today to schedule your consultation.