Abdominal aortic aneurysm: operate or monitor
Reviewed on July 17, 2026
Learning that you have an abdominal aortic aneurysm often brings fear, even when it was found by chance during a routine exam. An aneurysm is a dilation of the aorta, and not every aneurysm needs immediate surgery. Many are small and simply monitored over time, while others — larger or fast-growing — raise the question of treatment. This article explains, in a general and educational way, the factors that usually weigh on this decision, to help you have a better conversation with your medical team.
What an aneurysm is and why it matters
The aorta is the largest artery in the body, carrying blood from the heart to the abdomen and legs. When part of it dilates beyond normal, forming a kind of pouch, we call it an aneurysm. The main risk is that, over time, this weakened wall may rupture, which is a serious emergency.
Many aneurysms cause no symptoms and are discovered on ultrasounds or CT scans done for other reasons. That is why imaging follow-up is a central part of care, even when no intervention is done right away.
When monitoring is usually the choice
Small aneurysms generally have a low risk of rupture, and periodic follow-up with imaging is a frequently adopted approach. The idea is to observe the size and the growth rate over time.
During this period, controlling factors such as blood pressure and stopping smoking are often emphasized, since they may influence how the aneurysm evolves. Decisions, however, are always individualized and depend on many details of your case.
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Request a second opinionWhen treatment enters the discussion
Treatment tends to be considered when the aneurysm reaches a certain size, grows quickly, or starts causing symptoms. There are two main approaches: conventional open surgery and endovascular repair, done from inside the vessel with a stent-graft.
Each technique has advantages, limitations, and specific criteria. The choice depends on the aneurysm's anatomy, age, clinical conditions, and patient preferences, discussed case by case with the team.
Why a second opinion helps
The decision between operating and monitoring, and between the different repair techniques, involves weighing risks and benefits that are not the same for everyone. A second opinion can help confirm whether the timing and type of approach make sense for your case.
Reviewing measurements, reports, and images with an independent specialist can bring more clarity and confidence, especially given a decision that usually weighs heavily on the patient and family.
Frequently asked questions
Does every aortic aneurysm need surgery?
Not necessarily. Many small aneurysms are simply monitored with imaging, and treatment is usually discussed based on size, growth, and other individual factors assessed by the team.
What is the difference between open surgery and endovascular repair?
Open surgery repairs the aneurysm through a larger incision, while endovascular repair uses a stent-graft placed inside the vessel. Each approach has its own indications, and the choice depends on each patient's anatomy and conditions.
How do I submit my case for a second opinion on Revidra?
You can upload your exams and reports, such as ultrasounds and CT scans, through the Revidra platform. An independent specialist reviews the material and returns a structured written opinion to help you better understand your options.
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Request a second opinionEducational content, for informational purposes. It does not replace consultation, diagnosis or treatment with a physician, nor does it constitute a teleconsultation or emergency care.