Coronary Artery Aneurysm: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Coronary Artery Aneurysm?
A cardiologist usually manages this condition. Heart surgeons may be involved if surgery is needed. Children with aneurysms from Kawasaki disease are often treated by a pediatric cardiologist. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What it is
A coronary artery aneurysm is a bulge or ballooning in the wall of a coronary artery, a blood vessel that carries blood to the heart muscle. Some aneurysms are small and cause no trouble, while others can lead to blood clots or reduce blood flow to the heart.
Symptoms
Many people feel nothing at all. When symptoms do happen, they often come from reduced blood flow to the heart muscle: chest pain or pressure, especially during activity, or shortness of breath. If a clot forms and blocks the artery, it can cause a heart attack.
Causes and who gets it
In adults, the most common cause is atherosclerosis, the buildup of fatty plaque inside the artery walls, which can weaken the artery and let it stretch. Other causes include inflammation, artery injuries, and conditions present from birth. In children, Kawasaki disease is a leading cause. Risk rises with age, smoking, high blood pressure, and high cholesterol.
How doctors diagnose it
Doctors often find a coronary artery aneurysm by accident while looking for something else. Tests that can show the bulge include a coronary angiogram, an X-ray movie of the arteries taken after dye is placed inside them, and a CT scan. An echocardiogram, an ultrasound of the heart, can also help.
Treatment
Treatment depends on the aneurysm's size and whether it blocks blood flow. Small aneurysms are often watched with regular imaging and medicines such as blood thinners, aspirin, and cholesterol or blood pressure drugs. Larger ones or those causing symptoms may need a stent or surgery.
When to see a doctor
See a doctor if you have chest pain or pressure, shortness of breath, or unusual tiredness. Call 911 right away if chest pain is severe, lasts more than a few minutes, or comes with sweating, nausea, or pain spreading to the arm or jaw. Keep all follow-up appointments even if you feel fine.
How a direct primary care or concierge doctor fits in
A direct primary care or concierge doctor can be a first stop when symptoms appear and can refer you to a cardiologist quickly. They can also help manage risk factors like blood pressure, cholesterol, and smoking, and coordinate follow-up care.
Common questions
Is a coronary artery aneurysm the same as an aneurysm in the brain or aorta?
No. A coronary artery aneurysm happens in an artery that supplies the heart muscle. Aneurysms in the brain or aorta are different problems in different vessels.
Can a coronary artery aneurysm go away on its own?
Small ones sometimes stay the same size for years, and some may shrink. A cardiologist uses regular imaging to track any change.
Can I exercise if I have a coronary artery aneurysm?
Many people can exercise safely, but ask a cardiologist first. The right level depends on the aneurysm size and heart health.
What is the link between Kawasaki disease and this condition?
Kawasaki disease is a childhood illness that inflames blood vessels and can weaken coronary artery walls, leading to aneurysms. Adults who had it may need long-term checkups.
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Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
