Ontario Abdominal Aortic Aneurysm (AAA) Screening Program – A Comprehensive Guide
The Ontario Abdominal Aortic Aneurysm (AAA) Screening Program, the first of its kind in Canada, helps save lives through early detection and prevention of aortic ruptures. Using evidence-based guidelines, the program ensures consistent, high-quality screening and follow-up care across the province. Screening is simple, free, and done with a quick, painless abdominal ultrasound. All Ontarians aged 65 and older are encouraged to get screened, as this group faces the highest risk of AAA.
At One Vascular, we are proud to be an approved screening provider for the Ontario AAA Screening Program. If you are age 65 or older (or meet other eligibility criteria), we can facilitate your ultrasound screening, help you understand results, and guide follow-up care.
Why is Abdominal Aortic Aneurysm screening so important?
Most AAAs grow slowly, with no symptoms until they become large or rupture. Because of this, many AAAs go undetected until it’s too late.
Early detection via screening means better monitoring, earlier treatment, fewer emergencies, lower mortality.
Who qualifies for the AAA Screening Program in Ontario?
Under the Ontario Abdominal Aortic Aneurysm Screening Program (OAAASP):
- All people in Ontario aged 65 years and older are encouraged to be screened for AAA.
- As of June 2025, people who are turning 65 will receive a letter from Ontario Health inviting them to speak with their primary care provider to request an abdominal ultrasound.
- Eligibility is being expanded: by spring 2026, the criteria will more clearly include people aged 65 to 80.
In certain cases, screening may also be more strongly recommended for those who have higher risk: for example past or current smokers, family history of AAA, or people with cardiovascular disease. (Ontario and the Canadian Vascular Surgery guidelines discuss these as higher-risk groups.)
At what age should I get screened for AAA?
- The program focuses on people at age 65 (i.e. when you turn 65) as the starting point.
- Once screened at 65, if no aneurysm is found (or only a small aneurysm / “ectatic” aorta), follow-up depends on size, risk, how fast growth or change might happen.
How often should I be screened for AAA?
- For most people, one screening ultrasound around age 65 is sufficient.
- If the ultrasound reveals an ectatic aorta (i.e. diameter between ~2.5-3.0 cm) or small aneurysm, your provider may recommend periodic follow-up ultrasounds to monitor for growth.
The decision about repeat screening depends on factors such as: size of aorta, how quickly it’s changing, overall health/life expectancy, risk factors.
What to expect in the AAA screening
- The screening is done by abdominal ultrasound — non‐invasive, safe, quick (often 10-15 minutes), no radiation.
- You’ll receive a screening invitation letter from Ontario Health when you turn 65. If you don’t have a primary care provider, there are programs to help you get one.
Book an AAA Screening With an Expert Today
Our team is here to assist you with all of your vascular health needs. If you are ready to book a consultation or have more questions, get in touch with one of our team members today.
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